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Page 6 of 8 <br /> determine an approach forward so that we could potentially complete well repairs or <br /> abandonment this year, before the ground south of the site gets too wet from rains. <br /> Thanks in advance, <br /> Sandi Shearer <br /> From: Shearer, Sandra/RDD <br /> Sent: Wednesday, October 17, 2007 6:29 PM <br /> To: 'matt.graham@bnsf.com'; 'Dave Buccolo (dbuccolo@cctrailroad.com)'; <br /> 'hector.ga rcia@ bnsf.com' <br /> Subject: FW: BNSF Railway - Easements and Access <br /> Hi, Dave, Matt, and Hector, <br /> I am a consultant with CH2M HILL and manage groundwater monitoring for the Koppel <br /> Stockton Terminal, 2025 West Hazelton Avenue, Stockton. I am contacting you regarding <br /> the status of two monitoring wells that have been covered by a dirt access road leading up <br /> to the Burlington Northern Santa Fe Railroad Tracks. I've previously spoken with both <br /> Dave and Matt regarding the wells. A site map showing the wells (KP-5s and KP-5D)is <br /> attached. The wells are covered by 4 feet of dirt. I am seeking your input on the following <br /> questions. Additional details on the monitoring wells are also included. <br /> 1. Is there an option of permanently relocating the access ramp to allow us to restore <br /> our monitoring wells at their existing locations? <br /> 2. If the answer to Number 1 is "no", may we temporarily uncover the monitoring <br /> wells? This would require removing soil for about half of the access ramp. <br /> 3. If the answer to Number 2 is "yes", would we be responsible for rebuilding the <br /> access ramp after we uncover the wells, or would Central California Traction or <br /> BNSF be able to do this? <br /> 4. Is the existing access agreement inclusive to allow construction activities <br /> associated with uncovering the monitoring wells and abandoning or replacing the <br /> monitoring wells? <br /> The monitoring wells were installed in 1999 under the attached BNSF access agreement. <br /> My understanding is the access road has been present for a number of years, but the <br /> access road was realigned to its current location during construction of new rail lines this <br /> summer. <br /> We surveyed the exact location of the monitoring wells and confirmed they are covered by <br /> 4 feet of soil. The attached PDF shows the approximate location of the wells as indicated <br /> by the man standing on the ramp. The JPG files show the exact location of the wells as <br /> indicated by the highest stakes on the ramp (the other stakes are offsets in case the <br /> stakes on the ramp are removed). <br /> I talked to a licensed driller(Spectrum Exploration in Stockton, California) regarding <br /> options for recovering these wells.The driller does not believe the wellheads can be <br /> successfully extended 4 feet to the top of the access ramp. Unless the access ramp can <br /> be permanently moved and our existing monitoring restored at near the original ground <br /> surface, the driller recommends abandoning the wells and installing them at a new <br /> location. One of the wells is relatively deep, so this would an expensive undertaking. If the <br /> wells are abandoned, the well locations will need to be fully uncovered to allow access by <br /> a drill rig. <br /> Thanks in advance. Feel free to call to discuss. <br /> Sandi Shearer, P.E. <br /> Environmental Engineer <br />