Acoustical Analysis 062826 resubmission 4901 2414 2009 v1

Acoustical Analysis of Site Sound Emissions Proposed Mavis Tire Center #2296 - West Orange, NJ 28 June 2026 Page 2 vehicles, such as an impact wrench. Steady sound is produced by rooftop HVAC equipment. Patron activity sound is generally not considered the responsibility of the property owner. Local and State noise codes regulate site sound emissions. West Orange Township discusses noise in §4-4: Noise. This code section is qualitative in nature, generally prohibiting excessively loud and disturbing noise; no quantitative limits are given. The State of New Jersey Noise Control Regulation, found at N.J.A.C. 7:29, generally requires that steady sound from commercial or industrial properties contributes no more than 65 dB(A) at or within the property line of any residential or commercial receptor. During the nighttime hours (2200-to-0700 hours), the limit drops to 50 dB(A) at residential receptors, while the limit for commercial receptors remains 65 dB(A). There are no limits for industrial receptors. Note the daytime code limit is designed to protect speech communication, whereas the nighttime code limit is designed to mitigate sleep disturbances. The State regulation also provides limits in octave frequency bands that correspond to the 65 dB(A) and 50 dB(A) limits. The frequency bands cover the audible spectrum, from low- pitched sounds to high-pitched sounds; the limits are more permissive at lower frequencies because human hearing is less sensitive at low frequencies. In addition, impulsive noise, which is any noise less than one second in duration, is limited to 80 dB(A) measured using a sound level meter’s fast response, regardless of receptor type or time of day. It should be noted that regulatory limits apply at or within the nearest receptor property line. No limit applies at vacant properties or intervening right-of-way corridors that accommodate railroads, rivers, or roads. As stated above, regulatory limits apply at or within the property line of the receptor. Enforcement guidelines issued by the State* provide further direction indicating that compliance measurements should be made at the location of the affected person. This is defined as a location where recreation, repose, and conversation may reasonably occur. In other words, it is most appropriate to evaluate site sound where a complaint may reasonably occur, such as at upper-story

a location where recreation, repose, and conversation may reasonably occur. In other words, it is most appropriate to evaluate site sound where a complaint may reasonably occur, such as at upper-story window elevations or at locations 5 feet above grade within landscaped and/or hardscaped residential property areas (e.g. lawns, decks, pools, patios, etc.). No limits apply at intervening roads or rights- of-way. Exceedance of code limits without a formal complaint does not automatically result in a noise code violation. Professional experience is often relied upon to determine the likelihood of a noise complaint. In summary, Township noise ordinances call for minimization of noise disturbances. Meeting State noise limits accomplish this. Therefore, OAA used State noise code limits as project noise goals. * Guidelines for the Investigation of Noise Complaints Pursuant to the State of New Jersey Noise Control Regulation (N.J.A.C. 7:29) and the Model Noise Control Ordinance, 14 January 2025.