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<br /> OUARMILY GROUND WATER MONITOnING RICPORT
<br /> SAgl F Street.amts_CulfarrO
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<br /> 1.0 INTRODUCTION
<br /> This report presents the results of quarterly groundwater monitoring completed by Aegis
<br /> Environmental, Inc. (Aegis) at the operating bulk distribution facility located at 5491 F
<br /> Street, Banta, California (Figure 1). The reporting period ended with a groundwater
<br /> sampling and elevation measurement event on 1 February 1991.
<br /> The scope of this phase of groundwater monitoring was to:
<br /> o Sample g;oundwater from each monitoring well on site on a quarterly basis;
<br /> o Submit water sarnpies to a California-certified laboratory for analytical
<br /> testing;
<br /> o Collect groundwater level data on a monthly basis; and
<br /> o Prepare a Quarterly MonitOng Report.
<br /> 1.1 Site Location and Description
<br /> The subject site is located on the northwest corner of 6th and F Streets, Banta, San
<br /> Joaquin County, California as shown on Figure 2. The site is located in an
<br /> commercial/residential area of Banta. The existing surface of the site is essentially fiat
<br /> lying with a paved surface around the southern and eastern sides of the facility. The site
<br /> is an operating bulk distribution facility with underground fuel storage tanks (UST's). A
<br /> - tank inventory is included below as Table 1.
<br /> 1.2 Background
<br /> Aegis assI quarterly monitoring responsibility in January of 1991. Work performed
<br /> at the site by previous consultants included investigations by Earth Treatment Systems,
<br /> Irc. (ETS), Delta Environmental Consultants, Inc. (Delta) and Nations Groundwater
<br /> Associates (NGA).
<br /> The results of previous consultant's groundwater sampling and water level measurement
<br /> Elvents are summarized and included herein.
<br /> 90M99A.RPT •f
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