Laserfiche WebLink
In the case of the nondedicated pump, It is lowered into the well and then active -. • <br /> (power from the controller box is regulate[ which controls the discharge <br /> rate of the } <br /> cenWhgal purge.pump). In the case of a well with a dedicated <br /> pump, the pneumatic <br /> controller box is connected to the dedicated pump (some wells have special high <br /> Purge Pumps used only for puren&.these can be identified by the titEutgs on ibc cap). A; <br /> deandischarge tube (kept lucked at the well head is a protective • then <br /> attached to the discharge fittiftg on the using cap. 'Che Controller is then tined ®n and <br /> adjusted to reach the desired purge rate. <br /> Note: In ail cases where gasoline powered generator or%ompresscirs arc used,they are to <br /> be placed at 6A ten feet downwind of the well being sai npled. <br /> 5- During purging,field eters electrical Conductivity, - - <br /> P�m SPH, etivity,morbidity,and temp) j <br /> v'H be monitored. Parameter measurements will be.recorded on Purge arta Sample Logs_ <br /> In addition field observations also will be made.and recorded un tip Ptizge and Sample- <br /> Ugs. Such observations include•Ilow rates,-volume•pcuged.color,odor,bubo ' - o"W', . <br /> other notable observations. An example of a Purge Chanctai ation and Sample Log is <br /> 4 <br /> Purzin <br /> 6_ <br /> g will:contimte until stable parameter readings are obtained. pH is cousidered <br /> stable if the readings do.not vary by greater than Q.l pH unit: Temperature is considered <br /> stable if it does not wore that one <br /> �Y b3' degree Celsius. Conductivity and turbidity are - <br /> considered stable if they do not vary bygreaW than iG*/a Field Pammeters.will be <br /> rePC2tCd at approximate five gallon intervals. A minimum of[lure well vohuncs of water. <br /> will be removed from a wh well. The final,suable values will be recorded to be used in <br /> the annurepent, <br /> Sample Collection <br /> Samples will..be collected as soon as possreble after is completed. Laboratory-supplied <br /> co ' ers wilt be used to hold the water samples. Samples to be analyzed for volae-orgamc <br /> coastii will be collected first, Depending on.the well,samples WM be collected with either <br /> d<4cated pu.mp or disposable batgers(a-new factory bailer will be used ear,}[ well). <br /> In the. case of dedicated pumps, the pump rate will be 4issted so that the sample will not be <br /> agitated as it is collected In sample Bottles. When bailers are used, they will be lowered slowly <br /> iWO the well so not to disturb the water. The sample will be decantedinto the betties slowly with <br /> g44-I�I�Z31QR31S A.& July i410Q0 <br /> 2Wt ric� , <br /> da,roc, { <br />