SR0082985_SSNL - Laserfiche WebLink

Home Browse Search

4.6 – Noise Draft Environmental Impact Report February 2021 14800 W. Schulte Road Logistics Center 4.6-3 4.6.1.2 Noise-Sensitive Land Uses Land use types considered to be noise-sensitive include residences, colleges, schools and universities, churches, libraries, hospitals, rest homes, long‐ term medical or mental health care facilities, or other places where an expectation of relative quiet is customary. 4.6.1.3 Existing Noise Levels The Project site is located at 14800 W. Schulte Road in San Joaquin County. The Project site is adjacent to the southerly limits of the City of Tracy and is within the City of Tracy’s Sphere of Influence. The Project site is approximately 37.7 acres, with a Project size of 678,913 square feet. The Project site is currently vacant but was formerly used as a biomass electrical generation facility, which was decommissioned and demolished in 2019. The Project site is bounded by West Schulte Road and agricultural uses to the north, Quality Road and agricultural uses to the east, manufacturing/warehouse use to the south, and warehouse/distribution use to the west. Ambient noise measurements were conducted on October 14, 2020 , at or adjacent to nearby noise-sensitive land uses. Table 4.6-1 provides the location, date, and time the noise measurements were taken. The noise measurements were conducted using a Larson Davis Model 831 sound level meter equipped with a 0.5-inch, pre- polarized condenser microphone with pre-amplifier. The sound level meter meets the current American National Standards Institute standard for a Type 1 (Precision) sound level meter. The accuracy of the sound level meter was verified using a field calibrator before and after the measurements, and the measurements were conducted with the microphone positioned approximately 5 feet above the ground. Six short-term noise measurement locations (ST) that represent existing sensitive receivers were selected near the Project site. These locations are depicted as receivers ST1–ST6 in Figure 4.6-1, Noise Measurement Locations. The measured energy-averaged (Leq), minimum (Lmin), and maximum (Lmax) noise levels are provided in Table 4.6-1. The field noise data sheets are included in Appendix E-1. The primary noise sources at the sites identified in Table 4.6- 1 consisted of traffic along adjacent and distant roadways; distant barking dogs represented occasional secondary noise sources. As shown in Table 4.6-1, the measured sound levels ranged from approximately 54 dBA Leq at ST2 to 65 dBA Leq at ST1. Table 4.6-1. Measured Noise Levels Receptor Location Date Time Leq (dBA) Lmin (dBA) Lmax (dBA) ST1 West of Project site, adjacent to CAL FIRE Station 26 at 16502 W. Schulte Road 10/14/2020 2:42 p.m.–2:52 p.m. 64.6 49.2 76.4 ST2 West of Project site, adjacent to residence at 25730 Hansen Road 10/14/2020 2:13 p.m.–2:23 p.m. 54.3 44 65.6 ST3 East of Project site, adjacent to residence at 25613 South Lammers Road 10/14/2020 3:27 p.m.–3:37 p.m. 58.3 44.1 68 ST4 East of Project site, adjacent to residence at 25700 South Lammers Road 10/14/2020 3:46 p.m.–3:56 p.m. 58.3 47.2 69.3