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ES-RR&IH-001 <br /> ® Stantec Soil Sampling SOP Page 6 of 11 <br /> Rev. 2 Jun 2016 <br /> - Name of drilling company; <br /> - Make, model, type, and size of drilling and sampling equipment used; <br /> - Date and time of start and end of drilling <br /> - Name of geologist(s) logging boring, <br /> - End of boring depth, and, <br /> - Depth to water (if encountered). <br /> 2. Each log is to begin with a description of the surface, (i.e., native, paved with <br /> asphalt, paved with concrete, and such). If any concrete is cut to open the hole, <br /> the thickness will be noted. <br /> 3. Every foot will be accounted for, with no gaps. If an interval is not sampled it will <br /> be noted. If an attempt is made to sample an interval, but there is no recovery, it <br /> will be noted. <br /> 4. Complete construction details are to be detailed for each well on a standard <br /> well construction form. Construction details should include: <br /> - A description of the type and length of casing i.e., 20' of 2" inner diameter (ID) <br /> Schedule 40 PVC casing; <br /> - Length and depths of the top and bottom of the screened interval; <br /> - Screen slot size; <br /> - Depths of the top and bottom of the filter pack; <br /> - Filter pack materials and sand size; <br /> - Depths and types of bentonite seals; <br /> - Detail of the use of grout; and, <br /> - Detail of the surface completion (i.e., stick up, flush-mounted). <br /> 5. The number of bags of sand, bentonite, and grout used will be counted. These <br /> numbers will be compared daily with the driller's daily report. <br /> Soil cuttings will be stockpiled on 4-mil thick plastic sheeting or drummed. The cuttings <br /> and other investigation-derived waste will be managed in accordance with the work <br /> plan or client-specific directives. <br /> When sampling for volatile organic compounds (VOCs), use USEPA Method 5035. <br /> Method 5035 requires ample preservation in the field at the point of collection. The <br /> preservative used for the low concentration soil method (0.5 to 200 pg/kg) is sodium <br /> bisulfate and the preservative used for the medium/high concentration soil method <br /> (>200 pg/kg) is methanol. This field collection and preservation procedure is intended to <br /> prevent loss of VOCs during sample transport, handling, and analysis. The holding time <br /> for VOC analysis is 14 days. <br /> 1. Use the lab provided plunger style sampler (T-handle, syringe with tool, or terra- <br /> core TIM sampler) to collect a 5g soil sample. <br /> 2. Unscrew the lid of the lab provided pre-preserved sodium bisulfate volatile <br /> organic analysis (VOA) vials and inject the 5g soil sample. <br /> THIS INFORMATION FOR AUTHORIZED COMPANY USE ONLY <br /> STANTEC CONSULTING <br />