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E e t <br /> A. <br /> J' <br /> Ground Water Monitoring Report - First Quarter 2001 <br /> -Geweke Land Development & Marketing �J <br /> 16 South.Cherokee Lane, Lodi,•Cahfornia _ <br /> INTRODUCTION AND SCOPE OF WORK, <br /> Atuthe request'of Geweke`Land Development•& Marketing(GLDM); and in accordance with.. " <br /> Cleanup and Abatement Order No. 93-701'.-Advanced GeoEnvironmental,Inc:.(AGE)has prepared <br /> this report of monitoring fieldactivities performed,.at'16`South'`Cherokee Lane; Lodi-, California <br /> during'the first quarter of 2001. The site and'its surroundings are illustrated on Figure 1.',Structures _ <br /> and.well locations'relatedto'the site are shown on.Figure 2. „ <br /> The scope of,_work,covered by,this report was to•collect ground 'water samples for-analysis, to ' <br /> I• ,'' ,; characterize ,the•current status' of the hydrocarbon impact to 'ground water,and to' document <br /> nitoring activiiies,at.,the site duririg the first„quarter of.2001. Results of <br /> ,previous investigational <br /> are detailed irithe.-Problem Assessment'Report(PAR);,the Quarterly Report-Mdreh.1996 and the <br /> QuarterlYRe ort -March and-June1999. Analytical results from previous'monitorin events are <br /> included in Tables 2, 3;5 and 6 of this report.,, } ' <br /> .:2.0. PROCEDURES' , <br /> I' Quarterly ground water monitoringWas.performed-on 14 March 2001. Field work was performed <br /> in accordance with Public Health Services-Environmental Health Division(PHS-EHD)guidelixies <br /> for sampling monitoring wells: and 'Central Valley Regional Water 'Quality Control Board <br /> Widelines for the investi ation-of und storage' tank(UST) sites.(GNAQCB) gu 'o ' <br /> 2.4;"' 'MONITORING-WELL-PURGE,PROCEDURES • , <br /> ,r On 14,'March 20.0'1,;a Solinst'wateulevel meter was used to measure the depth to groundwater in . <br /> ,,. ,_} fiftee'n,wells relative to.the tops.of the well casings (Table'1).-Wells_`MW-1 through MW-5-and- <br /> . MW-7'were;{purged:-using dispo.'sable''plastic baileis:`Wells,MW-6,._EW-1 and MW-8 through <br /> 1VIW=14 were ur "ed usin a Gruridfos submersible purge pump.App roximatel y 96 gallons ofwater <br /> I . .pg g pgpp <br /> Y g <br /> were removed"''frbni '�EW;-L Approximately 3.5. to 10:5'-gallons of water (a 'minimum of 3 <br />' casing-water volunnes perwell).were removed,from each.of the remaining wells. N <br /> P , , . <br /> Tern erature pH_and conductivrty_of the purge water'were measured at regular purge-volume <br /> Intervals using 1cither.a Hydac'arid'Wkton water analyzer and the readings were recorded on'field <br /> logs:'Field data'and;,work'sh&ts are Included in Appendix A. .The purged'water was placed in <br /> I DOT-approved drums and stored on site' <br /> • j ! } <br /> I <br /> t <br /> ' Advanced GeoEnvironmental,Inc. <br /> t: <br />