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site History
<br /> Soyett QetroSeum(4 i9 5.Main Stt-a ge 2 of I l
<br /> les were collected from each boring at depth intervals
<br /> res. Laboratory analytical results of the
<br /> nd three analy at or above the laboratory
<br /> intervals for soil clas1 i5i feet, and 26-26,5sfect foroil la �S°mere not detected
<br /> rof 16-16.5 feet, 2D 2 etrolewn hydrocar
<br /> twelve soil samples indicated of the samples.
<br /> reported detection limits in any I In_situ Testing of Sacrament°, California, advanced
<br /> 2001, WHg, in c°njunctian with VS
<br /> 2 CPT-2 were completed to dept�reof 76 and 76A feet bgs,
<br /> encQunter d in CPT_I at
<br /> 4n February 1 and the of
<br /> two CPT borings at the site. CPT- beds of clay were encountered o depths
<br /> s were terminated due to �T Beds of clay w rt of their findings of
<br /> respectively. Both boring F submitted a rep°
<br /> depths of 2D to 24.1 feet and 5 feet,
<br /> to 5762 feet bgs• Mr Jeffrey Wong Of the SJCEHD-
<br /> 4 feet, 49.7 to 56.4 feet, and 62• 2001,�toeet bgs• WH W-
<br /> 23,8 to 26 well,M
<br /> the CPT Barings in a letter dated February completed a deep monitoring 40.5 to
<br /> approximately
<br /> 2001,WHF, in conjunction with Frontier Drilling, oil les were-
<br /> On
<br /> ere
<br /> On April 25, }Z feet bgs. Two one of the analytes
<br /> t b s. The screened interval far raxinoately e well as installed at ap
<br /> 9, to a depth of 50.5 fee g depth was fneasured at app analyses.NOf
<br /> 50.5 feet bgs. Groundwater dep les collected Pram the borehole none
<br /> the borehole at depths of 43.5 feet and 50 feet for laboratory m MW-� indicated that none
<br /> collected from TFH G, and MTBE)Were detected in the e collected fro were detected,
<br /> of concern($TEXI groundwater camp enatesladditives) ort of
<br /> Laboratory analytical resultsTpH-(j, and selected gasoline oxyg L. the FinalZep
<br /> MW-9 $TEX, WHp concluded that the
<br /> of the analytes of C°nCem t 2001, ended that
<br /> of MTBE, which was deteetenation dated concentration
<br /> gl p d and recamm
<br /> with the exception Groundwater Copraeast of
<br /> Findings _Lateral ;Extent flf well be installed directly
<br /> Petroleum hydrocarbon contain e additional monitoring en i i as identified.
<br /> source of the Pe continue, on
<br /> quarterly groundwater monitoring
<br /> and that no remedial action betaken at this site until the sourcewas
<br /> water levels and collect
<br /> the fuel island,a oundwater
<br /> Condor was onsite r ureas quarter 2002 gr
<br /> September 25, 2002, a representative of through MW_g for the third q and IAW-4 and MW-5
<br /> On les at monitoring wells MW-1 were heavily silted,
<br /> groundwater camp
<br /> wells MW-4,MW-5, and MW-6 onion of the field activities.
<br /> monitoring event.Monitoring wells MW-4,
<br /> . Mr. Jeffrey Wong of the SJCEHD �"ias onsite to observe a rrionitoring
<br /> were dry. MW-4 and NAW-5
<br /> a Coiidor representative was onsite to rdcVe°plied to lVI
<br /> ent rocedure app
<br /> At the request of the SJCEHD, the ,eater from the wells. The
<br /> and MW-6 on September 27h2002, Th r er,vand hen bailing well-rounded, and well-sorted
<br /> MW 5, the wells with p rained,
<br /> consisted of flushing ficantly reduce the amount of sediment inside the well
<br /> t removed from the wells ca fled ao 4 ed an to coarse-g successful. Based on Condor' field
<br /> to
<br /> SedimeII rrtent activities fa 5 was not
<br /> redevelopment of MW-4 and MW` the annular sand pack
<br /> sand. The redevelop a sign
<br /> are daniagedremoving if1cartt amount of the
<br /> casings; conseque appeared aas casings of these wells redeveloped by d allowing all
<br /> ses from
<br /> observations, it app W-6 was successfully Y le was collected for laboratory yetroleum
<br /> infiltrate inside the casings.M A roundwater same or odors associated with petroleum
<br /> }*Io floating product, sheen, uarter 2002 q
<br /> sediment from inside the well casing• led during the third q significant
<br /> MW-6 on September 30, 2002, o f the wells same
<br /> ns were observed in any raundwater monitoring wells sampled contained t d at the
<br /> hydrocarbons event. All of the g ouridwonc rn (BTEX, TPH-G, and
<br /> gourtdwater monitoring analytical results for the gr s of concerto
<br /> amount of suspended sediment.Laboratory reported detection limits
<br /> detected at or above the laboratMTBwas detected in the
<br /> ember 26 and 30, 2002, indicased that ,one of the ana yt _8. e
<br /> site on dept enatesiadditives) we 3 MW-6, and MW E was detected in th
<br /> selected gasoline oxyg les collected from Mw_ 9. TAM
<br /> in the groundwater same
<br /> 1 MW 2 MW-7, and MW_
<br /> groundwater samples collected from MW 1 and MW
<br /> 7, Static water level measurements 'tedon
<br /> iindwater samples collected fro ated a groundwater flow direction to tloe sauth/souhv'�est.
<br /> gro
<br /> September 26,2402, generally ind
<br />
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