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California Regional Water Quafit3�t__'ontrol Board '� . <br /> Central Valley Region ' d. <br /> Steven T.Butler,Chair <br /> Winston H.13ickox Gray Davis <br /> Secretary for Sacramento Main Office Governor <br /> Environmental Internet Address: http://www.swrcb.ca.gov/--iwgcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> 12 October 1999 <br /> Mr. Wes Johnson <br /> County of San Joaquin,Department of Public Works <br /> P.O. Box 1810 <br /> Stockton, CA 95201 <br /> RETIIEW OF'MRNEYLAM SANITARYLANOFILL, T19IRD QUARTER 1999, <br /> CROVMWA.TER ANDS17RFACE WA TER ONITO CREPORT,"SAll!'.fO,4Qlff/V <br /> COUNTY(CA SEFILE#2598) <br /> Regional Board staff has reviewed the Harney Lane Sanitary Landfill, Third Quarter 1999, <br /> Groundwater and Surface Water Monitoring Report, dated 15 October 1999. Staff understands that the <br /> county has submitted the third quarter analytical results to fulfill the requirement for resampling as <br /> described in our 18 August 1999 letter. Volatile organic compounds were not detected in any of the <br /> groundwater samples during the third quarter, so a release is not confirmed and an amended Report of <br /> Waste Discharge and an Evaluation Monitoring Plan will not be required at this time. <br /> As also indicated in our 18 August 1999 letter,the areas of differential settlement noted on the landfill <br /> cover surface must be repaired. As the county is aware,maintenance of the landfill cover to correct the <br /> effects of settlement and to prevent ponding is required under the California Code of Regulations, Title <br /> 27, Section 21090, Closure and Post-Closure Maintenance Requirements for Solid Waste Landfills; and <br /> the Code of Federal Regulations, 40 CFR 258.61,post-closure care requirements. Additionally, the <br /> California Code of Regulations [CCR Title 27, Article 2, Section 21090 (b)(1)(E)] states that the repair <br /> work to the low-hydraulic-conductivity layer shall be carried out in accordance with an approved <br /> Construction Quality Assurance (CQA)plan. Correction of this settlement is requested prior to 31 <br /> October 1999. Please submit a plan and schedule for repairs immediately <br /> The Monitoring Report Compliance Checklist has been attached for your review. It will be included in <br /> the case file for the Harney Lane Sanitary Landfill. If you have any questions regarding these <br /> comments,please telephone me at my new extension, (916)255-3137. <br /> WENDYARANO <br /> Associate Engineering Geologist <br /> Attachment <br /> CC. Robert McClellon,RENS,Public Health Services, Environmental Health Division <br /> WWA <br /> C:\mydocuments\sanjoaquin\hameyln\3Q991tr <br /> California Environmental Protection Agency <br /> �a Recycled Paper - <br />