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F � <br /> Work Plan <br /> Stewart's Beacon <br /> Project No.(n-17.1.2 <br /> - March 12,1990 <br /> Page: 11 <br /> 5.8 Cross Containjudon Psever tion <br /> An gain <br /> pling equipment(split spoon!ampler,brass tubes,bailer,do pumps)and auger. <br /> (drilling rod,drilling bits,dr auger)will be thoroughly steam cleaned before being used <br /> send between uses. Plastic gloves will be worn while collecting and cher <br /> samples. 11g raged between all <br /> 5.9 Chain of Custody <br /> Chain of Custody (CofC) fauns are legal documents used to track the handling of <br /> samples. All dates, times,persons,and their companies are listed from the time the <br /> sample Is collected to its ultimate disposal. A CofC form will be filled out for all <br /> samples collected. The CcfC is tracked to ensure sample integrity. <br /> 5.10 Sample Analysis <br /> All samples will be taken to.a California certified laboratory at the end of each <br /> - sampling day. if soil samples are collected, they will be analyzed for aromatic <br /> rss hydrocarbons by EPA method 8020 and TPH-gasoline by EPA modified method 8015. <br /> Water samples will be analyzed for the same compounds utilizing EPA method 602. <br /> 5.11 Detection Limits <br /> The detection limit for 602 ranges from 0.3 to 0.6µg/1 in water,5 <br /> and gasoline is OData Reduction mg/l in water and 2.5 mg/kg in soil samples. jig/kg in soil samples. -, <br /> 5.12 <br /> on <br /> Analytical data will be integrated with the geological data gathered during the field <br /> investigation. Cross sections and plan view contour maps will be prepared to illustrate <br /> the distribution of soil contamination. These cross sections and maps will be the basis <br /> for interpreting the extent of contaminadon and for developing a remediation plan. <br /> 6.0 HEALTH AND SAFE Ty PROGRAM <br /> _ Geological Technics has incorporated the following health and safety precautions while <br /> working on sites containing unidentified hazardous waste. Once the nature and extent of <br /> contamination has been determined, additional work on site will be met with the proper-__----_.___—.—___.___.— <br /> precautions. _pe p —� <br />