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Home My WebLink About3583; Cannon Road Lift Station; Cannon Road Lift Station Noise Impact Report; 2001-03-01m m m •D • * City of Carlsbad Cannon Road Lift Station Noise Impact Report d March 2001 Prepared for: City of Carlsbad Prepared by: DHK Engineers, Inc. Escondido, California ^ EXECUTIVE SUMMARY J The noise impact analysis for the City of Carlsbad Cannon Road Lift Station (CRLS) on the noise (nuisance) levels at nearby critical receptors is presented in this report. The proposed _ pump station will have a 2.8 million gallons per day (mgd) average flow capacity and 6.6 J mgd Peak Wet Weather Flow (PWWF) at ultimate build-out. The primary location is adjacent to the existing lift station, east of the proposed Cannon Road, occupying part of the m existing storm water desilting basin. Figure ES-1 provides a facility overview of the project jj area. m The objectives of this analysis are: ] II 1. To evaluate the anticipated noise impacts associated with the proposed CRLS located at the neighboring receptors; and 2. To verify that the City of Carlsbad Design Criteria for noise control of the proposed project can comply with the City's General Plan noise criterion. The methodology used in the analysis is as follows: 1. Establish regulatory noise impact goals at critical receptors in the area surrounding CRLS, including residential and biological. «! ^ 2. Determine the noise impacts associated with mechanical equipment at CRLS. « 3. Provide design guidance to the City Engineers regarding acoustical features. m The City of Carlsbad Noise Ordinance limits the noise associated with construction m activities to daytime hours only and restricts holiday activities. Located in close proximity to M the CRLS are the Agua Hedionda Lagoon, Canterbury residential development and the future Cannon Road. Based on discussions with City of Carlsbad staff during the project ** kick-off meeting, a 60 dB(A) standard has been set for the lagoon for environmental M reasons. Residential design criterion throughout the State of California range from a daytime ambient level of 55 dB(A) to an evening level of 45 dB(A). m «l Prediction of future noise impacts within a region requires a series of very complex calculations to determine the areas and extent of potential acoustical problems. To properly ^ assess complex systems of multiple noise sources, receptors and environmental factors; •I computer-aided simulation programs have been developed to assist in the calculation process. Due to large area of the project site, low background ambient noise level and ^) project specific environmental features (e.g., lagoon, elevated terrain, etc.); a computer <i simulation program was selected to assist with this project. The computer model calculates the noise generated from the CRLS. 7 • Construction of Cannon Road will add traffic noise to the immediate area. Traffic noise associated with the Cannon Road is not incorporated into the computer model. Although the *i traffic along Cannon Road is anticipated to be high, the CRLS operates on a continuous CANNON ROAD LIFT STATION Air and Noise Modeling Assessment SCALE: 1 INCH = APPROX. 500 FEET SPS = SINGLE POINT SOUND RECEIVER • = ANALYSIS POINT CARLSBAD MUNICIPAL WATER DISTRICT 1000 x 1000 METER SITE MAP DHK ENGINEERS MARCH, 2001 FIGURE ES-1 EXECUTIVE SUMMARY basis and therefore the "worst-case" nighttime (minimal traffic) is assumed to demonstrate CRLS noise compliance. The major noise generating equipment located at the CRLS are the odor control fan and associated exhaust stack. Two scenarios were simulated using SoundPLAN noise prediction software. The two scenarios include 1) the odor control fans without acoustical abatement (e.g. acoustical enclosure) and 2) fans with an acoustical enclosure. The results of the noise prediction simulation are summarized in Table ES-1. The Phoenix Carbon System fans should be equipped with an acoustical enclosure to reduce the acoustical impact on the surrounding area and to meet the 45 dB(A) evening property line requirement. Figure ES-2 provides a noise impact map within 200 meters of the CRLS based on the recommendation. Table ES-1 Project Noise Impact at Receptors within 200 meters of CRLS dB(A) Receptor No., Location & Coordinate Noise Incremental Increase by CRLS Without enclosure i With enclosure # 15- SPS EAST 25M Hill (497.50, 448, 28.93) 16- SPS NORTH 25M (472.50, 473. 00, 10.50) 17- SPS NORTH 50 M (472.50, 500, 9.12) 43.7 41.8 35.5 18- SPS NW of FAN WALL (470, 450, 10.64) | 61.1 19- SPS SOUTH 25M Hill (472.50, 423, 25.88)55.9 | 34.1 1 30.4 | 24.4 1 45.8" I 41.5 20- SPS WEST 25M (447.50, 448, 10.50)43.6 32.4 21- SPS WEST 50M (422.50, 448, 9.12)36.1 25.4 22- CD Lot 14 (622, 540, 10)* # Recommendation * First floor/second floor CD= Canterbury Development (See Figures 4-1,4-2,4-3, 4-4) 17.0/17.3*2.9/3.3* 23- CD Lot 16 (592, 535,9.7)* 24- CD Lot 17 (542, 505, 9.2)* 25- CD Lot 19 (572, 494, 9.2)* 26- CD Lot 22 (6 17, 485, 9.8)* 27- CD Lot 25 (647, 495, 10)* 21.4/21.6* 23.9/25.6* 19.7/20.2* 15.9/16.2* 13.9/14.3* 14.0/18.2* 4.9/5.4* 1.1/1.3* 14.7/14.9* 1 0.0/0.0* LEGEND| STACK & FAN•jjfr SPS RECEIVERFs^ LIFT STATIONDESILTING POND| — CONTOUR LINE_i_j< Oz I1 111 UJ ifioinoinomoinom<~T-T-cMrMOcnTTinincDi TABLE OF CONTENTS m 1.0 INTRODUCTION 1 1.1 OBJECTIVE AND METHODOLOGY 1 2.0 NOISE CRITERION AND ASSUMPTIONS 2M2.1 NOISE BACKGROUND 2 2.2 NOISE CRITERION 2 , 2.3 PHYSICAL ASSUMPTIONS 4 "" 2.3.7 Noise Profiles of the Phoenix Carbon System 4 2.3.2 Point And Area Noise Sources 4 m 3.0 NOISE ASSESSMENT METHODOLGY 6•f 3.1 NOISE SIMULATION MODEL 6 3.7.7 Geo-Data Module 6 3.1.2 Industrial Propagation .7 * 3.7.3 Calculation/Graphics 7 3.1.4 Project Model Parameters 7 m 3.1.5 Grid Map Selection 7 ^ 3.1.6 Noise Abatement Techniques 8 4.0 NOISE SIMULATION RESULTS 9 4.1 NOISE RESULTS 9 m 5.0 CONCLUSIONS 16 ** 6.0 REFERENCES 17 - m LIST OF TABLES , Table3-l 6 * Table4-l 10 Table4-2 11 ^ Tables-1 16 * . m LIST OF FIGURES ^ Figure 2 - 1 3 Figure 2 -2 5 Figure 4- 1 12 '• Figure 4-2 13 •I Figure4-3 14 Figure 4 -4 15 if * March 2001 Cannon Road Lift Station Page 1 1.0 INTRODUCTION The analysis of the impact of noise from the City of Carlsbad CRLS on the noise (nuisance) levels at nearby critical receptors is presented in this report. A Preliminary Siting Drawing (Reference 1) for the CRLS has recently been completed to assist siting selection. The proposed pump station will have a 2.8 mgd average flow capacity and 6.6 mgd PWWF at ultimate build-out. The primary location is adjacent to the existing lift station, east of the proposed Cannon Road, occupying part of the existing storm water desilting basin. Based on City direction, it is assumed that the odor control configuration selected for the CRLS will be the Phoenix Carbon treatment with sodium hypochlorite addition to the incoming raw wastewater. The Phoenix Carbon treatment system noise generating scores includes a fan and noise from the stack tip. CRLS is located approximately one mile west of Interstate 5. The Cannon Road extension provides an alternative route to S78 and 1-5 and will connect El Camino Real with College Boulevard. The anticipated daily traffic warrants a four-lane roadway. Palomar Airport is located less than one mile south of the proposed project. 1.1 Objective And Methodology The objectives of this analysis are: 1 . To evaluate the anticipated noise impacts associated with the proposed CRLS located at the neighboring receptors; and 2. To verify the City of Carlsbad Design Criteria for the noise control aspects of the proposed project can facilitate compliance with the City's General Plan noise criterion. The methodology used in the analysis is as follows: 1. Establish regulatory noise impact goals at critical receptors in the area surrounding CRLS, including residential and biological. 2. Determine the noise impacts associated with mechanical equipment at CRLS. 3. Provide design guidance to the City Engineers regarding acoustical features. March 2001 Cannon Road Lift Station Page 2 2.0 NOISE CRITERION AND ASSUMPTIONS The noise nuisance criterion is presented in this section. In addition, a description of the noise simulation model and the assumptions applied to determine noise levels at critical receptors are also presented in this section. 2.1 Noise Background Sound is mechanical energy transmitted by pressure waves in a compressible medium such as air. Noise is unwanted sound. Sound is characterized by various parameters that describe the rate of oscillation of sound waves, the distance between successive troughs or crests, the speed of propagation, and the pressure level or energy content of a given sound. In particular, the sound pressure level has become the most common descriptor used to characterize the loudness of an ambient sound level. The decibel (dB) scale is used to quantify sound intensity. Because sound pressure levels can vary by over one million times within the range of human hearing, a logarithmic loudness scale (similar to the Richter Scale used for earthquake intensity) has been devel- oped to keep sound intensity numbers at a convenient and manageable level. Since the human ear is not equally sensitive to all sound frequencies within the entire spectrum, noise measurements are weighted more heavily within those frequencies of maximum human sensitivity (middle A and its higher harmonics) in a process called "A-weighting," written as dB(A). Figure 2-1 illustrates the Typical A- Weighted Sound Level of Representative Noise Sources. 2.2 Noise Criterion The City of Carlsbad Noise Ordinance 8.48 NOISE limits the noise associated with construction activities to daytime hours only and restricts holiday activities. Located in close proximity to the CRLS are the Agua Hedionda Lagoon, Canterbury residential development and the future Cannon Road. Based on discussions with City of Carlsbad staff during the project kick-off meeting, a 60 dB(A) standard has been set for the lagoon for environmental reasons. Residential design criterion throughout the State of California range from a daytime ambient level of 55 dB(A) to an evening level of 45 dB(A). Industrial noise level impacts are based on the property line noise limits for stationary noise generators in a residential area as summarized below: Applicable Limit One-Hour Average Sound Level Time Period (Decibels- dB(A)) 7 a.m. to 7 p.m. 55 7 p.m. to 7 p.m. 45 March 2001 Cannon Road Lift Station Page3 3 2 2 Figure 2-1 Typical Noise Source dBA levels Noise Source dBA Noise at ear level from rustling leaves 20 Room in a quiet dwelling at midnight 32 Soft whisper at five feet 34 Large Department Store 50 to 65 Room with window air conditioner 55 Conversational Speech 60 to 75 Passenger Car at 50 ft. 69 Vacuum cleaner in private home at 10 feet 69 Ringing alarm at two feet 80 Bulldozer at 50 ft 87 Heavy city traffic 90 Home lawn mower 98 Jet aircraft at 500 feet overhead 115 Human pain threshold 120 Reference: Noise Control Reference Handbook, Industrial Acoustics Company ^ March 2001 Cannon Road Lift Station Page 4 mj Construction of Cannon Road will add traffic noise to the immediate area. Traffic noise associated with the Cannon Road is not incorporated into the computer model. Although the m traffic along Cannon Road is anticipated to be high, the CRLS operates on a continuous J basis and therefore the "worst-case" nighttime (minimal traffic) is assumed to demonstrate CRLS noise compliance. M 2.3 Physical Assumptions The analysis requires establishing values for physical parameters such as the noise profiles 1 of the fan and stack, building and noise abatement wall configurations, reflective properties • of the building surfaces and orientation to receptors. Key physical assumptions are described below.MI •I 2.3.1 Noise Profiles of the Phoenix Carbon System The following assumptions are based on the fan noise profiles associated with the Phoenix ** Carbon System without an acoustical enclosure and with an enclosure: M Scenario 1: (Odor Control System without fan acoustical enclosure) m Phoenix Carbon (fan and vessel) (two systems) @ 75 dB(A) at 5 feet from unit (based on fan acoustical data presented in Appendix A) *" Booster Fan and Inlet Silencer (one system) @ 65 dB(A) at 5 feet from unit i Exhaust Stack @ 70.0 dB(A) at stack tip directed up (based on a exit velocity of * 2800 feet per minute) J Scenario 2: (Odor Control System with fan acoustical enclosure) Phoenix Carbon (fan and vessel) (two systems) @ 60 dB(A) at 5 feet from unit J Booster Fan with Inlet Silencer @ 50 dB(A) at 5 feet from unit 2 Exhaust Stack @ 70.0dB(A) at stack tip directed up (based on a exit velocity of 2800 feet per minute) mi J 2.3.2 Point And Area Noise Sources The locations of noise sources and receptors, release height of the odor exhaust stack, _ dimensions and building shape, equipment location and landscape contours are critical to J the model results. The architectural design proposed in the current (Reference 2) building layout as provided by the Engineer is used in the model. The model should be rerun if •I significant architectural changes and or additions are made in the next design phase. 3 2 . The major noise sources considered for this project is assumed to be adjacent to the CRLS building where the Phoenix Carbon Scrubber will be located. The Design Engineers' preliminary engineering drawings are used to determine the approximate location of the fan and stack. Figure 2-2 provides an aerial photograph of the project area. CANNON ROAD LIFT STATION Scrubber Fans, Booster Fan, and Stack Noise Modeling Assessment SCALE: 1 INCH = APPROX. 500 FEET SPS = SINGLE POINT SOUND RECEIVER • = ANALYSIS POINT CARLSBAD MUNICIPAL WATER DISTRICT 1000 x 1000 METER SITE MAP DHK ENGINEERS MARCH, 2001 FIGURE 2-2 3 March 2001 Cannon Road Lift Station Page 6 3.0 NOISE ASSESSMENT METHODOLGY Prediction of future noise impacts within a region requires a series of very complex calculations to determine the areas and extent of potential acoustical problems. To properly assess complex systems of multiple noise sources, receptors and environmental factors; computer-aided simulation programs have been developed to assist in the calculation process. Due to large area of the project site, numerous noise generating sources, very low background ambient noise levels and project specific environmental features (e.g., lagoon, elevated terrain, etc.); a computer simulation program was selected to assist with this project. 3.1 Noise Simulation Model SoundPLAN Wins, developed by Braunstein +Berndt GmbH, was selected as the most appropriate modeling program for the CRLS Noise Assessment. The selection was based on recent experience on similar projects and the program's ability to calculate multiple sources with various degrees of abatement, multiple receptors and several terrain features. SoundPLAN's main objective is to calculate noise emitted from industrial sources and assess the influence upon receivers. The model data are generated in compliance with standards selected by the user and the results are presented in tabular and/or graphic form. SoundPLAN was developed as a composite noise simulation program for traffic, industrial, rail and airport simulations. The program includes the following modules: Geo-Database, Industrial Noise Propagation, Calculation, and Graphics. 3.1.1 Geo-Data Module The Geo-Data module allows for site specific development of the source, receptor and environmental features of the project. The Geo-Data files allow for layering of various files including source and receptor location (x,y,z) coordinates, buildings, acoustical characteristics (absorptive or reflective), and special features (terrain, ground cover, landscape abatement, and lagoon). Each file can be combined to form various combinations of "situations". A summary of geo-data files is provided in Table 3-1. Table 3 -1 Geo-Data Files File Name Description CONTOURS, geo Terrain mapping including coordinates, elevation and landscape features LARGE CALC AREA .geo Calculation area for project site POINT RECEIVERS.geo Twenty-seven specific point receptors including ^0 residential. Coordinates and elevation. FAN. Geo Coordinate, elevation, and acoustical data for odor control fan H STACK. Geo Coordinate, elevation, and acoustical data for odor control stack gf WALLS. Geo Coordinates and elevation data for acoustical barriers for odor control system. «l PLANT BLDGS. Geo Coordinates, elevation, building height and reflective properties J for the structures within the Cannon Road Lift Station. ROADS. Geo Coordinates and elevation for major roadways within project area _ to facilitate graphics understanding TEXT.geo Receptor identification numbers •Iy 2 March 2001 Cannon Road Lift Station Page 7 3.1.2 Industrial Propagation SoundPLAN provides six industrial propagation calculation choices. Each calculation method is internationally recognized and offers unique computer simulation techniques. German-based VDI 2714/VDI 2720 is identical to ISO 9613 and was used for the simulations. ISO 9613 is a general purpose standard for outdoor noise propagation. VDI 2714/2720, ISO 9613 calculates the sound pressure for a frequency using the following formula: Ls = [Lw + Dj +Ko] - [Ds +ED] Where: Ls sound pressure for a single frequency Lw sound power DI directivity of the source KQ spherical model Ds spreading 2D different contributing factors a. air absorption b. ground absorption c. volume type absorption d. screening "" 3.1.3 Calculation/Graphics «•* The computer simulation program operates in types of "Situations". Prior to the execution of the program, the situation is set-up with the appropriate selection of geo-data files, ^ calculation standard and calculation parameters. The calculation parameters are selected to • - determine the overall area, distances between points, acoustical scale (dB(A) weighted), specific receptor and graphical parameters. * 3.1.4 Project Model Parameters The project and adjacent areas were analyzed for zones with the greatest potential for noise j conflict. Since noise impact is greatly determined by proximity of sources to receptors, the ** CRLS project site and adjacent land to the north, east and south were selected as appropriate areas of study. The location of sensitive receptors, analysis of elevated terrain and i preliminary layout of the CRLS assisted in the determination of the project study area. Geo-Data files were developed and completed to include terrain associated ground cover, j lagoon, acoustical enclosures, walls, equipment and specific receptors. Noise absorption and reflective properties are provided for each geo-data file. A three-sided sound wall is presently provided for the Phoenix Odor Control system. Based on the results of this study, J further acoustical abatement may be considered. _ 3.1.5 Grid Map Selection 1 A noise calculation grid of 50 meters by 50 meters was selected for the entire project area. A height of 1.5 meters was used for the grid map noise calculations. Second floor noise m receptor locations were provided for the residential area immediately north (Canterbury Development) of the project. Two calculation areas were simulated. 3 March 2001 Cannon Road Lift Station Page 8 A "100x100 meter" calculation and a "1000x1000 meter" calculation area were completed to assist in the identification of the areas of impact. 3.1.6 Noise Abatement Techniques Application of the most efficient noise abatement features can be provided at the source of receptors. The closer to either the source or receiver, the better the noise attenuation is. Possible noise reduction options include: " sound absorption material installation on the sound walls, • enclosure of the fan by an acoustical material (simulated in Scenario 2), • installation of a sound wall on the west side of the odor scrubber, • reduction of stack velocity to reduce noise associated with stack discharge, and • possible redirection of the odor control stack. I •i March 2001 Cannon Road Lift Station Page 9 4.0 NOISE SIMULATION RESULTS 4.1 Noise Results Noise modeling was conducted for the pump station configuration described in Section 3. The noise results are summarized in Table 4-1 (without fan acoustical enclosure) and Table 4-2 (with fan acoustical enclosure). A graphical presentation of predicted noise isopleths by the SoundPLAN model are provided as Figure 4-1 (without acoustical enclosure - 100x100 meter), Figure 4-2 (without acoustical enclosure - 1000x1000 meter), Figure 4-3 (with acoustical enclosure - 100x100 meter), Figure 4-4 (with acoustical enclosure - 1000x1000 meter). SoundPLAN input and output files are provided in Appendix B. * m « 2 2 2 2 2 2 March 2001 Cannon Road Lift Station Page 10 m m 4 m Table 4 - 1 Project Noise Impact at Critical Receptors (Without Fan Acoustical Enclosure) dB(A) Receptor No., Location & Coordinate 1 - SPS #1 (23.69, 568.24, 16.50) 2 - SPS #2 (167.67, 763.67,26.50) 3- SPS #3 (215.32, 881.04,31.50) 4- SPS #4 (296.22, 796.73, 16.50) 5- SPS #5 (718.88, 292.75, 71.20) 6- SPS #6 (68 1 .77, 270.22, 7 1 .20) 7- SPS #7 (65 1 .09, 232.85, 62.86) 8- SPS #8 (641.03, 205.13, 62.50) 9- SPS #9 (626.97, 159.13, 62.50) 10- SPS #10 (521.90, 95.21, 37.30) 1 1- SPS #1 1 (440.00, 92.00, 30.20) 12- SPS #12 (365.07, 107.15, 23.30) 13- SPS #13 (461.00, 240.00, 16.75) 14- SPS #14 (436.00, 253.00, 15.20) 15- SPS EAST 25M Hill (497.50, 448, 28.93) 16- SPS NORTH 25M (472.50, 473 .00, 10.50) 17- SPS NORTH 50 M (472.50, 500, 9.12) 18- SPS NW of FAN WALL (470, 450, 10.64) 19- SPS SOUTH 25M Hill (472.50, 423, 25.88) 20- SPS WEST 25M (447.50, 448, 10.50) 21- SPS WEST 50M (422.50, 448, 9. 12) 22- CD Lot 14 (622, 540, 10)* 23- CD Lot 16 (592, 535,9.7)* 24- CD Lot 17 (542, 505,9.2)* 25- CD Lot 19 (572, 494, 9.2)* 26- CD Lot 22 (6 17, 485, 9.8)* 27- CD Lot 25 (647, 495, 10)* *First floor/second floor CD= Canterbury Development Noise Incremental Increase by CRLS 18.3 17.0 17.6 18.0 13.0/13.3* 14.7/15.1* 13.8/14.1* 12.4 14.0 12.7 14.0 15.3 16.7 17.3 43.7 41.8 35.5 61.1 55.9 43.6 36.1 17.0/17.3* 21.4/21.6* 23.9/25.6* 19.7/20.2* 15.9/16.2* 14.7/14.9* March 2001 Cannon Road Lift Station Page 11 Table 4 - 2 Project Noise Impact at Critical Receptors (With Fan Acoustical Enclosure) dB(A) m d Receptor No., Location & Coordinate 1 - SPS #1(23.69, 568.24, 16.50) 2 - SPS #2 (167.67, 763.67,26.50) 3- SPS #3 (215.32, 881.04,31.50) 4- SPS #4 (296.22, 796.73, 16.50) 5- SPS #5 (718.88, 292.75, 71. 20) 6- SPS #6 (68 1 .77, 270.22, 7 1 .20) 7- SPS #7 (65 1 .09, 232.85, 62.86) 8- SPS #8 (641.03, 205. 13, 62.50) 9- SPS #9 (626.97, 159.13, 62.50) 10- SPS #10 (521. 90, 95 .21, 37.30) 11- SPS #1 1 (440.00, 92.00, 30.20) 12- SPS #12 (365.07, 107.15, 23.30) 13- SPS #13 (461.00, 240.00, 16.75) 14- SPS #14 (436.00, 253.00, 15.20) 15- SPS EAST 25M Hill (497.50, 448, 28.93) 16- SPS NORTH 25M (472.50, 473 .00, 10.50) 17- SPS NORTH 50 M (472.50, 500,9.12) 18- SPS NW of FAN WALL (470, 450, 10.64) 19- SPS SOUTH 25M Hill (472.50, 423, 25.88) 20- SPS WEST 25M (447.50, 448, 10.50) 21- SPS WEST 50M (422.50, 448, 9.12) 22- CD Lot 14 (622, 540, 10)* 23- CD Lot 16 (592, 535, 9.7)* 24- CD Lot 17 (542, 505,9.2)* 25- CD Lot 19 (572, 494, 9.2)* 26- CD Lot 22 (617, 485, 9.8)* 27- CD Lot 25 (647, 495, 10)* *First floor/second floor CD = Canterbury Development Noise Incremental Increase by CRLS 7.1 5.8 6.5 6.7 0 0 0 0 0 0 0 0 1.3 2.1 34.1 30.4 24.4 45.8 41.5 32.4 25.4 2.9/3.3* 13.9/14.3* 14.0/18.2* 4.9/5.4* 1.1/1.3* 0.0/0.0* I I I Ml •-> II II II II<vvvvvvvvvvvvvvv m I LEGENDSTACK & FAN•3|(- SPS RECEIVER[\^ LIFT STATION| | | DESILTINS POND| — . CONTOUR LINE_i_i a out \ > "??????????????^H<^vvvvvvvvvvvvvvv CQIUJ -°l V) El vvvvvvvvvvvvvvv1/5 ° « a « 8 ft 9 * 818 8 IB R 1C i«oga: ^UJ COH OUJ -Iso ina 1 m EUl IO Ii<0 Q u.K 0 Ulh- m if2 ?V V «ii jo -a < o < S<" «?t UJa:3 CD I QJ _^ II II II II II II II II II II II II II II II March 2001 Cannon Road Lift Station Page 16 «n m 5.0 CONCLUSIONS The following conclusions are derived from modeling and the data presented in Tables 4- 1 and Table 4-2. Table 5-1 summarizes the predicted noise impact to receptors within 200 meters of the CRLS. Table 5 -1 Project Noise Impact at Receptors within 200 meters of CRLS dB(A) Receptor No., Location & Coordinate 15- SPS EAST 25M Hill (497.50, 448, 28.93) 16- SPS NORTH 25M (472.50, 473. 00, 10.50) 17- SPS NORTH 50 M (472.50, 500, 9.12) 18- SPS NW of FAN WALL (470, 450, 10.64) 19- SPS SOUTH 25M Hill (472.50, 423, 25.88) 20- SPS WEST 25M (447.50, 448, 10.50) 21- SPS WEST 50M (422.50, 448, 9. 12) 22- CD Lot 14 (622, 540, 10)* 23- CD Lot 16 (592, 535,9.7)* 24- CD Lot 17 (542, 505,9.2)* 25- CD Lot 19 (572, 494, 9.2)* 26- CD Lot 22 (6 17, 485, 9.8)* 27- CD Lot 25 (647, 495, 10)* * First floor/second floor CD= Canterbury Development Noise Incremental Without enclosure 43.7 41.8 35.5 61.1 55.9 43.6 36.1 17.0/17.3* 21.4/21.6* 23.9/25.6* 19.7/20.2* 15.9/16.2* 14.7/14.9* Increase by CRLS With enclosure 34.1 30.4 24.4 45.8 41.5 32.4 25.4 2.9/3.3* 13.9/14.3* 14.0/18.2* 4.9/5.4* f.l7i.3* 0.0/0.0* The Phoenix Carbon System fans should be equipped with an acoustical enclosure to reduce the acoustical impact on the surrounding area and to meet the 45 dbA evening property line requirement. m it March 2001 Cannon Road Lift Station Page 17 6.0 REFERENCES 1. City of Carlsbad- Cannon Road Lift Station Preliminary Siting Drawings, CDM, September 2000. 2. City of Carlsbad- Cannon Road Lift Station Preliminary Lift Station Drawings, CDM, December 2000. APPENDIX A Acoustical Information for Phoenix Carbon Fan I 4 ft I I J fc , I I i i I i li li i i i i ii Hartzell Fan, Inc. ESP - Version 1.3.68 - December, 2000 2500 5000 7500 10000 12500 Volume Flow Rate (cfm) 0 Date: 2/5/01 JobRef: Tag*: Proposal #: Rep. Name: J.E. PHILLIPS CO.. INC. Phone* (310)837-6173 Fax* {310)837-6177 A1QOFGOPN3 rd Curved Centrifugal Fan Vol Flow Rate Static Pressure 8. Density .075 FanRPM 1878 Max Safe RPM 2249 Operating Power 10.2 Standard Power 10.2 Static Efficiency 0.74 Outlet Velocity 1802 AMCA Licensed tor Sound and Air Perfomance drive towea Discharge Sound Power Levels referred to 10M2 watts 1 2345678 110 103 101 96 93 87 82 80 87dBA@5.0ft from fan acoustic source (Q=2) Radiated Sound Power Levels referred to 10M2 watts 12345678 106 96 9i, 85 81 74 69 67 ,@ 6.0ft racousttc source (Q=2) UeMet I Sound Is not AMCA Kcenaed. APPENDIX B SoundPLAN Input /Output Files 2 3 2 2 2 2 CANNON ROAD LIFT STATION NOISE ASSESSMENT Run Information - FIGURE 4-1: NO FAN ENCLOSURES Project description Project title: CANNON ROAD LIFT STATION NOISE ASSESSMENT Engineer: DHK Customer: Carlsbad Municipal Water District Description: Small Grid 200 meters x 200 meters Run description Calculation: Single Point Sound Title: FIGURE 4-1: NO FAN ENCLOSURES Run file: SITUATION 2, Figure 4-1 SPS.run Result number: 41 Calculation start: 3/8/2001 9:32:59 PM Calculation end: 3/8/2001 9:33:02 PM Kernel version: 5/22/2000 Run parameters Angle Increment: 1.00' Reflection Depth: 0 Number of reflections: 10 Weighting: dB(A) Standards: Industry: VDI 2714/2720 Air absorption: ISO 3891 Limitation of screening loss: single/multiple 20 dB 125 dB Environment: Air pressure 1013.25 mbar rel. Humidity 30 % Temperature 5 °C DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION NOISE ASSESSMENT Run Information - FIGURE 4-1: NO FAN ENCLOSURES Temperature 5 °C VDI-Parameters for diffraction C1=3 C2=20 Dissection parameters: Distance to diameter factor 2 Minimal Distance [m] 1 m Maximal Difference GND+Diffraction Maximal No. of iterations 4 1 dB Assessment: Geometry data FIGURE 4-1 .sH contains: LARGE CALC AREA.geo CONTOURS.geo WALLS.geo RECEIVERS.geo STACK AND FAN.geo Leq 06-22|22-06|00-24 3/8/2001 9:32:36 PM 3/8/2001 9:32:36 PM 3/8/2001 9:32:36 PM 3/8/2001 9:32:36 PM 3/8/2001 9:32:36 PM 3/8/2001 9:32:36 PM CANNON ROAD LIFT STATION.geo 3/8/2001 9:32:36 PM TEXT.geo ROADS PLUS.geo STACK.geo DESILTING BASIN.geo SOUND WALL.geo 3/8/2001 9:32:36 PM 3/8/2001 9:32:36 PM 3/8/2001 9:32:36 PM 3/8/2001 9:32:36 PM 3/8/2001 9:32:36 PM DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Receiver Levels - FIGURE 4-1: NO FAN ENCLOSURES Rocoivof index 1 2 3 4 Flow 1 2 1 2 1 2 ! Nam* LOT 16 SPS LOT 17 SPS LOT 19 SPS Usage WR WR WR WR WR WR SPS @ 51 (TEST POINT) | Gl 5 | 1 ISPS EAST 25M (HILL) 6 1 WA SPS NORTH 25M Gl 7 1 SPS NORTH 50M 8 1 Gl *'., ' W- 192.00 192.00 142.00 142.00 174.00 174.00 y • JB- 135.00 135.00 105.00 105.00 92.00 92.00 73.54 | 48.02 97.00 t Z m 9.80 12.60 9.20 12.00 9.40 12.20 10.14 45.00 | 16.74 Tttfrtrfn M*lMktifOigni w 9.80 9.80 9.20 9.20 9.40 9.40 LrD.max : dB(Al * 59 59 59 59 59 59 9.14 | 69 15.24 , Lit* d&M , 21.3 21.6 24.0 25.7 19.3 19.7 78.6 '• LrD.dtff dB(Al -37.7 -37.4 •35.0 -33.3 -39.7 -39.3 9.6 ' . ' 59 | 38.4 | -20.6 | 72.00 | 71.00 | 10.50 | 9.13 | 69 | 42.6 72.00 96.00 9.12 SPS NW OF FAN WALL | Gl | 69.65 | 50.77 9 1 SPS SOUTH 25M (HILL) 10 Gl 7.62 -26.4 | 69 | 36.4 | -32.6 | 10.64 | 9.13 | 69 72.00 | 23.00 16.74 15.24 1 ISPS WEST 25M | Gl | 47.00 | 45.00 11 I 1 SPS WEST SOU Gl 22.00 | 45.00 10.50 69 9.13 | 69 9.12 | 7.62 | 69 60.2 45.4 43.7 -8.8 -23.6 | -25.3 37.6 | -31.4 | ,k. DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION NOISE ASSESSMENT Octave Spectra of the Sources in dB(A) - FIGURE 4-1: NO FAN ENCLOSURES Name Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK S retype Point Point Point Point X 73.00 70.50 72.00 72.00 Y 45.50 48.00 49.30 45.00 2 | , 10.14 10.14 10.14 17.00 Lw 65.0 88.1 88.1 70.0 Ko 3.0 3.0 3.0 3.0 63HZ 59.0 80.0 80.0 12SHz 58.8 80.9 80.9 2SOH± 58.0 82.1 82.1 SOOHz 57.0 80.5 80.5 70.0 1000HZ 55.0 80.0 80.0 2000Hz 49.0 75.0 75.0 4000Hz 47.0 69.0 69.0 SOOOHz 44.0 65.0 65.0 DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Receiver Spectra in dB(A) - FIGURE 4-1: NO FAN ENCLOSURES Time Slice 63Hz 125Hz 250Hz SOOHz 1000Hz ZOOOHz 4000Hz SOOOHz I Floor 1 Name LOT16SPS X 192.00 m Y 135.00 m Z 9.80 m Terrain 9.80 m LrD.max 59 dB(A) LrD 21.3 Day Night Special 17.8 17.8 17.8 14.7 14.7 14.7 12.2 12.2 12.2 14.2 14.2 14.2 5.0 5.0 5.0 -1.7 -1.7 -1.7 -13.3 -13.3 -13.3 -25.0 -25.0 -25.0 Floor 2 Name LOT16SPS X 192.00 m Y 135.00 m Z 12.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 21.6 Day Night Special 17.9 17.9 17.9 14.8 14.8 14.8 12.3 12.3 12.3 14.7 14.7 14.7 5.0 5.0 5.0 -1.7 -1.7 -1.7 Floor 1 Name LOT17SPS X 142.00 m Y 105.00 Day Night Special 20.3 20.3 20.3 17.8 17.8 17.8 15.8 15.8 15.8 15.0 15.0 15.0 9.9 9.9 9.9 3.9 3.9 3.9 -13.3 -13.3 -13.3 -25.0 -25.0 -25.0 m Z9.20 -5.5 -5.5 -5.5 -14.2 -14.2 -14.2 m Terrain 9.20 m LrD.max 59 dB(A) LrD 24.0 Floor 2 Name LOT17SPS X 142.00 m Y 105.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 25.7 Day Night Special 22.1 22.1 22.1 18.9 18.9 18.9 16.5 16.5 16.5 18.6 18.6 18.6 9.9 9.9 9.9 3.9 3.9 3.9 -5.5 -5.5 -5.5 •14.2 -14.2 -14.2 Floor 1 Name LOT19SPS X 174.00 m Y 92.00 m Z 9.40 m Terrain 9.40 m LrD.max 59 dB(A) LrD 19.3 Day Night Special 15.7 15.7 15.7 12.8 12.8 12.8 11.1 11.1 11.1 9.4 9.4 9.4 7.8 7.8 7.8 1.6 1.6 1.6 -8.6 -8.6 -8.6 -18.4 -18.4 -18.4 Floor 2 Name LOT19SPS X 174.00 m Y 92.00 m Z 12.20 m Terrain 9.40 m LrD.max 59 dB(A) LrD 19.7 Day Night Special 16.2 16.2 16.2 13.3 13.3 13.3 11.4 11.4 11.4 9.4 9.4 9.4 7.8 7.8 7.8 1.6 1.6 1.6 -8.6 -8.6 -8.6 -18.4 -18.4 •18.4 Floor 1 Name SPS @ 5' (TEST POINT) X 73.54 m Y 48.02 m Z 10.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 78.6 Day Night Special 70.0 70.0 70.0 71.4 71.4 71.4 72.8 72.8 72.8 71.2 71.2 71.2 70.7 70.7 70.7 65.7 65.7 65.7 59.6 59.6 59.6 55.3 55.3 55.3 Floor 1 Name SPS EAST 25M (HILL) X97.00 m Y 45.00 m Z 16.74 m Terrain 15.24 m LrD.max 59 dB(A) LrD 38.4 Day Night Special 35.3 35.3 35.3 32.8 32.8 32.8 29.7 29.7 29.7 27.6 27.6 27.6 21.2 21.2 21.2 15.9 15.9 15.9 8.9 8.9 8.9 3.5 3.5 3.5 Floor 1 Name SPS NORTH 2SM X 72.00 m Y 71.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 42.6 DHK Carlsbad Municipal Water District PAGE! CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Receiver Spectra in dB(A) - FIGURE 4-1: NO FAN ENCLOSURES Time Slice Day Night Special 63Hz 37.1 37.1 37.1 125Hz 37.4 37.4 37.4 250Hz 36.0 36.0 36.0 SOOHz 33.7 33.7 33.7 1000HZ 29.1 29.1 29.1 2000Hz 23.8 23.8 23.8 4000HZ 16.9 16.9 16.9 SOOOHz 11.7 11.7 11.7 Floor 1 Name SPS NORTH 50M X 72.00 m Y 96.00 m Z9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 36.4 Day Night Special 30.6 30.6 30.6 31.0 31.0 31.0 29.6 29.6 29.6 29.2 29.2 29.2 22.4 22.4 22.4 16.8 16.8 16.8 9.0 9.0 9.0 2.5 2.5 2.5 Floor 1 Name SPS NW OF FAN WALL X69.6S m Y 50.77 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 60.2 Day Night Special 56.1 56.1 56.1 Floor 1 Name SPS SOUTH 25M (HILL Day Night Special 39.7 39.7 39.7 54.6 54.6 54.6 53.1 53.1 53.1 49.1 49.1 49.1 47.2 47.2 47.2 42.1 42.1 42.1 36.0 36.0 36.0 31.9 31.9 31.9 X 72.00 m Y 23.00 m Z 16.74 m Terrain 15.24 m LrD.max 69 dB(A) LrD 45.4 40.0 40.0 40.0 39.7 39.7 39.7 35.9 35.9 35.9 31.9 31.9 31.9 24.7 24.7 24.7 17.6 17.6 17.6 12.0 12.0 12.0 Floor 1 Name SPS WEST 25M X47.00 m Y 45.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 43.7 Day Night Special 39.1 39.1 39.1 37.8 37.8 37.8 36.5 36.5 36.5 36.0 36.0 36.0 28.6 28.6 28.6 22.9 22.9 22.9 16.0 16.0 16.0 10.6 10.6 10.6 Floor 1 Name SPS WEST SOW X22.00 m Y 45.00 m Z9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 37.6 Day Night Special 33.0 33.0 33.0 31.8 31.8 31.8 30.4 30.4 30.4 29.6 29.6 29.6 22.3 22.3 22.3 16.4 16.4 16.4 8.5 8.5 8.5 1.9 1.9 1.9 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Contribution Level - FIGURE 4-1: NO FAN ENCLOSURES Name Source Type LrD dB(A) Attenuation dB(A) Floor 1 Name LOT16SPS X 192.00 m Y 135.00 m Z 9.80 m Terrain 9.80 m UrD.max 59 dB(A) LrD 21.3 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Floor 2 Name LOT 16 SPS Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Floor 1 Name LOT 17 SPS Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Floor 2 Name LOT 17 SPS Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Floor 1 Name LOT 19 SPS Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Floor 2 Name LOT 19 SPS Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point -3.3 18.2 16.9 13.2 X 192.00 -3.1 18.3 17.0 13.8 X 142.00 -0.8 21.1 20.0 12.6 X 142.00 0.7 22.5 21.3 17.6 0.0 0.0 0.0 0.0 m Y 135.00 m Z 12.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 21.6 0.0 0.0 0.0 0.0 m Y 105.00 0.0 0.0 0.0 0.0 m Y 105.00 0.0 0.0 0.0 0.0 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 24.0 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 25.7 X 174.00 m Y 92.00 m Z 9.40 m Terrain 9.40 m LrD.max 59 dB(A) LrD 19.3 Point Point Point Point Point Point Point Point -6.2 16.0 16.5 -3.3 0.0 0.0 0.0 0.0 X 174.00 m Y 92.00 -5.8 16.3 16.9 -2.6 0.0 0.0 0.0 0.0 m Z 12.20 m Terrain 9.40 m LrD.max 59 dB(A) LrD 19.7 Floor 1 Name SPS @ 5' (TEST POINT) X 73.54 m Y 48.02 m Z 10.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 78.6 Booster Fan 6SdB(A) Scrubber Fan 01 , No Enclosure Point Point 50.4 74.2 0.0 0.0 DHK Carlsbad Municipal Water District PAGE 1 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Contribution Level - FIGURE 4-1: NO FAN ENCLOSURES Name Scrubber Fan 02, No Enclosure STACK Source Type Point Point LrD dB(A) 76.6 47.2 Attenuation dB(A) 0.0 0.0 Floor 1 Name SPS EAST 25M (HILL) X97.00 m Y 45.00 m Z 16.74 m Terrain 15.24 m LrD.max 59 dB(A) LrD 38.4 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 15.0 36.0 34.3 24.9 0.0 0.0 0.0 0.0 Floor 1 Name SPS NORTH 25M X 72.00 m Y 71.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 42.6 Booster Fan 65dB(A) Scrubber Fan 01, No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 17.7 41.0 36.7 29.2 0.0 0.0 0.0 0.0 Floor 1 Name SPS NORTH 50M X 72.00 m Y 96.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 36.4 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 12.0 34.5 30.2 26.9 0.0 0.0 0.0 0.0 Floor 1 Name SPS NW OF FAN WALL X69.65 m Y 50.77 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 60.2 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 30.9 57.0 57.4 38.9 0.0 0.0 0.0 0.0 Floor 1 Name SPS SOUTH 25M (HILL) X 72.00 m Y 23.00 m Z 16.74 m Terrain 15.24 m LrD.max 69 dB(A) LrD 45.4 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 19.6 41.9 42.7 25.7 0.0 0.0 0.0 0.0 Floor 1 Name SPS WEST 25M X47.00 m Y 45.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 43.7 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 20.9 38.8 41.3 33.7 0.0 0.0 0.0 0.0 Floor 1 Name SPS WEST 50M X22.00 m Y 45.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 37.6 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Contribution Level - FIGURE 4-1: NO FAN ENCLOSURES Name Booster Fan 6SdB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Source Type Point Point Point Point LrD dB(A) 13.8 32.6 35.3 27.2 Attenuation dB(A) 0.0 0.0 0.0 0.0 DHK Carlsbad Municipal Water District PAGES CANNON ROAD LIFT STATION NOISE ASSESSMENT Mean Propagation - FIGURE 4-1: NO FAN ENCLOSURES SOURCE Source Type Lw dB(A) Ko dB Distance from Source to Receiver m Mean Spreading Loss (Adiv) dB Mean Ground Effect (Agr) dB Mean Barrier Loss (Abar) dB Mean Air Absorption (Aatm) dB Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) LrD dB(A) Floor 1 Name UOT16SPS X 192.00 m Y 135.00 m 29.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 21.3 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 148.77 149.30 147.33 150.04 54.5 54.5 54.4 54.5 4.8 4.8 4.8 4.2 11.9 13.4 14.8 0.5 0.1 0.2 0.2 0.6 -3.3 18.2 16.9 13.2 -3.3 18.2 16.9 13.2 Floor 2 Name UOT16SPS X 192.00 m Y 135.00 m Z 12.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 21.6 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 148.79 149.32 147.35 149.93 54.5 54.5 54.4 54.5 4.7 4.7 4.7 3.8 11.8 13.4 14.8 0.2 0.1 0.2 0.2 0.6 -3.1 18.3 17.0 13.8 -3.1 18.3 17.0 13.8 Floor 1 Name LOT17SPS X 142.00 m Y 105.00 m 29.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 24.0 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 91.03 91.36 89.38 92.44 50.2 50.2 50.0 50.3 4.6 4.6 4.6 3.1 14.0 15.1 16.3 6.7 0.1 0.1 0.2 0.4 -0.8 21.1 20.0 12.6 -0.8 21.1 20.0 12.6 Floor 2 Name LOT17SPS X 142.00 m Y 105.00 m 212.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 25.7 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 91.05 91.38 89.39 92.25 50.2 50.2 50.0 50.3 4.0 4.0 3.9 2.5 13.1 14.3 15.7 2.3 0.1 0.1 0.1 0.4 0.7 22.5 21.3 17.6 0.7 22.5 21.3 17.6 Floor 1 Name LOT19SPS X 174.00 m Y 92.00 m Z 9.40 m Terrain 9.40 m LrD.max 59 dB(A) LrD 19.3 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 111.09 112.36 110.48 112.46 51.9 52.0 51.9 52.0 4.8 4.8 4.8 4.8 17.3 18.0 17.6 19.1 0.2 0.3 0.3 0.4 -6.2 16.0 16.5 -3.3 -6.2 16.0 16.5 -3.3 Floor 2 Name LOT19SPS X 174.00 m Y 92.00 m 212.20 m Terrain 9.40 m LrD.max 59 dB(A) LrD 19.7 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 111.11 112.38 110.50 112.31 51.9 52.0 51.9 52.0 4.8 4.8 4.8 4.8 16.9 17.7 17.2 18.4 0.2 0.3 0.2 0.4 -5.8 16.3 16.9 -2.6 -5.8 16.3 16.9 -2.6 Floor 1 Name SPS @ 5' (TEST POINT) X 73.54 m Y 48.02 m 210.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 78.6 Booster Fan 65dB(A) Scrubber Fan 01, No Enclosure Point Point 65.0 88.1 3.0 3.0 2.57 3.04 19.2 20.6 0.0 0.0 0.0 0.0 45.4 71.9 50.4 74.2 50.4 74.2 DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION NOISE ASSESSMENT Mean Propagation - FIGURE 4-1: NO FAN ENCLOSURES SOURCE Scrubber Fan 02, No Enclosure STACK Source Type Point Point Lw dB(A) 88.1 70.0 Ko dB 3.0 3.0 Distance from Source to Receiver m 2.00 7.64 Mean Spreading Loss (Adiv) dB 17.0 28.7 Mean Ground Effect (Agr) dB 0.0 0.0 Mean Barrier Loss (Abar) dB Mean Air Absorption (Aatm) dB 0.0 0.0 Reflection Part dB(A) 73.2 44.0 Unassessed Sound Pressure at Receiver (Ls) dB(A) 76.6 47.2 LrD dB(A) 76.6 47.2 Floor 1 Name SPS EAST 25M (HILL) X 97.00 m Y 45.00 m Z 16.74 m Terrain 15.24 m LrD.max 59 dB(A) LrD 38.4 Booster Fan 65dB(A) Scrubber Fan 01, No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 24.87 27.45 26.19 24.98 38.9 39.8 39.4 39.0 4.8 4.8 4.8 0.0 9.3 10.5 12.6 9.1 0.0 0.0 0.0 0.1 15.0 36.0 34.3 24.9 15.0 36.0 34.3 24.9 Floor 1 Name SPS NORTH 25M X 72.00 m Y 71.00 m 210.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 42.6 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 25.50 23.03 21.68 26.78 39.1 38.2 37.7 39.6 2.1 1.7 1.4 0.0 12.3 11.8 15.1 4.2 0.0 0.0 0.1 0.1 14.9 36.0 17.7 41.0 36.7 29.2 17.7 41.0 36.7 29.2 Floor 1 Name SPS NORTH 50M X 72.00 m Y 96.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 36.4 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 50.47 47.99 46.67 51.56 45.1 44.6 44.4 45.2 3.7 3.6 3.5 0.7 10.6 9.9 12.9 0.0 0.1 0.1 0.2 9.2 29.7 12.0 34.5 30.2 26.9 12.0 34.5 30.2 26.9 Floor 1 Name SPS NW OF FAN WALL X69.65 m Y 50.77 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 60.2 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 6.26 2.94 2.81 8.89 26.9 20.4 20.0 30.0 0.0 0.0 0.0 0.0 12.9 15.2 15.3 6.0 0.0 0.0 0.0 0.0 27.6 51.8 52.2 34.4 30.9 57.0 57.4 38.9 30.9 57.0 57.4 38.9 Floor 1 Name SPS SOUTH 25M (HILL) X 72.00 m Y 23.00 m Z 16.74 m Terrain 15.24 m LrD.max 69 dB(A) LrD 45.4 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 23.45 25.88 27.09 21.98 38.4 39.3 39.7 37.8 4.8 4.8 4.8 0.0 7.6 10.8 7.6 9.3 0.0 0.0 0.0 0.1 15.8 40.5 40.3 19.6 41.9 42.7 25.7 19.6 41.9 42.7 25.7 Floor 1 Name SPS WEST 25M X47.00 m Y 45.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 43.7 Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Point Point Point Point 65.0 88.1 88.1 70.0 3.0 3.0 3.0 3.0 25.98 23.67 25.35 25.81 39.3 38.5 39.1 39.2 2.2 1.8 2.1 0.0 10.5 11.9 10.9 0.0 0.0 0.0 0.1 19.1 37.6 20.9 38.8 41.3 33.7 20.9 38.8 41.3 33.7 Floor 1 Name SPS WEST SOW X22.00 m Y 45.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 37.6 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION NOISE ASSESSMENT Mean Propagation - FIGURE 4-1: NO FAN ENCLOSURES SOURCE Booster Fan 65dB(A) Scrubber Fan 01 , No Enclosure Scrubber Fan 02, No Enclosure STACK Source Type Point Point Point Point Lw dB(A) 65.0 88.1 88.1 70.0 Ko dB 3.0 3.0 3.0 3.0 Distance from Source to Receiver m 50.97 48.56 50.15 50.57 Mean Spreading Loss (Adiv) dB 45.1 44.7 45.0 45.1 Mean Ground Effect (Agr) dB 3.7 3.6 3.7 0.6 Mean Barrier Loss (Abar) dB 9.0 10.1 9.6 Mean Air Absorption (Aatm) dB 0.1 0.1 0.1 0.2 Reflection Part dB(A) 11.3 31.7 Unassessed Sound Pressure at Receiver (Ls) dB(A) 13.8 32.6 35.3 27.2 LrD dB(A) 13.8 32.6 35.3 27.2 DHK Carlsbad Municipal Water District PAGE 3 CANNON ROAD LIFT STATION Run Information - FIGURE 4-2, NO FAN ENCLOSURES (1000M) CANNON ROAD LIFT STATIOt\ Carlsbad Municipal Water District Project description Project title: Engineer: DHK Customer: Description: Conceptual Design Large Grid, 1000 meters Run description Calculation: Single Point Sound Title: FIGURE 4-2, NO FAN ENCLOSURES (1000M) Run file: SITUATION 1 FIGURE 4-2 SPS.run Result number: 1 Calculation start: 3/9/2001 11:05:22 AM Calculation end: 3/9/2001 11.05:26 AM Kernel version: 5/22/2000 Run parameters Angle Increment: 1.00 ° Reflection Depth: 0 Number of reflections: 10 Weighting: dB(A) Standards: Industry: VDI2714/2720 Air absorption: ISO 3891 Limitation of screening loss: Environment: VDI-Parameters for diffraction Dissection parameters: single/multiple Air pressure rel. Humidity Temperature i C1=3 C2=20 Distance to diameter factor Minimal Distance [m] Maximal Difference GND+Diffraction 20 dB 125 dB 1013.25 mbar 30% S°C 2 1 m 1 dB DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Run Information - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Assessment: Geometry data FIGURE 4-2 .sfl contains: CONTOURS geo FAN WALL.geo FAN .geo HOUSES.geo LARGE AREA.geo PUMP STATION.gec SPS INDUSTRIAL.geo STACK.geo DESILT BASIN.geo ROADS.geo TEXT .geo SOUND WALL.geo LOTS.geo Maximal No. of iterations Leq 06-22|22-06|00-24 3/8/2001 4:36:58 PM 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 4:40:48 PM 4:40:48 PM 4:38:58 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION Assessed Receiver Levels - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Receiver Index 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Floor 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 1 1 1 1 1 1 1 Name House 5 (SE) House 6 House 7 LOT 14SPS LOT16SPS LOT17SPS LOT19SPS LOT 22 SPS LOT 25 SPS SPS 01 SPS 02 SPS 03 SPS 04 SPS 08 SPS 09 SPS 10 SPS 11 Usage WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR X HI 722.05 722.05 685.12 685.12 657.30 657.30 622.00 622.00 592.00 592.00 542.00 542.00 572.00 572.00 617.00 617.00 647.00 647.00 23.69 167.67 215.32 296.22 641 .03 626.97 521.90 440.00 Y m 289.54 289.54 266.87 266.87 228.41 228.41 540.00 540.00 535.00 535.00 505.00 505.00 494.00 494.00 485.00 485.00 495.00 495.00 568.24 763.67 881.04 796.73 205.13 159.13 95.21 92.00 Z m 71.90 74.70 71.90 74.70 63.76 66.56 10.10 12.90 9.70 12.50 9.20 12.00 9.20 12.00 9.80 12.60 10.20 13.00 16.50 26.50 31.50 16.50 62.50 62.50 37.30 30.20 Terrain Height R1 69.50 69.50 69.50 69.50 61.36 61.36 10.10 10.10 9.70 9.70 9.20 9.20 9.20 9.20 9.80 9.80 10.20 10.20 15.00 25.00 30.00 15.00 61.00 61.00 35.80 28.70 LrD.max dBfAl 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 LrO dBfA) 13.0 13.3 14.7 15.1 13.8 14.1 17.0 17.3 21.4 21.6 23.9 25.6 19.7 20.2 15.9 16.2 14.7 14.9 18.3 17.0 17.6 18.0 12.4 14.0 12.7 14.0 LrD,d«f dB(Al -46.0 -45.7 -44.3 -43.9 -45.2 -44.9 -42.0 -41.7 -37.6 -37.4 -35.1 -33.4 -39.3 -38.8 -43.1 -42.8 -44.3 -44.1 -40.7 -42.0 -41.4 -41.0 -46.6 -45.0 -46.3 -45.0 18 | 1 |SPS 12 WR 365.07 107.15 23.30 21 .80 59 15.3 -43.7 | DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Assessed Receiver Levels - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Receiver Index 19 20 21 22 23 24 25 26 27 28 ' Floor 1 1 1 1 1 1 1 1 1 1 Name SPS 13 SPS14 SPS @ 5' (TEST POINT) SPS EAST 2SM (HILL) SPS NORTH 25M SPS NORTH 50M SPS NW OF FAN WALL SPS SOUTH 25M (HILL) SPS WEST 25M SPS WEST SOW Usage WR WR Gl Ol Gl Gl Gl Gl Gl Gl X m-" 461.00 436.00 474.02 497.50 472.50 472.50 470.00 472.50 447.50 422.50 ' Y m .' 240.00 253.00 448.00 448.00 473.00 500.00 450.50 423.00 448.00 448.00 •z • ffi , 16.75 15.20 10.14 28.93 10.50 9.12 10.64 25.88 10.50 9.12 Terrain Height m 15.25 13.70 9.14 27.43 9.13 7.62 9.13 24.38 9.13 7.62 LrO.max dB(A) 59 59 69 69 69 69 69 69 69 69 ...w*-. - (HMM 16.7 17.3 77.7 43.7 41.8 35.5 61.1 55.9 43.6 36.1 LrO,dtff " dB(A) -42.3 -41.7 8.7 -25.3 -27.2 -33.5 -7.9 -13.1 -25.4 -32.9 ' ! ' DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION Octave Spectra of the Sources in dB(A) - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Name Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK SltType Point Point Point Point X 472.00 473.00 470.50 472.00 Y 449.30 445.50 448.00 445.00 - z • 10.14 10.14 10.14 17.00 tw 88.1 65.0 88.1 70.0 Ko 3.0 3.0 3.0 3.0 63Hz 80.0 59.0 80.0 12SH* 80.9 58.8 80.9 250H2 82.1 58.0 82.1 SOOHz 80.5 57.0 80.5 70.0 1000Hz 80.0 55.0 80.0 2000HZ 75.0 49.0 75.0 4000HZ 69.0 47.0 69.0 SOOOHz 65.0 44.0 65.0 ' J DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Assessed Receiver Spectra In dB(A) - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Time Slice 63Hz 125Hz 250Hz SOOHz 1000HZ 2000Hz 4000Hz SOOOHz Floor 1 Name House 5 (SE) X 722.05 m Y 289.54 m Z 71.90 m Terrain 69.50 m LrD.max 59 dB(A) LrD 13.0 Day Night Special 8.7 8.7 8.7 7.7 7.7 7.7 5.7 5.7 5.7 Floor 2 Name House 5 (SE) Day Night Special Floor 1 Name House 6 Day Night Special Floor 2 Name House 6 Day Night Special Floor 1 Name House 7 Day Night Special Floor 2 Name House 7 Day Night Special 9.0 9.0 9.0 8.0 8.0 8.0 6.1 6.1 6.1 2.3 2.3 2.3 -0.5 -0.5 -0.5 -8.2 -8.2 -8.2 X 722.05 m Y 289.54 2.3 2.3 2.3 -0.5 -0.5 -0.5 -8.2 -8.2 -8.2 X 685.12 m Y 266.87 11.3 11.3 11.3 9.1 9.1 9.1 7.1 7.1 7.1 2.9 2.9 2.9 0.2 0.2 0.2 -8.0 -8.0 -8.0 X685.12 m Y 266.87 11.6 11.6 11.6 9.5 9.5 9.5 7.5 7.5 7.5 2.9 2.9 2.9 0.1 0.1 0.1 -8.0 -8.0 -8.0 X657.30 m Y 228.41 10.4 10.4 10.4 8.1 8.1 8.1 6.1 6.1 6.1 1.7 1.7 1.7 0.0 0.0 0.0 -8.5 -8.5 -8.5 X 657.30 m Y 228.41 10.7 10.7 10.7 8.4 8.4 8.4 6.4 6.4 6.4 Floor 1 Name LOT14SPS Day Night Special 13.8 13.8 13.8 Floor 2 Name LOT14SPS Day Night Special 14.1 14.1 14.1 11.0 11.0 11.0 8.8 8.8 8.8 1.7 1.7 1.7 0.0 0.0 0.0 -8.5 -8.5 -8.5 X 622.00 m Y 540.00 5.7 5.7 5.7 3.2 3.2 3.2 -3.8 -3.8 -3.8 -26.0 -26.0 -26.0 m Z -26.1 -26.1 -26.1 m Z -24.8 -24.8 -24.8 m Z -24.9 -24.9 -24.9 74.70 71.90 74.70 m Z 63.76 -26.1 -26.1 -26.1 m Z 66.56 -26.1 -26.1 -26.1 m Z -16.4 -16.4 -16.4 10.10 -29.6 -29.6 -29.6 m Terrain 69.50 m LrD.max 59 dB(A) LrD 13.3 m Terrain 69.50 m LrD.max 59 dB(A) LrD 14.7 m Terrain 69.50 m LrD.max 59 dB(A) LrD 15.1 m Terrain 61.36 m LrD.max 59 dB(A) LrD 13.8 m Terrain 61.36 m LrD.max 59 dB(A) LrD 14.1 m Terrain 10.10 m LrD.max 59 dB(A) LrD 17.0 X622.00 m Y 540.00 m Z 12.90 m Terrain 10.10 m LrD.max 59 dB(A) LrD 17.3 11.3 11.3 11.3 9.1 9.1 9.1 5.8 5.8 5.8 3.2 3.2 3.2 -3.8 -3.8 -3.8 -16.4 -16.4 -16.4 -29.6 -29.6 -29.6 Floor 1 Name LOT16SPS X592.00 m Y 535.00 m Z 9.70 m Terrain 9.70 m LrD.max 59 dB(A) LrD 21.4 DHK Carlsbad Municipal Water District PAGE! CANNON ROAD LIFT STATION Assessed Receiver Spectra in dB(A) - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Time Slice Day Night Special 63Hz 17.9 17.9 17.9 125Hz 14.7 14.7 14.7 250Hz 12.1 12.1 12.1 SOOHz 14.2 14.2 14.2 1000Hz 5.0 5.0 5.0 2000Hz -1.7 -1.7 -1.7 4000HZ -13.3 -13.3 -13.3 SOOOHz -25.0 -25.0 -25.0 Floor 2 Name LOT16SPS X592.00 m Y 535.00 m Z 12.50 m Terrain 9.70 m LrD.max 59 dB(A) LrD 21.6 Day Night Special 18.0 18.0 18.0 14.8 14.8 14.8 12.3 12.3 12.3 14.5 14.5 14.5 5.0 5.0 5.0 -1.7 -1.7 -1.7 -13.3 •13.3 •13.3 -25.0 -25.0 -25.0 Floor 1 Name LOT17SPS X 542.00 m Y 505.00 m Z 9.20 m Terrain 9.20 m UD.max 59 dB(A) LrD 23.9 Day Night Special 20.2 20.2 20.2 17.7 17.7 17.7 15.7 15.7 15.7 15.1 15.1 15.1 9.9 9.9 9.9 3.9 3.9 3.9 -5.5 -5.5 -5.5 -14.2 -14.2 -14.2 Floor 2 Name LOT 17 SPS X 542. 00 m Y 505.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 25.6 Day Night Special 22.1 22.1 22.1 18.9 18.9 18.9 16.4 16.4 16.4 18.6 18.6 18.6 9.9 9.9 9.9 3.9 3.9 3.9 -5.5 -5.5 -5.5 -14.2 -14.2 -14.2 Floor 1 Name LOT19SPS X 572.00 m Y 494.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 19.7 Day Night Special 16.1 16.1 16.1 13.4 13.4 13.4 11.4 11.4 11.4 9.5 9.5 9.5 7.9 7.9 7.9 1.7 1.7 1.7 -8.4 -8.4 -8.4 -18.2 -18.2 -18.2 Floor 2 Name LOT19SPS X 572.00 m Y 494.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 20.2 Day Night Special 16.7 16.7 16.7 14.0 14.0 14.0 11.9 11.9 11.9 9.6 9.6 9.6 7.9 7.9 7.9 1.7 1.7 1.7 -8.4 -8.4 -8.4 -18.2 -18.2 -18.2 Floor 1 Name LOT22SPS X617.00 m Y 485.00 m Z 9.80 m Terrain 9.80 m LrD.max 59 dB(A) LrD 15.9 Day Night Special 11.9 11.9 11.9 9.3 9.3 9.3 8.4 8.4 8.4 6.6 6.6 6.6 4.8 4.8 4.8 -1.8 -1.8 -1.8 -13.5 -13.5 -13.5 •25.3 -25.3 -25.3 Floor 2 Name LOT 22 SPS X617.00 m Y 485.00 m Z 12.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 16.2 Day Night Special 12.3 12.3 12.3 9.7 9.7 9.7 8.4 8.4 8.4 6.6 6.6 6.6 4.8 4.8 4.8 -1.8 -1.8 -1.8 •13.5 -13.5 •13.5 -25.3 -25.3 -25.3 Floor 1 Name LOT 25 SPS X 647.00 m Y 495.00 m Z 10.20 m Terrain 10.20 m LrD.max 59 dB(A) LrD 14.7 Day Night 11.0 11.0 8.4 8.4 6.7 6.7 4.8 4.8 2.8 2.8 -4.2 -4.2 -17.0 -17.0 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION Assessed Receiver Spectra in dB(A) - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Time Slice Special 63Hz 11.0 125Hz 8.4 250Hz 6.7 SOOHz 4.8 1000HZ 2.8 2000HZ -4.2 4000Hz -17.0 SOOOHz Floor 2 Name LOT25SPS X 647.00 m Y 495.00 m Z 13.00 m Terrain 10.20 m LrD.max 59 dB(A) LrD 14.9 Day Night Special 11.3 11.3 11.3 8.7 8.7 8.7 6.8 6.8 6.8 4.8 4.8 4.8 2.8 2.8 2.8 -4.2 -4.2 -4.2 -17.0 -17.0 •17.0 Floor 1 Name SPS01 X23.69 m Y 568.24 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) LrD 18.3 Day Night Special 12.6 12.6 12.6 13.8 13.8 13.8 12.1 12.1 12.1 9.0 9.0 9.0 -0.1 -0.1 -0.1 -11.1 -11.1 -11.1 Floor 1 Name SPS 02 X 167.67 m Y 763.67 m Z 26.50 m Terrain 25.00 m LrD.max 59 dB(A) LrD 17.0 Day Night Special 13.0 13.0 13.0 11.7 11.7 11.7 10.1 10.1 10.1 7.2 7.2 7.2 -1.9 -1.9 -1.9 -12.5 -12.5 -12.5 Floor 1 Name SPS 03 X215.32 m Y 881.04 m Z 31.50 m Terrain 30.00 m LrD.max 59 dB(A) LrD 17.6 Day Night Special 11.9 11.9 11.9 13.1 13.1 13.1 11.5 11.5 11.5 8.2 8.2 8.2 -1.2 -1.2 -1.2 -12.7 -12.7 -12.7 Floor 1 Name SPS 04 X296.22 m Y 796.73 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) LrD 18.0 Day Night Special 13.9 13.9 13.9 12.6 12.6 12.6 11.0 11.0 11.0 8.2 8.2 8.2 -0.5 -0.5 -0.5 -10.4 -10.4 -10.4 Floor 1 Name SPS 08 X641.03 m Y 205.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD 12.4 Day Night Special 8.6 8.6 8.6 6.4 6.4 6.4 5.7 5.7 5.7 1.2 1.2 1.2 -1.7 -1.7 -1.7 -10.1 -10.1 -10.1 -27.4 -27.4 -27.4 Floor 1 Name SPS 09 X626.97 m Y 159.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD 14.0 Day Night Special 10.0 10.0 10.0 8.9 8.9 8.9 6.9 6.9 6.9 1.7 1.7 1.7 -0.7 -0.7 -0.7 -9.4 -9.4 -9.4 -28.0 -28.0 •28.0 Floor 1 Name SPS 10 X 521 .90 m Y 95.21 m Z 37.30 m Terrain 35.80 m LrD.max 59 dB(A) LrD 12.7 Day Night Special 6.5 6.5 6.5 7.8 7.8 7.8 7.1 7.1 7.1 2.8 2.8 2.8 -0.5 -0.5 -0.5 -9.4 -9.4 -9.4 -28.9 -28.9 •28.9 DHK Carlsbad Municipal Water District PAGE 3 CANNON ROAD LIFT STATION Assessed Receiver Spectra in dB(A) - FIGURE 4-2, NO FAN ENCLOSURES (1000M) [Time Slice 63Hz 125Hz 250Hz SOOHz 1000Hz 2CXX)Hz 4000Hz SOOOHz I Floor 1 Name SPS 11 X 440.00 m Y 92.00 m Z 30.20 m Terrain 28.70 m LrD.max 59 dB(A) UD 14.0 Day Night Special 9.4 9.4 9.4 9.4 9.4 9.4 7.4 7.4 7.4 2.2 2.2 2.2 -1.9 -1.9 -1.9 -10.9 -10.9 -10.9 Floor 1 Name SPS 12 X36S.07 m Y 107.15 m Z 23.30 m Terrain 21.80 m LrD.max 59 dB(A) LrD 15.3 Day Night Special 11.9 11.9 11.9 9.9 9.9 9.9 7.9 7.9 7.9 2.7 2.7 2.7 -1.9 -1.9 -1.9 -10.8 -10.8 -10.8 Floor 1 Name SPS 13 X461.00 m Y 240.00 m Z 16.75 m Terrain 15.25 m LrD.max 59 dB(A) LrD 16.7 Day Night Special 11.8 11.8 11.8 10.3 10.3 10.3 9.9 9.9 9.9 7.8 7.8 7.8 5.7 5.7 5.7 -1.7 -1.7 -1.7 -15.6 -15.6 -15.6 Floor 1 Name SPS 14 X 436.00 m Y 253.00 m Z 15.20 m Terrain 13.70 m LrD,max 59 dB(A) LrD 17.3 Day Night Special 12.9 12.9 12.9 11.6 11.6 11.6 10.4 10.4 10.4 6.9 6.9 6.9 4.8 4.8 4.8 -2.4 -2.4 -2.4 -16.0 -16.0 -16.0 Floor 1 Name SPS @ 5' (TEST POINT) X474.02 m Y 448.00 m Z 10.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 77.7 Day Night Special 69.0 69.0 69.0 70.4 70.4 70.4 71.9 71.9 71.9 70.3 70.3 70.3 69.8 69.8 69.8 64.7 64.7 64.7 58.6 58.6 58.6 54.3 54.3 54.3 Floor 1 Name SPS EAST 25M (HILL) X 497.50 m Y 448.00 m Z 28.93 m Terrain 27.43 m LrD.max 69 dB(A) LrD 43.7 Day Night Special 38.0 38.0 38.0 37.8 37.8 37.8 37.4 37.4 37.4 36.4 36.4 36.4 30.8 30.8 30.8 23.0 23.0 23.0 13.8 13.8 13.8 6.4 6.4 6.4 Floor 1 Name SPS NORTH 25M X472.50 m Y 473.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 41.8 Day Night Special 36.3 36.3 36.3 36.6 36.6 36.6 35.2 35.2 35.2 32.9 32.9 32.9 28.3 28.3 28.3 23.0 23.0 23.0 16.0 16.0 16.0 10.7 10.7 10.7 Floor 1 Name SPS NORTH 50M X472.50 m Y 500.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 35.5 Day Night Special 29.9 29.9 29.9 30.4 30.4 30.4 29.0 29.0 29.0 26.8 26.8 26.8 21.7 21.7 21.7 16.0 16.0 16.0 8.1 8.1 8.1 1.4 1.4 1.4 Floor 1 Name SPS NW OF FAN WALL X470.00 m Y 450.50 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 61.1 DHK Carlsbad Municipal Water District PAGE 4 CANNON ROAD LIFT STATION Assessed Receiver Spectra in dB(A) - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Time Slice Day Night Special 63Hz 57.0 57.0 57.0 125Hz 55.5 55.5 55.5 250Hz 54.0 54.0 54.0 SOOHz 49.7 49.7 49.7 1000Hz 48.3 48.3 48.3 2000HZ 43.2 43.2 43.2 4000HZ 37.1 37.1 37.1 SOOOHz 33.0 33.0 33.0 Floor 1 Name SPS SOUTH 25M (HILL) X 472.50 m Y 423.00 m Z 25.88 m Terrain 24.38 m LrD.max 69 dB(A) LrD 55.9 Day Night Special 45.9 45.9 45.9 48.0 48.0 48.0 50.7 50.7 50.7 49.1 49.1 49.1 48.1 48.1 48.1 42.7 42.7 42.7 35.4 35.4 35.4 29.7 29.7 29.7 Floor 1 Name SPS WEST 25M X447.50 m Y 448.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 43.6 Day Night Special 39.2 39.2 39.2 38.0 38.0 38.0 36.6 36.6 36.6 34.4 34.4 34.4 28.7 28.7 28.7 23.2 23.2 23.2 16.3 16.3 16.3 11.0 11.0 11.0 Floor 1 Name SPS WEST 50M X422.50 m Y 448.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 36.1 Day Night Special 31.7 31.7 31.7 30.4 30.4 30.4 29.0 29.0 29.0 27.1 27.1 27.1 20.8 20.8 20.8 15.2 15.2 15.2 7.4 7.4 7.4 0.8 0.8 0.8 DHK Carlsbad Municipal Water District PAGES CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Name Source Type LrD dB(A) Attenuation dB(A) Floor 1 Name House 5 (SE) X722.05 m Y 289.54 m Z 71.90 m Terrain 69.50 m LrD.max 59 dB(A) LrD 13.0 Scrubber Pan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Floor 2 Name House 5 (SE) Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Floor 1 Name Houses Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Floor 2 Name House 6 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Floor 1 Name House 7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Floor 2 Name House 7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point 10.4 -14.6 9.5 -13.6 X 722.05 10.7 -14.3 9.7 -13.1 X 685.1 2 11.7 -13.4 11.7 -11.7 X685.12 12.0 -13.1 12.0 -11.1 X 657.30 9.3 -13.2 11.9 -11.6 X 657.30 9.5 -13.0 12.2 -11.1 0.0 0.0 0.0 0.0 m Y 289.54 0.0 0.0 0.0 0.0 m Y 266.87 0.0 0.0 0.0 0.0 m Y 266.87 0.0 0.0 0.0 0.0 m Y 228.41 0.0 0.0 0.0 0.0 m Y 228.41 0.0 0.0 0.0 0.0 m Z 74.70 m Terrain 69.50 m LrD.max 59 OB(A) LrD 13.3 m 271.90 m Terrain 69.50 m LrD.max 59 dB(A) LrD 14.7 m Z 74.70 m Terrain 69.50 m LrD.max 59 dB(A) LrD 15.1 m Z 63.76 m Terrain 61.36 m LrD.max 59 dB(A) LrD 13.8 m Z 66.56 m Terrain 61.36 m LrD.max 59 dB(A) LrD 14.1 Floor 1 Name LOT14SPS X622.00 m Y 540.00 m Z 10.10 m Terrain 10.10 m LrD.max 59 dB(A) LrD 17.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Point Point 13.5 -7.6 0.0 0.0 DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Name Scrubber Fan 02 No Enclosure STACK Floor 2 Name LOT14SPS Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Floor 1 Name LOT16SPS Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Floor 2 Name LOT 16 SPS Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Floor 1 Name LOT 17 SPS Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Floor 2 Name LOT 17 SPS Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Floor 1 Name LOT 19 SPS Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Source Type Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point Point LrD dB(A) 14.4 -2.5 X 622.00 13.7 -7.3 14.6 -1.6 X 592.00 16.9 -2.4 18.2 13.3 X 592.00 17.0 •2.2 18.4 13.7 X 542 .00 20.0 -0.8 21.0 12.7 X 542.00 21.3 1.0 22.4 17.6 X 572.00 16.4 -6.1 16.9 -2.7 Attenuation dB(A) 0.0 0.0 m Y 540.00 0.0 0.0 0.0 0.0 m Y 535.00 0.0 0.0 0.0 0.0 m Y 535.00 0.0 0.0 0.0 0.0 m Y 505.00 0.0 0.0 0.0 0.0 m Y 505.00 0.0 0.0 0.0 0.0 m Y 494.00 0.0 0.0 0.0 0.0 m Z 12.90 m Terrain 10.10 m LrD.max 59 dB(A) LrD 17.3 m Z9.70 m Terrain 9.70 m LrD, max 59 dB(A) LrD 21.4 m Z 12.50 m Terrain 9.70 m LrD.max 59 dB(A) LrD 21.6 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 23.9 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 25.6 m Z9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 19.7 Floor 2 Name LOT 19 SPS X572.00 m Y 494.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 20.2 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Name Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Source Type Point Point Point Point LrD dB(A) 16.8 -5.7 17.4 -2.0 Attenuation dB(A) 0.0 0.0 0.0 0.0 Floor 1 Name LOT22SPS X 61 7.00 m Y 485.00 m Z 9.80 m Terrain 9.80 m LrD.max 59 dB(A) LrD 15.9 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 12.8 -9.9 13.0 -7.1 0.0 0.0 0.0 0.0 Floor 2 Name LOT22SPS X 61 7.00 m Y 485.00 m Z 12.60 m Terrain 9.60 m LrD.max 59 dB(A) LrD 16.2 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 13.0 -9.6 13.2 -7.1 0.0 0.0 0.0 0.0 Floor 1 Name LOT25SPS X 647.00 m Y 495.00 m Z 10.20 m Terrain 10.20 m LrD.max 59 dB(A) LrD 14.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 11.5 -10.4 11.8 -8.9 0.0 0.0 0.0 0.0 Floor 2 Name LOT25SPS X 647 .00 m Y 495.00 m Z 13.00 m Terrain 10.20 m LrD.max 59 dB(A) LrD 14.9 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 11.6 -10.2 12.1 -8.6 0.0 0.0 0.0 0.0 Floor 1 Name SPS01 X23.69 m Y 568.24 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) LrD 18.3 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 15.1 -6.3 14.9 5.2 0.0 0.0 0.0 0.0 Floor 1 Name SPS02 X 167 .67 m Y 763.67 m Z 26.50 m Terrain 25.00 m LrD.max 59 dB(A) LrD 17.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure Point Point Point 13.9 -5.1 13.7 0.0 0.0 0.0 DHK Carlsbad Municipal Water District PAGES CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Name STACK Source Type Point LrD dB(A) 3.7 Attenuation dB(A) 0.0 Floor 1 Name SPS 03 X 215.32 m Y 681.04 m Z31.50 m Terrain 30.00 m LrD.max 59 dB(A) LrD 17.6 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 14.4 -4.5 14.2 4.5 0.0 0.0 0.0 0.0 Floor 1 Name SPS 04 X296.22 m Y 796.73 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) UrD 18.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 14.8 -4.2 14.6 4.6 0.0 0.0 0.0 0.0 Floor 1 Name SPS 08 X641.03 m Y 205.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD 12.4 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 9.6 -13.7 9.1 -11.4 0.0 0.0 0.0 0.0 Floor 1 Name SPS 09 X626.97 m Y 159.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD 14.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 10.5 -13.8 11.4 -11.4 0.0 0.0 0.0 0.0 Floor 1 Name SPS 10 X521.90 m Y 95.21 m Z 37.30 m Terrain 35.80 m LrD.max 59 dB(A) LrD 12.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 9.4 -15.7 9.9 -13.8 0.0 0.0 0.0 0.0 Floor 1 Name SPS 11 X 440.00 m Y 92.00 m Z 30.20 m Terrain 28.70 m LrD.max 59 dB(A) LrD 14.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 11.0 -13.8 11.0 -10.9 0.0 0.0 0.0 0.0 Floor 1 Name SPS 12 X36S.07 m Y 107.15 m Z 23.30 m Terrain 21.80 m LrD.max 59 dB(A) LrD 15.3 Scrubber Fan 01 No Enclosure Point 11.6 0.0 DHK Carlsbad Municipal Water District PAGE 4 CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-2, NO FAN ENCLOSURES (1000M) \Jame Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Source Type Point Point Point LrD dB(A) -12.7 12.8 •10.4 Attenuation dB(A) 0.0 0.0 0.0 Floor 1 Name SPS 13 X461.00 m Y 240.00 m Z 16.75 m Terrain 15.25 m LrD.max 59 dB(A) LrD 16.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 13.8 -10.6 13.4 -10.0 0.0 0.0 0.0 0.0 Floor 1 Name SPS 14 X436.00 m Y 253.00 m Z 15.20 m Terrain 13.70 m LrD.max 59 dB(A) LrD 17.3 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 15.2 -7.3 13.0 -8.7 0.0 0.0 0.0 0.0 Floor 1 Name SPS @ 5' (TEST POINT) X474.02 m Y 448.00 m Z 10.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 77.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 75.6 50.2 73.4 46.8 0.0 0.0 0.0 0.0 Floor 1 Name SPS EAST 25M (HILL) X 497.50 m Y 448.00 m Z 28.93 m Terrain 27.43 m LrD.max 69 dB(A) LrD 43.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 38.1 20.1 41.8 32.9 0.0 0.0 0.0 0.0 Floor 1 Name SPS NORTH 25M X472.50 m Y 473.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 41.8 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 35.9 17.1 40.2 28.5 0.0 0.0 0.0 0.0 Floor 1 Name SPS NORTH 50M X472.50 m Y 500.00 m Z9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 35.5 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 29.4 9.7 33.9 22.7 0.0 0.0 0.0 0.0 DHK Carlsbad Municipal Water District PAGES CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-2, NO FAN ENCLOSURES (1000M) Name Source Type LrD dB(A) Attenuation dB(A) Floor 1 Name SPS NW OF FAN WALL X 470.00 m Y 450.50 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 61.1 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 58.4 31.3 57.8 37.4 0.0 0.0 0.0 0.0 Floor 1 Name SPS SOUTH 25M (HILL) X 472.50 m Y 423.00 m Z 25.88 m Terrain 24.38 m LrD.max 69 dB(A) LrD 55.9 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 53.4 28.4 52.2 34.4 0.0 0.0 0.0 0.0 Floor 1 Name SPS WEST 25M X 447.50 m Y 448.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 43.6 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 41.3 18.4 39.2 30.5 0.0 0.0 0.0 0.0 Floor 1 Name SPS WEST SOW X 422.50 m Y 448.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 36.1 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Enclosure Scrubber Fan 02 No Enclosure STACK Point Point Point Point 32.8 12.6 32.8 23.7 0.0 0.0 0.0 0.0 DHK Carlsbad Municipal Water District PAGE 6 CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-2, NO FAN ENCLOSURES (1000M) SOURCE Source Type Lw dB(A) Ko dB Distance from Source to Receiver m Mean Spreading Loss (Adiv) dB Mean Ground Effect (Agr) dB Mean Barrier Loss (Abar) dB Mean Air Absorption (Aatm) dB Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) LrD dB(A) Floor 1 Name House 5 (SE) X 722.05 m Y 289.54 m Z71.90 m Terrain 69.50 m LrD.max 59 dB(A) LrD 13.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 302.81 300.00 303.37 299.24 60.6 60.5 60.6 60.5 4.8 4.8 4.8 4.8 17.3 16.9 17.3 20.1 0.6 0.4 0.6 1.1 7.0 -47.1 4.5 10.4 -14.6 9.5 -13.6 10.4 -14.6 9.5 -13.6 Floor 2 Name House 5 (SE) X 722.05 m Y 289.54 m Z 74.70 m Terrain 69.50 m LrD.max 59 dB(A) LrD 13.3 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 303.40 300.59 303.95 299.76 60.6 60.6 60.7 60.5 4.8 4.8 4.8 4.8 17.1 16.6 17.0 19.6 0.5 0.4 0.5 1.1 7.3 -47.1 4.7 10.7 -14.3 9.7 -13.1 10.7 -14.3 9.7 -13.1 Floor 1 Name House 6 X685.12 m Y 266.87 m Z 71.90 m Terrain 69.50 m LrD.max 59 dB(A) LrD 14.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 286.99 283.85 287.29 282.88 60.2 60.1 60.2 60.0 4.8 4.8 4.8 4.8 16.6 16.2 16.5 18.7 0.5 0.3 0.5 1.1 8.3 8.3 11.7 -13.4 11.7 -11.7 11.7 -13.4 11.7 -11.7 Floor 2 Name House 6 X 685.12 m Y 266.87 m Z 74.70 m Terrain 69.50 m LrD.max 59 dB(A) LrD 15.1 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 287.61 284.47 287.90 283.43 60.2 60.1 60.2 60.0 4.8 4.8 4.8 4.8 16.3 15.9 16.2 18.2 0.5 0.3 0.5 1.1 8.7 8.7 12.0 -13.1 12.0 -11.1 12.0 -13.1 12.0 -11.1 Floor 1 Name House 7 X 657.30 m Y 228.41 m Z 63.76 m Terrain 61.36 m LrD.max 59 dB(A) LrD 13.8 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 293.00 289.51 292.97 288.59 60.3 60.2 60.3 60.2 4.8 4.8 4.8 4.8 16.3 15.9 16.3 18.5 0.5 0.3 0.5 1.1 -10.3 -32.8 8.6 9.3 -13.2 11.9 -11.6 9.3 -13.2 11.9 -11.6 Floor 2 Name House 7 X657.30 m Y 228.41 m Z 66.56 m Terrain 61.36 m LrD.max 59 dB(A) LrD 14.1 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 293.52 290.04 293.50 289.05 60.4 60.2 60.4 60.2 4.8 4.8 4.8 4.8 16.0 15.7 16.0 18.0 0.4 0.3 0.4 1.1 -10.3 -32.8 8.9 9.5 -13.0 12.2 -11.1 9.5 -13.0 12.2 -11.1 Floor 1 Name LOT14SPS X622.00 m Y 540.00 m Z 10.10 m Terrain 10.10 m LrD.max 59 dB(A) LrD 17.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Point Point 88.1 65.0 3.0 3.0 175.13 176.28 55.9 55.9 4.8 4.8 16.6 14.7 0.3 0.2 13.5 -7.6 13.5 -7.6 DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-2, NO FAN ENCLOSURES (1000M) SOURCE Scrubber Fan 02 No Enclosure STACK Source Type Point Point Lw dB(A) 88.1 70.0 Ko dB 3.0 3.0 Distance from Source to Receiver m 177.09 177.53 Mean Spreading Loss (Adiv) dB 56.0 56.0 Mean Ground Effect (Agr) dB 4.8 4.8 Mean Barrier Loss (Abar) dB 15.7 14.0 Mean Air Absorption (Aatm) dB 0.3 0.7 Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) 14.4 -2.5 LrD dB(A) 14.4 -2.5 Floor 2 Name LOT14SPS X622.00 m Y 540.00 m Z 12.90 m Terrain 10.10 m LrD.max 59 dB(A) LrD 17.3 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 175.15 176.30 177.11 177.44 55.9 55.9 56.0 56.0 4.8 4.8 4.8 4.6 16.3 14.4 15.4 13.3 0.3 0.2 0.3 0.7 13.7 -7.3 14.6 -1.6 13.7 -7.3 14.6 -1.6 Floor 1 Name LOT16SPS X592.00 m Y 535.00 m Z 9.70 m Terrain 9.70 m LrD.max 59 dB(A) LrD 21.4 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 147.33 148.77 149.30 150.04 54.4 54.5 54.5 54.5 4.8 4.8 4.8 4.6 14.8 11.0 13.4 0.2 0.1 0.2 0.6 16.9 -2.4 18.2 13.3 16.9 -2.4 18.2 13.3 Floor 2 Name LOT16SPS X 592.00 m Y 535.00 m Z 12.50 m Terrain 9.70 m LrD.max 59 dB(A) LrD 21.6 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 147.34 148.78 149.32 149.93 54.4 54.5 54.5 54.5 4.8 4.8 4.8 4.2 14.7 10.9 13.3 0.2 0.1 0.2 0.6 17.0 -2.2 18.4 13.7 17.0 -2.2 18.4 13.7 Floor 1 Name LOT17SPS X 542 .00 m Y 505.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 23.9 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 89.38 91.03 91.36 92.44 50.0 50.2 50.2 50.3 4.6 4.6 4.6 4.8 16.3 14.0 15.1 4.8 0.2 0.1 0.1 0.4 20.0 -0.8 21.0 12.7 20.0 -0.8 21.0 12.7 Floor 2 Name LOT17SPS X 542.00 m Y 505.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 25.6 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 89.39 91.05 91.38 92.25 50.0 50.2 50.2 50.3 3.9 4.0 4.0 4.2 15.7 12.8 14.4 0.6 0.1 0.1 0.1 0.4 21.3 1.0 22.4 17.6 21.3 1.0 22.4 17.6 Floor 1 Name LCT19SPS X572.00 m Y 494.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 19.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 109.44 110.15 111.34 111.53 51.8 51.8 51.9 51.9 4.8 4.8 4.8 4.8 17.8 17.2 17.2 18.5 0.3 0.2 0.3 0.4 16.4 -5.1 16.9 -2.7 16.4 -6.1 16.9 -2.7 Floor 2 Name LOT 19 SPS X 572.00 m Y 494.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 20.2 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-2, NO FAN ENCLOSURES (1000M) SOURCE Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Source Type Point Point Point Point Lw dB(A) 88.1 65.0 88.1 70.0 Ko dB 3.0 3.0 3.0 3.0 Distance from Source to Receiver m 109.45 110.16 111.35 111.37 Mean Spreading Loss (Adiv) dB 51.8 51.8 51.9 51.9 Mean Ground Effect (Agr) dB 4.8 4.8 4.8 4.8 Mean Barrier Loss (Abar) dB 17.4 16.9 16.7 17.8 Mean Air Absorption (Aatm) dB 0.3 0.2 0.2 0.4 Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) 16.8 -5.7 17.4 -2.0 LrD dB(A) 16.8 -5.7 17.4 -2.0 Floor 1 Name LOT22SPS X 61 7.00 m Y 485.00 m Z 9.80 m Terrain 9.80 m LrD.max 59 dB(A) LrD 15.9 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 149.19 149.18 150.96 150.45 54.5 54.5 54.6 54.5 4.8 4.8 4.8 4.8 18.5 18.3 18.3 20.2 0.4 0.3 0.4 0.6 12.8 -9.9 13.0 -7.1 12.8 -9.9 13.0 -7.1 Floor 2 Name LOT22SPS X617.00 m Y 485.00 m Z 12.60 m Terrain 9.80 m UrD.max 59 dB(A) LrD 16.2 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 149.21 149.20 150.98 150.34 54.5 54.5 54.6 54.5 4.8 4.8 4.8 4.8 18.3 18.1 18.1 20.2 0.4 0.3 0.4 0.6 13.0 -9.6 13.2 -7.1 13.0 -9.6 13.2 -7.1 Floor 1 Name LOT25SPS X647.00 m Y 495.00 m Z 10.20 m Terrain 10.20 m LrD.max 59 dB(A) LrD 14.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 180.70 180.74 182.48 181.96 56.1 56.1 56.2 56.2 4.8 4.8 4.8 4.8 18.2 17.2 17.8 20.2 0.5 0.3 0.4 0.7 11.5 -10.4 11.8 -8.9 11.5 -10.4 11.8 -8.9 Floor 2 Name LOT25SPS X 647.00 m Y 495.00 m Z 13.00 m Terrain 10.20 m LrD.max 59 dB(A) LrD 14.9 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 180.73 180.76 182.51 181.88 56.1 56.1 56.2 56.2 4.8 4.8 4.8 4.8 18.1 16.9 17.6 19.9 0.4 0.3 0.4 0.7 11.6 -10.2 12.1 -8.6 11.6 -10.2 12.1 -8.6 Floor 1 Name SPS 01 X23.69 m Y 568.24 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) LrD 18.3 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 463.44 465.39 462.33 464.52 64.3 64.4 64.3 64.3 4.3 4.3 4.3 4.1 8.4 6.6 8.6 0.5 0.4 0.5 1.8 10.1 -11.8 9.9 1.6 15.1 -6.3 14.9 5.2 15.1 -6.3 14.9 5.2 Floor 1 Name SPS 02 X 167 .67 m Y 763.67 m Z 26.50 m Terrain 25.00 m LrD.max 59 dB(A) LrD 17.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure Point Point Point 88.1 65.0 88.1 3.0 3.0 3.0 437.45 440.88 437.35 63.8 63.9 63.8 4.0 4.0 4.0 8.9 4.8 9.1 0.5 0.4 0.5 13.9 -5.1 13.7 13.9 -5.1 13.7 DHK Carlsbad Municipal Water District PAGES CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-2, NO FAN ENCLOSURES (1000M) SOURCE STACK Floor 1 Source Type Point Lw dB(A) 70.0 Ko dB 3.0 Distance from Source to Receiver m 440.35 Mean Spreading Loss (Adiv) dB 63.9 Mean Ground Effect (Agr) dB 3.8 Mean Barrier Loss (Abar) dB Mean Air Absorption (Aatm) dB 1.7 Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) 3.7 LrD dB(A) 3.7 Name SPS 03 X215.32 m Y 881.04 m Z 31.50 m Terrain 30.00 m LrD.max 59 dB(A) LrD 17.6 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Floor 1 Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 502.28 506.05 502.63 505.73 65.0 65.1 65.0 65.1 4.1 4.1 4.1 3.9 8.5 4.3 8.7 0.6 0.5 0.6 1.9 9.4 -9.7 9.2 0.9 14.4 -4.5 14.2 4.5 14.4 -4.5 14.2 4.5 Name SPS 04 X296.22 m Y 796.73 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) LrD 18.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Floor 1 Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 389.06 392.90 389.55 392.85 62.8 62.9 62.8 62.9 4.3 4.3 4.3 4.0 8.7 4.7 8.9 0.5 0.4 0.5 1.5 -24.6 14.8 -4.2 14.6 4.6 14.8 -4.2 14.6 4.6 Name SPS 08 X641.03 m Y 205.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD 12.4 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Floor 1 Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 301.27 297.64 301.07 296.68 60.6 60.5 60.6 60.4 4.8 4.8 4.8 4.8 16.3 16.1 16.2 18.0 0.5 0.3 0.5 1.1 1.5 9.6 -13.7 9.1 -11.4 9.6 -13.7 9.1 -11.4 Name SPS 09 X626.97 m Y 159.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD 14.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Floor 1 Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 332.80 329.03 332.37 328.04 61.4 61.3 61.4 61.3 4.8 4.8 4.8 4.8 15.6 15.3 15.6 17.1 0.5 0.3 0.5 1.3 5.6 8.1 10.5 -13.8 11.4 -11.4 10.5 -13.8 11.4 -11.4 Name SPS 10 X521.90 m Y 95.21 m Z 37.30 m Terrain 35.80 m LrD.max 59 dB(A) LrD 12.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Floor 1 Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 358.29 354.41 357.22 353.59 62.1 62.0 62.1 62.0 4.8 4.8 4.8 4.8 16.3 16.5 17.0 18.6 0.5 0.4 0.6 1.4 5.1 7.2 9.4 -15.7 9.9 -13.8 9.4 -15.7 9.9 -13.8 Name SPS 11 X440.00 m Y 92.00 m Z 30.20 m Terrain 28.70 m LrD.max 59 dB(A) LrD 14.0 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Floor 1 Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 358.96 355.28 357.54 354.37 62.1 62.0 62.1 62.0 4.8 4.8 4.8 4.8 15.5 14.6 15.8 15.7 0.5 0.3 0.5 1.4 7.9 8.0 11.0 -13.8 11.0 -10.9 11.0 -13.8 11.0 -10.9 Name SPS 12 X365.07 m Y 107.15 m Z 23.30 m Terrain 21.80 m LrD.max 59 dB(A) LrD 15.3 Scrubber Fan 01 No Enclosure Point 88.1 3.0 358.39 62.1 4.8 15.1 0.5 8.6 11.6 DHK Carlsbad Municipal Water District I H.6 I PAGE 4 CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-2, NO FAN ENCLOSURES (1000M) SOURCE Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Source Type Point Point Point Lw dB(A) 65.0 88.1 70.0 Ko dB 3.0 3.0 3.0 Distance from Source to Receiver m 355.07 356.70 354.10 Mean Spreading Loss (Adiv) dB 62.0 62.0 62.0 Mean Ground Effect (Agr) dB 4.8 4.8 4.8 Mean Barrier Loss (Abar) dB 13.6 16.0 15.3 Mean Air Absorption (Aatm) dB 0.3 0.5 1.4 Reflection Part dB(A) 11.2 Unassessed Sound Pressure at Receiver (Ls) dB(A) -12.7 12.8 -10.4 LrD dB(A) -12.7 12.8 -10.4 Floor 1 Name SPS 13 X 461 .00 m Y 240.00 m Z 16.75 m Terrain 15.25 m LrD.max 59 dB(A) LrD 16.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 209.50 205.77 208.13 205.11 57.4 57.3 57.4 57.2 4.8 4.8 4.8 4.8 17.9 17.8 18.2 20.2 0.5 0.4 0.5 0.8 11.1 •15.8 10.6 13.8 -10.6 13.4 -10.0 13.8 -10.6 13.4 -10.0 Floor 1 Name SPS 14 X 436.00 m Y 253.00 m Z 15.20 m Terrain 13.70 m LrD.max 59 dB(A) LrD 17.3 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 199.46 195.91 197.91 195.18 57.0 56.8 56.9 56.8 4.8 4.8 4.8 4.8 16.9 15.8 17.4 19.3 0.4 0.2 0.4 0.7 12.3 -11.0 7.6 15.2 -7.3 13.0 -8.7 15.2 -7.3 13.0 -8.7 Floor 1 Name SPS @ 5' (TEST POINT) X 474.02 m Y 448.00 m Z 10.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 77.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure . STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 2.40 2.70 3.52 7.75 18.6 19.6 21.9 28.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 72.7 45.5 71.4 43.3 75.6 50.2 73.4 46.8 75.6 50.2 73.4 46.8 Floor 1 Name SPS EAST 25M (HILL) X 497.50 m Y 448.00 m Z 28.93 m Terrain 27.43 m LrD.max 69 dB(A) LrD 43.7 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 31.67 30.95 32.86 28.29 41.0 40.8 41.3 40.0 0.0 0.2 0.0 0.0 12.0 6.9 7.9 0.0 0.0 0.1 0.1 38.1 20.1 41.8 32.9 38.1 20.1 41.8 32.9 Floor 1 Name SPS NORTH 25M X472.50 m Y 473.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 41.8 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 23.69 27.48 25.06 28.72 38.5 39.8 39.0 40.2 1.8 2.4 2.1 3.5 14.8 12.1 11.4 0.8 0.1 0.0 0.0 0.1 14.5 35.1 35.9 17.1 40.2 28.5 35.9 17.1 40.2 28.5 Floor 1 Name SPS NORTH SOW X472.50 m Y 500.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 35.5 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 50.67 54.46 52.00 55.51 45.1 45.7 45.3 45.9 3.7 3.8 3.7 4.2 12.8 10.5 9.8 0.1 0.0 0.1 0.2 5.0 29.2 29.4 9.7 33.9 22.7 29.4 9.7 33.9 22.7 DHK Carlsbad Municipal Water District PAGE 5 CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-2, NO FAN ENCLOSURES (1000M) SOURCE Source Type Lw dB(A) Ko dB Distance from Source to Receiver m Mean Spreading Loss (Adiv) dB Mean Ground Effect (Agr) dB Mean Barrier Loss (Abar) dB Mean Air Absorption (Aatm) dB Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) LrD dB(A) Floor 1 Name SPS NW OF FAN WALL X 470.00 m Y 450.50 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 61.1 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 2.38 5.85 2.60 8.64 18.5 26.3 19.3 29.7 0.0 0.0 0.0 0.0 15.5 13.3 15.4 7.8 0.0 0.0 0.0 0.0 52.8 28.2 52.2 33.1 58.4 31.3 57.8 37.4 58.4 31.3 57.8 37.4 Floor 1 Name SPS SOUTH 25M (HILL) X 472.50 m Y 423.00 m Z 25.88 m Terrain 24.38 m LrD.max 69 dB(A) LrD 55.9 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 30.63 27.44 29.58 23.71 40.7 39.8 40.4 38.5 0.7 1.9 0.7 0.0 8.5 0.1 0.1 0.1 0.1 51.1 24.4 51.8 53.4 28.4 52.2 34.4 53.4 28.4 52.2 34.4 Floor 1 Name SPS WEST 25M X 447.50 m Y 448.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 43.6 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 24.51 25.60 22.98 25.50 38.8 39.2 38.2 39.1 2.0 2.1 1.7 3.2 11.3 10.3 11.9 0.0 0.0 0.0 0.1 37.5 14.1 41.3 18.4 39.2 30.5 41.3 18.4 39.2 30.5 Floor 1 Name SPS WEST 50M X422.50 m Y 448.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 36.1 Scrubber Fan 01 No Enclosure Booster Fan 65 dB (A) No Scrubber Fan 02 No Enclosure STACK Point Point Point Point 88.1 65.0 88.1 70.0 3.0 3.0 3.0 3.0 49.48 50.53 47.97 50.17 44.9 45.1 44.6 45.0 3.6 3.7 3.6 4.1 9.7 8.9 10.0 0.1 0.1 0.1 0.2 8.7 32.8 12.6 32.8 23.7 32.8 12.6 32.8 23.7 DHK Carlsbad Municipal Water District PAGE 6 CANNON ROAD LIFT STATION NOISE ASSESSMENT - FIGURE 4-3: ENCLOSURES ON FANS Project description Project title: Engineer: DHK Customer: Description: Small Grid 200 meters x 200 meters Run description Calculation: Single Point Sound Title: FIGURE 4-3: ENCLOSURES ON FANS Run file: SITUATION 4, Figure 4-3 SPS.run Result number: 43 Calculation start: 3/8/2001 8:30:33 PM Calculation end: 3/8/2001 8:30:36 PM Kernel version: 5/22/2000 Run parameters Angle Increment: 1.00 ° Reflection Depth: 0 Number of reflections: 10 Weighting: dB(A) Standards: Industry: VDI 2714/2720 Air absorption: ISO 3891 Limitation of screening loss: Environment: CANNON ROAD LIFT STATION NOISE ASSESSMENT Carlsbad Municipal Water District VDI-Parameters for diffraction Dissection parameters: single/multiple Air pressure rel. Humidity Temperature i C1=3 C2=20 Distance to diameter factor Minimal Distance [m] Maximal Difference GND+Diffraction 20 dB 125 dB 1013.25 mbar 30% 5°C 2 1 m 1dB DHK Carlsbad Municipal Water District PAGE 1 CANNON ROAD LIFT STATION NOISE ASSESSMENT - FIGURE 4-3: ENCLOSURES ON FANS Assessment: Geometry data FIGURE 4-3.sf1 contains: LARGE CALC AREA.geo CONTOURS.geo WALLS, geo RECEIVERS.geo Maximal No. of iterations Leq 06-22|22-06|00-24 3/8/2001 6:56:46 PM 3/8/2001 3/8/2001 3/8/2001 3/8/2001 CANNON ROAD LIFT STATION.gec TEXT.geo 3/8/2001 ROADS PLUS.geo 3/8/2001 STACK.geo 3/8/2001 DESILTING BASIN.geo 3/8/2001 SOUND WALL.geo 3/8/2001 FANS ENCLOSED.geo 3/8/2001 7:06:58 PM 7:06:58 PM 7:06:58 PM 7:06:58 PM 7:06:58 PM 7:06:58 PM 7:06:58 PM 7:06:58 PM 7:06:58 PM 6:56:46 PM 3/8/2001 7:06:58 PM DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Receiver Levels - FIGURE 4-3: ENCLOSURES ON FANS Receiver Index 1 2 3 Floor 1 2 1 2 1 2 4 I 1 5 I 1 Name LOT 16 SPS LOT 17 SPS LOT 19 SPS SPS @ 5' (TEST POINT) Usage WR WR WR WR WR WR X m 192.00 192.00 142.00 142.00 174.00 174.00 Gl | 73.54 Y m 135.00 135.00 105.00 105.00 92.00 92.00 48.02 Z m 9.80 12.60 9.20 12.00 9.40 12.20 10.14 SPS EAST 25M (HILL) | WA | 97.00 | 45.00 | 16.74 6 | 1 SPS NORTH 25M Gl 7 8 9 10 11 1 SSPS NORTH 50M | Gl 1 SPS NW OF FAN WALL Gl 72.00 j 71.00 | 10.50 72.00 69.65 96.00 9.12 50.77 10.64 1 ISPS SOUTH 25M (HILL) | Gl j 72.00 | 23.00 | 16.74 1 SPS WEST 25M Gl 1 SPS WEST 50M Gl 47.00 45.00 10.50 22.00 45.00 9.12 Terrain Height m 9.80 9.80 9.20 9.20 9.40 9.40 9.14 15.24 9.13 7.62 LrD.max dB(A) 59 59 59 59 59 59 69 59 69 LrD dB(A) 13.8 14.4 13.8 18.2 4.3 4.7 LrD.dtn dB(A) -45.2 -44.6 -45.2 -40.8 -54.7 -54.3 63.2 -5.8 26.9 | -32.1 31.1 69 | 27.7 -37.9 | -41.3 9.13 | 69 | 45.2 i -23.8 15.24 9.13 69 31.1 69 34.7 -37.9 -34.3 7.62 69 28.2 -40.8 DHK Carlsbad Municipal Water District PAGE 1 CANNON ROAD LIFT STATION NOISE ASSESSMENT Octave Spectra of the Sources in dB(A) - FIGURE 4-3: ENCLOSURES ON FANS Name STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure SrcTyp* Point Point Point Point X 72.00 73.00 70.50 72.00 Y 45.00 45.50 48.00 49.30 z 17.00 10.14 10.14 10.14 I.W 70.0 65.0 72.3 72.3 Ko 3.0 3.0 3.0 3.0 63Hz 59.0 63.4 63.4 12SHZ 58.8 63.5 63.5 250HZ 58.0 66.4 66.4 SOOHz 70.0 57.0 65.8 65.8 1000HZ 55.0 65.0 65.0 2000HZ 49.0 59.2 59.2 4000Hz 47.0 54.0 54.0 SOOOttt 44.0 49.9 49.9 DHK Carlsbad Municipal Water District PAGE 1 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Receiver Spectra in dB(A) - FIGURE 4-3: ENCLOSURES ON FANS Time Slice 63Hz 125Hz 250Hz SOOHz 1000Hz 2000Hz 4000HZ 8000HZ I Floor 1 Name LOT 16 SPS X 192.00 m Y 135.00 m Z 9.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 13.8 Day Night Special 2.1 2.1 2.1 -1.9 -1.9 -1.9 -3.2 -3.2 -3.2 13.2 13.2 13.2 -9.8 -9.8 -9.8 -17.3 -17.3 -17.3 -27.9 -27.9 -27.9 Floor 2 Name LOT 16 SPS X 192.00 m Y 135.00 m Z 12.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 14.4 Day Night Special 2.2 2.2 2.2 -1.8 -1.8 -1.8 -3.0 -3.0 -3.0 13.9 13.9 13.9 -9.8 -9.8 -9.8 -17.3 -17.3 -17.3 -27.9 -27.9 -27.9 Floor 1 Name LOT 17 SPS X 142.00 m Y 105.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 13.8 Day Night Special 4.5 4.5 4.5 1.1 1.1 1.1 0.4 0.4 0.4 12.7 12.7 12.7 -4.9 -4.9 -4.9 -11.7 -11.7 -11.7 -20.1 -20.1 -20.1 -28.8 -28.8 -28.8 Floor 2 Name LOT 17 SPS X 142.00 m Y 105.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 18.2 Day Night Special 6.3 6.3 6.3 2.3 2.3 2.3 1.1 1.1 1.1 17.6 17.6 17.6 -4.9 -4.9 -4.9 -11.7 -11.7 -11.7 -20.1 -20.1 -20.1 -28.8 -28.8 -28.8 Floor 1 Name LOT 19 SPS X 174.00 m Y 92.00 m Z 9.40 m Terrain 9.40 m LrD.max 59 dB(A) LrD 4.3 Day Night Special -0.3 -0.3 -0.3 -4.0 -4.0 -4.0 -4.4 -4.4 -4.4 -1.2 -1.2 -1.2 -6.9 -6.9 -6.9 -14.0 -14.0 -14.0 -23.2 -23.2 -23.2 Floor 2 Name LOT 19 SPS X 174.00 m Y 92.00 m Z 12.20 m Terrain 9.40 m LrD.max 59 dB(A) LrD 4.7 Day Night Special 0.2 0.2 0.2 -3.5 -3.5 -3.5 -4.1 -4.1 -4.1 -0.7 -0.7 -0.7 -6.9 -6.9 -6.9 -14.0 -14.0 -14.0 -23.2 -23.2 -23.2 Floor 1 Name SPS @ 5' (TEST POINT) X 73.54 m Y 48.02 m Z 10.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 63.2 Day Night Special S3.9 53.9 53.9 54.4 54.4 54.4 57.2 57.2 57.2 57.1 57.1 57.1 55.9 55.9 55.9 50.0 50.0 50.0 44.8 44.8 44.8 40.6 40.6 40.6 Floor 1 Name SPS EAST 25M (HILL) X97.00 m Y 45.00 m Z 16.74 m Terrain 15.24 m LrD.max 59 dB(A) LrD 26.9 Day Night Special 19.7 19.7 19.7 16.3 16.3 16.3 14.5 14.5 14.5 25.0 25.0 25.0 6.5 6.5 6.5 0.3 0.3 0.3 -5.7 -5.7 -5.7 -11.0 -11.0 -11.0 Floor 1 Name SPS NORTH 25M X 72.00 m Y 71.00 m 210.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 31.1 DHK Carlsbad Municipal Water District PAGE 1 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Receiver Spectra in dB(A) - FIGURE 4-3: ENCLOSURES ON FANS Time Slice Day Night Special 63Hz 21.0 21.0 21.0 125Hz 21.0 21.0 21.0 250Hz 20.7 20.7 20.7 SOOHz 29.4 29.4 29.4 1000HZ 14.4 14.4 14.4 2000HZ 8.1 8.1 8.1 4000HZ 2.1 2.1 2.1 BOOOHz •3.1 -3.1 •3.1 Floor 1 Name SPS NORTH 50M X 72.00 m Y 96.00 m 2 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 27.7 Day Night Special 14.6 14.6 14.6 14.7 14.7 14.7 14.4 14.4 14.4 27.0 27.0 27.0 7.7 7.7 7.7 1.2 1.2 1.2 -5.7 -5.7 -5.7 -12.3 -12.3 -12.3 Floor 1 Name SPS NW OF FAN WALL X69.65 m Y 50.77 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 45.2 Day Night Special 39.8 39.8 39.8 Floor 1 Name SPS SOUTH 25M (HILL Day Night Special 23.9 23.9 23.9 37.5 37.5 37.5 37.6 37.6 37.6 40.2 40.2 40.2 32.3 32.3 32.3 26.4 26.4 26.4 21.2 21.2 21.2 16.9 16.9 16.9 X 72.00 m Y 23.00 m Z 16.74 m Terrain 15.24 m LrD.max 69 dB(A) LrD 31.1 23.1 23.1 23.1 24.2 24.2 24.2 27.0 27.0 27.0 17.1 17.1 17.1 9.1 9.1 9.1 3.0 3.0 3.0 -2.5 -2.5 -2.5 Floor 1 Name SPS WEST 25M X 47.00 m Y 45.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 34.7 Day Night Special 23.7 23.7 23.7 21.7 21.7 21.7 21.4 21.4 21.4 33.8 33.8 33.8 14.1 14.1 14.1 7.4 7.4 7.4 1.4 1.4 1.4 -3.9 -3.9 -3.9 Floor 1 Name SPS WEST 50M X 22.00 m Y 45.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 28.2 Day Night Special 16.9 16.9 16.9 15.8 15.8 15.8 15.4 15.4 15.4 27.3 27.3 27.3 7.8 7.8 7.8 0.9 0.9 0.9 -5.9 -S.9 -5.9 -12.5 -12.5 -12.5 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Contribution Level - FIGURE 4-3: ENCLOSURES ON FANS Name Source Type LrD dB(A) Attenuation dB(A) Floor 1 Name LOT 16 SPS X 192.00 m Y 135.00 m Z 9.80 m Terrain 9.80 m LrD.max 59 dB(A) LrD 13.8 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point 13.2 -3.3 1.7 0.4 0.0 0.0 0.0 0.0 Floor 2 Name LOT 16 SPS X 192.00 m Y 135.00 m Z 12.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 14.4 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point 13.8 -3.1 1.8 0.5 0.0 0.0 0.0 0.0 Floor 1 Name LOT 17 SPS X 142.00 m Y 105.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 13.8 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point 12.6 -0.8 4.7 3.7 0.0 0.0 0.0 0.0 Floor 2 Name LOT 17 SPS X 142.00 m Y 105.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 18.2 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point 17.6 0.7 6.0 4.8 0.0 0.0 0.0 0.0 Floor 1 Name LOT 19 SPS X 174.00 m Y 92.00 m Z 9.40 m Terrain 9.40 m LrD.max 59 dB(A) LrD 4.3 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point -3.3 -6.2 -0.2 0.3 0.0 0.0 0.0 0.0 Floor 2 Name LOT 19 SPS X 174.00 m Y 92.00 m Z 12.20 m Terrain 9.40 m LrD.max 59 dB(A) LrD 4.7 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point -2.6 -5.8 0.0 0.6 0.0 0.0 0.0 0.0 Floor 1 Name SPS @ 5' (TEST POINT) X 73.54 m Y 48.02 m Z 10.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 63.2 STACK Booster Fan 65 dB(A) Point Point 47.2 50.4 0.0 0.0 DHK Carlsbad Municipal Water District PAGE 1 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Contribution Level - FIGURE 4-3: ENCLOSURES ON FANS Name Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Source Type Point Point LrD dB(A) 58.5 60.9 Attenuation dB(A) 0.0 0.0 Floor 1 Name SPS EAST 25M (HILL) X97.00 m Y 45.00 m Z 16.74 m Terrain 15.24 m LrD.max 59 dB(A) LrO 26.9 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point 24.9 15.0 19.4 17.8 0.0 0.0 0.0 0.0 Floor 1 Name SPS NORTH 25M X 72.00 m Y 71.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 31.1 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point 29.2 17.7 24.7 20.4 0.0 0.0 0.0 0.0 Floor 1 Name SPS NORTH SOW X 72.00 m Y 96.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 27.7 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point 26.9 12.0 18.2 13.8 0.0 0.0 0.0 0.0 Floor 1 Name SPS NW OF FAN WALL X 69.65 m Y 50.77 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 45.2 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point 38.9 30.9 40.7 41.0 0.0 0.0 0.0 0.0 Floor 1 Name SPS SOUTH 25M (HILL) X 72.00 m Y 23.00 m Z 16.74 m Terrain 15.24 m LrD.max 69 dB(A) LrD 31.1 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point 25.7 19.6 25.6 26.5 0.0 0.0 0.0 0.0 Floor 1 Name SPS WEST 25M X 47.00 m Y 45.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 34.7 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Point Point Point Point 33.7 20.9 22.4 25.0 0.0 0.0 0.0 0.0 Floor 1 Name SPS WEST 50M X22.00 m Y 45.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 28.2 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION NOISE ASSESSMENT Assessed Contribution Level - FIGURE 4-3: ENCLOSURES ON FANS Name STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Enclosure Scrubber Fan 02 with Enclosure Source Type Point Point Point Point LrD dB(A) 27.2 13.8 16.2 18.9 Attenuation dB(A) 0.0 0.0 0.0 0.0 DHK Carlsbad Municipal Water District PAGES CANNON ROAD LIFT STATION NOISE ASSESSMENT Mean Propagation - FIGURE 4-3: ENCLOSURES ON FANS SOURCE Source Type Lw dB(A) Ko dB Distance from Source to Receiver m Mean Spreading Loss (Adiv) dB Mean Ground Effect (Agr) dB Mean Barrier Loss (Abar) dB Mean Air Absorption (Aatm) dB Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) LrD dB(A) Floor 1 Name LOT16SPS X 192.00 m Y 135.00 m Z 9.80 m Terrain 9.80 m LrD.max 59 dB(A) LrD 13.8 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 150.04 148.77 149.30 147.33 54.5 54.5 54.5 54.4 4.2 4.8 4.8 4.8 0.5 11.9 14.1 15.4 0.6 0.1 0.2 0.3 13.2 -3.3 1.7 0.4 13.2 -3.3 1.7 0.4 Floor 2 Name LOT16SPS X 192.00 m Y 135.00 m Z 12.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 14.4 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 149.93 148.79 149.32 147.35 54.5 54.5 54.5 54.4 3.8 4.7 4.7 4.7 0.2 11.8 14.1 15.4 0.6 0.1 0.2 0.3 13.8 -3.1 1.8 0.5 13.8 -3.1 1.8 0.5 Floor 1 Name LOT17SPS X 142.00 m Y 105.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 13.8 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 92.44 91.03 91.36 89.38 50.3 50.2 50.2 50.0 3.1 4.6 4.6 4.6 6.7 14.0 15.7 16.8 0.4 0.1 0.2 0.2 12.6 -0.8 4.7 3.7 12.6 -0.8 4.7 3.7 Floor 2 Name LOT17SPS X 142.00 m Y 105.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 18.2 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 92.25 91.05 91.38 89.39 50.3 50.2 50.2 50.0 2.5 4.0 4.0 3.9 2.3 13.1 15.0 16.3 0.4 0.1 0.1 0.2 17.6 0.7 6.0 4.8 17.6 0.7 6.0 4.8 Floor 1 Name LOT19SPS X 174.00 m Y 92.00 m Z 9.40 m Terrain 9.40 m LrD.max 59 dB(A) LrD 4.3 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 112.46 111.09 112.36 110.48 52.0 51.9 52.0 51.9 4.8 4.8 4.8 4.8 19.1 17.3 18.4 18.0 0.4 0.2 0.4 0.3 -3.3 -6.2 -0.2 0.3 -3.3 -6.2 -0.2 0.3 Floor 2 Name LOT19SPS X 174.00 m Y 92.00 m Z 12.20 m Terrain 9.40 m LrD.max 59 dB(A) LrD 4.7 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 112.31 111.11 112.38 110.50 52.0 51.9 52.0 51.9 4.8 4.8 4.8 4.8 18.4 16.9 18.1 17.7 0.4 0.2 0.3 0.3 -2.6 -5.8 0.0 0.6 -2.6 -5.8 0.0 0.6 Floor 1 Name SPS @ 5' (TEST POINT) X 73.54 m Y 48.02 m Z 10.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 63.2 STACK Booster Fan 65 dB(A) Point Point 70.0 65.0 3.0 3.0 7.64 2.57 28.7 19.2 0.0 0.0 0.0 0.0 44.0 45.4 47.2 50.4 47.2 50.4 DHK Carlsbad Municipal Water District PAGE 1 CANNON ROAD LIFT STATION NOISE ASSESSMENT Mean Propagation - FIGURE 4-3: ENCLOSURES ON FANS SOURCE Scrubber Fan 01 with Scrubber Fan 02 with Source Type Point Point Lw dB(A) 72.3 72.3 Ko dB 3.0 3.0 Distance from Source to Receiver m 3.04 2.00 Mean Spreading Loss (Adiv) dB 20.6 17.0 Mean Ground Effect (Agr) dB 0.0 0.0 Mean Barrier Loss (Abar) dB Mean Air Absorption (Aatm) dB 0.0 0.0 Reflection Part dB(A) 56.2 57.5 Unassessed Sound Pressure at Receiver (Ls) dB(A) 58.5 60.9 LrD dB(A) 58.5 60.9 Floor 1 Name SPS EAST 25M (HILL) X 97.00 m Y 45.00 m Z 16.74 m Terrain 15.24 m LrD.max 59 dB(A) LrD 26.9 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 24.98 24.87 27.45 26.19 39.0 38.9 39.8 39.4 0.0 4.8 4.8 4.8 9.1 9.3 11.3 13.3 0.1 0.0 0.0 0.0 24.9 15.0 19.4 17.8 24.9 15.0 19.4 17.8 Floor 1 Name SPS NORTH 25M X 72.00 m Y 71.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 31.1 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 26.78 25.50 23.03 21.68 39.6 39.1 38.2 37.7 0.0 2.1 1.7 1.4 4.2 12.3 12.3 15.6 0.1 0.0 0.0 0.1 14.9 19.8 29.2 17.7 24.7 20.4 29.2 17.7 24.7 20.4 Floor 1 Name SPS NORTH 50M X 72.00 m Y 96.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 27.7 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 51.56 50.47 47.99 46.67 45.2 45.1 44.6 44.4 0.7 3.7 3.6 3.5 10.6 10.5 13.4 0.2 0.0 0.1 0.1 9.2 13.4 26.9 12.0 18.2 13.8 26.9 12.0 18.2 13.8 Floor 1 Name SPS NW OF FAN WALL X 69.65 m Y 50,77 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 45.2 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 8.89 6.26 2.94 2.81 30.0 26.9 20.4 20.0 0.0 0.0 0.0 0.0 6.0 12.9 15.8 15.8 0.0 0.0 0.0 0.0 34.4 27.6 35.5 35.9 38.9 30.9 40.7 41.0 38.9 30.9 40.7 41.0 Floor 1 Name SPS SOUTH 25M (HILL) X 72.00 m Y 23.00 rn Z 16.74 m Terrain 15.24 m LrD.max 69 dB(A) LrD 31.1 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 21.98 23.45 25.88 27.09 37.8 38.4 39.3 39.7 0.0 4.8 4.8 4.8 9.3 7.6 11.5 8.1 0.1 0.0 0.0 0.1 15.8 24.3 24.2 25.7 19.6 25.6 26.5 25.7 19.6 25.6 26.5 Floor 1 Name SPS WEST 25M X47.00 m Y 45.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 34.7 STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Point Point Point Point 70.0 65.0 72.3 72.3 3.0 3.0 3.0 3.0 25.81 25.98 23.67 25.35 39.2 39.3 38.5 39.1 0.0 2.2 1.8 2.1 10.5 12.5 11.5 0.1 0.0 0.0 0.1 19.1 21.2 33.7 20.9 22.4 25.0 33.7 20.9 22.4 25.0 Floor 1 Name SPS WEST 50M X22.00 m Y 45.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 28.2 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION NOISE ASSESSMENT Mean Propagation - FIGURE 4-3: ENCLOSURES ON FANS SOURCE STACK Booster Fan 65 dB(A) Scrubber Fan 01 with Scrubber Fan 02 with Source Type Point Point Point Point Lw dB(A) 70.0 65.0 72.3 72.3 Ko dB 3.0 3.0 3.0 3.0 Distance from Source to Receiver m 50.57 50.97 48.56 50.15 Mean Spreading Loss (Adiv) dB 45.1 45.1 44.7 45.0 Mean Ground Effect (Agr) dB 0.6 3.7 3.6 3.7 Mean Barrier Loss (Abar) dB 9.0 10.6 10.1 Mean Air Absorption (Aatm) dB 0.2 0.1 0.1 0.1 Reflection Part dB(A) 11.3 15.4 Unassessed Sound Pressure at Receiver (Ls) dB(A) 27.2 13.8 16.2 18.9 LrD dB(A) 27.2 13.8 16.2 18.9 DHK Carlsbad Municipal Water District PAGES CANNON ROAD LIFT STATION Run Information - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) CANNON ROAD LIFT STATION Carlsbad Municipal Water District Project description Project title: EngineerDHK Customer: Description: Conceptual Design Large Grid, 1000 meters Run description Calculation: Single Point Sound Title: FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Run file: SITUATION 3 FIGURE 4-4 GRID.run Result number: 4 Calculation start: 3/9/2001 11:06:19 AM Calculation end: 3/9/2001 11:06:23 AM Kernel version: 5/22/2000 Run parameters Angle Increment: 1.00 ° Reflection Depth: 0 Number of reflections: 10 Weighting: dB(A) Standards: Industry: VDI2714/2720 Air absorption: ISO 3891 Limitation of screening loss: Environment: VDI-Parameters for diffraction Dissection parameters: single/multiple Air pressure rel. Humidity Temperature i C1=3 C2=20 Distance to diameter factor Minimal Distance [m] Maximal Difference GND+Diffraction 20 dB 125 dB 1013.25 mbar 30% 5°C 2 1 m 1 dB DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Run Information - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Assessment: Geometry data FIGURE 4-4.sfl contains: CONTOURS.geo FAN WALL.geo HOUSES, geo LARGE AREA.geo PUMP STATION.gee SPS INDUSTRIAL.geo STACK.geo DESILT BASIN.geo ROADS .geo TEXT.geo LOTS.geo SOUND WALL.geo FAN 62 DB(A).geo Maximal No. of iterations Leq 06-22|22-06|00-24 3/8/2001 4:40:48 PM 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 3/8/2001 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM 4:40:48 PM DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION Assessed Receiver Levels - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Receiver Index 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Hoar 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 1 1 1 1 1 1 1 1 Name House 5 (SE) Mouse 6 House 7 LOT 14SPS LOT 16 SPS LOT17SPS LOT 19 SPS LOT 22 SPS LOT 25 SPS SPS 01 SPS 02 SPS 03 SPS 04 SPS 08 SPS 09 SPS 10 SPS 11 SPS 12 Usage , WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR WR X m 722.05 722.05 685.12 685.12 657.30 657.30 622.00 622.00 592.00 592.00 542.00 542.00 572.00 572.00 617.00 617.00 647.00 647.00 23.69 167.67 215.32 296.22 641 .03 626.97 521.90 440.00 365.07 Y ' m 289.54 289.54 266.87 266.87 228.41 228.41 540.00 540.00 535.00 535.00 505.00 505.00 494.00 494.00 485.00 485.00 495.00 495.00 568.24 763.67 881.04 796.73 205.13 159.13 95.21 92.00 107.15 z m 71.90 74.70 71.90 74.70 63.76 66.56 10.10 12.90 9.70 12.50 9.20 12.00 9.20 12.00 9.80 12.60 10.20 13.00 16.50 26.50 31.50 16.50 62.50 62.50 37.30 30.20 23.30 terrain Height m 69.50 69.50 69.50 69.50 61.36 61.36 10.10 10.10 9.70 9.70 9.20 9.20 9.20 9.20 9.80 9.80 10.20 10.20 15.00 25.00 30.00 15.00 61.00 61.00 35.80 28.70 21.80 LrD.max dBtA) 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 LrD dB(A) -2.5 -2.2 -0.8 -0.5 -1.5 -1.2 2.9 3.3 13.9 14.3 14.0 18.2 4.9 5.4 1.1 1.3 -0.2 0.0 7.1 5.8 6.5 6.7 -2.7 -1.4 -2.8 -1.4 I -0.2 UrO,«fiff ., dB(Al •61.5 -61.2 •59.8 •59.5 -60.5 •60.2 -56.1 •55.7 -45.1 -44.7 -45.0 •40.8 -54.1 -53.6 -57.9 -57.7 •59.2 -59.0 -51.9 •53.2 -52.5 •52.3 •61.7 -60.4 -61.8 -60.4 -59.2 I | DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Assessed Receiver Levels - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Receiver Index 19 20 21 22 23 24 25 26 27 28 Floor 1 1 1 1 1 1 1 1 1 1 Name SPS13 SPS14 SPS @ & (TEST POINT) SPS EAST 25M (HILL) SPS NORTH 2SM SPS NORTH 50M SPS NW OF FAN WALL SPS SOUTH 25M (HILL) SPS WEST 25M SPS WEST SOW Usage WR WR Gl Gl Gl Gl Gl Gl Gl Gl X m 461.00 436.00 474.02 497.50 472.50 472.50 470.00 472.50 447.50 422.50 Y , irk 240.00 253.00 446.00 448.00 473.00 500.00 450.50 423.00 448.00 448.00 z m 16.75 15.20 10.14 28.93 10.50 9.12 10.64 25.88 10.50 9.12 Terrain HelpM , m . 15.25 13.70 9.14 27.43 9.13 7.62 9.13 24.38 9.13 7.62 LrO.max dB(A) 59 59 69 69 69 69 69 69 69 69 Lr0 dt(AT 1.3 2.1 62.4 34.1 30.4 24.4 45.8 41.5 32.4 25.4 LrO.dlff dB(Al -57.7 -56.9 -6.6 -34.9 -38.6 -44.6 -23.2 -27.5 -36.6 -43.6 . DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION Octave Spectra of the Sources in dB(A) - FIGURE 4-4, WITH FAN ENCLOSURES Name STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures SrcType Point Point Point Point X 472.00 473.00 472.00 470.50 Y 445.00 445.50 449.30 448.00 Z 17.00 10.10 10.10 10.14 Lw 70.0 65.0 72.4 72.4 Ko 3.0 3.0 3.0 3.0 63HI 59.0 63.8 63.8 125H2 58.8 63.9 63.9 250HZ 58.0 66.4 66.4 SOOHz 70.0 57.0 65.8 65.8 1000HZ 55.0 65.0 65.0 2000H2 49.0 59.2 59.2 4000HZ 47.0 54.0 54.0 eoOOHz 44.0 49.9 49.9 DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Assessed Receiver Spectra in dB(A) - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Time Slice 63Hz 125Hz 250Hz SOOHz 1000Hz 2000HZ 4000HZ SOOOHz Floor 1 Name House 5 (SE) X722.0S m Y 289.54 m Z 71.90 m Terrain 69.50 m LrD.max 59 dB(A) LrD -2.5 Day Night Special -7.1 -7.1 -7.1 -9.0 -9.0 -9.0 -9.9 -9.9 -9.9 Floor 2 Name House 5 (SE) Day Night Special Floor 1 Name House 6 Day Night Special Floor 2 Name Houses Day Night Special Floor 1 Name House 7 Day Night Special Floor 2 Name House 7 Day Night Special -6.7 -6.7 -6.7 -8.7 -8.7 -8.7 -9.5 -9.5 -9.5 -9.9 -9.9 -9.9 -15.4 -15.4 -15.4 -23.9 -23.9 •23.9 X 722.05 m Y 289.54 -9.7 -9.7 •9.7 -15.4 •15.4 -15.4 -23.9 -23.9 •23.9 X 685.12 m Y 266.87 -4.6 -4.6 -4.6 -7.6 -7.6 -7.6 -8.5 -8.5 -8.5 -8.7 •8.7 -8.7 -14.7 -14.7 -14.7 -23.7 -23.7 -23.7 X685.12 m Y 266.87 -4.3 -4.3 -4.3 -7.2 -7.2 •7.2 -8.1 -8.1 •8.1 -8.4 -8.4 -8.4 -14.7 -14.7 -14.7 -23.7 -23.7 -23.7 X 657.30 m Y 228.41 -5.4 -5.4 -5.4 -8.5 -8.5 -8.5 -9.2 -9.2 -9.2 -9.2 -9.2 -9.2 -14.7 -14.7 -14.7 -24.0 -24.0 -24.0 X 657.30 m Y 228.41 -5.1 -5.1 -5.1 -8.2 -8.2 -8.2 -8.9 -8.9 -8.9 Floor 1 Name LOT 14 SPS Day Night Special -1.7 -1.7 -1.7 -5.4 -5.4 -5.4 Floor 2 Name LOT 14 SPS Day Night Special -1.4 -1.4 -1.4 -5.1 -5.1 -5.1 -6.6 -6.6 -6.6 -8.9 -8.9 -8.9 -14.7 -14.7 -14.7 -24.1 -24.1 -24.1 X 622.00 m Y 540.00 -1.7 -1.7 -1.7 -11.6 -11.6 -11.6 -19.4 -19.4 -19.4 X 622.00 m Y 540.00 -6.3 -6.3 -6.3 -0.9 -0.9 -0.9 -11.6 -11.6 -11.6 -19.4 -19.4 -19.4 m Z 74.70 m Z 71.90 m Z 74.70 m Z 63.76 m Terrain 69.50 m LrD.max 59 dB(A) LrD -2.2 m Terrain 69.50 m LrD.max 59 dB(A) LrD -0.8 m Terrain 69.50 m LrD.max 59 dB(A) LrD -0.5 m Terrain 61.36 m LrD.max 59 dB(A) LrD -1.5 m Z 66.56 m Terrain 61.36 m LrD.max 59 dB(A) LrD -1.2 m Z 10.10 m Z m Terrain 10.10 m LrD.max 59 dB(A) LrD 2.9 12.90 m Terrain 10.10 m LrD.max 59 dB(A) LrD 3.3 Floor 1 Name LOT 16 SPS X 592.00 m Y 535.00 m Z 9.70 m Terrain 9.70 m LrD.max 59 dB(A) LrD 13.9 DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Assessed Receiver Spectra in dB(A) - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Time Slice Day Night Special 63Hz 2.6 2.6 2.6 125Hz -1.4 -1.4 -1.4 250Hz -3.2 -3.2 -3.2 SOOHz 13.3 13.3 13.3 1000HZ -9.8 -9.8 -9.8 2000HZ -17.3 -17.3 -17.3 4000Hz -27.9 -27.9 -27.9 SOOOHz Floor 2 Name LOT16SPS X 592. 00 m Y 535.00 m Z 12.50 m Terrain 9.70 m LrD.max 59 dB(A) LrD 14.3 Day Night Special 2.7 2.7 2.7 -1.2 -1.2 -1.2 -3.0 -3.0 -3.0 13.7 13.7 13.7 -9.8 -9.8 -9.8 -17.3 -17.3 -17.3 -27.9 -27.9 -27.9 Floor 1 Name LOT17SPS X 542.00 m Y 505.00 m 29.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 14.0 Day Night Special 4.7 4.7 4.7 1.4 1.4 1.4 0.3 0.3 0.3 12.8 12.8 12.8 -4.9 -4.9 -4.9 -11.7 -11.7 -11.7 -20.1 -20.1 -20.1 -28.8 -28.8 -28.8 Floor 2 Name LOT17SPS X542.00 m Y 505.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 18.2 Day Night Special 6.7 6.7 6.7 2.6 2.6 2.6 1.0 1.0 1.0 17.6 17.6 17.6 -4.9 -4.9 -4.9 -11.7 -11.7 -11.7 -20.1 -20.1 -20.1 -28.8 -28.8 -28.8 Floor 1 Name LOT19SPS XS72.00 m Y 494.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 4.9 Day Night Special 0.5 0.5 0.5 -3.1 -3.1 -3.1 -4.0 -4.0 -4.0 -0.8 -0.8 -0.8 -6.9 -6.9 -6.9 -13.9 -13.9 -13.9 -23.0 -23.0 -23.0 Floor 2 Name LOT19SPS X 572. 00 m Y 494.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 5.4 Day Night Special 1.0 1.0 1.0 -2.5 -2.5 -2.5 -3.6 -3.6 -3.6 -0.3 -0.3 -0.3 -6.9 -6.9 -6.9 -13.9 -13.9 -13.9 -23.0 -23.0 -23.0 Floor 1 Name LOT 22 SPS X 61 7.00 m Y 485.00 m Z 9.80 m Terrain 9.80 m LrD.max 59 dB(A) LrD 1.1 Day Night Special -3.8 -3.8 -3.8 -7.1 -7.1 -7.1 -7.0 -7.0 -7.0 -4.5 -4.5 -4.5 -10.0 -10.0 -10.0 -17.4 -17.4 -17.4 -28.1 -28.1 -28.1 Floor 2 Name LOT 22 SPS X617.00 m Y 485.00 m Z 12.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 1.3 Day Night Special -3.4 -3.4 -3.4 -6.8 -6.8 -6.8 -7.0 -7.0 -7.0 -4.5 -4.5 -4.5 -10.0 -10.0 -10.0 -17.4 -17.4 -17.4 -28.1 -28.1 -28.1 Floor 1 Name LOT 25 SPS X647.00 m Y 495.00 m Z 10.20 m Terrain 10.20 m LrD.max 59 dB(A) LrD -0.2 Day Night -4.6 -4.6 -8.0 -8.0 -8.7 -8.7 -6.3 -6.3 -12.0 -12.0 -19.8 -19.8 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION Assessed Receiver Spectra in dB(A) - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Time Slice Special 63Hr -4.6 125Hz -8.0 250Hz -8.7 SOOHz -6.3 1000HZ •12.0 2000HZ -19.8 4000HZ SOOOHz Floor 2 Name LOT2SSPS X 647.00 m Y 495.00 m Z 13.00 m Terrain 10.20 m LrD.max 59 dB(A) LrD 0.0 Day Night Special -4.3 -4.3 -4.3 -7.7 -7.7 -7.7 -8.6 -8.6 -8.6 -6.2 -6.2 -6.2 -12.0 -12.0 -12.0 -19.8 -19.8 -19.8 Floor 1 Name SPS01 X23.69 m Y 568.24 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) LrD 7.1 Day Night Special -2.9 -2.9 -2.9 -2.5 •2.5 -2.5 -3.3 -3.3 -3.3 5.4 5.4 5.4 -14.9 -14.9 -14.9 •26.7 •26.7 •26.7 Floor 1 Name SPS 02 X 167.67 m Y 763.67 m Z 26.50 m Terrain 25.00 m LrD.max 59 dB(A) LrD 5.8 Day Night Special -2.2 -2.2 -2.2 -4.1 -4.1 -4.1 -5.0 -5.0 -5.0 3.9 3.9 3.9 -16.4 -16.4 -16.4 •27.9 -27.9 •27.9 Floor 1 Name SPS 03 X215.32 m Y 881.04 m Z 31.50 m Terrain 30.00 m LrD.max 59 dB(A) LrD 6.5 Day Night Special -3.2 -3.2 -3.2 -2.7 -2.7 -2.7 -3.6 -3.6 -3.6 4.7 4.7 4.7 -15.6 -15.6 -15.6 -28.1 -28.1 -28.1 Floor 1 Name SPS 04 X296.22 m Y 796.73 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) LrD 6.7 Day Night Special -1.2 -1.2 -1.2 -3.2 -3.2 -3.2 -4.1 -4.1 -4.1 4.8 4.8 4.8 -14.6 -14.6 -14.6 -25.6 -25.6 -25.6 Floor 1 Name SPS 08 X 641 .03 m Y 205.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD -2.7 Day Night Special -7.1 -7.1 -7.1 -10.1 -10.1 -10.1 -9.9 -9.9 -9.9 -9.3 -9.3 -9.3 -16.6 -16.6 -16.6 -25.7 -25.7 -25.7 Floor 1 Name SPS 09 X626.97 m Y 159.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD -1.4 Day Night Special -5.8 -5.8 -5.8 -7.8 -7.8 -7.8 -8.7 -8.7 -8.7 -9.2 -9.2 -9.2 -15.6 -15.6 -15.6 -25.1 -25.1 -25.1 Floor 1 Name SPS 10 X 521. 90 m Y 95.21 m Z 37.30 m Terrain 35.80 m LrD.max 59 dB(A) LrD -2.8 Day Night Special -9.1 -9.1 -9.1 -9.0 -9.0 -9.0 -8.6 -8.6 -8.6 -9.7 -9.7 -9.7 -15.4 -15.4 -15.4 -25.2 -25.2 -25.2 DHK Carlsbad Municipal Water District PAGE 3 CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Name Source Type LrD dB(A) Attenuation dB(A) Floor 1 Name House 5 (SE) X 722.05 m Y 289.54 m Z 71.90 m Terrain 69.50 m LrD.max 59 dB(A) LrD -2.5 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -13.6 -14.6 -5.7 •6.6 0.0 0.0 0.0 0.0 Floor 2 Name House 5 (SE) X 722.05 m Y 289.54 m Z 74.70 m Terrain 69.50 m LrD.max 59 dB(A) LrD -2.2 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -13.1 -14.3 -5.5 -6.4 0.0 0.0 0.0 0.0 Floor 1 Name House 6 X685.12 m Y 266.87 m Z 71.90 m Terrain 69.50 m LrD.max 59 dB(A) LrD -0.8 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -11.7 -13.4 -4.5 -4.4 0.0 0.0 0.0 0.0 Floor 2 Name House 6 X 685.12 m Y 266.87 m Z 74.70 m Terrain 69.50 m LrD.max 59 dB(A) LrD -0.5 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -11.1 -13.2 -4.2 -4.1 0.0 0.0 0.0 0.0 Floor 1 Name House 7 X 657.30 m Y 228.41 m Z 63.76 m Terrain 61.36 m LrD.max 59 dB(A) LrD -1.5 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -11.6 -12.6 -6.9 -4.2 0.0 0.0 0.0 0.0 Floor 2 Name House 7 X 657.30 m Y 228.41 m Z 66.56 m Terrain 61.36 m LrD.max 59 dB(A) LrD -1.2 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -11.1 -12.3 -6.6 -4.0 0.0 0.0 0.0 0.0 Floor 1 Name LOT14SPS X622.00 m Y 540.00 m Z 10.10 m Terrain 10.10 m LrD.max 59 dB(A) LrD 2.9 STACK Booster Fan Point Point -2.5 -7.6 0.0 0.0 DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Name Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Source Type Point Point LrD dB(A) •2.6 -1.8 Attenuation dB(A) 0.0 0.0 Floor 2 Name LOT 14 SPS X 622 .00 m Y 540.00 m Z 12.90 m Terrain 10.10 m LrD.max 59 dB(A) LrD 3.3 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -1.6 -7.3 -2.4 -1.5 0.0 0.0 0.0 0.0 Floor 1 Name LOT 16 SPS X592.00 m Y 535.00 m Z 9.70 m Terrain 9.70 m LrD.max 59 dB(A) LrD 13.9 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 13.3 -2.4 0.7 2.0 0.0 0.0 0.0 0.0 Floor 2 Name LOT 16 SPS X592.00 m Y 535.00 m Z 12.50 m Terrain 9.70 m LrD.max 59 dB(A) LrD 14.3 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 13.7 -2.3 0.8 2.2 0.0 0.0 0.0 0.0 Floor 1 Name LOT 17 SPS X542.00 m Y 505.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 14.0 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 12.7 -0.9 3.9 4.9 0.0 0.0 0.0 0.0 Floor 2 Name LOT 17 SPS X542.00 m Y 505.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 18.2 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 17.6 1.0 5.1 6.2 0.0 0.0 0.0 0.0 Floor 1 Name LOT 19 SPS X 572.00 m Y 494.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 4.9 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -2.7 -6.1 0.4 0.8 0.0 0.0 0.0 0.0 Floor 2 Name LOT 19 SPS X 572.00 m Y 494.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 5.4 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Name STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Source Type Point Point Point Point LrD dB(A) -2.0 -5.7 0.8 1.3 Attenuation dB(A) 0.0 0.0 0.0 0.0 Floor 1 Name LOT22SPS X 61 7.00 m Y 485.00 m 2 9.80 m Terrain 9.80 m LrD.max 59 dB(A) LrD 1.1 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -7.1 -9.9 -3.1 -3.0 0.0 0.0 0.0 0.0 Floor 2 Name LOT 22 SPS X 61 7.00 m Y 485.00 m Z 12.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 1.3 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -7.1 -9.6 -2.9 -2.8 0.0 0.0 0.0 0.0 Floor 1 Name LOT 25 SPS X 647.00 m Y 495.00 m 210.20 m Terrain 10.20 m LrD.max 59 dB(A) LrD -0.2 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -8.9 -10.4 -4.5 -4.2 0.0 0.0 0.0 0.0 Floor 2 Name LOT 25 SPS X647.00 m Y 495.00 m 213.00 m Terrain 10.20 m LrD.max 59 dB(A) LrD 0.0 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -8.6 -10.2 -4.4 -4.0 0.0 0.0 0.0 0.0 Floor 1 Name SPS 01 X 23.69 m Y 568.24 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) LrD 7.1 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 5.2 -6.4 -1.1 -1.3 0.0 0.0 0.0 0.0 Floor 1 Name SPS 02 X 167.67 m Y 763.67 m 226.50 m Terrain 25.00 m LrD.max 59 dB(A) LrD 5.8 STACK Booster Fan Scrubber Fan 02 with Enclosures Point Point Point 3.7 -S.2 -2.4 0.0 0.0 0.0 DHK Carlsbad Municipal Water District PAGE 3 CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Name Scrubber Fan 01 with Enclosures Source Type Point LrD dB(A) -2.5 Attenuation dB(A) 0.0 Floor 1 Name SPS 03 X21S.32 m Y 881.04 m Z 31.50 m Terrain 30.00 m LrD.max 59 dB(A) LrD 6.5 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 4.5 -4.6 -1.8 -2.0 0.0 0.0 0.0 0.0 Floor 1 Name SPS 04 X296.22 m Y 796.73 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) LrD 6.7 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 4.6 -4.3 -1.4 -1.5 0.0 0.0 0.0 0.0 Floor 1 Name SPS 08 X 641 .03 m Y 205.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD -2.7 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -11.4 -13.7 -6.5 -7.1 0.0 0.0 0.0 0.0 Floor 1 Name SPS 09 X 626.97 m Y 159.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD -1.4 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -11.4 -13.8 -5.7 -4.8 0.0 0.0 0.0 0.0 Floor 1 Name SPS 10 X 521 .90 m Y 95.21 m Z 37.30 m Terrain 35.80 m LrD.max 59 dB(A) LrD -2.8 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures j Point Point Point Point -13.8 -15.8 -6.7 -6.1 0.0 0.0 0.0 0.0 Floor 1 Name SPS 11 X 440.00 m Y 92.00 m Z 30.20 m Terrain 28.70 m LrD.max 59 dB(A) LrD -1.4 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -10.9 -13.8 -5.2 -5.2 0.0 0.0 0.0 0.0 Floor 1 Name SPS 12 X365.07 m Y 107.15 m Z 23.30 m Terrain 21.80 m LrD.max 59 dB(A) LrD -0.2 STACK Point | -10.4 0.0 DHK Carlsbad Municipal Water District PAGE 4 CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Name Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Source Type Point Point Point LrD dB(A) -12.7 -4.6 -3.4 Attenuation dB(A) 0.0 0.0 0.0 Floor 1 Name SPS 13 X 461 .00 m Y 240.00 m 2 16.75 m Terrain 15.25 m LrD.max 59 dB(A) LrD 1.3 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -10.0 -10.6 -2.1 -2.6 0.0 0.0 0.0 0.0 Floor 1 Name SPS 14 X 436.00 m Y 253.00 m 215.20 m Terrain 13.70 m LrD.max 59 dB(A) LrD 2.1 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point -8.7 -7.3 -0.9 -3.0 0.0 0.0 0.0 0.0 Floor 1 Name SPS @ 51 (TEST POINT) X 474.02 m Y 448.00 m Z 10.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 62.4 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 46.8 50.2 59.9 57.8 0.0 0.0 0.0 0.0 Floor 1 Name SPS EAST 25M (HILL) X 497.50 m Y 448.00 m Z 28.93 m Terrain 27.43 m LrD.max 69 dB(A) LrD 34.1 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 32.9 20.0 21.9 25.9 0.0 0.0 0.0 0.0 Floor 1 Name SPS NORTH 25M X472.50 m Y 473.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 30.4 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 28.5 17.0 19.8 24.1 0.0 0.0 0.0 0.0 Floor 1 Name SPS NORTH 50M X 472.50 m Y 500.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 24.4 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 22.7 9.7 13.3 17.8 0.0 0.0 0.0 0.0 DHK Carlsbad Municipal Water District PAGES CANNON ROAD LIFT STATION Assessed Contribution Level - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) Name Source Type LrD dB(A) Attenuation dB(A) Floor 1 Name SPS NW OF FAN WALL X 470.00 m Y 450.50 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 45.8 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 37.4 31.3 42.2 41.7 0.0 0.0 0.0 0.0 Floor 1 Name SPS SOUTH 25M (HILL) X 472.50 m Y 423.00 m Z 25.88 m Terrain 24.38 m LrD.max 69 dB(A) LrD 41.5 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 34.4 28.4 37.8 36.6 0.0 0.0 0.0 0.0 Floor 1 Name SPS WEST 25M X447.50 m Y 448.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 32.4 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 30.5 18.3 25.1 23.1 0.0 0.0 0.0 0.0 Floor 1 Name SPS WEST SOW X 422.50 m Y 448.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 25.4 STACK Booster Fan Scrubber Fan 02 with Enclosures Scrubber Fan 01 with Enclosures Point Point Point Point 23.7 12.5 16.6 16.7 0.0 0.0 0.0 0.0 DHK Carlsbad Municipal Water District PAGE 6 CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) SOURCE Source Type Lw dB(A) Ko dB Distance from Source to Receiver m Mean Spreading Loss (Adiv) dB Mean Ground Effect (Agr) dB Mean Barrier Loss (Abar) dB Mean Air Absorption (Aatm) dB Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) LrD dB(A) Floor 1 Name House 5 (SE) X 722.05 m Y 289.54 m Z 71.90 m Terrain 69.50 m LrD.max 59 dB(A) LrD -2.5 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 299.24 300.01 302.82 303.37 Floor 2 Name House 5 (SE) STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 30 3.0 3.0 299.76 300.60 303.40 303.95 60.5 60.5 60.6 60.6 4.8 4.8 4.8 4.8 20.1 16.9 17.7 17.6 1.1 0.4 0.7 0.7 -47.1 -9.2 -11.6 -13.6 -14.6 -5.7 -6.6 -13.6 -14.6 -5.7 -6.6 X 722.05 m Y 289.54 m Z 74.70 m Terrain 69.50 m LrD.max 59 dB(A) LrD -2.2 60.5 60.6 60.6 60.7 4.8 4.8 4.8 4.8 19.6 16.6 17.4 17.3 1.1 0.4 0.6 0.6 -47.1 -8.9 -11.3 -13.1 -14.3 -5.5 -6.4 -13.1 -14.3 -5.5 -6.4 Floor 1 Name House 6 X685.12 m Y 266.87 m Z71.90 m Terrain 69.50 m LrD.max 59 dB(A) LrD -0.8 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 282.88 283.86 287.00 287.29 60.0 60.1 60.2 60.2 4.8 4.8 4.8 4.8 18.7 16.2 17.0 16.9 1.1 0.3 0.6 0.6 -7.8 -7.8 -11.7 -13.4 -4.5 -4.4 -11.7 -13.4 -4.5 -4.4 Floor 2 Name House 6 X 685.1 2 m Y 266.87 m Z 74.70 m Terrain 69.50 m LrD.max 59 dB(A) LrD -0.5 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 283.43 284.48 287.62 287.90 60.0 60.1 60.2 60.2 4.8 4.8 4.8 4.8 18.2 15.9 16.7 16.6 1.1 0.3 0.5 0.5 -7.5 -7.5 -11.1 -13.2 -4.2 -4.1 -11.1 -13.2 -4.2 -4.1 Floor 1 Name House? X 657.30 m Y 228.41 m Z 63.76 m Terrain 61.36 m LrD.max 59 dB(A) LrD -1.5 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 288.59 289.52 293.00 292.97 60.2 60.2 60.3 60.3 4.8 4.8 4.8 4.8 18.5 15.9 16.7 16.7 1.1 0.3 0.5 0.5 -20.8 -25.3 -7.5 -11.6 •12.6 -6.9 -4.2 -11.6 -12.6 -6.9 -4.2 Floor 2 Name House 7 X 657 .30 m Y 228.41 m Z 66.56 m Terrain 61.36 m LrD.max 59 dB(A) LrD -1.2 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 289.05 290.05 293.53 293.50 60.2 60.2 60.4 60.4 4.8 4.8 4.8 4.8 18.0 15.7 16.4 16.4 1.1 0.3 0.5 0.5 -20.5 -25.3 -7.3 -11.1 -12.3 -6.6 -4.0 -11.1 -12.3 -6.6 -4.0 Floor 1 Name LOT14SPS X622.00 m Y 540.00 m Z 10.10 m Terrain 10.10 m LrD.max 59 dB(A) LrD 2.9 STACK Booster Fan Point Point 70.0 65.0 3.0 3.0 177.53 176.28 56.0 55.9 4.8 4.8 14.0 14.7 0.7 0.2 -2.5 -7.6 -2.5 -7.6 DHK Carlsbad Municipal Water District PAGE1 CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) SOURCE Scrubber Fan 02 with Scrubber Fan 01 with Source Type Point Point Lw dB(A) 72.4 72.4 Ko dB 3.0 3.0 Distance from Source to Receiver m 175.13 177.09 Mean Spreading Loss (Adiv) dB 55.9 56.0 Mean Ground Effect (Agr) dB 4.8 4.8 Mean Barrier Loss (Abar) dB 17.0 16.1 Mean Air Absorption (Aatm) dB 0.4 0.3 Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) -2.6 -1.8 LrD dB(A) -2.6 -1.8 Floor 2 Name LOT14SPS X622.00 m Y 540.00 m Z 12.90 m Terrain 10.10 m LrD.max 59 dB(A) LrD 3.3 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 177.44 176.30 175.15 177.11 56.0 55.9 55.9 56.0 4.6 4.8 4.8 4.8 13.3 14.4 16.8 15.8 0.7 0.2 0.4 0.3 -1.6 -7.3 -2.4 -1.5 -1.6 -7.3 -2.4 -1.5 Floor 1 Name LOT16SPS X 592.00 m Y 535.00 m Z 9.70 m Terrain 9.70 m LrD.max 59 dB(A) LrD 13.9 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 150.04 148.77 147.33 149.30 54.5 54.5 54.4 54.5 4.6 4.8 4.8 4.8 11.1 15.3 13.9 0.6 0.1 0.2 0.2 13.3 -2.4 0.7 2.0 13.3 -2.4 0.7 2.0 Floor 2 Name LOT16SPS X 592.00 m Y 535.00 m Z 12.50 m Terrain 9.70 m LrD.max 59 dB(A) LrD 14.3 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 149.93 148.78 147.35 149.32 54.5 54.5 54.4 54.5 4.2 4.8 4.8 4.8 10.9 15.2 13.8 0.6 0.1 0.2 0.2 13.7 -2.3 0.8 2.2 13.7 •2.3 0.8 2.2 Floor 1 Name LOT17SPS X542.00 m Y 505.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 14.0 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 6S.O 72.4 72.4 3.0 3.0 3.0 3.0 92.44 91.03 89.38 91.36 50.3 50.2 50.0 50.2 4.8 4.6 4.6 4.6 4.8 14.0 16.7 15.6 0.4 0.1 0.2 0.2 12.7 -0.9 3.9 4.9 12.7 -0.9 3.9 4.9 Floor 2 Name LOT17SPS X 542.00 m Y 505.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 18.2 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 92.25 91. OS 89.40 91.38 50.3 50.2 50.0 50.2 4.2 4.0 3.9 4.0 0.6 12.8 16.2 14.9 0.4 0.1 0.2 0.1 17.6 1.0 5.1 6.2 17.6 1.0 5.1 6.2 Floor 1 Name LOT19SPS X 572.00 m Y 494.00 m Z 9.20 m Terrain 9.20 m LrD.max 59 dB(A) LrD 4.9 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 111.53 110.15 109.44 111.34 51.9 51.8 51.8 51.9 4.8 4.8 4.8 4.8 18.5 17.3 18.1 17.6 0.4 0.2 0.3 0.3 -2.7 -6.1 0.4 0.8 -2.7 -6.1 0.4 0.8 Floor 2 Name LOT19SPS X572.00 m Y 494.00 m Z 12.00 m Terrain 9.20 m LrD.max 59 dB(A) LrD 5.4 DHK Carlsbad Municipal Water District PAGE 2 CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) SOURCE STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Source Type Point Point Point Point Lw dB(A) 70.0 65.0 72.4 72.4 Ko dB 3.0 3.0 3.0 3.0 Distance from Source to Receiver m 111.37 110.16 109.45 111.35 Mean Spreading Loss (Adiv) dB 51.9 51.8 51.8 51.9 Mean Ground Effect (Agr) dB 4.8 4.8 4.8 4.8 Mean Barrier Loss (Abar) dB 17.8 16.9 17.8 17.1 Mean Air Absorption (Aatm) dB 0.4 0.2 0.3 0.3 Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) -2.0 -5.7 0.8 1.3 LrD dB(A) -2.0 -5.7 0.8 1.3 Floor 1 Name LOT 22 SPS X 617.00 m Y 485.00 m Z 9.80 m Terrain 9.80 m LrD.max 59 dB(A) LrD 1.1 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 150.45 149.18 149.19 150.96 Floor 2 Name LOT 22 SPS STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 150.34 149.20 149.22 150.98 Floor 1 Name LOT 25 SPS STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 181.96 180.74 180.70 182.48 Floor 2 Name LOT 25 SPS STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 Floor 1 Name SPS 01 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 181.88 180.76 180.73 182.51 54.5 54.5 54.5 54.6 4.8 4.8 4.8 4.8 20.2 18.3 18.8 18.6 0.6 0.3 0.5 0.5 -7.1 -9.9 -3.1 -3.0 -7.1 -9.9 -3.1 -3.0 X 61 7.00 m Y 485.00 m Z 12.60 m Terrain 9.80 m LrD.max 59 dB(A) LrD 1.3 54.5 54.5 54.5 54.6 4.8 4.8 4.8 4.8 20.2 18.1 18.6 18.3 0.6 0.3 0.5 0.4 -7.1 -9.6 -2.9 -2.8 -7.1 -9.6 -2.9 -2.8 X647.00 m Y 495.00 m Z 10.20 m Terrain 10.20 m LrD.max 59 dB(A) LrD -0.2 56.2 56.1 56.1 56.2 4.8 4.8 4.8 4.8 20.2 17.2 18.5 18.1 0.7 0.3 0.5 0.5 -8.9 -10.4 -4.5 -4.2 -8.9 -10.4 -4.5 -4.2 X647.00 m Y 495.00 m Z 13.00 m Terrain 10.20 m LrD.max 59 dB(A) LrD 0.0 56.2 56.1 56.1 56.2 4.8 4.8 4.8 4.8 19.9 17.0 18.3 17.9 0.7 0.3 0.5 0.5 -8.6 -10.2 -4.4 -4.0 -8.6 -10.2 -4.4 -4.0 X23.69 m Y 568.24 m Z 16.50 m Terrain 15.00 m LrD.max 59 dB(A) LrD 7.1 464.52 465.39 463.44 462.33 Floor 1 Name SPS 02 STACK Booster Fan Scrubber Fan 02 with Point Point Point 70.0 65.0 72.4 3.0 3.0 3.0 440.35 440.88 437.45 64.3 64.4 64.3 64.3 4.1 4.3 4.3 4.3 6.7 8.9 9.0 1.8 0.4 0.6 0.6 1.6 -11.9 -6.2 -6.3 5.2 -6.4 -1.1 -1.3 5.2 -6.4 -1.1 -1.3 X 167.67 m Y 763.67 m Z 26.50 m Terrain 25.00 m LrD.max 59 dB(A) LrD 5.8 63.9 63.9 63.8 3.8 4.0 4.0 4.9 9.4 1.7 0.4 0.6 3.7 -5.2 -2.4 3.7 -5.2 -2.4 DHK Carlsbad Municipal Water District PAGE 3 CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) SOURCE Scrubber Fan 01 with Source Type Point Lw dB(A) 72.4 Ko dB 3.0 Distance from Source to Receiver m 437.35 Mean Spreading Loss (Adiv) dB 63.8 Mean Ground Effect (Agr) dB 4.0 Mean Barrier Loss (Abar) dB 9.5 Mean Air Absorption (Aatm) dB 0.6 Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) -2.5 LrD dB(A) -2.5 Floor 1 Name SPS03 X 215.32 m Y 881.04 m Z31.50 m Terrain 30.00 m LrD.max 59 dB(A) LrD 6.5 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 505.73 506.05 502.28 502.63 65.1 65.1 65.0 65.0 3.9 4.1 4.1 4.1 4.4 9.0 9.2 1.9 0.5 0.7 0.7 0.9 -9.8 -6.9 -7.0 4.5 -4.6 -1.8 -2.0 4.5 -4.6 -1.8 -2.0 Floor 1 Name SPS04 X 296.22 m Y 796.73 m Z 16.50 m Terrain 15.00 m LrD.max 59 OB(A) LrD 6.7 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 392.85 392.90 389.06 389.55 62.9 62.9 62.8 62.8 4.0 4.3 4.3 4.3 4.8 9.2 9.3 1.5 0.4 0.5 0.5 -24.8 4.6 -4.3 -1.4 -1.5 4.6 -4.3 -1.4 -1.5 Floor 1 Name SPS08 X641.03 m Y 205.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB{A) LrD -2.7 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 296.68 297.65 301.28 301.07 60.4 60.5 60.6 60.6 4.8 4.8 4.8 4.8 18.0 16.1 16.8 16.6 1.1 0.4 0.6 0.6 -14.0 -11.4 -13.7 -6.5 -7.1 -11.4 -13.7 -6.5 -7.1 Floor 1 Name SPS09 X626.97 m Y 159.13 m Z 62.50 m Terrain 61.00 m LrD.max 59 dB(A) LrD -1.4 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 328.04 329.03 332.80 332.37 61.3 61.3 61.4 61.4 4.8 4.8 4.8 4.8 17.1 15.3 16.0 16.1 1.3 0.3 0.5 0.5 -10.5 -8.1 -11.4 -13.8 -5.7 -4.8 -11.4 -13.8 -5.7 -4.8 Floor 1 Name SPS 10 X521.90 m Y 95.21 m Z 37.30 m Terrain 35.80 m LrD.max 59 dB(A) LrD -2.8 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 353.59 354.41 358.30 357.22 62.0 62.0 62.1 62.1 4.8 4.8 4.8 4.8 18.6 16.5 16.7 17.4 1.4 0.4 0.6 0.7 -10.8 -8.8 -13.8 -15.8 -6.7 -6.1 -13.8 -15.8 -6.7 -6.1 Floor 1 Name SPS 11 X 440.00 m Y 92.00 m Z 30.20 m Terrain 28.70 m LrD.max 59 dB(A) LrD -1.4 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 354.37 355.28 358.97 357.54 62.0 62.0 62.1 62.1 4.8 4.8 4.8 4.8 15.7 14.7 16.0 16.2 1.4 0.3 0.6 0.6 -8.4 -8.2 -10.9 -13.8 -5.2 -5.2 -10.9 -13.8 -5.2 -5.2 Floor 1 Name SPS 12 X 365.07 m Y 107.15 m Z 23.30 m Terrain 21.80 m LrD.max 59 dB(A) LrD -0.2 STACK Point 70.0 3.0 354.10 62.0 4.8 | 15.3 1.4 |-10.4 -10.4 DHK Carlsbad Municipal Water District PAGE 4 CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) SOURCE Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Source Type Point Point Point Lw dB(A) 65.0 72.4 72.4 Ko dB 3.0 3.0 3,0 Distance from Source to Receiver m 355.07 358.39 356.70 Mean Spreading Loss (Adiv) dB 62.0 62.1 62.0 Mean Ground Effect (Agr) dB 4.8 4.8 4.8 Mean Barrier Loss (Abar) dB 13.6 15.6 16.4 Mean Air Absorption (Aatm) dB 0.3 0.6 0.6 Reflection Part dB(A) -7.7 -5.0 Unassessed Sound Pressure at Receiver (Ls) dB(A) -12.7 -4.6 -3.4 LrD dB(A) -12.7 -4.6 -3.4 Floor 1 Name SPS 13 X 461 .00 m Y 240.00 m Z 16.75 m Terrain 15.25 m LrD.max 59 dB(A) LrD 1.3 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 205.11 205.77 209.50 208.13 57.2 57.3 57.4 57.4 4.8 4.8 4.8 4.8 20.2 17.8 18.2 18.4 0.8 0.4 0.6 0.6 -15.8 -4.6 -5.3 -10.0 -10.6 -2.1 -2.6 -10.0 -10.6 -2.1 -2.6 Floor 1 Name SPS 14 X 436.00 m Y 253.00 m Z 15.20 m Terrain 13.70 m LrD.max 59 dB(A) LrD 2.1 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 195.18 195.91 199.46 197.91 56.8 56.8 57.0 56.9 4.8 4.8 4.8 4.8 19.3 15.8 17.2 17.7 0.7 0.2 0.5 0.5 -11.0 -3.7 -8.5 -8.7 -7.3 -0.9 -3.0 -8.7 -7.3 -0.9 -3.0 Floor 1 Name SPS @ 51 (TEST POINT) X474.02 m Y 448.00 m Z 10.14 m Terrain 9.14 m LrD.max 69 dB(A) LrD 62.4 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 7.75 2.70 2.40 3.52 28.8 19.6 18.6 21.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 43.3 45.5 57.1 55.8 46.8 50.2 59.9 57.8 46.8 50.2 59.9 57.8 Floor 1 Name SPS EAST 25M (HILL) X 497.50 m Y 448.00 m Z 28.93 m Terrain 27.43 m LrD.max 69 dB(A) LrD 34.1 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 28.29 30.97 31.70 32.86 40.0 40.8 41.0 41.3 0.0 0.2 0.0 0.0 6.9 12.4 8.1 0.1 0.0 0.1 0.1 32.9 20.0 21.9 25.9 32.9 20.0 21.9 25.9 Floor 1 Name SPS NORTH 25M X472.50 m Y 473.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 30.4 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 28.72 27.48 23.69 25.06 40.2 39.8 38.5 39.0 3.5 2.4 1.8 2.1 0.8 12.2 15.2 11.8 0.1 0.0 0.1 0.0 14.4 19.0 28.5 17.0 19.8 24.1 28.5 17.0 19.8 24.1 Floor 1 Name SPS NORTH 50M X 472.50 m Y 500.00 m Z9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 24.4 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 55.51 54.46 50.67 52.00 45.9 45.7 45.1 45.3 4.2 3.8 3.7 3.7 10.6 13.2 10.2 0.2 0.0 0.1 0.1 4.9 13.1 22.7 9.7 13.3 17.8 22.7 9.7 13.3 17.8 DHK Carlsbad Municipal Water District PAGES CANNON ROAD LIFT STATION Mean Propagation - FIGURE 4-4, WITH FAN ENCLOSURES (1000M) SOURCE Source Type Lw dB(A) Ko dB Distance from Source to Receiver m Mean Spreading Loss (Adiv) dB Mean Ground Effect (Agr) dB Mean Barrier Loss (Abar) dB Mean Air Absorption (Aatm) dB Reflection Part dB(A) Unassessed Sound Pressure at Receiver (Ls) dB(A) LrD dB(A) Floor 1 Name SPS NW OF FAN WALL X 470.00 m Y 450.50 m Z 10.64 m Terrain 9.13 m LrD.max 69 dB(A) LrD 45.8 STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 Floor 1 Name SPS SOUTH 25M (HILL STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 8.64 5.85 2.39 2.60 29.7 26.3 18.6 19.3 0.0 0.0 0.0 0.0 7.8 13.3 16.0 15.8 0.0 0.0 0.0 0.0 33.1 28.2 36.6 36.1 37.4 31.3 42.2 41.7 37.4 31.3 42.2 41.7 X 472.50 m Y 423.00 m Z 25.88 m Terrain 24.38 m LrD.max 69 dB(A) LrD 41.5 3.0 3.0 3.0 3.0 23.71 27.46 30.65 29.58 Floor 1 Name SPS WEST 25M STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 Floor 1 Name SPS WEST 50M STACK Booster Fan Scrubber Fan 02 with Scrubber Fan 01 with Point Point Point Point 70.0 65.0 72.4 72.4 3.0 3.0 3.0 3.0 25.50 25.60 24.52 22.98 38.5 39.8 40.7 40.4 0.0 1.9 0.7 0.7 8.8 0.1 0.1 0.2 0.1 24.3 35.5 36.3 34.4 28.4 37.8 36.6 34.4 28.4 37.8 36.6 X 447.50 m Y 448.00 m Z 10.50 m Terrain 9.13 m LrD.max 69 dB(A) LrD 32.4 39.1 39.2 38.8 38.2 3.2 2.1 2.0 1.7 10.4 11.8 12.3 0.1 0.0 0.0 0.0 14.0 21.3 30.5 18.3 25.1 23.1 30.5 18.3 25.1 23.1 X422.50 m Y 448.00 m Z 9.12 m Terrain 7.62 m LrD.max 69 dB(A) LrD 25.4 50.17 50.53 49.48 47.97 45.0 45.1 44.9 44.6 4.1 3.7 3.6 3.6 9.0 10.2 10.4 0.2 0.1 0.1 0.1 8.7 23.7 12.5 16.6 16.7 23.7 12.5 16.6 16.7 DHK Carlsbad Municipal Water District PAGE 6