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Soil Investigation Workplan June 5, 2015 <br /> 200 N. Beckman Rd. Paae 2 <br /> The sample tubes will be capped with Teflon@ and fitted with plastic end caps. <br /> Each tube will be marked and placed in a cooler on water ice at a temperature of <br /> 4 degrees Celsius (checked using a thermometer) pending transportation to <br /> Accutest Laboratories under chain of custody. Accutest Laboratories is NELAP <br /> Accredited by the California Department of Public Health, Environmental <br /> Laboratory Accreditation Branch, Certificate #08258CA. <br /> Soil samples will be collected continuously using a continuous 4-foot core sampler. <br /> Soil from each sampled interval will be screened for volatile organic compounds in <br /> the field with a portable photoionization detector (PID). A geologist will record <br /> PID readings, soil types (according to the Unified Soil Classification System), and <br /> other pertinent geologic data on borehole. Continuous core soil samples will be <br /> collected to identify subsurface lithology, potential staining and other sign of <br /> contamination at each of borehole location. In addition to visually classifying the <br /> soils, the geologist will carefully examine the core for such features as root-holes, <br /> fractures, mineralization, and thin micro-bedding. <br /> If no refusal, drilling will continue to 10 feet below ground surface <br /> (bgs). Proposed soil sampling locations is ident fled on Figure 1. Soil samples <br /> collected will be identified on the boring log. The supervising geologist will <br /> select soil samples collected every 2.5 ft for chemical analysis or other <br /> conditions observed in the field at the time of dril ing such as drilling refusal. <br /> After completion of sampling activities, the borings will be backfilled to <br /> surface grade with neat cement grout composed of one sack of Portland Type I/ <br /> II cement (94 lbs.) to approximately five gallons of potable water provided by <br /> the driller. Drilling and sampling equipment will be steam cleaned or <br /> thoroughly scrubbed with alconox solution followed by a distilled water rinse <br /> prior to being brought on site and between samplings. <br /> All drilling activities, sampling, and report will be supervised and/or prepared by a <br /> California-Registered Professional Geologist (#7503) and in accordance with <br /> procedures referenced within a Health and Safety Plan (signed in the field). <br /> Environmental and Remediation Services since 19921 <br /> A <br />