CORRESPONDENCE_2008 (1/08 TO 6/08)

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j Page 2 of 2 May 1, 2008. The purpose of my site visit to observe conditions noted during our last site visit as well as to conduct landfill gas monitoring from the newly landfill gas probe GW -1A installed to replace GW 1. The results of my observation are noted as follow: Site Maintenance: Similar to last site visit, the entire landfill area was covered by overgrown dried vegetation which had made it impossible to determine whether the cover was intact and functioning as it should. The overgrown dried vegetation could also pose a fire hazard especially with summer approaching. Since the site had previously experienced a surface fire which had damaged a few of the extraction wells, CIWMB staff recommends that the landfill operator maintain the vegetation so that site cover inspection could easily be conducted and also to prevent surface fires from taking place which could cause a threat to public health and safety and the environment as well as damaging the landfill gas control system. Drainage Control: Abundant vegetation had grown in the perimeter drainage where the half - pipe corrugated metal drainage was located. It was also unclear where this drainage would drain the runoff into. Also, drainage on the southeast property boundary where grading had taken place did not appear to function as intended. The operator should provide adequate drainage of runoff for the entire site. Furthermore, depressions were noted across from the main entrance of the site. Please assure the operator will correct such depressions so to prevent ponding of runoff. GW3: Please have the operator to extend each individual probe heights within this monitoring well to allow for ease of monitoring. GW1A: Operator should assure this monitoring well is capped and locked. Please call (916-341-6354) or e-mail me if you have any questions. Thanks.............Gino 6/5/2008