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Odic Environmental Page 3 of 4 • Total Petroleum Hydrocarbons as gasoline and diesel by EPA Test Methods 8260B and M8015; • Benzene,toluene,ethylbenzene and total xylenes(BTEX);and fuel oxygenates by EPA Test Method 826013;and • Total Lead by EPA Test Method 6010/7000 series. Reporting: Upon completion of the Phase II Investigation,a report will be prepared to document the methods used, actual boring locations,results and conclusions. All supporting documentation including boring logs, laboratory reports and chain-of-custody documentation will be included. Site maps will be prepared to illustrate the distribution of any identified contamination. Pre-drilling Activities • Perform Site Visit to verify existing conditions and pre-mark boring locations and notify Underground Service Alert(USA)of the intent to excavate or drill and use standard care to avoid potential damage to subsurface utilities. • A Site-specific Health and Safety Plan(Level D Health&Safety according to OSHA CFR 1910.120, will be prepared. • San Joaquin County Drilling permit Field Investigation • A limited access push probe rig with a licensed operator will be mobilized to the site to complete the proposed scope of drilling and sampling activities.All down-hole sampling equipment will be cleaned before starting a soil boring,with a non-phosphate detergent and water before each use. • This bid proposal includes cost for mobilization and demobilization,liners,bentonite,asphalt patch,fuel, and tubing. Odic will backfill each boring with bentonite pellets. Each borehole will be abandoned/filled with bentonite,and restored to pre-drilling condition via applying patching materials. • Collect soil samples at 5-foot intervals,or at significant changes in lithology.Attempt to collect the lowermost sample at or immediately above the groundwater level if groundwater is encountered during drilling. • If groundwater is encountered grab samples may be collected down hole(either through the drive rods or temporary installed 1-inch PVC well screen)using a peristaltic pump and disposal polyvinyl tubing under low flow conditions. • Monitor the headspace of each sample for the presence of volatile organic compounds using a photo- ionization detector(PID)or flame-ionization detector(FID). • The soil boring will be logged using the Unified Soils Classification System under the supervision of ODIC's State Professional Geologist(PG)or Registered Professional Engineer. • Submit 16 soil samples for analysis of TPH as gasoline and diesel,BTEX,MTBE and fuel oxygenates, and Total Lead via EPA Methods 8015,8260,and 6010. Data Evaluation&Reportine • Prepare a report to document the methods used and present the results of our investigation.Based on the results,present our conclusions and provide recommendations for further investigation and/or remediation. • Report shall be prepared by State Registered Geologist and reviewed by State Registered Environmental Assessor. • Report shall contain boring log,site plot plan,site location map,regional hydrogeology,laboratory reports&chain of custody.