Laserfiche WebLink
9 � <br /> 1 <br /> •`1 <br /> ing <br /> ril <br /> at <br /> ch <br /> will be decontaminated pronrto materialscwilld bel cleaned aas <br /> hole' Wel rie�nto ri stallation. <br /> necessary, P <br /> will be <br /> Equipment and well material decontamination <br /> tion <br /> conducted on an impermeable surface and all decontamination <br /> effluent will be conaaminaquip <br /> d surfaces <br /> team a(sthe ecleaner, <br /> will be thoroughly decon <br /> The equipment will be placed on a drying rack for air <br /> drying. The decontamination water will stored in containers <br /> certified for hazardous materials storage and disposed of in <br /> an approved manner. <br /> f <br /> to be used or Pesticides and organic <br /> Sample equipment <br /> ox <br /> analysis will be washed in a nonphasphatwad detergent <br /> followed nby <br /> or equivalent) and rinsed with tap �i tent <br /> deionized water and finally with acetone. If the equip <br /> is for metals analysis, the initial tap water and conducted <br /> with 0.1 N nitiic acid followed by <br /> water. <br /> 7•0 Field Equipment calibration and Maintenance <br /> The following measuring equipment may be used during the <br /> ation. Equipment is grouped by field <br /> Remedial Investig <br /> ures and frequency are listed <br /> activity. Calibration proced <br /> for each piece. <br /> Soil Borings and Well Dimeasipns-Steel and coated cloth <br /> tape. Calibration: none. <br /> Water Level Measurements in Wells- Steel surveyors tape. <br /> e <br /> Calibration: manufacturr supp <br /> lied temperature correction <br /> will be applied as applicable for field cainst steel <br /> Electrical well sounders. Calibration: check a9 <br /> surveyor's tape. <br /> Organic Vapors- Photoianization detector. Calibration: <br /> Daily field Calibration using a isobutylene standard as per <br /> manufacturers instructions. <br /> Groundwater pit Measu�t- Digital pH meter. Calibration: <br /> standard pH solutions of 4, 7, and 10 will be anufacturers <br /> daily field calibration according <br /> instructions. <br /> Electrical conductivity meter. <br /> Electricalt_ _ it Conductiv - periodically <br /> Calibration• factory-calibrated annually and <br /> calibrated against laboratory Prepared standard calibration <br /> solution. <br /> Water <br /> Temperature- Mercury or digital thermometers. <br /> Calibration: factory-calibrated once. <br />