Laserfiche WebLink
EDMUND G.BROWN JR. <br /> J �'o GOVEPNOR <br /> CAL/R O N M I A MATTHEW RODRIOUEZ <br /> Water Boards SECRETARY FOR <br /> ENVIRONMENTAL PROTECTION <br /> Central Valley Regional Water Quality Control Board <br /> RECO"'EIVED <br /> 7 August 2013 AUG 0 9 nn <br /> ENVOMMENTAL HEALTH <br /> PERMIT/sEwcEs <br /> W. Michael Carroll <br /> San Joaquin County Dept. of Public Works <br /> Solid Waste Division <br /> P.O. Box 1810 <br /> Stockton, CA 95201 <br /> LINER INSTALLATION INSPECTION REPORT FOR CORRAL HOLLOW LANDFILL, SAN <br /> JOAQUIN COUNTY <br /> The Corral Hollow Landfill, which is owned by San Joaquin County, is regulated by the Water <br /> Board under Waste Discharge Requirements (WDRs) Order R5-2013-0013 for Post Closure <br /> Maintenance and Corrective Actions occurring at the site. On 10 July 2013 Central Valley <br /> Water Board staff from the Compliance and Enforcement Unit as well as the Permitting Unit <br /> conducted a site inspection of the Corral Hollow Landfill to observe the progress of the synthetic <br /> liner installation over an area that contained uncovered refuse. <br /> The area with uncovered waste spans approximately 1.3 acres at the toe of the eastern landfill <br /> boundary and consists of both San Joaquin County and Caltrans property. As shown in the <br /> attached Photo Log, staff observed the foundation soils, anchor trenches, and V-ditching that <br /> had been laid down and formed. During this inspection multiple panels of liner were placed, <br /> marked for repairs, and welded. Staff also observed several locations where patches were <br /> taken for destructive testing, and panels marked indicating pass/fail for vacuum and or pressure <br /> testing of welds. Staff witnessed shear strength testing of welds at the onsite materials testing <br /> lab. <br /> During the inspection staff observed the liner that was being installed was wrinkled and did not <br /> appear to be lying flat over the foundation. According to the Discharger, ambient temperatures <br /> at the time of inspection had warmed the plastic liner allowing it to stretch. The Construction <br /> Quality Assurance technician assured staff that the liner would retain its flat shape once ambient <br /> temperatures cooled down. Staff requested pictures of the liner in the early morning hours to <br /> confirm that the liner tightened up. On 31 July 2013, the Discharger provided photos showing <br /> tightened plastic in the early morning hours and therefore this is no longer a concern. <br /> CIWQS SIID#13374257 <br /> KARL E. LONGLEY SCD, P.E., CHAIR ( PAMELA C. CREEDON P.E., BCEE, EXECUTIVE OFFICER <br /> 11020 Sun Center Drive#200,Rancho Cordova,CA 95670 1 www.waterboards.ca.gov/centralvalley <br /> RECYCLED PAPER <br />