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'w �..r AMENDMENT TO WORKPLAN FOR THE FRED ALBERG, DELTA PUB AT 13430 NORTH LOWER SACRAMENTO ROAD, LODI, CALIFORNIA 1. The analytical detection limits shall be 0.005 ppm (mg/kg) for BTEX and 1.0 ppm for TPH as gasoline detection limits in soil matrices. 2. Backfill must be compacted and comply with the Uniform Building Code per San Joaquin County Building Department. Excavation wall slopes shall not exceed 1:1 or shall have lateral support to protect structural stability. Fill materials shall be clean loam or silty sand, and shall be compacted as noted above. 3 . Excavated volumes are estimated to be 300 cubic yards (8,100 cu. ft. ) . An area at least 50 ' x 200 ' shall be set aside at the southwest corner of the subject property for the proposed excavated materials. Contaminated soils stockpile must remain covered (top, all sides, and bottom) to protect against stockpiled materials leaching into adjacent soils or waters, and volatilization of contaminants into the atmosphere. Direct venting of volatile organic compounds (VOC's) from contaminated soil is subject to San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) regulation Rule 4651. The SJVUAPCD at 545-7000 shall be contacted before proceeding with the stockpile treatment as noted in the workplan. 4. The soil sampling for the excavation shall be a minimum of 1 per 20 feet. Minimum testing of the stockpiles shall be 2 samples per composite sample per 50 cubic yards. The proposed certified analytical laboratory shall be identified prior to commencement of work. The name, address, and telephone number shall be provided to PHS-EHD and all testing shall be done by a qualified sampler. The qualified sampler must be present on the date and time agreed upon with PHS-EHD for field work, which is to be witnessed by PHS-EHD Staff. 5. Should contamination be noted under the building, further work will be required. Excavation will not be allowed, and subsurface drilling will be required. 6. A notice of Finding will be prepared by PHS-EHD for distribution to the intermediate area of residents. 7. A written report, reviewed and signed by a Registered Professional in the State of California shall be prepared at the conclusion of the work, and shall summarize all work done.