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V <br /> ENVIROAkTIENTAL HEAL'IT4bEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> --kDonna K. Heran, R.E.H.S. Unit Supervisors <br /> ; <br /> Director 304 East Weber Avenue,TIMM Floor Carl Borgman,R.E.H.S. <br /> Al Olsen, R.E.H.S. Stockton,California 95202-2708 Mike Huggins, R.E.H.S., R.D.I. <br /> Program Manager ' Douglas W.Wilson, R.E.H.S. <br /> Laurie A. Cotulla, R.E.H.S. Telephone: (209)46 8 13 420 <br /> Margaret Lagorio,R.E.R.S. <br /> Program Manager Fax: (209)464-0138 i Robert McClellon, R.E.H.S. <br /> Website:www.sjgov.or�g/ehd/,; Jeff Carruesco, R.E.H.S. <br /> ROBERT STRONG <br /> RUTH STRONG PROPERTY <br /> 1871 MIDDLEFIELD <br /> STOCKTON CA 95204 I <br /> sj <br /> RE: RUTH STRONG PROPERTY I i SITE CODE: 2054 <br /> 5157 W BUSINESS LOOP 205 <br /> TRACY CA 95376 <br /> WORKPLAN:Soil and Ground Water Remediation Work Plan Add endum <br /> DATED: November 7. 2005 <br /> PREPARED BY: Advanced GeoEnvironmental, Inc. (AGE) <br /> APPROVED E Conditions listed below must be met in order for <br /> this approval to be valid <br /> 7 <br /> K <br /> �N_'O-F-ITVV"W- <br /> ITWV"W' <br /> -TS" - <br /> - <br /> - <br /> - <br /> 'V <br /> 'U D"M DE MA :t=- A N7=-NiM` <br /> .529671-0-su A (3 <br /> 1) Over excavate approximately 1,500 cubic yards of soil to 15.�to 17 feet below surface <br /> 0 <br /> grade (bsg) in a dimension as diagramed on the map of the above-mentioned work <br /> plan. AGE estimated approximately 700 cubic yards of soil! ay not be impacted <br /> and could be replaced back into the excavation on top of the clean backfill material <br /> (sand, gravel and rock) and at a depth above the groundwat6t table. <br /> 1) Excavated soil must be placed on top of impermeable protective sheets. <br /> 2) Any excavated soil stockpile placed on site overnight must be covered with <br /> impermeable covers, the covers secured (preferably tied down) in place, and the base <br /> of the stock pile encircled with barriers that are capable of absorbing and preventing <br /> any potential runoff. <br /> 3) Line the top of the imported clean backfill material within t1le excavation with an <br /> impermeable liner before replacing any excavated soil back a to the excavation. <br /> 4) Only soil that has be characterized as non-impacted may be placed into the <br /> excavation. li <br /> 5) Implement the proposed work by January 20, 2006. <br /> d 2, <br /> , V. F <br /> None <br /> DATED December 19, 2005 B <br /> y <br /> Cc: CRWQCB, Central Valley Region—Jam esL. L. Barton PG'� <br /> Cc: Advanced GeoEnvironmental, Inc. --Brian Millman <br />