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Coppell Trade-CS060303COl'FELL March 3, 2006 Dayton Macatee, P.E. 6440 N. Central Expressway, Suite 414 Dallas, TX 75206 Fax: 214-373-1180 RE: Coppell Trade Center/Location Erosion Control Plan Review Dear Mr. Macatee: The City of Coppell has reviewed the erosion control plan that was submitted for the above referenced proper¢ and has the following comments to offer: The portion of the silt fencing shown along the bank of the channel is currently installed. This silt fencing is not completely effective. The banks are eroding and the silt is collecting in the channel bottom. The silt needs to be cleaned from the channel bottom, the banks repaired, and adequate silt fencing placed along the top of the bank. Although not currently installed, the silt fencing around the stockpile should be adequate. As stockpiles are not allowed on the site once construction is completed, a letter requesting permission for the stockpile to remain will be required. The duration for which the stockpile will remain and measures to remove the stockpile if it remains past the specified duration should be addressed in the letter. Since no grass has been established north of the channel, the possibility of xvind erosion, which has not been addresses by this plan, exists. Please present a plan to address wind erosion when climatic coaditions make the site susceptible. It is the City's understanding that the purpose of this plan is for the inlerim. Please provide a statement detailing this interim time period and provide provisions for stabilizing the site in the event the construction on the remainder of the site does not commencc prior to thc cnd of thc intcrim period. If you have any questions, please contact this office at your convenience. Sincerely, Graduate Engineer Office Phone: (972) 304-3681 Fax:(972)304-3570 cc: Bennett Ratliff fax 972-462-0020