Attachment D - Tech Appendix H (Noise Report) — San Marcos City Council, December 12, 2023 (part 2 of 2)

Source Info and Traffic Counts
Number of Lanes 4
Lane Width (feet) 10
Roadway Width (feet) 40
Roadway Width (m) 12.2
Distance to Roadway (feet) 10
Distance to Roadway (m) 3
Distance Measured to Centerline or Edge of
Pavement?
Edge of Pavement
Estimated Vehicle Speed (MPH) 40

Traffic Counts
Vehicle Count Summary A 441, MT 8, HT 3, B 0, MC 0
Select Method for Recording Count Duration Enter Manually Counting Both Directions? Yes
Count Duration (minutes) 15
Vehicle Count Tally
Select Method for Vehicle Counts Enter Manually
Number of Vehicles - Autos 441
Number of Vehicles - Medium Trucks 8
Number of Vehicles - Heavy Trucks 3
Number of Vehicles - Buses 0
Number of Vehicles - Motorcyles 0

Description / Photos

Site Photos
Photo
Comments / Description Facing north towards San marcos

Page 2 ends

Monitoring
Record # 2
Site ID ST2
Site Location Lat/Long 33.136194, -117.188588
Begin (Time) 10:10:00
End (Time) 10:25:00
Leq 63.5
Lmax 74.5
Lmin 49.2
Other Lx? L90, L50, L10
L90 52.4
L50 59.1
L10 67.8
Other Lx (Specify Metric) L
Primary Noise Source Traffic
Other Noise Sources (Background) Distant Traffic, Rustling Leaves Is the same instrument and calibrator being used
as previously noted?
Yes
Are the meteorological conditions the same as
previously noted?
Yes

Traffic Counts
Vehicle Count Summary A 104, MT 3, HT 0, B 0, MC 0
Select Method for Recording Count Duration Enter Manually Counting Both Directions? Yes
Count Duration (minutes) 15
Vehicle Count Tally
Select Method for Vehicle Counts Enter Manually
Number of Vehicles - Autos 104
Number of Vehicles - Medium Trucks 3
Number of Vehicles - Heavy Trucks 0
Number of Vehicles - Buses 0
Number of Vehicles - Motorcyles 0

Page 3 ends

Description / Photos

Site Photos
Photo
Comments / Description Facing East towards via Vera Cruz

Monitoring
Record # 3
Site ID ST3
Site Location Lat/Long 33.136636, -117.191209
Begin (Time) 10:30:00
End (Time) 10:45:00
Leq 46.5
Lmax 58.1
Lmin 42
Other Lx? L90, L50, L10
L90 42.6
L50 44.1
L10 48.8
Other Lx (Specify Metric) L
Primary Noise Source Distant traffic
Other Noise Sources (Background) Distant Conversations / Yelling, Distant Traffic, Rustling Leaves Other Noise Sources Additional Description Moving truck Is the same instrument and calibrator being used
as previously noted?
Yes
Are the meteorological conditions the same as
previously noted?
Yes

Page 4 ends

Description / Photos

Site Photos
Photo
Comments / Description Facing south

Monitoring
Record # 4
Site ID ST4
Site Location Lat/Long 33.134329, -117.194216
Begin (Time) 10:50:00
End (Time) 11:05:00
Leq 64.9
Lmax 74.5
Lmin 46
Other Lx? L90, L50, L10
L90 51.3
L50 58.9
L10 69.2
Other Lx (Specify Metric) L
Primary Noise Source Traffic
Other Noise Sources (Background) Birds, Distant Traffic Other Noise Sources Additional Description Car wash tunnel Is the same instrument and calibrator being used
as previously noted?
Yes
Are the meteorological conditions the same as
previously noted?
Yes

Page 5 ends

Traffic Counts
Vehicle Count Summary A 132, MT 4, HT 0, B 1, MC 0
Select Method for Recording Count Duration Enter Manually Counting Both Directions? Yes
Count Duration (minutes) 15
Vehicle Count Tally
Select Method for Vehicle Counts Enter Manually
Number of Vehicles - Autos 132
Number of Vehicles - Medium Trucks 4
Number of Vehicles - Heavy Trucks 0
Number of Vehicles - Buses 1
Number of Vehicles - Motorcyles 0

Description / Photos

Site Photos
Photo

Page 6 ends

Appendix B
Construction Noise Modeling Input and Output

RESTAURANT ROW PROJECT - Acoustical Analysis Report
Nearest Receiver
Appendix B - Construction Noise Modeling Worksheets
noise level limit for construction phase, per County =75 allowable hours over which Leq is to be averaged (FTA guidance) =8 Construction Phase Equipment Total
Equipment Qty
AUF % (from

FHWA RCNM)
Reference
Lmax @ 50 ft.
from FHWA
RCNM
Lmax @ 50 ft. for quantify of equipmentSource to NSR
Distance (ft.)
Distance-
Adjusted Lmax
Allowable
Operation Time
(hours)
Allowable
Operation Time
(minutes)
Predicted 8-
hour Leq
Demolition Concrete Saw 1 20 90 90 525 69.6 8 480 63
Excavator 3 40 81 86 525 65.3 8 480 61
Dozer 2 40 82 85 525 64.6 8 480 61
Total for Demolition Phase: 66.4
Site Preparation backhoe 4 40 78 84 525 63.6 8 480 60
Dozer 3 40 82 87 525 66.3 8 480 62
Total for Site Preparation Phase: 64.2
Grading Excavator 2 40 81 84 525 63.6 8 480 60
Grader 1 40 85 85 525 64.6 8 480 61
dozer 1 40 82 82 525 61.6 8 480 58
scraper 2 40 84 87 525 66.6 8 480 63
backhoe 2 40 78 81 525 60.6 8 480 57
Total for Grading Phase: 66.9
Building Construction Crane 1 16 81 81 525 60.6 7 420 52 Gradall 3 40 83 88 525 67.3 8 480 63
Generator 1 50 72 72 525 51.6 8 480 49
Backhoe 3 40 78 83 525 62.3 7 420 58
Welder / Torch 1 40 73 73 525 52.6 8 480 49
Total for Building Construction Phase: 64.9
Paving Concrete Mixer Truck 2 40 79 82 525 61.6 8 480 58 Roller 2 20 80 83 525 62.6 8 480 56
Paver 2 50 77 80 525 59.6 8 480 57
Total for Paving Phase: 61.4
Architectural Coating - Phase 1 Compressor (air) 1 40 78 78 525 57.6 6 360 52 Total for Architectural Coating - Phase 1 Phase: 52.3
RCNM_restaurant_row_April_2023 prepared by Dudek Acoustic Center Equipment Description Impact
Device?
Acoustical
Use Factor
(%)
Lesser of or
available
Lmax
Spec. 721
Lmax
Measured
Lmax @50ft
(dBA, slow)
All Other Equipment > 5 HP No 50 85 85 -- N/A --
Auger Drill Rig No 20 84 85 84
Backhoe No 40 78 80 78
Bar Bender No 20 80 80 -- N/A --
Blasting Yes -- N/A -- 94 94 -- N/A --
Boring Jack Power Unit No 50 80 80 83
Chain Saw No 20 84 85 84
Clam Shovel (dropping) Yes 20 87 93 87
Compactor (ground) No 20 80 80 83
Compressor (air) No 40 78 80 78
Concrete Batch Plant No 15 83 83 -- N/A --
Concrete Mixer Truck No 40 79 85 79
Concrete Pump Truck No 20 81 82 81
Concrete Saw No 20 90 90 90
Crane No 16 81 85 81
Dozer No 40 82 85 82
Drill Rig Truck No 20 79 84 79
Drum Mixer No 50 80 80 80
Dump Truck No 40 76 84 76
Excavator No 40 81 85 81
Flat Bed Truck No 40 74 84 74
Front End Loader No 40 79 80 79
Generator No 50 72 72 81
Generator (<25KVA, VMS signs) No 50 70 70 73
Gradall No 40 83 85 83
Grader No 40 85 85 -- N/A --
Grapple (on backhoe) No 40 85 85 87
Horizontal Boring Hydr. Jack No 25 80 80 82
Hydra Break Ram Yes 10 90 90 -- N/A --
Impact Pile Driver Yes 20 95 95 101
Jackhammer Yes 20 85 85 89
Man Lift No 20 75 85 75
Mounted Impact Hammer (hoe ram) Yes 20 90 90 90
Pavement Scarafier No 20 85 85 90
Paver No 50 77 85 77
Pickup Truck No 40 55 55 75
Pneumatic Tools No 50 85 85 85
Pumps No 50 77 77 81
Refrigerator Unit No 100 73 82 73
Rivit Buster/chipping gun Yes 20 79 85 79
Rock Drill No 20 81 85 81
Roller No 20 80 85 80
Sand Blasting (Single Nozzle) No 20 85 85 96
Scraper No 40 84 85 84
Shears (on backhoe) No 40 85 85 96
Slurry Plant No 100 78 78 78
Slurry Trenching Machine No 50 80 82 80
Soil Mix Drill Rig No 50 80 80 -- N/A --
Tractor No 40 84 84 -- N/A --
Vacuum Excavator (Vac-truck) No 40 85 85 85
Vacuum Street Sweeper No 10 80 80 82
Ventilation Fan No 100 79 85 79
Vibrating Hopper No 50 85 85 87
Vibratory Concrete Mixer No 20 80 80 80
Vibratory Pile Driver No 20 95 95 101
Warning Horn No 5 83 85 83
Welder / Torch No 40 73 73 74

Appendix C
Traffic Noise Modeling Input and Output

San Marcos Restaurant Row
Traffic Noise Exposure Modeling Calculations - Summary
Project: 13844 San Marcos Restaurant Row
Number Name From To
Summary of Net Changes
1 South Las Posas North of San Marcos Blvd. 57.1 57.8
2 San Marcos Blvd. Las Posas Via Vera Cruz 70.0 70.6
3 Via Vera Cruz San Marcos Blvd. Grand Avenue 58.5 59.2 *All modeling assumes average pavement, level roadways (less than 1.5% grade), constant traffic flow and does not account for shielding of any type or finite roadway adjustments. All levels are reported as A-weighted noise levels.

Segment Description and Location Existing
(2019)
Year 2030
Prediction
San Marcos Restaurant Row - 1
Traffic Noise Model Calculations
Project: 13844 San Marcos Restaurant Row
Noise Level Descriptor: CNEL
Site Conditions: Hard
Traffic Input: ADT
Traffic K-Factor: 10
CNEL,
Number Name From To (mph) Near Far % Auto % Med % Hvy % Day % Eve % Night (dBA) 5,6,7 70 dBA 65 dBA 60 dBA 55 dBA Existing (2019) Conditions
1 South Las Posas North of San Marcos Blvd. 10,951 45 745 770 97.0% 2.0% 1.0% 77.0% 13.4% 9.6% 57.1 2 San Marcos Blvd. Las Posas Via Vera Cruz 32,216 40 65 115 97.0% 2.0% 1.0% 77.0% 13.4% 9.6% 70.0 3 Via Vera Cruz San Marcos Blvd. Grand Avenue 9,654 40 340 355 97.0% 2.0% 1.0% 77.0% 13.4% 9.6% 58.5 *All modeling assumes average pavement, level roadways (less than 1.5% grade), constant traffic flow and does not account for shielding of any type or finite roadway adjustments. All levels are reported as A-weighted noise levels.

Input
Speed Traffic Distribution Characteristics
Output
Distance to Contour, (feet)3
Distance to
Directional
Centerline,
(feet)4
86 25
Segment Description and Location
39 392
ADT
124 1239
2710
780
271
78 857
247
San Marcos Restaurant Row - 2
Traffic Noise Model Calculations
Project: 13844 San Marcos Restaurant Row
Noise Level Descriptor: CNEL
Site Conditions: Hard
Traffic Input: ADT
Traffic K-Factor:

CNEL,
Number Name From To (mph) Near Far % Auto % Med % Hvy % Day % Eve % Night (dBA) 5,6,7 70 dBA 65 dBA 60 dBA 55 dBA Year 2030 Prediction Conditions
1 South Las Posas North of San Marcos Blvd. 12,758 45 745 770 97.0% 2.0% 1.0% 77.0% 13.4% 9.6% 57.8 2 San Marcos Blvd. Las Posas Via Vera Cruz 37,532 40 65 115 97.0% 2.0% 1.0% 77.0% 13.4% 9.6% 70.6 3 Via Vera Cruz San Marcos Blvd. Grand Avenue 11,247 40 340 355 97.0% 2.0% 1.0% 77.0% 13.4% 9.6% 59.2 *All modeling assumes average pavement, level roadways (less than 1.5% grade), constant traffic flow and does not account for shielding of any type or finite roadway adjustments. All levels are reported as A-weighted noise levels. 29 91 288 909
100 316 999 3158
Segment Description and Location Distance to Contour, (feet)3 46 144 456 1443
Input Output
ADT
Speed
Distance to
Directional
Centerline,
(feet)4 Traffic Distribution Characteristics
San Marcos Restaurant Row
Traffic Noise Modeling Calculations - References
CitationReference
1 Caltrans Technical Noise Supplement. 2009 (November). Table (5-11), Pg 5-60. 2 Caltrans Technical Noise Supplement. 2009 (November). Equation (5-26), Pg 5-60. 3 Caltrans Technical Noise Supplement. 2009 (November). Equation (2-16), Pg 2-32. 4 Caltrans Technical Noise Supplement. 2009 (November). Equation (5-11), Pg 5-47, 48. 5 Caltrans Technical Noise Supplement. 2009 (November). Equation (2-26), Pg 2-55, 56. 6 Caltrans Technical Noise Supplement. 2009 (November). Equation (2-27), Pg 2-57. 7 Caltrans Technical Noise Supplement. 2009 (November). Pg 2-53. 8 Caltrans Technical Noise Supplement. 2009 (November). Equation (5-7), Pg 5-45. 9 Caltrans Technical Noise Supplement. 2009 (November). Equation (5-8), Pg 5-45. 10 Caltrans Technical Noise Supplement. 2009 (November). Equation (5-9), Pg 5-45. 11 Caltrans Technical Noise Supplement. 2009 (November). Equation (5-13), Pg 5-49. 12 Caltrans Technical Noise Supplement. 2009 (November). Equation (5-14), Pg 5-49. 13 Federal Highway Administration Traffic Noise Model Technical Manual. Report No. FHWA-PD-96-010. 1998 (January). Equation (16), Pg 67 14 Federal Highway Administration Traffic Noise Model Technical Manual. Report No. FHWA-PD-96-010. 1998 (January). Equation (20), Pg 69 15 Federal Highway Administration Traffic Noise Model Technical Manual. Report No. FHWA-PD-96-010. 1998 (January). Equation (18), Pg 69 2019 Volume 1.5% annual growth 2030 volume
Las Posas 10951 12757.92
San Marcos 32216 37531.64
Via Vera Cruz 9654 11246.91

Appendix D
Stationary Sources Operational Noise Prediction

NoisePro_Tech-Basis-Narr_mcs102721 prepared by M. Storm, INCE Bd. Cert. (Dudek) NoisePro OASPL_384x288 v. 092521 Technical Basis of Dudek’s “NoisePro” Excel-based Outdoor Sound Propagation Prediction Model In summary, the Microsoft Excel-based NoisePro outdoor sound propagation model developed by Dudek calculates the aggregate sound pressure level (SPL) received by each and every cell within a two - dimensional (2D) array (a product of X columns of cells by Y rows of cells). The quantity of this received SPL, in A-weighted decibels (dBA), is the logarithmic sum of acoustical contribution from each of “n” user- input sound emitting point sources located on the same 2D array, which may be written as follows:

𝑆𝑃𝐿𝑋,𝑌 = 10 ∗ log ∑ 100.1[𝐿𝑖−𝐴𝑖]
𝑛
𝑖=1

where each i ndividual source sound level ( Li) is attenuated by an algebraic sum of three attenuation factors (Ai = Adiv + Aatm + Agr) that are each dependent on the distance between the sound source position on the X by Y array and the receiving SPLX,Y position on a different position in the same 2D array of worksheet cells, where each cell is defined by the user as representing the center of a square area having equal sides of user -defined length in feet . The above expression is based on Equation 5 from the International Organization for Standardization (ISO) 9613 -2 “Acoustics – Attenuation of sound during propagation outdoors – Part 2: General method of calculation”, and the individual attenuation factors used by NoisePro emulate those in Equation 4 and may be summarized as follows:
• Adiv = attenuation due to geometrical divergence (i.e., pure distance), equating to 20*LOG(d/dref); and where d is the horizontal distance between a source and a receiver position, while dref is the reference distance at which the sound source Li is defined.
• Aatm = attenuation due to atmospheric absorption, which for 1,000 Hz (1 kHz) = 4.16*d/3280 and is derived from Equation 5.7 in Noise & Vibration Control Engineering (Beranek and Ver, 1992). • Agr = attenuation due to ground effects, appearing as Equation 10 in ISO 9613-2 and can be expressed with the following Excel formula:

Agr = MAX(0,4.8-[hs+hr]/d*[17+984/d])
where hs and hr are the heights (in feet) of the sound source and receiver positions above grade, respectively. This means that for small distances, attenuation from ground effects will be small or essentially zero; and, even at great distances, the attenuation from ground effects is effectively capped at 4.8 dB.

The Excel workbook comprising NoisePro calculates SPLX,Y by using a coding loop to evaluate the acoustic contribution from each attenuated sound source (Li - Ai) in sequence, and logarithmically adding the new evaluation to the previous total in a cumulative manner. When all sources have been evaluated, the loop terminates and yields an aggregate or log-summed total SPLX,Y value that is thus unique to a position in the 2D array of cells represented by X and Y, and can thus be “mapped”. If the user has defined a particular cell in the X by Y array as a uniquely tagged Receiver, then the corresponding SPLX,Y value can be indexed and displayed accordingly.

The resulting output array of cells, each having an individually calculated SPLX,Y numerical value, is then filled with a color (from a user-defined palette) by application of a Conditional Formatting rules set (an Excel formatting feature) that compares the dB quantity with user-defined “high” and “low” dB ranges for each available color. Each colored cell can thus be likened to a “pixel” within a 2D array that forms a composite image representing—visually—the sound propagation from all modeled sound sources.

GRID CALCULATION WORKSHEET
Example Portion of Concluded Calculations Loop
Source 69
grid size (ft) Source Tag P4
x 5.5 Source X-coordinate 1188.8
y 5.5 Source Y-coordinate 731.14
rcvr plane height (ft) Source Type PBALL
z 5 Source Reference SPL 58
Source Ref. Distance (ft.) 40
Grid Upper Left (C,R) Source Z-coordinate 3
1 1
Grid Lower Right (C,R)
384 288Receiver Location Cumulative
Column Row X-coord Y-coord Z-coord SPL
1 1 5.26 5.26 5 31.66
1 2 5.26 10.52 5 31.69
1 3 5.26 15.78 5 31.71
1 4 5.26 21.04 5 31.74
1 5 5.26 26.3 5 31.77
1 6 5.26 31.56 5 31.80
1 7 5.26 36.82 5 31.83
1 8 5.26 42.08 5 31.86
1 9 5.26 47.34 5 31.88
1 10 5.26 52.6 5 31.91
1 11 5.26 57.86 5 31.94
1 12 5.26 63.12 5 31.97
1 13 5.26 68.38 5 32.00
1 14 5.26 73.64 5 32.03
1 15 5.26 78.9 5 32.05
1 16 5.26 84.16 5 32.08
1 17 5.26 89.42 5 32.11
1 18 5.26 94.68 5 32.14
1 19 5.26 99.94 5 32.16
1 20 5.26 105.2 5 32.19
1 21 5.26 110.46 5 32.22
1 22 5.26 115.72 5 32.25
1 23 5.26 120.98 5 32.27
1 24 5.26 126.24 5 32.30
1 25 5.26 131.5 5 32.33
1 26 5.26 136.76 5 32.35
1 27 5.26 142.02 5 32.38
1 28 5.26 147.28 5 32.41
1 29 5.26 152.54 5 32.43

SOURCE/RECEIVER INVENTORY WITH MODEL GRID COORDINATE

LOCATIONS AND SOUND PRESSURE REFERENCE LEVELS
grid axis feet
x 5.26
y 5.26
Custom Source DescriptionTag SPL
(dBA)
CLEAR -40
HVAC 68 Sound Power of 76 dBA = 68 dB @ 1 meter (3.28 feet) Pickleball Court PlayPBALL 58 Dudek unpublished picklebal study 2 courts/4 players @ 40 feet = 61 dBA; single court = 58 dBA @ 40 feet Source 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Source Tag ULC H01 H02 H03 H04 H05 H06 H07 H08 H09 H10 H11 H12 H13 H14 H15 H16 H17 H18 Source X-coordinate 5.26 657.5 668.02 668.02 668.02 668.02 668.02 668.02 668.02 668.02 668.02 668.02 668.02 668.02 668.02 668.02 668.02 668.02 668.02 Source Y-coordinate 5.26 1162.46 1083.56 1062.52 1046.74 1030.96 1009.92 994.14 978.36 962.58 904.72 883.68 867.9 852.12 836.34 820.56 804.78 783.74 752.18 Source Type (enter abbrev.) CLEAR HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC Source Reference SPL -40 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 Source Reference Distance (ft.) 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 Source Height Above Grade (ft.) 6 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 Source 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 Source Tag H19 H20 H21 H22 H23 H24 H25 H26 H27 H28 H29 H30 H31 H32 H33 H34 H35 H36 H37 Source X-coordinate 668.02 668.02 668.02 668.02 668.02 662.76 662.76 662.76 662.76 662.76 731.14 789 867.9 867.9 867.9 867.9 873.16 1204.54 1204.54 Source Y-coordinate 736.4 720.62 704.84 689.06 673.28 473.4 415.54 389.24 368.2 347.16 347.16 347.16 347.16 368.2 389.24 410.28 473.4 794.26 804.78 Source Type (enter abbrev.) HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC Source Reference SPL 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 Source Reference Distance (ft.) 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 Source Height Above Grade (ft.) 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 Source 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 Source Tag H38 H39 H40 H41 H42 H43 H44 H45 H46 H47 H48 H49 H50 H51 H52 H53 H54 H55 H56 Source X-coordinate 1215.06 1215.06 1215.06 1215.06 1215.06 1215.06 1215.06 1215.06 1215.06 1215.06 1167.72 1146.68 1115.12 1094.08 1073.04 1046.74 1020.44 946.8 920.5 Source Y-coordinate 831.08 846.86 862.64 883.68 904.72 925.76 946.8 967.84 1141.42 1157.2 1162.46 1162.46 1162.46 1162.46 1162.46 1162.46 1162.46 1162.46 1162.46 Source Type (enter abbrev.) HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC Source Reference SPL 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 Source Reference Distance (ft.) 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 Source Height Above Grade (ft.) 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 Source 58 59 60 61 62 63 64 65 66 67 68 69
Source Tag H57 H58 H59 H60 H61 H62 H63 H64 P1 P2 P3 P4
Source X-coordinate 894.2 873.16 852.12 831.08 746.92 725.88 704.84 683.8 1199.28 1172.98 1146.68 1188.76 Source Y-coordinate 1162.46 1162.46 1162.46 1162.46 1162.46 1162.46 1162.46 1162.46 631.2 631.2 631.2 731.14 Source Type (enter abbrev.) HVAC HVAC HVAC HVAC HVAC HVAC HVAC HVAC PBALL PBALL PBALL PBALL Source Reference SPL 68 68 68 68 68 68 68 68 58 58 58 58 Source Reference Distance (ft.) 3.28 3.28 3.28 3.28 3.28 3.28 3.28 3.28 40 40 40 40 Source Height Above Grade (ft.) 25 25 25 25 25 25 25 25 3 3 3 3 "clear" the cumulative+source on a "Reset" click additional notes below for Custom sources:

Residential HVAC Carrier 16NA-48

RECEIVER INVENTORY WITH MODEL GRID COORDINATE LOCATIONS AND PREDICTED OPERATIONAL SOUND LEVEL EXPOSURE Receiver Tag R1 R2 R3 R4 R5 R6 R7 ST2 ST3
Receiver X-coordinate 630 761 908 1166 1250 1250 992 1549 966 Receiver Y-coordinate 898 320 404 578 677 877 1213 740 294 Receiver Height Above Ground 5 5 5 5 5 5 5 5 5
SPL Predicted at Receiver 53 51 51 60 57 54 50 42 45

San Marcos City CouncilDecember 12, 2023

San Marcos City Council
December 12, 2023