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Home My WebLink About2019.07.03 Demolition Plan Backup - Noise ReportActivity Equipment Type Qty 1. Arbors Condos (North Side of Ivy Hill Crescent)CEQR Equipment (50 ft)Level @ 50 ft1 New Distance (to fence)Shielding Constr Leq @ Receptor Existing Leq (Based on measured values)Overall Constr Leq Total Leq Increment Demolition High Reach Excavator 1 Excavator 81 255 10 57DemolitionGrapple/Bucket/Shear 2 Grapple (on backhoe)84 255 10 60DemolitionTractor1Tractor8025510563. Arbors Condos (South Side of Ivy Hill Lane)Demolition High Reach Excavator 1 Excavator 81 453 10 52DemolitionGrapple/Bucket/Shear 2 Grapple (on backhoe)84 453 10 55DemolitionTractor1Tractor80453105114. Blind Brook School Football Field and TrackDemolition High Reach Excavator 1 Excavator 81 862 5 51DemolitionGrapple/Bucket/Shear 2 Grapple (on backhoe)84 862 5 54DemolitionTractor1Tractor8086255015. Village Hall, Rye Brook Police Department, Rye Brook Fire DepartmentDemolitionHigh Reach Excavator 1 Excavator 81 380 0 63DemolitionGrapple/Bucket/Shear 2 Grapple (on backhoe)84 380 0 66DemolitionTractor1Tractor8038006216. Blind Brook School Baseball FieldDemolition High Reach Excavator 1 Excavator 81 439 5 57DemolitionGrapple/Bucket/Shear 2 Grapple (on backhoe)84 439 5 60DemolitionTractor1Tractor80439556 1 Noise levels of equipment are derived from the CEQR Technical Manual (Chapter 22, "Construction", Table 22-1) 5.958.1 58.1 64.0 60.9 62.7 57.7 70 59 2.8 2.2 2.6 5.4 59 62.9 61.2 72.6 64.4 57.1 69.2 CEQR TECHNICAL MANUAL 22 - 11 MARCH 2014 EDITION CONSTRUCTION 28 of Title 15 of the Rules of the City of New York, “Citywide Construction Noise Mitigation.” The val- ues from Local Law 113 of 2005 represent the maximum allowable noise emission levels for specific pieces of construction equipment at construction sites in New York City, and the values from Chapter 28 are what the Department of Environmental Protection (DEP) uses to identify equipment that may be the cause for a noise complaint. Construction equipment with maximum noise emission levels less than those shown in Table 22-1 is available. Guidance on quieter available construction equipment and quieter construction procedures is provided in DEP Notice of Adoption of Rules for Citywide Con- struction Noise Mitigation, as well as from the equipment manufacturers. Noise levels from construc- tion may also be reduced through the use of perimeter noise barriers, temporary portable barriers, shrouds, shields, enclosures, etc. These path controls should be investigated where feasible. Absent information about specific equipment noise characteristics, the maximum values shown in Table 22-1 should be assumed, and these values may be adjusted for distance assuming a 6 dB(A) attenuation per doubling of distance. At distances of less than 25 feet, specific equipment noise data should be used for distance attenuation. Where detailed construction noise analysis is necessary, construction noise analysis modeling meth- odologies have been developed by a variety of federal agencies including the Federal Highway Admin- istration (FHWA), Federal Transit Administration (FTA), and U.S. Environmental Protection Agency (USEPA). The Roadway Construction Noise Model (RCNM) is the FHWA model for detailed construc- tion noise analysis, and the maximum noise emission levels and the equipment usage factors in Table 22-1 are based on the RCNM construction equipment library. The CadnaA or SoundPLAN model can al- so be used for detailed construction noise analysis. If these models are used, absent project specific information, construction equipment noise emissions levels and usage factors from the RCNM could be utilized for analysis. In general these models, which should be applied to each phase of construc- tion (e.g., clearing, foundation, erection, finishing, landscaping) separately, account for the noise emission of each particular piece of equipment, the number of pieces of equipment on the site, a us- age factor which accounts for the fraction of time the equipment is being used, topography and ground level effects, source-receptor distance, and shielding in calculating a maximum Leq(1) at the closest noise-sensitive receptor to the proposed project. To determine potential significant impacts caused by the construction activity, these levels are compared to the No-Action noise levels and to applicable standards. Table 22-1 Noise Emission Reference Levels (A-weighted decibels with RMS "slow" time constant) Equipment Description Usage Factor (%) Lmax @ 50 Feet All Other Equipment > 5 HP 50 85 Auger Drill Rig 20 85 Backhoe 40 80 Bar Bender 20 80 Blasting N/A 94 Boring Jack Power Unit 50 80 Chain Saw 20 85 Clam Shovel (dropping) 20 93 Compactor (ground) 20 80 Compressor (air, less than or equal to 350 cfm) 40 75A Compressor (air, greater than 350 cfm) 40 80A WARNING: These printed materials may be out of date. Please ensure you have the current version that can be found on www.nyc.gov/oec. CEQR TECHNICAL MANUAL 22 - 12 MARCH 2014 EDITION CONSTRUCTION Concrete Batch Plant 15 83 Concrete Mixer Truck 40 85 Concrete Pump Truck 20 82 Concrete Saw 20 90 Crane 16 85 Dozer 40 85 Drill Rig Truck 20 84 Drum Mixer 50 80 Dump Truck 40 84 Dumpster/Rubbish Removal 20 78 Excavator 40 85 Flat Bed Truck 40 84 Front End Loader 40 80 Generator 50 82 Generator (< 25 KVA, VMS signs) 50 70 Gradall 40 85 Grader 40 85 Grapple (on Backhoe) 40 85 Horizontal Boring Hydr. Jack 25 80 Hydra Break Ram 10 90 Impact Pile Driver 20 95 Jackhammer 20 85 Man Lift 20 85 Mounted Impact Hammer (Hoe Ram) 20 90 Pavement Scarafier 20 85 Paver 50 85 Pickup Truck 40 55 Pneumatic Tools 50 85 Pumps 50 77 Refrigerator Unit 100 82 Rivet Buster / Chipping Gun 20 85 Rock Drill 20 85 Roller 20 85 Sand Blasting 20 85 Scraper 40 85 Shears (on Backhoe) 40 85 Slurry Plant 100 78 Slurry Trenching Machine 50 82 WARNING: These printed materials may be out of date. Please ensure you have the current version that can be found on www.nyc.gov/oec. CEQR TECHNICAL MANUAL 22 - 13 MARCH 2014 EDITION CONSTRUCTION Soil Mix Drill Rig 50 80 Tractor 40 84 Vacuum Excavator (Vac-truck) 40 85 Vacuum Street Sweeper 10 80 Ventilation Fan 100 85 Vibrating Hopper 50 85 Vibratory Concrete Mixer 20 80 Vibratory Pile Driver 20 95 Warning Horn 5 85 Water Jet Deleading 20 85 Welder / Torch 40 73 A. Notes: As per Local Law 113 of 2005, §24-228(a)(1) Construction, Exhausts, and other Devices, “Sound, other than impulsive sound, attributable to the source or sources, that exceeds 85 dBA as measured 50 or more feet from the source or sources at a point outside the property line where the source or sources are located or as measured 50 or more feet from the source or sources on a public right-of-way” is prohibited. A Indicates the value is from Local Law 113; other values are from 15 RCNY §28-109, Appendix. Sources: Local Law 113 and the New York City Department of Environmental Protection Notice of Adoption of Rules for Citywide Construction Noise Mitigation: 15 RCNY 28-109, Appendix. Construction noise is regulated by the New York City Noise Control Code and by USEPA noise emission standards for construction equipment. These local and federal requirements mandate that certain classifications of construction equipment and motor vehicles meet specified noise emissions stand- ards; that, except for special circumstances, construction activities be limited to weekdays between the hours of 7 AM and 6 PM; and that construction material be handled and transported so as not to create unnecessary noise. A statement of adherence to these requirements is often included. OTHER TECHNICAL AREAS For the following technical areas--“Land Use, Zoning, and Public Policy,” “Neighborhood Character,” “Socioeconomic Conditions,” “Community Facilities,” “Open Space,” “Historic and Cultural Resources,” “Natural Resources,” “Hazardous Materials,” and “Sewer and Water Infrastructure”—the guidance in the respective chapters for each technical area should be followed in conducting the preliminary as- sessment, determining whether a detailed analysis is warranted, and if so, conducting the detailed analysis. In general, the determination of the significance of construction impacts is based on the same criteria as described for each relevant technical area of this Manual. For example, if a detailed air quality analysis is conducted for a project’s construction activities, the criteria for a significant impact in Chapter 17, “Air Quality,” should be used. Significant construction impacts may often be mitigated in the same ways as other impacts in the particular technical area of concern. Such mitigation measures are described in the different technical chapters of this Manual and, de- pending on the impact, may also include such measures as alternative scheduling of construction phases. Measures that are appropriate specifically for construction impacts are described below: 400. DETERMINING IMPACT SIGNIFICANCE 500. DEVELOPING MITIGATION WARNING: These printed materials may be out of date. Please ensure you have the current version that can be found on www.nyc.gov/oec.