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onCtrol Board <br /> California Regional Water Quality <br /> = <br /> Central Valley Region <br /> #; r <br /> Robert Schneider,Chair Gray Davis <br /> Governor <br /> Winston H.Hickox Sacramento Main Office <br /> secretaryfor Internet Address: http://www.swrcb.ca.gov/mgcb5 <br /> Environmental <br /> 003 <br /> Protection 3443 Routier Phone o(916)255-3ad,Suite A'000 FAX(916)255 3ia 015827 3 <br /> 29 November 2001 <br /> Mr. Cecil Dillon Mr. Richard Family <br /> Ltds <br /> Mr. Navtej Dhingsa <br /> Bokides Family Ltd. Part. First Invest. Flag City, Inc. <br /> Flag City Ltd. Partnership 5517 Coronawood Lane <br /> 1820 W.Kettleman Lane, Suite E 6421 Capitol Avenue Carmichael, CA 95608 <br /> Lodi, CA 95242 Lodi, CA 95242 <br /> REVIEW DOMESTIC WATER WELL ABANDONMENT WORK PLAN <br /> CLEANUP AND ABATEMENT ORDER (C&A)6421 CAPITOL A ,NO. SoIDI, SA N JOA QUIN COUNTY, <br /> 00700 <br /> I reviewed the 21 September 2001 Domestic Water Well Abandonment Work Plan (Workplan) and the <br /> 26 November 2001 Revision to Domestic Water Well Abandonment Work Plan (Workplan Addendum) <br /> submitted by Advanced Ge oEnviromnental, Incorporated(AGE) for the Flag City Chevron site. The <br /> Workplan and Workplan Addendum present a methodology to destroy Rocky's Domestic water supply <br /> well (RDW-1). <br /> has <br /> en <br /> RDW-1 is approximately 150 feet southwest of the Flag Cite liter(ot 1te,IanMMarch 2000, a down hole identified <br /> in the well at a maximum concentration of 20 micrograms p (µSi ) <br /> video log of RDW-1 identified perforated intervals at 67 to 75 feet, 87 to 104 feet, and 130 to 142 feet. <br /> Well construction details show the well is sealed from the surface to 50 feet and gravel-packed from 50 to <br /> 150 feet. This well construction has created a vertical conduit for shallow groundwater to move into <br /> deeper water bearing zones. In our 8 August 2001 letter,Board <br /> d sta frrequested the destruction of RDW-1 <br /> because of the concern of impacting deeper high quality <br /> AGE proposes to remove pumps and piping from RDW-1,place explosives inside the well at five-foot <br /> spacing from 140 feet to the surface, fill the well with neat cement, and perforate the PVC casing with the <br /> explosive charges. Once the explosives are detonated, the weight of the neat cement will force the <br /> cement out into the gravel pack and surrounding geologic formations sealing the well column. The work <br /> as described in the Workplan and Workplan Addendum is appropriate and necessary to eliminate the <br /> vertical conduit created by this well. <br /> The Workplan is approved with the following additions: <br /> The neat cement sealant must be placed by use of a tremmie pipe extended to within ffve feet of <br /> the bottom of the well. <br /> Apply for a well destruction permit from the San Joaquin County Environmental Health <br /> Division. <br /> California Environmental Protection Agency <br /> rLdRecycled Paper <br /> The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. <br /> For a list of simple ways you can reduce demand and cut your energy costs,see our web-site at http://www.swrcb.ca.gov/mgcb5 <br />