AG 1996 07 22 - Laserfiche WebLink

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July 15, 1996 Mr. Blair Bennett Finance Department Cabarrus County P. O. Box 707 Concord, NC 28026 Re: Secondary Clearing - Coddle Creek Reservoir HDR Project No. 00187-045-018 Dear Blair: This is to provide a review of our efforts to facilitate clearing of the secondary growth of vegetation at Coddle Creek Reservoir. As you are well aware, the final impoundment of the reservoir can only proceed with approval from Mr. Terry Gross of the Division of Public Water Supply (PWS). Further, as you also well know, it is Mr. Gross's position that the reservoir may not be filled until the regrowth of vegetation subsequent to the initial clearing (secondary growth) has been removed from the basin to the level of the normal operating pool (646' msl). To assist in accomplishing the clearing of this secondary growth, HDR had contracted with the County to prepare a cleating plan and to provide the communication/coordination services necessary for approval and implementation of the clearing plan. HDR has performed most of the work outlined in our scope, plus other services beyond the scope that have been necessary and valuable for the implementation of the secondary clearing. Following is a summary of HDR's work on this project thus far, plus an outlook of what lies ahead. Task 100 - Preparation and Submittal of Clearing Plan HDR has extensively reviewed the reservoir with respect to the nature and extent of clearing necessary. Orthophotos and drawings of the site have been marked to represent the areas to be cleared, and types and amounts of clearing have been described and estimated. The mitigation areas, which need to be preserved and avoided, have also been clearly delineated in the maps and drawings for the contractors. Selected mobilization and access routes have been site reviewed with prospective contractors. Various alternative approaches to the clearing, or modifications thereof, have been evaluated, including: use of prescribed burning (HDR met at the reservoir with Robert Ward of the Division of Forest Resources); the potential mobilization of County personnel and equipment, including potential purchase and use of an aquatic harvester (HDR contacted harvester manufacturers and obtained pricing options); performing a water chemistry study to possibly justify minimization of clearing requirements (HDR water chemistry experts HDR Engineering, Inc. of North Carolina Suite 1400 Telephone 128 S. Tryon Street 704 338-1800 Charlotte, North Carolina Fax 28202-5001 704 338-6760