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APEX ENVIROTECH, INC.
<br /> • STANDARD OPERATING pROCEDURES
<br /> Quarterly Monitoring Reports
<br /> SOP-4
<br /> SAMPLE IDENTIFICTION ANDC When practical,the groundwater sample should be collected when
<br /> CUSTODY PROCUDURES 'CHAIN-OF the water]eve]in the well
<br /> static level recovers to at Least$0 percent of its
<br /> Sample identification and chain-of-custody
<br /> sample tare y procedures ensure The sampling equipment consists of either a"Teflon"bailer,PVC
<br /> time of ���WeII as docu pent sample possession from the
<br /> collection to uhtmate disposal Each sample container bailer,or stainless steel bladder pump with a"Teflon'bladder !f
<br /> submitted for analysts is labeled to[dent[ the sampling system is dedicated to the well,then the bailer rs
<br /> time of sample collection,a sample numbtun q e to the sample,number,date, usually"Teflon, but the bladder pump is pVC with a
<br /> any in-field polypropylene bladder In general and depending on the intended
<br /> laboratory analysis,40-milliliter glass volatile organic analyses
<br /> measurements made,other pertinent field observations
<br /> a so recorded on the field excavation or bonng logs (VOA)vials,with"Teflon"septa,are used as sample containers
<br /> Chaln-of-custody forms are used to record possession of the
<br /> sample from time of collection to arrival at the iaboratnry Dunn MEASURING I2
<br /> shiprito t the person with custody of the samples,,will relinquish g LIKING LI
<br /> them to the next person b si WATER QUID LEVELS USING
<br /> and noting the date and time gning the chain-of-custody form(s) R LEVEL METER OR INTERFACE
<br /> laboratoveriry rhe sample control officer at the on PRO$E
<br /> confirm Collection in psamroper container(s),Inteand ensurer dequate
<br /> volume for analystsField equipment used for liquid-level gauging
<br /> the measunng Instrument(water-leve] typically Includesmeter or interface probe and
<br /> If these conditions are met,the samples W1 It be assigned unique product bailer(s)) The field kit aiso includes cleaning supplies
<br /> laboratory log numbers for identification throughout analysis and (buckets,solution,s
<br /> Artybottles,and deiontzed water)to be used in
<br /> reporting The tog numbers will be recorde
<br /> custody forms and to the legalld on the chain-of-
<br /> the laboratory The sample cleaning the equipment between wells
<br /> y-required log book maintained in Pnor to measurements,the Instrument ftp is lowered Into the well
<br /> description,date received,client's
<br /> until it touches bottom Using the prevrousIy established top-of-
<br /> .name,and any other relevant Information will a)so be recorded casing or top-of-box(i a wellhead vault)point,the probe cord(or
<br /> SOP-5 halyard)Is marked and a measuring tape(graduated to hundredths
<br /> of a foot)is used to determine the distance between the probe end
<br /> LABORATORY ANALYTICAL QUALITY and the mdrktng on the cord This measurement is then recorded
<br /> ASSURANCE AND CONTROL on the liquid4evel data sheet as the"Measured Tota)Depth'of the
<br /> well
<br /> In sddrtion to routine instrument calibration,replicates,spikes,
<br /> blanks,spiked blanks and certified reference materials are levels,the probe is first eJeetnral)
<br /> When necessary rn using the interface probe to measure liquid
<br /> routinely analyzed at method-specific frequencies to monitor
<br /> precision and bias Addihonal coin stave pipe or another metal object nearbynded to either the metal
<br /> ponents of the laboratory available,reproducible measurements can be obtaineground
<br /> b uca is
<br /> Quality Assurance/Quality Control program Include p
<br /> the ground lead to the handle of the interface probe Casey clipping
<br /> ] participation c state and federal laboratory The probe tip is then lowered into the well and submerged in the
<br /> accreditation/certification programs,
<br /> 2 Participation to both U S EPA Performance groundwater Art oscillatin
<br /> Evaluation studies{WS and tap Perfstudormance
<br /> and water The probe Is slowly(beeping)until te then he is the Oscillating tone In
<br /> inter-laborato performance evaluation o-ases or becomes a water(OTW)indtc taon of the l?TyV either case,this Is the depd,_
<br /> ry perfo
<br /> programs, measurement is rade
<br /> 3 Standard Operating g accordingly The steady tone indicates floatingliquid
<br /> g procedures accordingly routine hydrocarbons(FLET) In this case,the depth-to-product(DTP)
<br /> and periodic instrument tritmtenance, indication and the pTP measurerent is made accordingly
<br /> 4 "out of Control"/Corrective Action
<br /> 5
<br /> documentation procedures,and, The process of lowering and raising the probe must be repeated
<br /> Multi-level review of raw data and client reports
<br /> several times to ensure accurate measurerrlents The DTW and
<br /> data sheet
<br /> SOP—7 DTP measurements are recorded an the liquid,[e
<br /> When ELH are Indicated by the probe's response,a product bailer
<br /> GROUNDWATER PURGING ANDS is lowered partially through the FLH water Interface to confirm the
<br /> SAMPLING FLU thickness,particularly in cases where the FLH layer is quite
<br /> Prior to water sampling,each well Is purged by evacuating a thin
<br /> minimum of three wetted weft-casing volumes of groundwater This measurement Is recorded on the data sheet as"FLH
<br /> When re thickness"
<br /> required,purging will continue until either the discharge
<br /> water tcmperature,conductivity,or PH stabilize,a Maximum Often In order to avoid cross-contaminanon of wells durnig the llquid_
<br /> wetted-casing volumes ofgroundwater have been recovered,or the level measurement process,werls are measured in the order of
<br /> well is bailed dry 'clean"to"dtr
<br /> V'(where such info
<br /> addition,all measurement cqu pment stion cleasavailabwith le) nn and
<br /> In
<br /> thoroughly rinsed with dennized water before use,between
<br /> so
<br /> mcasurements to respective wells,and at the completion of the
<br /> day s use
<br />
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