Laserfiche WebLink
WORK PLAN <br /> Mobilization <br /> Shipping and receiving of materials will be coordinated at the work site. This may <br /> require setting up temporary fencing and taking deliveries of the materials a day in <br /> advance of the arrival of the equipment. <br /> Site Setup <br /> The Proposed Pilot Test Location Map below presents the proposed layout at each of <br /> the three areas. City understands the need to minimize the impact to the businesses in <br /> the shopping center; however to ensure public safety, a barricaded work zone will need <br /> to be established that includes an operational and buffer zone around the exclusion <br /> zone. As presented in the map, an approximately 40 ft by 60 ft work zone secured by <br /> temporary construction chain-link fence (with optional privacy screens if required ) will be <br /> defined at the PRB and "D" Well Area. The work zone at the "E" Well Area will be <br /> irregular to conform to the limits of the asphalt cover and to allow the field crew access <br /> to monitoring well E-11A for pressure influence monitoring during the injection . <br /> A fire hydrant approximately 40 feet southeast of the "D" Well injection area will supply <br /> water for operations at both the PRB Emplacement and "D" Well Areas. A drive-over <br /> hose ramp will be used to run the water hose across the traffic lane with appropriate <br /> signage while supplying water to the PRB Emplacement Area . The water hose will not <br /> be exposed to traffic while going toward the "D" Well Area . Another fire hydrant is <br /> positioned at the corner of Jefferson Avenue and the driveway into the shopping center <br /> just northeast of Old Navy; it may be used to supply water to the injection operations at <br /> the "E" Well Area without affecting traffic. <br /> Prior to mobilizing to the site, a utility locating service will be hired to survey and mark- <br /> out existing underground utilities. Boreholes will be positioned at least 5 feet away from <br /> any marked utility location . <br /> Monitoring Well Installation <br /> A 2-inch monitoring well in the "PRB" Emplacement Area will be installed prior to <br /> commencing injection . The well will provide the project team with baseline and post- <br /> injection groundwater data and also allows for the monitoring of pressure influence <br /> during the injection . The monitoring well will be constructed following the specification <br /> below: <br /> O Total depth of 18 feet below ground surface <br /> O Screened from 8 feet to 18 feet with 0 .010 slot <br /> O Filter pack from 7 to 18 feet with 2/12 sand <br /> O Bentonite from 6 to 7 feet <br /> O Cement grout from 0 .5 to 6 feet <br /> ▪ 8-inch traffic rated flush-mount manhole <br /> Injection Borehole Abandonment <br /> After injection operations are completed , all borings will be abandoned by grouting via a <br /> tremie pipe to the ground surface by using a cement/bentonite slurry. <br /> ATTY/AGR/2016/AMENDMENTS/AMEND NO. 1 REGENCY — SEQUOIA STATION ACCESS AGREEMENT <br /> REV: 09-29-16 VR <br /> Page 4 of 5 <br />