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December 23. 1999 <br />• APPENDIX C <br />STANDARD OPERATING PROCEDURE <br />FOR GROUNDWATER AND SURFACE WATER SAMPLING <br />C.I INTRODUCTION <br />Pcrge C'-1 <br />The purpose of this document is to define the standard operating procedure (SOP) for <br />collecting groundwater samples from wells at the American Soda, Yankee Gulch Sodium Lease. <br />This document describes equipment, field procedures, QA/QC, sample identification, labeling, <br />handling, and chain of custody procedures necessary to collect gr, undwater samples from wells and <br />piezometers.. Also included is a listing of sample containers, preservatives, and holding times <br />applicable to samples collected using this SOP. <br />C.2 EQUIPMENT <br />• Sample bottles and preservatives will be obtained from the analytical laboratory. Several <br />extra sample bottles will be obtained for use in the field or for QA/QC purposes. Distilled or de- <br />ionized water should be obtained from the laboratory or other source. <br />Equipment used during well evacuation may include: <br />- Well keys <br />- Electronic water level probe <br />- Assorted tools (knife, screwdriver, etc.) <br />- PVC and stainless steel bailers (bottom filling) <br />- Submersible pump <br />- Thermometer <br />- pH meter (with automatic temperature compensation) <br />- Specific conductivity meter <br />- Plastic squeeze bottle filled with distilled metal-analyte-free water <br />- Polyethylene or glass container (for field parameter measurements) <br />• - Chemical-free paper towels or Kimwipes <br />- Calculator <br />- Meld notebook <br />Agapito Associates, Inc. <br />