Laserfiche WebLink
J %05/09/96 THU 12:32 FAX 916 361 3047 IT CORPORATION / RATHER IM 003 <br /> DnMNAMNAL TSCHNOLOGY cd91Pa U%TrCN <br /> Mr. Harlin Knoll <br /> Page 2 of 3 <br /> Before undertaking any field work, IT will prepare a site-specific Health and Safety Plan as <br /> required by OSHA. All groundwater purged during the sampling will be stored in one 55-gallon, <br /> drum and stored on-sine pending laboratory analysis. It is assumed that the groundwater will be <br /> free of gasoline hydrocarbons and the drum of water can be discharged on sits. <br /> Task 2. Closure Report <br /> To document the results of the groundwater sampling activities aM formally request <br /> enviromnental site closure, a Closure Report will be prepared. The report will include the <br /> lab"Mr3r results from the grnnndwater sampling and a chronology of previous environ=HW <br /> corrective actions at the site. To write the chronology, a fele review will be conducted at the <br /> offices of the PHSIEfID_ The chronology and carrent groundwater conditions will form the <br /> basis of the Closure Report which will follow the Tri-Regional Board Staff Recommendations <br /> For Preliminary Investigation and Evaluation of Undergrouud Tank Sites Appendix B. <br /> 'ask 3. Well Abandonment <br /> Following regulatory approval of the Closure Report, the three monitoring wells will be <br /> abandoned under PHSIEHD permit. To abandon the wells, they will be filled with a cement <br /> grout and put under pressure. This "pressure grout" method fills the well and filter pack with <br /> cement, eliminating it as a conduit to groundwater. The well cover will be removed axed the <br /> surface will be patcbed with cement. <br /> SCHEDULE <br /> The three work tasks can be completed in a total of 10 weeks. The duration of each of the tasks <br /> is as follows: <br /> Task 1. Groundwater Sampling <br /> Workplan and Health & Safety Plan 1 'S+lxeek <br /> Regulatory Review and Approval of Work Plan I Week <br /> Gxoundwater Sampling (1 Field Day) 1 Week <br /> Task 2. Closure Report <br /> File Review 1 Week <br /> Report Pzeparation 2 Weeks <br /> Regulatory Review of Closure Report 3 Weeks <br /> Task 3. Well Abandonment (1 Field Day) I Week <br /> rrcb4m=m2na a*mnW c7vmvd suhvdmv or mremaEbnal recnnaiVy carpereffm <br />