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� oual Water QualityCo <br /> A <br /> Central Valley Region <br /> Robert SckneiO## Cbmir <br /> sJL Ad r 9scradisMt l?f fd OtBce Araald <br /> . w 9 11020 Sun Center Drive#200,Rancho Cordova,California 9567"114 <br /> Pro k+t Phone(916)464-3291•FAX(916)464-4643 <br /> http://www.wwArbm*.mgov/centralvalky <br /> Tt ; tirr " FROM: James Batton <br /> Sen r'1iVt#tw Resources Control E Geologist <br /> Engkx,W,, US Enforoer�Unit 2 <br /> SLIC Unit <br /> Robert Busby SIGNATURE: <br /> Ser 'Wneering Geologist <br /> Ufs�x it 1�n#:Unit 2 <br /> UST Case File <br /> DATE: 8 Junw2o <br /> StiBJ m RECOAWENDArION TO TRANSFER UST CASE TO{SUC UWT, UNJ It r <br /> CORPO►Ri4WNt 819 HUNTER STJT, STOCKTON, SAN JOAQUIN COUNT <br /> ' �E>�S7�S"sF39'>F153) <br /> `l,�r trodu i <br /> :.0 later (Letter, atta�t�ti)dated 20 July 2005, San Joaquin County Environ :Helalth <br /> 15epartment(SJ �HD)'.transferred the.Underground.Storage Tann(UST) case for Unfirsf <br /> CorporaW..(Urtifi":Joatted at 819 Hunter Street, Stockton,-San Joaquin County (Site)from <br /> tha Local Oversight Agency (LOP)to the Central Valley Regional Water QualityControl.Board <br /> (Re Board): SJCEHD's Letter cited the.Report—.Mbrridoring�lMal!Irtf sHetwn and Fust <br /> Quartarty Ground Water Santpling(Report);submitted on 5 July 2W5 by URS Corp on.for <br /> ` Unifirst Corporf#ie>h. The-SJCEHD stated thai!the lead agency trnsfe►r+gas tlsult.of <br /> IdVorinsted solventaJetrachloroethene (PCE) and Trichloroethene (TCE) reported in <br /> _gto -at,#he S3�► The Report documented the installation and samplirg.ok ,tr <br /> r monioring wells (MW-1 through MW-4, Figure 2) at the Site. Gr> hdvval <br /> 1.ij praxis Lely 36 to 45 feet below ground surface (bgs). The downgrf t <br /> grqundw ter flow,direction Is towards the northeast. Soil type is reported as predomImn ly <br /> I clay with intedi ngwW sands and gravels near the water table. <br /> Site soil collected for etrs�ee�in April 2005 reported the following soil filtrations in <br /> Milligrams:per kilo . /,g)- <br /> Location TPH-d PCE TCE P Oil and:`Grease <br /> MW-1 u radiant <1 <0.005. <0.005 <br /> MWy2 tank: it 6.2 0.140 <0.005 <O.l]67 <150' <br /> C lent <1 0.005 <0.005 40.067 <50 <br /> " #^ 1..770.023 <0.005 <5A <br /> t' 1 w. _. H ftcoif.0 w4ft from 30'bps 3-soll sstnpls from1d'bps 4-soU sarnpN 25'bot <br /> r'. <br /> !i.soil from 1W bps <br /> is <br /> CaWorjda EnvirommeWW Pwecgox Age fcy <br /> P40t ►Poper <br />