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X2019 -�0 87
jg2q �Gn'riQ90 Dr
DL Acoustics
14301 Middletown Lane Westminster, CA 92683
Reseamh di Consuftg kf Acousffhs Voice/Fax 714.373.3050 dlubman(polacoustics.com
September 30, 2019
Musselman Residence
1429 Santiago Dr.
Newport Beach, CA, 92660 Report emailed to: trevors@teserraoutdoors.com
Ecol and or Spa Noise report for residence at 1429 Santiago Dr., Newport Beach, CA
Dear Homeowner:
At about 11:30 p.m. Monday, September 30 20191 measured the pool and or spa equipment
noise at your nearest neighbor's residence to test for compffance with the Newport Beach noise
regulation (10.26.025).
Newport Beach Residential Noise Standard
For Noise Zone 1 (residential) the N. B. regulation's daytime noise level standard (maximum
noise level from 10 p.m. to 7 a.m.) is 55 dBA— corrected for ambient noise. The nighttime noise
standard dmax noise,level from .7.a.m. to 10 p.m.) is 50 dBA. The measurement is corrected for
ambient noise -and rounded to the:nearest decibel as shown below.
I am pleased to report that measured pool and or spa apparatus noise meets the Newport
Beach noise standard for 24-hour use. Pertinent details of my findings are reported below.
Locations and values of daytime noise measurements
Uncorrected pool and or spa noise + ambient noise measured at property line: 50.00 dBA
Ambient noise levet measured at this. location=. not; needed
Pool and or spa equipment noise corrected for ambient noise: not applicable
Pool and or spa equipment noise rounded to the nearest decibel: 60 dBA
50 dBA (Pass for 24 hour use)
The currently installed pool and or spa apparatus noise of 50 dBA meets the NewportBeach
noise code for both "daytime" use (7 a.m. to 10 p.m.) and "nighttime" use (10 p.m. to 7 a.m.),
since the noise correctedforambient does not exceed 50 dB&
If you have any questionsabout this report, please do not hesitate to contact me at (714) 373-
3050 or by email at dlubmanfldlacoustics.com
Sincerely yours,
fwtm yw
David Lubman, FASA, FINCE
Acoustical Consultant
Orange County Certification #200524
September 30, 2019
APPENDIX A:
Measurement Instrumentation
Equipment
The acoustical equipment used in the performance of this test is in accordance with
ASTM and ANSI (American National Standards Institute) requirements. Key elements
areas follows:
Critical sound measuring instruments (sound analyzer, calibrator, and microphone) are
annual calibrated by an independent NAVLAP certified laboratory. The most recent
calibration was on 07/31/19. All calibration documents are available for inspection upon
request.
Critical instruments employed were:
Bruel & Kjaer—Type 2270 Type I Precision Sound Analyzer SN # 3002720'
Bruel & Kjaer - Type 4189 microphone, SN # 2850866
Bruel & Kjaer — Type 4231.Fietd Sound Calibrator, SN # 2588671
OL Acoustics
14301 Middletown Lane Westminster, CA 92683
Re-qaamh C4nwMV ®? Akousfts Voice/Fax 714.373.3050 dlubman@dlacoustics.com
September 30, 2019
Receipt for $350 Payment in Full
One Pool and or Spa Sound Test for homeowner at 1429 Santiago Dr., N.B. on 9/30/19
Check 58718 received from Pro PooL Tech dated 9/30/19
David Lubman
DL Acoustics
EIN 33-0246903
Thanks foryourbusinessr