Laserfiche WebLink
MEMM <br /> • �j RL:: - #�P <br /> During sampling, latex gloves will be worn to prevent cross- <br /> contamination with other samples. The disposable gloves will <br /> be discarded after collecting samples from each 16-inch <br /> sample drive. <br /> � Soil samples will be collected at five foot intervals, at <br /> i� changes in lithology and intervals of obvious contamination <br /> in order to develop a complete profile of soil contamination. <br /> The soil samples shall not be composited. Soil borings will <br /> extend through the entire interval of contaminated soil and <br /> will terminate if saturated soil interval is encountered. <br /> p 2. Sample Collection During Tank Removal <br /> Soil samples will be collected as soon as possible after <br /> removal of the tank. Where feasible, all preparations for <br /> soil sampling will be made prior to tank removal. Soil <br /> samples collected from a backhoe bucket or directly from the <br /> excavation floor will be collected in a thin-walled stainless <br /> steel or brass cylinder at least three inches long by one <br /> inch in diameter. From 3 to 24 inches of soil will be <br /> removed from the immediate surface area where the sample is <br /> to be taken and the cylinder then pounded- into the soil with <br /> a wooden mallet, bulk density driver, or other decontaminated <br /> driving device. leo head space will be present in the <br /> cylinder once the sample is collected. Care will be taken to <br /> avoid contamination of both the inside and outside of the <br /> cylinder as well as . its contents. During sampling, latex <br /> gloves will be worn to prevent cross contamination with other <br /> . ; samples. One pair of the disposable gloves will be dedicated <br /> to each sample collected. <br /> once the sample is collected, each end of the cylinder will <br /> be covered with aluminum foil and then capped with a <br /> `. � polyethylene lid, taped, and labeled. The sample will then <br /> be individually sealed in a ziplock bag and immediately <br /> placed in an ice chest co.:taining dry ice or frozen "blue <br /> ice" for delivery to a state certified laboratory. Sample <br /> identification, storage and transportation will be conducted <br /> ori as outlined in .the previous section. <br /> 3. Sampling from Soil Piles <br /> Soil samples will be collected and transported from excavated <br /> f_ material in the manner described in the previous section, <br /> — - <br /> however_, a backhoe will not be :,tilized. 1f composite <br /> ----- samples ara--aollectedr four-brass-cylinders -will--be-collected---- <br /> � f. for every 50 cubic yards of material to be sampled. The --- - - <br /> ;� samples will be composited by the state certified analytical <br /> laboratory personnel prior to testing. <br /> !, <br /> k <br />