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1 <br /> III INC <br /> ' 8 Complete the chain-of-custody appropriately, and record sample identification, <br /> sample depth, purge volume, vacuum pressure, purge time, and sampling time <br /> on Soil Gas Sampling Data Sheet A blank example is attached as Table 1 <br /> 1 <br /> 9 Once each day, a soil gas split sample shall be collected for laboratory analysis <br /> ' as described in the Onsite Laboratory Analyses Procedures section of this <br /> Appendix <br /> 10 WZI will ensure that the soil gas contractor shall store "clean" probes in an <br /> ' area separate from the "used" probes Contractor shall provide sufficient <br /> probes such that none are reused without cleaning Contractor shall clean all <br /> ' probes prior to use by steam cleaning or hot-water/high-pressure wash <br /> Contractor shall number each probe and note its number and internal volume <br /> ' on the data sheet for the sampling location where it was used <br /> Contractor shall store "clean" adapters in an area separate from the "used" <br /> adapters to eliminate possible contamination of the clean probes Contractor <br /> shall provide sufficient adapters such that none are reused without cleaning <br /> 1 Contractor shall number each adaptor and note its number on the data sheet <br /> for the sampling location where it was used <br /> ' 11 A log book will be maintained which contains Soil Gas Sampling Data Sheets <br /> P g <br /> ' filled out for each location The attached Data Sheet may be copied and used <br /> to comply with this recording requirement The following information shall be <br /> ' recorded at each site <br /> t1) Time (military notation) and weather <br /> 2) Ambient air and soil gas temperature <br /> 3) Sample number <br /> . 4) Sampling depth <br /> APPENDIX III <br /> ' 12270020 025 10 <br />