ARCHIVED REPORTS_XR0005284 - Laserfiche WebLink

Home Browse Search

e SUBSU9RFAC�SorL,4 Site hydrologic c ND GRUtI�y�WA R ASSESSWNT REPORT IlataCte5t1CS ESA's JuI were obtained Within they 2Q�and January 2001 from Ground Zero Great Valle assessments The site rs located irnalheis, Inc r UST removal, and Jul Y Georriarphlc Provence and during brown clayey y assessment Based an the San Joaquin Valley, Yey silt and fine sand activitie$, shallow soil materials encountered during these fine- (see Sorl Bonn sort underlying Groundwater Was tenallaval g Logs, ,9 g the site Ma PPendix B) 'Theconsist generally of Based u as not encountered at depths ran m a water table rs present rn Pon surface in the 13_ ging from PProx1matel flow of the the and the I foot deep excavation rte �` IS to water table ocation needed for rhe UST e feet groundwater, is north_northwest toward the Calaveras River, este removal In this ' as daterriuned bys the mated area but as groundwater wells Calaveras Raver l flow Stockton 2 generally easterly, totiv�ds Penetrating deeper water, Regional flow of groundwater depressionbeanng strata, can v ary ESA recent( beneath the City of Y Conducted a file review groundwater monrtorrn at the SJ review g wells to con[•; CE1jD to obtain info are summarized below Firm shallow I7nataon re between 15 to 32 in Table 3 groundwater flow girding local feet bgs, with , and Indicate that the�, direction groundwater ater table varies I depth of this Thirteen municipala generally flowing In the northeasters as not on iter wells have been identified from 2,OW Y direction 1 l wells are Owned '�and Fr Munica wned by the Call fo re 5 Two of the wells are feet to 5,600 feet fr 10 Pal Utilities does mia Water Service owned by Upp fro., the Stockton, 2000} not have an The City of St , the retrialning Y wells within one mile of of site on,De the paI'trrlent of Well construction data o (Ed Formosa, Cit indicated that the w n the two Y of ell located o wells owned by UOP was Well 43)and is S 10 feet dee at pacific Avenue at Broo provided to ES,4 in than well is 55 feet b p with the highest kside Road That data Perforation at a depth(referred to as the Pha separated from the Iowgs According to the well to of 225 feet b rmacy "hardpan"soils er, Possibly confined g, the shallow gs Water level between '4nother well oundwater groundwater(water table) is Fulton and Knoles Stream seed to as Bu ,bearing zones b depth of 130 fe t iris Tower, Well � Y over 70 feet of Cl, The water table in this location on well is 02 feet dee }is located o Y bearing strata b p with the highest n PacrfFc Avenue y about 35 feet of brow g aPproximately.�0 to n clay s separated from the Perforation at a diminish a ve 110 feet)Is ex Y The Clay unit in this area (ewer groundwater vertical groundwater peered to form a relative( (eXtendin Considering the consistency $radrenr y impermeable a r frim for the between the water table and Io quttard that w shallow Y of the fine-grained Quid Centimeters groundwater may be relatively- aisoils encounteredPer by ESA h or between slow and could ran hydraulic condvctivrty 10 and 100 feet per year 3 range from lx l0_'to lx I0 6 i Under ground Sto - 1 Prep by Groans Tank Closure Report i Analysis Inc a81 W Mend � an Joaquin County Mood oc'no Av Hunt,Geotedtn rnl En ! Control and C entre 'Stockton' onservat�An C""Omta S�a"e 19 hitiesrr D+strict Grol'"dWa �Pr21 , gatenn,r ha��c/600f, McGra terl{eporr,Slrnn Addittonai w Ntll,N, Yar�'"ew'a and Fall 1998 Croundtivafer Assessment Report �York, 12 ESA r 1OO5, �� March?b 2001