• On Saturday, July 8th and Sunday, July 9th 2006, no on-site activities occurred. • On Monday, July 10th, 2006, EPA crews continued to backfill excavations and prepare for the sewer cleaning and Cured In Place Pipe (CIPP) installation. • On Tuesday, July 11th, 2006, crews continued to backfill excavations and prepare for the sewer cleaning and CIPP installation. Sewer cleaning operations commenced, however; the subcontractor had product already in their vac truck. US EPA required the subcontractor to empty and clean their truck prior to its use on this site and these operations were suspended for the day. After further inspection, the truck (which is brand new) was not yet labeled or licensed and this activity will be suspended until the subcontractor is ready to perform the work correctly. • On Wednesday, July 12th, 2006, the START contractor installed data recording instruments into 3 on-site monitoring wells to assist with determining if the proposed slurry wall injection around the sewer is effective. Backfill operations also continued. • On Thursday, July 13th, 2006, EPA crews continued to backfill previously excavated areas. • Friday, July 14th 2006, EPA drain contractor Jet-vacuumed and video documented the 15 inch drain areas in the southwest corner of Bon Brae and Harper Roads, the northeast corner of Bon Brae and Harper Roads into the car wash area, and also Jet-vacuumed the 300 ft section of 48 inch drain on Harper Road south of Bon Brae Road. Excavation equipment was decontaminated and will be demobilized next week.
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