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Home My WebLink AboutNC0038377_Table 1-1 Summary of Revised Well Locations MAYO_20150902TABLE 1-1 SUMMARY OF REVISED WELL LOCATIONS MAYO STEAM ELECTRIC PLANT DUKE ENERGY PROGRESS, LLC, ROXBORO NC Raleigh Regional Office - Mayo Steam Electric Plant Well/ General Location on Relocation, Approximate Distance Justification for Relocation, NCDENR Concurrence/ Boring ID Groundwater Assessment Addition, and Addition, or Deletion Comment Plan or Deletion? Direction of Relocation Saturated conditions and slope of land surface S13-4 East side of power plant area Relocation 200' south-southeast created unsafe conditions (unstable ground for drilling equipment; proximity to fence) S13-6 Southwest side of 1981 landfill Relocation 100' southwest Ease of access and concern about drilling into landfill debris MW-7S East of ash basin and north of Deletion Saprolite of sufficient thickness and saturation to railroad line discretely monitor was not observed MW-7D East of ash basin and north of Relocation 750' northeast Moved at request of NCDENR to be outside of Written concurrence in railroad line compliance boundary conditional approval letter MW-76R East of ash basin and north of Relocation 750' northeast Moved at request of NCDENR to be outside of Written concurrence in railroad line compliance boundary conditional approval letter East of ash basin and west of Saprolite of sufficient thickness and saturation to MW-9S railroad line between ash basin and Deletion discretely monitor was not observed Mao Lake East of ash basin and west of A transition zone/PWR of sufficient thickness and MW-9D railroad line between ash basin and Deletion saturation to discretely monitor was not observed Mao Lake MW-10S East side of power plant area Deletion Saprolite of sufficient thickness and saturation to discretely monitor was not observed MW-10D East side of power plant area Deletion A transition zone/PWR of sufficient thickness and saturation to discretely monitor was not observed Saturated conditions and slope of land surface MW-10BR East side of power plant area Relocation 200' south-southeast created unsafe conditions (unstable ground for drilling equipment; proximity to fence) MW-11S West side of Highway 501 Deletion Saprolite of sufficient thickness and saturation to discretely monitor was not observed MW-11D West side of Highway 501 Deletion A transition zone/PWR of sufficient thickness and saturation to discretely monitor was not observed Overhead utilities, underground utilities, proximity Verbal concurrence with MW-11BR West side of Highway 501 Relocation 500' north to US Highway ROW, and nearby slope instability relocation created unsafe conditions Verbal concurrence during site South side of property along Plant No water bearing zone was identified within the visit; possiblity of employing MW-12BR entrance road Deletion bedrock core after the 50 foot exploratory depth former production wells (DEP) into bedrock had been exceeded as bedrock background wells discussed MW-13S West side of Highway 501 Deletion Saprolite of sufficient thickness and saturation to discretely monitor was not observed MW-13D West side of Highway 501 Deletion A transition zone/PWR of sufficient thickness and saturation to discretely monitor was not observed MW-13BR West side of Highway 501 Relocation 300' northwest Moved to accommodate forthcoming US Highway Verbal concurrence with 501 expansion relocation MW-14S Northwest portion of property, near Deletion Saprolite of sufficient thickness and saturation to Mayo Lake Road discretely monitor was not observed MW-14D Northwest portion of property, near Deletion A transition zone/PWR of sufficient thickness and Mayo Lake Road saturation to discretely monitor was not observed MW-14BR Northwest portion of property, near Relocation 100' northwest Ease of access for large drill rig Mayo Lake Road MW-15S Peed property near NC/VA line Deletion Saprolite of sufficient thickness and saturation to discretely monitor was not observed MW-15D Peed property near NC/VA line Deletion A transition zone/PWR of sufficient thickness and saturation to discretely monitor was not observed MW-15BR Peed property near NC/VA line Relocation 100' southwest Limit tree cutting and land clearing on private property Safety considerations required that walking on ash Verbal concurrence with ABMW-1 West side of ash basin Relocation 150' southwest basin be limited in this area relocation during site visit discussion ABMW-01 was completed using a hand auger. Safety considerations prevented heavy equipment ABMW-1S West side of ash basin Deletion from working on the ash basin at this location; therefore, drilling/well installation into saprolite was not possible with hand auger Safety considerations precluded using heavy Verbal concurrence with ABMW-2 Central portion of ash basin Relocation 400' south equipment on this part of the ash basin. Drill rigs relocation during site visit were permitted on the ash harvest area discussion ABMW-2S Central portion of ash basin Deletion Saprolite of sufficient thickness and saturation to discretely monitor was not observed ABMW-2D Central portion of ash basin Deletion A transition zone/PWR of sufficient thickness and saturation to discretely monitor was not observed Safety considerations precluded using heavy Verbal concurrence with ABMW-3 South side of ash basin Relocation 400' southwest equipment on this part of the ash basin. Drill rigs relocation during site visit were permitted on the ash harvest area discussion Safety considerations precluded using heavy Verbal concurrence with ABMW-3S South side of ash basin Relocation 400' southwest equipment on this part of the ash basin. Drill rigs relocation during site visit were permitted on the ash harvest area discussion ABMW-4S South side of ash basin Deletion Saprolite of sufficient thickness and saturation to discretely monitor was not observed Prepared by: JAW Checked by: EMB P:\Duke Energy Progress. 1026\105. Mayo Ash Basin GW Assessment Plan\1.11 CSA Reporting\Tables\ReportTables\Table 1-1 Summary of Revised Well Locations MAYO.xlsx Page 1 of 1