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Kennedy/Jenks Consultants <br /> like any other sample. Field blank samples are to be sent blind to the laboratory (i.e., not <br /> identified as a field blank). Record in the field notebook the collection of any blank sample <br /> (rinsate, transfer, trip). The types of field blank samples are discussed below. <br /> a. Rinsate blank samples. If rinsate field blank samples are required, prepare the sample by <br /> pouring deionized water over, around, and through the various reusable sampling <br /> implements contacting a natural sample. Rinsate blanks need not be collected when <br /> dedicated sampling equipment is used for purging and sampling the well. Rinsate blank <br /> samples are to be analyzed for the same parameters as the environmental samples. <br /> b. Transfer blank samples. Transfer blank samples are routinely prepared when no rinsate <br /> blank samples are collected. (The purpose of a transfer blank sample is to monitor for <br /> entrainment of contaminants into the sample from existing atmospheric conditions at the <br /> sampling location during the sample collection process.) A transfer blank sample is <br /> prepared by filling a sample container(s) with distilled or deionized water at a given sampling <br /> location. Transfer blank samples are to be analyzed for the same parameters as the <br /> environmental samples. <br /> c. Trip blank samples. Trip blank samples are submitted for VOC analysis to monitor for <br /> possible sampling contamination during shipment as volatile organic samples are <br /> susceptible to contamination by diffusion of organic contaminants through the Teflon-faced <br /> silicone rubber septum of the sample vial. Trip blank samples are prepared by thelaboratory <br /> by filling VOA vials from organic-free water and shipped with field sample containers. Trip <br /> blank samples accompany the sample bottles through collection and shipment to the <br /> laboratory and are stored with the samples. It is suggested that a trip blank sample be <br /> included in each cooler of samples submitted for VOC analysis. <br /> D.6 Investigation-Derived Waste (IDW) Management <br /> Purge water is to be contained onsite in an appropriate labeled container for disposition by the <br /> client unless other project-specific procedures are defined. Other investigation-derived wastes, such <br /> as personal protective equipment, are to be properly handled and disposed. Preferably, PPE IDW <br /> should also be containerized and left onsite for disposal by the client. As a matter of practice, any <br /> waste, or potential waste, generated onsite, should remain onsite. Refer to the IDW SOG. <br /> D.7 References <br /> ASTM. 1999. Designation: D 6452 - 99. Standard Guide for Purging Methods for Wells Used for <br /> Ground-Water Quality Investigations. Copyright ASTM, West Conshocken, PA. <br /> ASTM International. 2002. Designation D 6771 —02. Standard Practice for Low-Flow Purging and <br /> Sampling for Wells and Devices Used for Ground-Water Quality Investigations. Copyright ASTM <br /> International, West Conshocken, PA. <br /> U.S. Environmental Protection Agency. 2001. Environmental Investigations Standard Operating <br /> Procedures and Quality Assurance Manual(EISOPQAM). Dated November 2001. U.S. EPA <br /> Region 4. <br /> Monitoring Well Installation Work Plan, D-7 <br /> Barrel Ten Quarter Circle Land Company, Escalon, California <br /> \\SFO\Groups\I S-Group\Admi n\Job\03\030118.27_BTQ C LC\09-Reports\M W-Install-W Pln',Appen di x\APP_D.doc <br />