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.,, ,.. a �« <br /> ti <br /> �na�s..,. .. ' " .� .. . " v.. ,� " � o * �t3°' -:r 9r.vn '� -: n -,_ +r •y�es, x'' _ <br /> ��'� �.f �` �•`�� r� 4 "S � �" � ,� � 'j •ry, �•'"a4..� .;y .d ;� '��� w '?f Rr.-.�, t'�, <br /> x �. Nim, �-�Y Kva���� ,. V�' �it nHfi� x .�`x'• � a,�...� A., i � _ �. W'F. k G+ �� +w -� <br /> Chevron/w. Benjamin Molt Drive 8 <br /> June 1990 <br /> (PVC) blank casing and 0.020-inch machine slotted screen_ <br /> Groundwater at this site is expected to be approximately 15-feet <br /> below grade and has shown a seasonal fluctuation of plus or minus <br /> approximately 1 foot. As such, the wells will most likely be <br /> completed to a depth of 25-feet below grade with a screened f <br /> interval from 10- to 25-feet below grade. A filter pack of <br /> clean, No. 2 Monterey sand will be set in the annular space <br /> around the well casing and will extend from the bottom of the <br /> screened interval to approximately 2--feet above the top of the <br /> well screen. A seal of hydrated bentonite pellets approximately <br /> 2-feet thick will be set above the sand pack and the well will <br /> then be sealed to grade with cement grout. The wellhead will be <br /> encased in a traffic-rated street box and equipped with a locking, <br /> ,plug. <br /> WELL SURVEYING AND DEVET,OPMENT <br /> After installation, the ,tells will be surveyed by a <br /> professional surveyor to determine position and wellhead <br /> elevation. These data will be used in conjunction with water <br /> level monitoring data to produce a potentiometric surface map for <br /> the site. <br /> After allowing sufficient time for the well seals to harden, <br /> Groundwater Technology will develop tine newly installed <br /> monitoring wells. The wells will be developed us!Ag a truck- <br /> mounted development system. The wells will then be subjected to <br /> .alternate rounds of bailing and surging until the water extracted <br /> fr6m the wells is relatively free of silt. <br /> Water generated during well development will be placed in <br /> 55-gallon steel drums and stored on site pending proper disposal. . <br /> �,--f <br /> GROUNDWATER <br /> TECHNOLOGY,INC. <br /> ia�� <br />