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CoM )143001IM-Onat" n fig t1hoWn oil t'ht.) <br /> Well/Floring Loq PrOtIfint"d in AppundlX 11- <br /> urouttid to the nurfar-0 With A comont-n6nd grout MIX- od <br /> loggt�d continuoUtIlY for chdrActor'"t'on ' <br /> Drill cuttingn wore jujjc,-�d Staff GC0109iut <br /> contOr-lination and 9oi3 tYP0 bY 611 oxpor <br /> mulog the Unified 50il <br /> Claunification !;y9tan. Deacriptionn of <br /> e <br /> coilu encountered .Ind monitoring wall COnutruction detailsendix <br /> recorded on boring/wall 1099 and nro included within AppwerU. <br /> Soil 0amplou wore co <br /> ,,acted from each boring at five-toot intor- <br /> 2ter by 18- <br /> vala. The namplen wore colloct(id using a -.inch diamethin walled <br /> inch long split spoon namplor lined with 6-inch long <br /> broaq sail tubae. The sampler <br /> wou driven Ito entire length into <br /> d drop ham-nor. Sample collection <br /> undisturbed coil by a 240-pound no coil ad,-;,pablelan were collected for <br /> began at a depth of five fe0t;ground <br /> laboratory analysis below the water t . <br /> Soil complau uubm(tted for analyajo wore calected basctd on obvi- <br /> ous aigno of contamination (L-0- odors and coil discoloration). <br /> Samples were collected, preserved and transported under chain-of- <br /> custody in accordance with WatorWork'a Quality Accuranco/QualitY <br /> Select samples were analyzed for <br /> Control Plan (Appendix C). total potro- <br /> benzene, toluene, xYlanan, and othylbonzeno (ME)load by appro- <br /> , <br /> leum hydrocarbons (Tp,t) as gauolino, and organic <br /> priatO EPA and DIIS methodologies. Sequoia Analytical laborato- <br /> rias (DHS Cart No. 1210) performed the analyfl0s, <br /> The soil cuttings e wercovered with 6 mil plantic on-site. soil <br /> cuttings and groundwater will bn properly disposed of in a timely <br /> and appropriate mannor after reviewing the analytical results and <br /> receipt Of regulatory agency approval. <br /> Groundwater was monitored in accordance with waterWork's OA/OC <br /> to well installation, water 04m- <br /> Plan (Appendix C) . Subsequent well after purging a <br /> ploy were collected from the monitoring <br /> from each well. A well volume is <br /> minimus Of four wall volumes casing and Bend <br /> defined as the amount of groundwater In the well. Stabilization <br /> pack In the annular space surrounding trio casing <br /> of EC, pH, and temperature were checked after purging and before <br /> lection to ensure Samples collected are <br /> and after sample colurged water will remain <br /> representative Of fcr-ation water. The P <br /> on-site, in secured 55 gallon drums, until laboratory resulthe twater <br /> s are <br /> received. A proposal for treatment or disposal Of <br /> produced during development will then be prepared. Water sample <br /> collection and preservation was in accordance with waterWork's <br /> ix C) . The water Samples were analyzed by <br /> OA/QC Plan (Append XTPH as , and <br /> Sequoia Analytical laboratories for SE <br /> T <br /> organic lead by appropriate EPA and IN me, thodologiegasolines- Dailars <br /> with bottom emptying devices to reduce volatilization were used <br /> to colect groundwater amples. Greg Lyon of San Joaquin County <br /> publiclHealth Servicesawas present during well development and <br /> sampling. <br /> 4 <br />