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California R4ional Water Quality Control Board <br /> Central Valley Region .,.. <br /> Robert Schneider,Chair Gray Davis <br /> Winston H.Hickox Governor <br /> Secretary for Sacramento Main Office <br /> Environmental Internet Address: http://www.sw b.ca.gov/— gcb5 <br /> Prmeclion 3443 Routier Road,Suite A.Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX�66,: ,$3�D <br /> U � � \\\vvvllll Il ll���-- 22 November 2002 <br /> VIA FACSIMILE <br /> NOV 2 5 2002 <br /> Ramon Batista T HEALTH <br /> City of Lathrop ENVIRONMEN <br /> 16775 Howland Road pERMITISERVICES <br /> Lathrop, CA 95330 <br /> PROPOSED WELL DESTRUCTIONS, CROSSROADS TREATMENT FACILITY LATHROP, <br /> SAN JOAQUIN COUNTY <br /> On 21 November 2002, Mike Anderson of Nolte Associates, Inc. requested Regional Board permission <br /> to destroy selected groundwater monitoring wells at the City of Lathrop's Crossroads wastewater <br /> treatment facility. The well destructions are required to allow construction of wastewater storage ponds <br /> at the facility. The following wells are proposed for destruction: MW-1,MW-2,MW-3, and MW-4. <br /> Mr. Anderson stated that the well destructions would be performed in accordance with State and County <br /> requirements. ft <br /> Because the wells proposed for destruction are not part of the groundwater monitoring well network that <br /> is required as part of Waste Discharge Requirements Order No. 5-01-251, the Regional Board has no <br /> objection to the destruction of the wells. However,because the wells are in an area where wastewater <br /> will be stored, future access to the wells will not be possible, and further development of the area for <br /> wastewater treatment is possible,the wells must be drilled out and sealed with a neat cement/bentonite <br /> slurry consistent with San Joaquin County Environmental Health Division Well Standards Section <br /> 13.17.6. Pressure grouting the wells is not an acceptable means of well destruction in this instance. <br /> Please transmit the copies of the completed San Joaquin County Drilling Permits describing the well <br /> destruction when the work is complete. If you have any questions,please telephone me at <br /> (916) 255-3116. <br /> TIMOTHY R. O'BRIEN <br /> Waste Discharge to Land Unit <br /> San Joaquin River Watershed <br /> cc: Mike Huggins, San Joaquin County Environmental Health Department, Stockton <br /> Mike Anderson,Nolte Associates, Sacramento <br /> John Onken, Conco West,Manteca <br /> California Environmental Protection Agency <br /> rZ i Recycled 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 htto�//w v swrcb ca eov/rwacb5 <br /> vAsw Joaquin N.15%.MObfi. R iett 1 OIDOC <br />