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DocuSign Envelope ID:098B7080-775F-4220-9432-FB15222455EA <br /> 1 . Purpose: <br /> Orange County, North Carolina is releasing this Request for Qualifications (hereafter <br /> `RFQ') seeking responses from qualified Providers to provide professional engineering <br /> guidance to Orange County and multi-disciplined general engineering services, as <br /> needed, in support of the existing Emergency Action Plan (EAP) for the Lake Orange <br /> Dam. Specifically, Orange County is seeking to retain a qualified consulting firm <br /> (hereafter`Provider') on an annual contractual basis to serve Orange County in the formal <br /> role of "Owner's Engineer" as defined within the Lake Orange Dam EAP. An EAP <br /> response would only be activated by Orange County (hereafter `County') in response to <br /> an unusual event or an emergency event at the Lake Orange Dam. The resultant contract <br /> with the successful Provider is intended to be renewed on an annual basis, subject to <br /> Provider performance and available budget. <br /> 2. Background: <br /> The Lake Orange Dam (hereafter `Dam') is located at 1221 Lake Orange Road in <br /> Hillsborough, North Carolina. The Dam was constructed in the late 1960s via an earthen <br /> berm and concrete spillway/channel across the East Fork of the Eno River so as to create <br /> Lake Orange, a +/-150 acre surface water impoundment located within the Neuse River <br /> basin. The primary uses of Lake Orange are public water supply and maintenance of <br /> minimum dry weather flows in the East Fork of the Eno River. Limited recreational <br /> activities on Lake Orange are permitted as secondary uses. Lake Orange has a normal <br /> pool elevation of 615-ft (MSL) and has a drainage area of approximately 5,850 acres. <br /> The Dam structural height is approximately 40-feet with a normal pool freeboard of <br /> approximately 15-feet. The Dam crest length is approximately 1,100-feet and the Dam <br /> crest width is approximately 16-feet. The original construction of the Dam was funded via <br /> issuance of County bonds. The County is the current owner and operator of Lake Orange <br /> and the Dam. See Exhibit A for site location, driving directions and site photographs. <br /> See Exhibit B for an aerial image of the Dam and associated appurtenances. <br /> The Lake Orange reservoir is classified by the North Carolina Department of <br /> Environmental Quality (NCDEQ) as Water Supply II — Undeveloped (WS-II) surface <br /> waters, with additional NCDEQ classifications as High Quality Waters (HQW) and <br /> Nutrient Sensitive Waters (NSW). Descriptions of North Carolina surface water <br /> classifications are viewable online at: https://deg.nc.gov/about/divisions/water- <br /> resources/planning/classification-standards. <br /> In 2011 , NCDEQ classified the Dam as a Class C (High Hazard) dam, as defined in 15A <br /> NCAC 2K.0105 (Classification of Dams). The High Hazard classification of the Dam <br /> warrants that an EAP is maintained by the County and that any/all proposed repairs or <br /> alterations to the Dam be reviewed and approved by NCDEQ prior to construction, as <br /> defined in 15A NCAC 02K.0201 (Obtaining Approval for Dam Construction, Repair, or <br /> Removal). The NCDEQ tracking number for the Dam is ORANG-005. <br /> The most current version of the Dam EAP was created by the County using guidelines <br /> established by the Federal Emergency Management Agency (FEMA). The Dam EAP <br /> 2 <br />