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of 30-Inches. The hammer olows required to drive the 3-Inch sampler,converted to equivalent standard penetration counts(N-value). The soils will be classified In accordance with the procedures of the Unified Soil Classification System(USCS). At each sampling Interval,or change In Ilthology,one brass or stainless steel llner wlll be collected for laboratory analysis. This sample will be covered with aluminum foil and sealed with plastic caps. A completed sample label will be placed on the liner. Chaln-of-custody forms will be completed In the field and the samples will be placed and transported in insulated containers at a temperature of approximately 4°C to a State Certified Analytical Laboratory. All samples will be collected In such a manner as to minimize the volatilization or oxldatirrt of a sample due to agitation/mixing upon handling. At each sampling Interval,the soil from one of the brass liners will be placed In an airtight glass Jar and allowed to equllibriate,after which the air In the Jar will be monitored using an OVA. If significant organic vapors are detected with the OVA the appropriate brass sample liners will be saved for laboratory analysis. Other field screening steps may be used for other analytes, EQUIPMENT CLEANING 1. Downhole equipment(augers,well casing,sampler)will be steam cleaned prior to each boring. 2. Sampling equipment(sp!it-spoon driver sampler)will be washed with a brush Ina solution of TSP and potable water,then rinsed with potable water followed by rinsing with distilled water prior to each drive sample. Rinse water will be collected and stored In metal and/or plastic drums on-she. 3. All downhole equipment,and vehicles(when warranted)will be steam cleaned prior to leaving site. 4. All rinse water will be collected and translerred Into metal and/or plastic drums and stored on-site until - laboratory analysis results are made available to determine water dlspositicn. w SPOILS AND CUTTINGS Soil cuttings and other hazardous residuals from the drilling operations will be contained In labeled steel drums on-she until laboratory analysis determined material deposition, The final deposition of the material Is the responsibility of the client,GPI will Instruct the client of the necessary permits and dispositions procedures based on laboratory analysis results. Soil material determined to be contaminated,are required to be removed by a�11 an at o s wast an approved landfill, Non-contaminated soil material can be transported to County of Sonor.a Cot?ntKLan fill or buried on site,upon approval and with documentation, by this agent Wastes that are de o be hazardous must be properly disposed of and cannot be stored on site for more than 90 days. SAMPLE HANDLING/QA/QC ELEMENTS _., �gmnit3.4,�ellnd All sample containers will be labeled In the fleld. All sample labels will contain the following;