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AW <br /> TfeaftviKmb <br /> STANDARD OPERATING PROCEDURE FOR <br /> GROUNDWATER MONITORING WELL SAMPLING <br /> PURPOSE <br /> The purpose of this standard operating procedure is to delineate protocols for the collection of <br /> groundwater samples from monitoring wells using normal and slow purging technique. <br /> FIELD SUPPLIES <br /> • Specific Conductivity meter - or YSI 3800 <br /> • Thermometer (optional) - or YSI 3800 <br /> • pH meter or YSI 3800 <br /> • Flow-through-cell, if dissolved oxygen (DO) and oxidation reduction potential (ORP) <br /> measurements are needed. <br /> • Water- level indicator <br /> • Peristaltic, bladder, or submersible positive -displacement pump with adjustable discharge <br /> rate <br /> • Sample bottles, labels, sample cooler, ice, chain-of-custody forms <br /> • Logbook or Field Investigation Daily Forms and Groundwater Sampling Forms <br /> • Teflon or teflon- lined polyethylene tubing and T fittings, hose clamps <br /> • Photoionization Detector (PID) Organic Vapor Analyzer <br /> • PPE <br /> • Graduated cylinders <br /> • Generator <br /> • Laboratory contact name and number <br /> • List of wells with historic COC concentrations. <br /> • Decontamination equipment (buckets, nor-phosphate detergent, and distilled water) <br /> • Calibration fluids <br /> 2597. 1 LDGD Page 1 of December 2004 <br />