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1] <br />E <br />In the case'd the n6n-dedicated pump, it is lowered <br />ifitO the Well and then activat& <br />(power from the controller box is regulated which controls the discharge rate of te <br />centrihgal purge. pump). In the case of a well with a d4cated pump, the p <br />neuznati� <br />controller box is connected to the dacated pump (some WeM have speeml hig1hrate <br />purge pumps usedonly for purhe <br />J can <br />tse * be IdentMed bY the.fittiztgs* ion the <br />p <br />dedicated. d[ischarge tube (kept locked at the well head in a pro I• <br />- <br />tecdyc -bag) is then <br />amched to the discharge fittifig on the casing cap. The -Controller is dlen iurned on and <br />adjusted to reach the desired -purge rate. <br />Note: InIll cases where gasoline powmd gcneratoror compressors are used� they are to <br />be Placed at least ten. feet downwind of th e- well being sampled. <br />During purging, field parametm (pK electrical conductivity, turbidity� and-temperab") <br />v4H be monitored. Parameter MCMt wCnts Will be recorded on Purge and Sample Logs - <br />In addition field obsm-vations alsG wM be made and recorded. on ther Purge, and sample <br />L.0gs. Such Obswvations include1tow rates;-volume-purgto;color <br />Odor, bubblink or-aqy.- <br />bther notable observations. An. example Ora Purge ChMI-tetb-,ation and Sample Iog is <br />,6- Purging wilLcontinue until -stable. parameter readings am obtained- pH is comidered <br />stable if thc readings do. not -vary by greaw amn 0-i �H uniL- Tempermlare is cOnsidered <br />table if it does not vary by mom d3at one degree Celsius. Conductivity and turbidity <br />considered stable if dicy do not vmy by greater dmn M116. Field M'S rameter s.will be <br />rePeated at approximate fivcgallon intervals. A minimum of tbz= Weff volumesof w,,,= <br />will be remoyed fiom each well. Ihe final, stablc� values vill be <br />==ded to be us�d in <br />tfic annual repott. <br />K =-11t a <br />samples will: be collected as soon as possible after purging is ochmplcte& Laboratory -supplied <br />contffn4US will be used to hold the. water samples. Samples to be analyje� for -volaffle. Organic <br />cowduient� will be collected first. Dq=&g on.the wellsamples Will be collected with either <br />dcdicaftd pumps or dispossaMe bailen (a -new factory wrapind bailer will be used at each well). <br />In die. case Of dedicated Pumps� the PUMP fate will be 4usted so that the sample WM not be <br />412ted as it is collected In sample battles. When ballers am used, they will be lowered slowly <br />Wo the well so not to dLtIrb the wata. lie sample will be decanted into the bottles slowly with <br />234U$49-F0IU310R= <br />C*rflf9M 2WQ YJchiWc; b3,. <br />KMI <br />