Laserfiche WebLink
Memo <br /> To: Johnny Yoakum Project: 0064470063 <br /> From: Heidi Dietrich-Foronda <br /> Tel: (510) 663-4133 <br /> Date: March 7, 2014 <br /> Subject: Soil Vapor Probes Destruction <br /> Tracy Sites <br /> Tracy, California <br /> On behalf of Chevron Environmental Management Company, AMEC Environment & <br /> Infrastructure, Inc. plans to destroy seven soil vapor probes installed February 27, 2014, at 990 <br /> Beechnut Avenue (APNs: 23407001 and 23407006), 880 Beechnut Avenue (APN: 23407004), <br /> and Fourth Street at North Central Avenue (City right-of-way), Tracy, CA. The vapor probes <br /> were constructed to 5.5 feet below ground surface and will be destroyed by pulling out the <br /> tubing by hand and hydrating the bentonite grout to ensure a seal (see well construction Figure <br /> 1). The locations and boring IDs of the vapor probes are shown on Exhibits A, B, and C. <br /> We assumed a cost of $375 for the Inspection Activity Fee for each site and a $125 destruction <br /> fee for each well. A check for a total of$2,000 will be sent to your office by March 12, 2014. <br /> Per our phone conversation on March 6, 2014, we would like to document that semi-permanent <br /> soil vapor probes were constructed in each soil boring. An illustration of the probe construction <br /> is shown on Figure 1. No neat cement grout was used during the construction which is contrary <br /> to the grout specified on the Well & Boring Permit Application. We apologize for this mix-up. <br /> Also, due to difficult subsurface conditions, a boring was not advanced (and no soil vapor probe <br /> was constructed) on the UPRR property on Fourth Street. <br /> If you have any questions, please feel free to contact me, Mari Gilmore, or Zachary <br /> Lauffenburger at 510-663-4100. <br /> Sincerely yours, <br /> Heidi Dietrich-Foronda <br /> Environmental Scientist <br /> AMEC Environment & Infrastructure, Inc. <br /> Direct Tel.: 510-663-4144 <br /> Direct Fax: 510-663-4141 <br /> E-mail: heidi.dietrich@amec.com <br /> Enclosures: Well & Boring Permit Applications <br /> Exhibits A, B and C <br /> Figure 1 <br /> AMEC Environment&Infrastructure, Inc. <br /> 2101 Webster Street, 12th Floor <br /> Oakland,California <br /> USA 94612-3066 <br /> Tel (510)663-4100 <br /> Fax (510)663-4141 <br /> www.amec.com <br />