WORK PLANS - Laserfiche WebLink

Home Browse Search

A d c d C GeoEnvI1,011 ,111- ental , In 20 October 2011 AGE-NC Project No. 98-0504 Ms. Vicki McCartney U, San Joaquin County Environmental Health Department 600 East Main Street Stockton, California 95202 Subject: Well Destruction Work Plan (Ole" FAST & EASY MART 244 West Harding Way, Stockton, California Dear Ms. McCartney: At the request of Mr. Mike Ali, Advanced GeoEnvironmental, Inc. (AGE) has prepared this work plan for the destruction of three ground water monitoring wells at 244 West Harding Way, Stockton, California (site). The location of the site is illustrated in Figure 1. Locations of structures, borings and monitoring wells related to the site are illustrated in Figure 2. Site background information was summarized in the AGE-prepared, Closure Summary Report, dated 13 December 2010. INTRODUCTION In a letter dated 10 August 2011 (Appendix A), the San Joaquin County Department of Environmental Health (SJCEHD) directed preparation of a work plan to destroy ground water monitoring wells at 244 West Harding Way, Stockton, California in accordance with the SJCEHD Standards For Well Construction and Destruction. SCOPE OF WORK A total of three ground water monitoring wells (MW-1 through MW-3) have been installed on-site as part of the ongoing subsurface investigation. Boring logs documenting observations and well construction details of the wells have been included in Appendix B. Based on results from historical investigations(soil and ground water sampling)well MW-1 is the only well installed at the site with reported petroleum hydrocarbon impact at the site. Therefore, AGE proposes to overdrill well MW-1 over its entire installed depth (45 feet below surface grade) and to pressure grout wells MW-2 and MW-3. Analytical results of ground water samples is summarized in Table 1.