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City of Santa Ana Noise Element California Government Code encourages each local government entity to implement a noise element as part of its general plan. In addition, the California Governor's Office of Planning and Research has developed guidelines for preparing noise elements, which include recommendations for evaluating the compatibility of various land uses as a function of community noise exposure. The City of Santa Ana has established a Noise Element as part of the Santa Ana General Plan.17 The Noise Element works to ensure that the City limits the exposure of the community to excessive noise levels in noise -sensitive areas and at noise -sensitive times of day. Specifically, the City has established standards for noise levels (Community Noise Equivalent Level [CNEL], dBA) for land uses as displayed in Table N-1. Additionally, all residential uses should be protected with sound insulation over and above that provided by normal building construction when constructed in areas exposed to greater than 60 dBA CNEL. Sound levels resulting from a project that exceed the standards listed in Table N-1 or that cause the existing conditions to increase above these standards would typically be considered to be impacting the surrounding community. TABLE N 1. INTERIOR AND EXTERIOR I E STANDARDS Cateecries " Use Cat e-gones I nterio' Exterio r' i r.� le-fri d u p Iex m u I t- f�mil� r 45 dB CNEL51 65 dB CNEL I r istitutiinna Hospital, school classroom/ 45 dB CN EL 65 dB CNEL pal ayg rou n d Religious facility, library 45 dB CN EL - Open �p f Pa r k5 -- 65 dB -CNEL Notes 1. 1 r terior areas, to incl A el. h u t not Ii rn tad to bed roar n s, ha thtiroo ms, k itch-e ns, I iw ing morns, di ni r~ g roo r ns, a riva�e offic-es, and conference morns 2. Exteri or area s shal I mea n _ p rivate ya rd s of s-ngle fa mi ly ho rr es, pa rk plicn is a reasr school playgrounds, COMM on area P rivr3tie operi Spa cei 5uch as atriL,ms rorl ba lconie5, 0,aII be excluded from exterior noi�,N requirements p rovided s u ff islent cocamon area is irr-cl u ded with in the p roject. 3. 1 rater o e noise I aval eeq u i re meats assurin a a r-1 osad-w ind Dw ca n di don. M Pchan ical oe nti latio n syste rn c ; at el-r r i-gans (a- nal u ra l venti ladon s h a 11 be provi ded per Ch a pte r 12 of the U r iform Bu it c i r & code, a s necessa ry Figure 4. Noise Standards from the Noise Element. Source: Noise Element, Santa Ana General Plan, Final, April 2022. City of Santa Ana Noise Ordinance The City of Santa Ana regulates noise emissions via the Santa Ana Municipal Code, specifically Chapter 18, Article 6 (Noise Control).18 The noise ordinance establishes that it is unlawful for any person at any location within the City of Santa Ana to create any noise, or to allow the creation of any noise on property owned, leased, occupied, or otherwise controlled by such person, which creates a sound level 17 https://www.santa-ana.org/documents/april-2022-general-plan-noise-element/ 1s https://library.municode.com/ca/santa_ana/codes/code_of ordinances?nodeId=PTIITHCO_CH18HESA_ARTVINOC O 12/14