FYI Our revised schedule has been approved by the COE. Eric Little Project Manager, UDR 5430 LBJ Freeway, Suite 1250 Dallas, TX 75240 Ph: 972.774.0552 Fx: 972.991.4113 Cell: 214.641.5761 www.UDR.com -----Original Message----- From: Walker, Standridge M SWF [mailto:Stan.Walker@usace.army.mil] Sent: Friday, October 29, 2010 2:07 PM To: Eric T. Little; Standridge Walker Cc: Tom Lamberth; Nick Jacob; Walker, Standridge M SWF Subject: Vitruvian Park 2007-00583 - Modification to Most Recent Enforcement Order - 27 October 2010 Eric, The schedule looks great! You guys are going to be busy during the holidays!! Your revised schedule is approved. Please let us know if the Corps can help in any way. Have a Happy Halloween! Thanks, Stan Walker USACE Regulatory Project Manager =========== Please assist the Regulatory Program improve its service by completing the survey on the following website: http://per2.nwp.usace.army.mil/survey.html Stan Walker Regulatory Project Manager 819 Taylor Street Ft. Worth, TX 76102 Phone:817-886-1740 Fax: 817-886-6493====== -----Original Message----- From: Eric T. Little [mailto:ELittle@udr.com] Sent: Friday, October 29, 2010 12:08 PM To: Walker, Standridge M SWF; Standridge Walker Cc: Tom Lamberth; Nick Jacob Subject: RE: Vitruvian Park 2007-00583 - Modification to Most Recent Enforcement Order - 27 October 2010 Stan, Attached is the revised and updated construction schedule. Please let us know if you have any questions or concerns. Thanks, Eric Little Project Manager, UDR 5430 LBJ Freeway, Suite 1250 Dallas, TX 75240 Ph: 972.774.0552 Fx: 972.991.4113 Cell: 214.641.5761 www.UDR.com -----Original Message----- From: Walker, Standridge M SWF [mailto:Stan.Walker@usace.army.mil] Sent: Thursday, October 28, 2010 3:07 PM To: Eric T. Little; Standridge Walker Cc: Tom Lamberth; Nick Jacob; Walker, Standridge M SWF Subject: RE: Vitruvian Park 2007-00583 - Modification to Most Recent Enforcement Order - 27 October 2010 Eric, Please reference our conversation this afternoon. Your request for modification to the enforcement order and milestone schedule is approved. We look forward to receiving the revised schedule, but you have advance approval to adjust the schedule per your evolving project plan. As a modification, this email will be the only formal response. We look forward to your report tomorrow as well. Sincerely, Stan Walker USACE Regulatory Project Manager ================================ Please assist the Regulatory Program improve its service by completing the survey on the following website: http://per2.nwp.usace.army.mil/survey.html Stan Walker Regulatory Project Manager 819 Taylor Street Ft. Worth, TX 76102 Phone:817-886-1740 Fax: 817-886-6493 -----Original Message----- From: Eric T. Little [mailto:ELittle@udr.com] Sent: Wednesday, October 27, 2010 10:26 AM To: Walker, Standridge M SWF; Standridge Walker Cc: Tom Lamberth; Nick Jacob Subject: Vitruvian Park 2007-00583 - Modification to Most Recent Enforcement Order - 27 October 2010 Stan: Per our conversation, Reach 3 has been dewatered and according to weather.com, the next chance for rain we have is a small (30%) chance next Tuesday. Because of this we decided to begin excavation work in this area yesterday. While the work area is dewatered and isolated from the active low flow stream via the pumping of the stream capacity around the work area down to the filtration basin located in Reach 1, it would make sense to complete all the work in waters of the U.S. inside Reach 3 at one time, including removal of the concrete channel bottom and installation of the wall, so that the area does not have to be accessed for construction work in multiple stages. Another benefit to performing all the excavation work at one time is that we may be able to take several days off of the total duration of the work in Reach 3, further reducing the exposure the creek bottom will have. Otherwise we will need to excavate down to the level of the existing concrete channel bottom, then excavate the wall section down to the proposed bottom of wall elevation, bring in a drill rig to drill the wall piers, form and pour the wall, wait up to 3 days to wreak the concrete forms, backfill the wall and then remove the concrete channel bottom and finally complete the excavation of the channel bottom to the proposed elevations. This sequence will cause us to re-access the area several times, possibly raising the risk of sedimentation in the stream if a rain event occurs. If you are in agreement and approve this change, I will modify and update the construction schedule and re-send to you. Also, please note that the contractor has confirmed that we should be able to complete the creek excavation and start wall construction by next by next week (pending the small chance of rain on Tuesday) if this is approved. Thanks, Eric Little Project Manager, UDR 5430 LBJ Freeway, Suite 1250 Dallas, TX 75240 Ph: 972.774.0552 Fx: 972.991.4113 Cell: 214.641.5761 www.UDR.com