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APPENDIX B FIELD EXPLORATION METHODS G-Logics performed subsurface soil and groundwater sampling during the assessme_.t conduoted on the subject property. The sampling activities were conducted in general accordance with Ecology's guidelines and regulations. Health and SaCety Plan In accor�ance with the Occupational Safety and Health Administration (OSHA) and state regulations, a site-specific Health and Safety Plan was developed for the fieVd activities completed at the subject property. All field personnel reviewed the plan rand implemented the prncedures while conducting the on-site field activities. Undergre��nd Utility Clearance Before conducting the subsurface characterization, G-Logics contacted a service that notifies public utilities of proposed subsurface investigations. Additionally, on-site private utilities were located by a private locating company to identify on-site utilities. Consequently, the be!ow-grade utility locations were identified by marking their inferred location on the groun� surFace. This information was used to aid in identifying the locations of our sampling locations. Quality Assurance Quality Control Quality Assurance/Quality Control (QAlQC) for the presented scope of work included generally accepted procedures for sample collection, storage, tracking, and documentation. All sampling equipment was washed with a detergent wash and tap water rinse before the collection of the samples. All samples were labeled with a sample number, date, time, and sampler name, and were stored in an ice chesl containinb fr;,zen "blue ice". Appropriate chain-of-custody documentation was completed. oi-oios-cno.a« Copyright 2001 GLogics, lnc. Page B•1 oB-0