WORK PLANS - Laserfiche WebLink

Home Browse Search

APR-05-04 MON 12:31 PM AMDELL NELSON SCHRIMP FAX N0, 2CO26-9320 3s�osizooa 17:12 Fd3 res 94WIT P. 14 �lor4 ' T '� YLEINFtLDFF depth to static groundwator is rniasttred from a set location at the top of the PVC caning(usually the north rim). The depth of water is then subtracted from the elevecin of the Top of the well casing to ptovie4 a groundwater elevation for each monitoring well Ioeatlon. 04 GRfiil]VDW�TIRbfOVITCIRING 841 WaterLevcl Measurements Wat:r level measurements are made in the wells prior to ptugir.; and sampling the wells. Measurement protocol is as follows: 1. Prior to obtaining water level measure-rrtents,the monitoring wells would be opened and allowod to equiibtate fQr a period of approximately%,hour. ?. Iho water level probe is docantamiratcd in a trisodium phosphate or non-phosphate detergent wash,followed by a distilled water rinse,prior to usr,in each well. 3. Water level nteasumments are. made using R conductivity-based water-level meter. Depth-to-water is gencially measured from a surveyed m ark on the north rim of the PVC well casing. The water level measurements are converted to elevations using the surveyad casing elevations. B4.2 Groundwater Sampling Groundwater samples-am,collected from the monitoring wells at the site. The sampling protocol for each well is as follows: 1. Down-well equipment (pumps, bailers, etc.) IS deconuttuinated by steam cleaning, or by scrubbing in a trisoditun-phospltue or non phosphata detargent wash followed by a distilled water rinse,prior to use in oath well. Bailer cord is replaced prior to use in each well. 2. The depth to grrnrndwater is:nra.nred usLB a mzriducti•.i1'y-based water-lavtl=,%t% 3. The volume of water in gallons standing in the well is calculated b-v snblraoting the depth to groundwater rnsasuremeat from the depth of the well and multiplvina by r$e appropriate conversion fwtor(0.16 for 2-inch wells,and 0.65 for 4-iaoa r.ells). s 2200 n�:eamer q,200) a:2 03 x euvdAa m�. Pe4c er LY