HomeMy WebLinkAboutS2019-0044 - MiscSz0l9 •o0uu
1601 Doro+hy Ln
DL Acoustics
14301 Middletown Lane Westminster, CA 92683
/%/C{l&CbmwleVh;AlL'� Voice/Fax 714.373.3050 dlubman@dlacoustics.com
July 11, 2019
Homeowner
1601 Dorothy Ln
Newport Beach, CA, 92660 Report emailed to: ryan@ryandburress.com
Pool and or Spa Noise report for residence at 1601 Dorothy Ln, Newport Beach, CA
Dear Homeowner:
At about 12:00 p.m. Tuesday, July 11, 20191 measured the pool and or spa equipment noise at
your nearest neighbor's residence to test for compliance 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 (max 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: 48.96 dBA
Ambient noise level 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: 49 dBA
49 dBA (Pass for 24 hour use)
The currently installed pool and or spa apparatus noise of 49 dBA meets the Newport Beach
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 corrected for ambient does not exceed 50 dBA.
If you have any questions about this report, please do not hesitate to contact me at (714) 373-
3050 or by email at dlubman(a)dlacoustics.com
Sincerely yours,
f" L"
David Lubman, FASA, FINCE
Acoustical Consultant
Orange County Certification #200524
July 11, 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
are as 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 08/01/18. 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 Field Sound Calibrator, SN # 2588671
Continuous Inspection ;& Materials Vesting
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111s])ect1on c`*'', Testing, Inc. 441 Commercial Way, La .Habra, CA 90631-6.168
(562)941-2990 - (714)526-844:
FAX (562)94(1-002(,
FIELD DATA ON TEST SPECIMENS
1601 Nor -616 GIrl
--- ASTM C31, C138, C143, 0172, C173, C231, C1064 ---
CONCRETE: MORTAR: SHOTCRETE:XCORES: GUNITE
ADDRESS: 1601 DOROTHY LANE, NEWPORT BCH JOB #: DATE: 05/16/2019
JOB NAME: MITCHELL PERMIT#: S2019-0044 ISSUED BY:
ARCHITECT: ENGINEER: LACHER ENGINEERING
CONTRACTOR: RYAN BURRESS SUB: WEST COAST SHOTCRETE
LOCATION IN STRUCTURE: BOTTOM OF POOL
TRACT: PHASE:
LOT #:
CONCRETE SUPPLIER: GARY BALE PLANT: MIX #: 7 1/2 -1
TYPE OF CEMENT: V ADMIXTURE: TICKET #: 291586
SLUMP: 0.00 in. WATER ADDED: O gal; AIR TEMP: 0 F
CONCRETE TEMP: MIXING TIME: TIME CAST: 08:30
DATE CAST: 04/11/2019 RECEIVED AT LAB: 04/25/2019
SPECIMENS MADE BY: RICHARD LUIZ SPECIFIED PSI @ 28 Days: 4500
LAB #:940679 CLIENT: RICHARD LUIZ
TESTING INFORMATION:
SAMPLE IDENTIFICATION:
1822254
1822255
1822256
AGE DAYS:
28
28
28
DATE TEST:
05/09/2019
05/09/2019
05/09/2019
SIZE (in.): Height X Diameter
8.000 X 4.000
8.000 X 4.000
8.000 X 4.000
AREA (in.A2):
12,57
12.57'
12.57
CRUSH LOAD (lbs:)::
84110
85720
87288
COMPRESSIVE STRENGTH (psi.):
6690
6820
6940
HEIGHT -DIAMETER RATIO:
CORRECTION FACTOR:
CORRECTED STRENGTH (psi.):
BREAK TYPE:
111
II
11
C.T.M. USED:
Forney96
Forney96
Forney96
REMARKS:
ASTM C39 C174, C192, C470,, C617, C42
COMPLIES: X DOES NOT COMPLY: FOR INFORMATION:
THIS REPORT SHALL NOT BE REPRODUCED,. EXCEPT IN FULL, WITHOUT THE APPROVAL OF SOUTHWEST INSPECTION AND TESTING, INC
SAMPLES CAST BY OTHERS:
RESPECTFULLY SUBMITTED
SOUTHWEST INSPECTION AND TESTING
NOTICE:Thesetest results are from samples cast byinspectors
or technicians not employed by our firm. They were
either delivered to our laboratory or picked up by our
driver. We will accept no responsibility for the inspection
made on the 7obsite.by the inspector, furthermore we
ZAFAR AHMED
do not take responsibility for any. information on this
PRINCIPAL ENGINEER
report other than the strength as: tested. and reported.
ASTM C39 BREAKS: 1=CONE - t1=CONE AND SPLIT -
I11=COLUMNAR = IV=SHEAR - V=SIDE FRACTURES - VI=POINTED
City of Newport Beach Special Inspector Manual
�1.�F"PQttl.
r CITY OF NEWPORT BEACH
COMNMUNITY DEVELOPMENT DEPARTIWENT
3UMDING DItiSIONT
100 Civic Center Drive: I P.O. Box 1768.E Newport Beach,. CA 92658
wvvv/.ne11vooribeachca:aov ) (949)6-",43200
SPECIAL INSPECTION REPORT
Project Address: ( Y .� X`t�[)T[!1L—M '71
Permit Number: G WIP—04OL}_ Inspection Type (s)- W--7—cvne<.T-f--
S2of9 -ooyN
/G01 Doro4Aiy
( ) Periodic (Continuous
.:Describe Inspection, Including Location(s):
List Tests Madei
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