ARCHIVED REPORTS XR0001633 - Laserfiche WebLink

Home Browse Search

Ah KL E IN F EL D E R File No 20-3769-01 November 21, 1994 • • TPH Purgeable by EPA Method 8015NV5030 (gasoline range) • BTEX by EPA Method 8020 • TPH Extractable by EPA Method 3550 (kerosene range) The samples will be analyzed on a normal laboratory schedule requiring approximately two weeks (ten working days) for completion Once the samples have been analyzed, the results would be evaluated for use of the soil as excavation backfill, on-site treatment, and/or'off-site treatment/disposal The results of that evaluation would be summarized in a short report which would be submitted to the client and the SJCEHD upon completion That short report could be used to evaluate some disposal/remediation alternatives for the soil Task B07- Materials Testing/Inspection of Excavation Backfill Materials Currently, it is proposed that the excavation be backfilled from the excavation bottom to a depth • of 30 feet below grade with a pea gravel backfill Those materials, when properly placed, will provide a stable surface without the addition of excess water From a depth of 30 feet to existing grade the excavation will be backfilled by your excavation contractor with Engineered Fill The Engineered Fill should be moisture-treated at the surface, placed into the excavation and wheel- rolled to 90 percent relative compaction (ASTM D-1557-86) Every reasonable effort should be made to limit excess water in the Engineered Fill Observation of the pea gravel placement and compaction testing of the Engineered Fill would be supplied by our office Task B08 - Reporting Upon completion of the field activities and receipt of the analytical results, a report of findings will be prepared for client and agency review The report will include • A description of all activities, results, and conclusions of previous soil and groundwater assessments performed in March/Aprnl 1994 • A description of the field activities, observations, and protocols i • Litholognc logs ETH and WC/94 f I I 8 o e Copyright 1994 Kleinfelder Inc Page