SITE INFORMATION AND CORRESPONDENCE_CASE 2

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SIERRA LUMBER CASE #2 Page 1 of 1 Path to Closure Plan a 16o GEOTRACKER HOME I MANAGE PROJECTS REPORTS I SEARCH I LQ92LLT SIERRA LUMBER CASE#2(706077 268 97)-MAP THIS SITE OPEN-IPEMEDIATION 375 HAZELTON AVENUE ACTIVITIES REPORT CLEANUP OVERSIGHT AGENCIES STOCKTON,CA 95203 SAN JOAQUIN COUNTY LOP(LEAD)-CASE#:0001644 SAN JOAQUIN COUNTY P1 lSt IC MEIPAG CASEWORKER:GARRIEL GONZ41 EZ-SUPERVISOR:ADRIENNE ELLSAESSER VIEW PRINTABLE CASE SUMMARY FOR THIS SITE CENTRAL VALLEY RWQCB(REGION 5S)-CASE#:391168 CASEWORKER:JAMES BARTON-SUPERVISOR:CORI CONDON CUP Claim#:8478 CUP Priority Assigned:C CUP Amount Paid:5943.941 CR Site ID 0:NOT SPECIFIED THIS PROJECT WAS IAST fADDIFIED BY NOEL HENOERSON ON GM 1;201511:52:58 PAA-HISTIXtV THIS SITE HAS UNAPPROVED SUBMITTALS.CLICK MFRP TO OPEN A NEW WINDOW WITH THE SU BMITTAL APPROVAL PAGE FOR THIS SITE. Path to Closure Plan THIS vEPoSIONIS RNALAS OFN1fa015 PATH TO CLOSURE HISTORY emlayssr vsTx To cLDsuaa Pix IMPEDIMENT 1: General Cdledaconceptual site model that assesses the nature,extant,and mobility of the release r Procedural Impediment-M has NOT been tlavelapetl Sb to Rmolw lm Memt-Ste 1:-DELETESTEP COMPUMONDATE cvvu Cant notes that vertical and areal extent Of imps ted groundwater is not fully delineated; A Me vertical seew adequate to the EHE, hot someadditionallateralEelineatitn nay be required to escalate 9/J62015 I CEN. Prepare and submit a work plan to complete the lateral assessment Of impacted gmundwatez WE of w-c_o-na;,.v ann., ..n t cn we.1 In u..ro.:an., _.__ ADD ADDITIONAL STEP IMPEDIMENT 2: General Criteria F:Secondary source has NOT been removed to the extant practicable r Procedural Impediment-IMM [!!n Resolvelm Meet 2-Step 1:- COMPLETION DATE mgilt,OPE remediation currently 3n operation; 3f EVE portion is not core effectiva, nay needto ''.ontinua with fust the WE portion.une 2015 VPn4TE-DPa still underway at and of IN qtr 2014, but appears to be approaching the end of 1Y11(A15._ •1-.a..nvnro.. v.ntr.r.n..n.aHn.na.m+N V:.n - ADD ADDITIONAL STEP IMPEDIMENT 3: M.dWSpeciff.Criteria,Groundwater:The contaminant plume that exceeds water quality objectives is r Proeedurallmpediment-im NOT stable or decreasing in areal extent and does NOT meet all of the additional characteristics of one of the five classes of sites. Conditions that do not meet the Policy criteria: • Plume Length(That Exceeds Water Quality Objectives):Unknown • Nearest Surface Water Body(From Plume Boundary):>250 Feel and 51,000 Feet Soo to ReaoNe lmpedment 0-Sim1:- COMPLETION DATE ntinue x/ arrive OPE zartNia[ion and when cmlpleted, verify by poet-zamedlatlon rebound testing Tune 2015 DPD E-benzene concentration have dropped below 1000 ppb for the most Intent toe groundwater DATE mnitozlonCompletionevents. Leaving projected Cm Coletion date as 3s, but may need is add more time later far 1YJ1YN15 - ♦.I,m,nA.u.linn _..... __ ADD ADDITIONAL STEP IMPEDIMENT 4: Media Specific Uteri j!aIrcleura or In I to,Indoor Ai:The site is NOT considered low-threat for r Procatlurellmpetlimant-WFD the vapor-Intruslon-tosir pathway and sitespeclfic conditions do NOT satisfy items 2a,2b,or 2c. Conditions that do not meet the policy clitoris: • TPH in the Sioattenuation Zone:2100 mgikg • Bioattenuatlon Zone Thickness:2 6 Feet and 4 10 Feet • 02 Data in Bioadenuation Zone:No 02 Data • Benzene in Groundwater:2100 pgll and<1,000 pill • Soil Gas Benzene:Unknown • Soil Gas EthylBenzene:Unknown • Soll Gas Naphthalene:Unknown Sia to Resolve sW menta-Sfe 1:-DELETE STEP COMPLETION DATE Benzene over 3000ppb, yPHq locally over 100 mg/kg: continue DPE to reduce dissolved benzene and sorbed �>L�Tap��A�p�I TPH concentrations; take confsrnmtion samples in iw acted area. 1p1J12015 Tune 2015 VPD E-benzene concentration have dropped below 1000 ppb for the moat recent two groundwater --— - - --- mnitnr�nnn.rwnev..4+v:nn n.nb-ctl enanl.•mn dee... 1..hne m.v _ en .tld mo•:m=la•.. fnr ADD ADDITIONAL STEP CLOSEOUT ACTIVITIES FOR CASE IN OPEN-ELIGIBLE FOR CLOSURE WTE mEXi1FIED RP NOT FlL1l1nX PUSUC COMMENT u-T_LV CTION LLDE9 ION Wluffl EP09aL "No... a RO!i•• ��f a"1511 � 1� 'Date Identifietl for Closure is the date the case status changetl to"Open-Eligible for Closure" '•Site Closure Date is the date the case status changed to'Completed-Case Closed" ------------ Save Form as PaMallY Completed Save Farm as Cam tete �R HELP HELg CONTACT GE CYT C�73Ai YEPTCACTT L)FG OT LTRAf A_L•KFR HFI P LOGGED IN AS HENDERSONN https://geotracker.waterboards.ca.gov/regulators/screens/closure_policy.asp... 6/11/2015