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Introduction URS Corp. (URS) conducted two noise-level data collection and sampling events in conjunction with operational activities for Premier Environmental Services, Inc. (Premier) at the Mundy Lane, Lodi, CA facilities. This report provides the results, analysis, conclusions and recommendations from those sampling events. Methodology It should be noted that sampling occurred during"normal' day and night activities when the facilities mobilized and demobilized for offsite projects and during a"heavy" activity day that included the delivery of material necessary for the operation of the business. The surveys were conducted for a minimum of 24-hours during each sampling event. The numerical results of our surveys are included as an attachment to the text of this report. The data was collected using two types of noise dosimeters: a Quest M-27 and a Quest Micro-15. Both of these instruments meet ANSI SIA-1983 Type 2, ANSI S 1.25-1978 and IEC 651 Type 2A specifications and were calibrated by use of the factory supplied external calibrator prior to use in the field. Each unit was set for reading Community Noise Equivalency Levels (CNEL) as follows: "A"weighting, 30-126 dB range, 90 dB Upper limit, Slow time constant, 85 dB Criterion, 3dB exchange rate, and 24 hour clock. The Quest Electronics M-27 noise logging dosimeter was used for accumulating data for set periods of time. The Quest M-27 noise logging dosimeter is a microcomputer-based sound analyzing instrument for accumulating, displaying and sending data to a printer or computer. The M-27 was used as an area monitor for the survey events to accumulate various time ranges of data. The Micro-l5 was use primarily as a hand-held unit capable of reading immediate sound pressure levels at various locations around the property. The M-27 was used on, December 12, 2000, starting at 7:00 a.m, and ending at 10:58 a.m. on December 13, 2000 to obtain a full day worth of data. The M-27 was used again on January 15 and 16, 2001, from 7:30 a.m. on January 15 to 7:47 a.m. on January 16, 2001 to get data that was related to the daily activities in addition to a scheduled delivery of materials via an "18-wheeler". This data was collected to serve as representation of the sound pressure levels during "full facility use". During the December 12, 2000 sampling event the M-27 dosimeter was placed at the boundary of the facilities property and the neighboring property near the entrance to the drive leading to the rear storage yard at a height of approximately 6-feet orientated about 70° horizontally. This location was directly adjacent to the gravel driveway and approximately 20 feet west of the primary noise receptor location. The meter location, adjacent to the gravel driveway and near the Mundy Lane roadway, should be noted as it can be concluded that traffic noise Noise Survey Report Premier Environmental Services, Inc 01/31/01