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t , <br /> Charles M. Salter <br /> ASSOCIATES INC <br /> Acoustics 30 January 2017 130 Sutter Street <br /> Audiovisual Floor 5 <br /> SaRabbi Ralei h Rick 94 Franc.xa CA <br /> esn <br /> Telecommunications g 941Qd <br /> Chabad of the Tri Valley T 4153970442 <br /> Security 5541 Blackbird Drive f 415.397Q454 <br /> wwwcrosolter con, <br /> Pleasanton, CA 94566 <br /> Email: rabbi@jewishtrivalley.com <br /> aeries M.Salty"PE Subject: JCC Tri Valley Preschool <br /> D°"dR FrondFASA Outdoor Preschool Play Area Noise <br /> Eric&oorR..d1 Mal PE Salter Project: 17-0029 <br /> Mho N.Sond"a LIED AP <br /> Thomas A.Sehndlr PE <br /> Dwand R.B.owb PhD,FAES Dear Rabbi Raleigh: <br /> Km.Graven.PE.RCM/.C1S•D <br /> Anthony P Nash PE As requested,we conducted a study of expected noise from the proposed preschool outdoor play area <br /> Anon Duty PE at the project site that would be transmitted to the neighboring residential properties.Our results are <br /> Lloyd Rancho compared related City standards and ambient noise levels measured at the site.This letter summarizes <br /> lhana 1 Cabot'.CIS our findings.An outline of environmental noise fundamentals is also provided in the Appendix. <br /> Eric A.Yee <br /> Joshua M.Rope.PE TEED AP <br /> Paw K.Licht.PE IEED AP SUMMARY <br /> Erhan C.Sob"PE tEED AP <br /> Craig I Giron RCM Though noise from children playing may be noticeable at the nearest neighboring residential property, <br /> Alwand.t K.Sone.PE it is projected to be below the referenced City noise standards. <br /> /wormy l Decks PE <br /> Rob Howland PSP.. 1 ACOUSTICAL STANDARDS <br /> Andr..v I McKee <br /> Josh 1.Hanson <br /> Wray C Patel City Noise Ordinance <br /> Vd.n.C Snub PE <br /> B.Mon.e a•Pipet The Pleasanton Noise Ordinance(Chapter 9.04 of the Municipal Code)does not contain specific <br /> Elisabeth I Kelson,CTS language limiting the noise from children playing or unamplified voices,which is common for city <br /> Ryan G.Rosl.p.A1A NCARB ordinances.The Ordinance primarily limits noise from machines, animals,and other devices. However, <br /> D"°°Hernandez the Noise Ordinance limits may be useful as a benchmark for the evaluation of predicted noise levels at <br /> Brian C.Wourm, <br /> Greg R.Enation the project site. <br /> Felipe lovwa <br /> Ryon A.Schahld For commercial properties,the city's noise ordinance limits noise levels at any point outside the <br /> Also 1.S`h.f.r property plane to 70 dB' (Section 9.04.040).When a commercial property is adjacent to residential <br /> Abner E.M°rol.s <br /> oto property, it provides a limit of 60 dB at any point outside the property plane between the hours of <br /> AellionSteve F t«br 10:00pm to 6:00am(Section 9.04.035). <br /> Kenneth tion <br /> aloe M.wok LIED GA <br /> Korben.M Moa. <br /> Jordon t Roberts <br /> %bah.M.Roth <br /> Bryce M Graven <br /> Wei P.Reding <br /> Lauren °°elOh' ' dB(Decibel)—A unit that describes the magnitude of a sound with r <br /> Heather A.Salt" espect to a reference sound level near the threshold of <br /> D«E Garciahearing.Decibels are based on a logarithmic scale and therefore cannot be added arithmetically.All sound levels listed in <br /> Cam«m.F.Spooled this report are A-weighted(often denoted as'dBA). <br />