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Department of Environment, <br />Agriculture, Parks & Recreation <br />[III UTINTOT = <br />As you are aware, the Eno River Hydrilla Management Task Force has been working since <br />2007 to address the infestation of the Eno River with Hydrilla verticfflata (hydrilla), a highly <br />invasive submerged aquatic weed native to Asia. Hydrilla is considered to be the biggest threat <br />to the natural resources of Eno River State Park. In Orange County, hydrilla is known to infest <br />the Eno River, Sevenmile Creek, Lake Orange, Compton's Pond, Lake Arrowhead, and the <br />West Fork Eno Reservoir. <br />In June 2014, the Task Force initiated a two-year pilot study to evaluate the use of an EPA- <br />approved herbicide (Fluridone) to manage hydrilla within a section of the Eno River. The results <br />of the first year of the study are very encouraging. The low concentration of Fluridone that was <br />added to the Eno just east of Hillsborough was highly effective at managing the growth of <br />hydrilla during the 2015 growing season throughout the treatment zone extending to Roxboro <br />Road in Durham. <br />Please let me know if I can provide any further information on this topic. <br />Attachment: Nov. 30, 2015 letter from Tom Fransen, DWR Water Planning Section Chief <br />cc: Rich Shaw <br />Orange County Department of Environment, Agriculture, Parks & Recreation <br />PO Box 8181, Hillsborough, NC 27278 <br />Phone: (919) 245-2510 Fax: (919) 644-3351 <br />