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091,144y,2005 <br /> =NC project l�lo 0 4911 <br /> Page 6 of 7 <br /> 3A. WELL"DEVELOI'ly ENTAND:SUItVEY _ <br /> Fah newly installed mound,water monitoring-we will be,developed at least 49-flours following` <br /> well installation ae4vities:T3600pment of thepiroposed wells will consist of a combination of <br /> bailingwith a stainless steel bailer to remove the mai orp r ion of fine-gramed'sediment from inside <br /> de <br /> well,:sur9mg to flush aut ar draw in sediment from the footer peek and additional-ground,watet <br /> p�with a su n etsible:pump:to finish the remmoval-of fine-grained sediment. Developmental <br /> -purging_ activities will be,,continued unn. field parameter (pi 1, electrical. conductivity, and <br /> temperatrel reaings have stabilized and purgedwater is vislly sediment-free.Additionally,each <br /> well-head:elevation wllll be surveyed by a California state-licensed sub vey engineer to the,nearest . <br /> 0;41-foot relative.to-a City,of Stockton Bench_Mark datum;additionally,`Additionally,the survey <br /> gill utilized global positscnirtg systeln (OPS)°techniques tai identify pude=and lungitade for <br /> tracking wells 1V Wrl-:through MW_5 on the State .Watei Resources Control Board (SWRCB) <br /> GeoTiacker-database . <br /> 3 5A EQUiI'NI N 'D� AhUNATION <br /> ,c611 <br /> Ate sampling toohs use i fC�ir sarn►ple on will be thoroughly rinsed will clean waterafter being <br /> washed with a.soMon cif Alconox A].0 d6vvii-hole drill ng and swii lhngequipment"l be pressure <br /> washed prior to starting the boring <br /> 3A GROUND VVVATER I oNITOR1w PROCEDURES <br /> mound water sample<collecton,wi 11 be performed�n:accordance with San`Joaquin-County Public. <br /> H alth Services En*Wnmental`I�ealth.T. sio, �VVt1F Standards and R�VQC$ guidelines°(Tt�i <br /> gi9nal mater <br /> 04 <br /> Cotter©1,Board':Rect m ze�tdutt©ti:�for Pr�limi try Invest gatiom,and <br /> Evaluation of tlndergreunr Storage Tanks)sampling protocols. <br /> 3'.bJ. Staiio Natot .,eve,lt+ieasurerrtents <br /> Prior to all gr©phd water pig and;samplings tic'wateT levels in eaeh wall will;be measured <br /> using an electric:watcr It indicator VNater'%ve1 data will be recorded io the nearest 0.01=foot from. <br /> a reference point matkeci on the top of each,PVG well .casing.,Before`and of e'r 'each use, the. <br /> measurement device will be rinsed"with clew:tapwater <br /> Advanced GeoEnAronmenK Inc. <br />