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1 I C'LV ,ARy p.TER GROUp, INC and sampling Meld �r°cedures Rei Monitoring downhole �rountiwa st of scrubbing first const. rinsing in a wn Pro' sumPs used), and dedicated do l Decanthf"gh anny Purging p aired AnY non- yl n in area is established camped thraug latter is reel r w wash solution or detanixed water if the water inning, a decontaminattwasii { water electronic pnar to beg an p,]'canox& solution nse of potable ©pI feet with an eQai¢ment in a second ri er and during Clearwawell Diable water and rear to use to the Dearest manager rinse of p measured the Protect in order of incteasin$ base is decontaminated P water level is uest of a reliable arate-P hole equipmenta well, the static pet Once per year,at the reit to establish well if floating d he thickness sampling which robe in and typically measured not available, with between eac roduct baffles, an ` tical data are decoittan'inated open-ended P electronic interface P Prior to PDepthto bottom is tyP e .arlll tae a clear, P with an urged and no 1 sounder If historical analy ffs collected using be measured site sounder and P may alternatively urging i6 not adderwiiselspecified ro the first visit to a water observed' S1 SpH or during p led unless other Product containinatton,SpH) are suspected or ballet of SPH before sanip ents and floating P hydrocarbons ( of feet to the le thicl nessa hydrocarbon sheen are measure neatest p a measurab containing as well as water level IS measured to the container% a Wells ca Any monitoring that such as well integrity sample is collectedf.ff�d observationsDai�purge Calculations forth- physical Pararnete sarr+Ple 1 project manager the Gauging ersible pump if the water also If, noted on sibm assess are thiCkneSses ar bailer or 'a 5' & activities to salinity etc e Of less 1 urged using either a PVC during p en, turbidity, Chang degrees monitored issolved oxyg is defined as a ,�Iel be sampled is p e ,Hater are such as d Stability centigrade (1 g tram well to the purg meters is achieved 1 p degree aratelY path monitoring aquifer If required,aPeter stability and less than from the bailer sep als of erature and conductivity) of hos, and at voluime- inter temp re,eritagve of the d re resentative if p micro m le decanted letely cons) p conductivity to a discreet same urging irnueidallor until the well comp collected is SamPies are 10o�d change in measured in s during p well volumes have than eters are in least four tib o measured less parameters have been rem three meters are than tl 25 PH units, temperature Scared ll volumes led after fewer than measure Para being- Chang eing change in patarneiers are `h three well casing be same eters used to drum After pahrenheit) until rtchargerMaData sheet All m S5.gallan the rest of the Purgepurging continues trate a slow D QT approved one wet] volumeis recorded on the pu $ site in waste hauler Wells which dewater or damn and stored an a licensed urg g inform labeled, asal facility by welt dewatars well P water is sealed, topriate disp when the been removed purge owed to an aPP e rate, e for at water is remwell recharg ed to recharg calibrated d mfffled,the urging tate exceedsthe well is allow led within 2G chemically p or, if P The well is sarnp well after purging extrernelY s10 ling to the tDl Mediate If recharge i5 Mated for satnP disposable or dedicated raced in n `1 les are collected imm water level accutrt either iiratar samples are p of its static volume haolyethylene bailers, d first a cooler tat Groundwater same tlecte and placed on ice in aired by ed to at least�p`y0 or until Buff collected using polyethylene axe co form has recharged if practicable,Samples are hive to volat of'custody r ass standards req least two hours, d, uinented on a chain its match or su P hours of purginof lzedtfcar carnPounds most lens containers,labeled, Anaiytical detection hm Samples being supplied tical labor atary appropriate laboratory citified analy field transport to a state_cetti guidelines duces it,the celevarit local ar Seg to the fnllawing ptoce les Col personnel adhere degree of a u of the same ling each well Teasing the expected order of in Co prevent cocitamination are put on prior to same latex ,loves collected in air 01 samples are previously A new,clean P the procedures auged, Purged and groundwater results well, using analytical each Wells ate g }lased liistririCal between an irii ns mi zed contamination hly decontaminated samPle is will be thoraug through the slowly running the etluiprnent of air passing Riled by is catetull� Ail urging inning of this section the amount le bottles are The lid owed at the g analysis, water Same of the bottle the cap is rem described volatile organic Doth resent, resent the volatiles from teniscus over the �a bubble is P sample collection from stripping convex m bottle if bubbles stili are ¢ During reYent the air until there is a al ng the sample container, This helps p side of the bottle bubble' are present within the w container down the that no air 1e container After re� �with a ne sample dO the bottle such screwed onto is added to the lamp the procedure is rep water i5 discarded and Aril ¢ a001 and additional sample container ievised P inside. Is i C��ntrwn-i�tt GRovt' 1N� (GW 5)