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APEX ENVIROTECH. 1111C. STANDARD ppF-RATING PROCEDURES Quarterly Monitoring Reports When practical,the groundwater sample should be collet when the water level to the vae1V recovers to at least s0 pe sop . 4rcent SAMPLE fDEiilTIFiCAT10N AND GNA1N- of its static,level 0F�CVST00Y PRaCE,DURESnsists of ether a"Teflon"baiter, The sampling equipment co with a'Teflon" bailer or stainless steel bladder pump rocedures ensure PVC bail lin system is dedicated tothe Is Pil,then sample identification and document amody p session from Madder it trio Sampling Y sam¢le integrity as well as dacumertt sample possession the baler Is usually"Tenon"but the bladder depending on the the time of collection to ultimate disposal Each sample a polypropylene bladder In general and dep g to the ob anal is,40-milldter glass,volable organic container submitted for BnRIY51s is Collectionlabeled sampeitittn mbar intended laboratory Ys a are used as sample number,date,time of same analysis(VOA)Mats,with'Teflon"septa, unique to the sample,any in-field measurements made, containers sampling methodology name(s)of on-site personnel,and any other pertinent field observations also recorded on the yield SOP - 2 U'D LEVELS USSNG excavation or boring In iAF-ASUFt11i1G 1 1MrrER OR jKrllERFACE WJLTER LEVEL forms are used to record possession of PRODS Cham-of-custody typically includes thesample from time of collection tGu oayl of the samples will Field equipment used for liquid-level gauging yp Dunng shipment,the person signing the chain of- the measuring instrument(water-ler+el meter or Interface probe) relinquish them to the next person by 9 g form(s)and noting the date and time The sample and product taailw(s) The field Vat also tncal�eico g water) custody sample integrity, supplies(buckets,solution,spray battles, wells control officer at the laboratory will verify p reservation confirm collection in the proper to be►Iced in clearnng the equipment between contat p adequate volume for analysis is lowered into the well cantainer(s) and ensure poor to measurement the instrument tip established top-of- gned urttd ttouches bottom Using the prevwuslY est robe cord casing or top-of-box(I a wellhead vault)point,the p It these conditions andrtsnn to ambers for identification throughout raduated In unique laboratory 9 yrdi be recorded on or halyard)is marked and a measuring tape(g reporting The log numbers utred log book ( � is used to determine the distance analysis and rep 9 hundredths of a foot) on the cord This eS the chem-of-custody farms and in the 1pie description. The sample description,date between the probe end and the marling maintained in the laboratory other relevant information will measurement is then recorded on the hquid4ovel data sheet as received,clients name and any the"Measured Total Oepth of the weil also be recorded obeto measure liquid When necessary in using the Interface pr rounded to either the metal gpp - 5 UAL1T'1r levels,the probe is first electrically grounded no ground is LAISOi�.11.O1f1Y ANplt.YT1OAL Q stogy pipe or another metal object nearby jLSSURANCE AND CONti"ROL available,reproducible measurements can be obtained by 1 clipping the ground lead to the handle of the interface probe tcates,spikes, case in addition to routineInstrument annmrtifiedrreference materials are and d in blanks,Spiked ufic irequencie5 to monitor The probe tip is then lowered into tbeehep n,gl)tone ind cates the routinely analyzed at method-spa vents n the laboratory the groundwater An ascdleting prec,lstan and bias Additional compo probe is in water The probe is slowly raised until either the oscillating tone ceases or becomes Va11 indication and the DTW steady tone in either Quality Assurancellaualty Control program include h to-water{ case this is the dept j t The stea Participation in stake and federal laboratory measurement is made Be, ordF�Y in this cadsetthe probe is s accreditatioricertification programs, floating liquid hydrocarbons(FLH) l the steady Participation in both U 5 EPA Performanceend linter- product(DTP)indication nn ndtthe DTP measone ceases urement is rnade7)"ILS is the o- 2 S and WP studies) Evaluation studies(W evaluation programs, accordingly labaratary performance Standard operating procedures describing routine The Process of lowering and raising the probe must be g repeated several bees to ensure accurate measurements e and periodic Instrument maintenance, OTW and DTP measurements are recorded on the `esponsel data s� When FLH are indicated by probe's q 'Duk of-Control"lGorreettve Action documentation a product bailer is lowered partially through the FLH-water procedures and, interface to confirm the FLH on the waterarticularly n as cases further Indication yOff the urte thin This LH thickness-measurement is S Matti-level renew of raw data and client reports where the FLH layer is q FLH thickness" recorded an the data sheet as SOP - 7 pUpOiNO ANID ORO V NDW,LTI in order to avoid Crass-corrtart►inatton of webs during the liquid- SAMPLINC level measurement process,wells are measured in the order of Sampling each well is purged by evacuating a "clean"to"dirty"(where suchunfinenttis cleaned ion Is dawithh solution Poor to writer camp g addition,all measurement eq p minimum of three wetted well-casing volumes of groundwater and thoroughly rinsed with d®ionized water before useebetvf�+tee When required,purging will continue until ether the measurements in respadvw wells,and at the completion volumes c groundwater dischargethree Wetted wwl=ringurdl days use When required,purging will continue stabilize,8 mawmum of water temperature conductivity. P ten wetted-casing volumes of groundwater have been ` recovered or the Well is bailed dry