NC0038377_Table 16-2 Recommended Groundwater Monitoring Locations_20150902

TABLE 16-2
RECOMMENDED GROUNDWATER MONITORING LOCATIONS
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Monitoring
Installation ID
Geologic Unit
Monitored
Position Relative to Ash Basin
BG-1
Bedrock
Upgradient/Background (south)
BG-2
Transition Zone
Upgradient/Background (south)
CW-1
Transition Zone
Sidegradient (east)
CW-ID
Bedrock
Sidegradient (east)
CW-2
Transition Zone
Downgradient of ash basin dam/Crutchfield Branch area (north)
CW-2D
Bedrock
Downgradient of ash basin dam/Crutchfield Branch area (north)
CW-3
Transition Zone
Downgradient (north)
CW-4
Bedrock
Downgradient (northwest)
CW-5
Bedrock
Upgradient (west)
CW-6
Bedrock
Downgradient (northeast)
MW-2
unknown
Downgradient (north)
MW-3
unknown
Downgradient of ash basin dam/Crutchfield Branch area
MW-4
unknown
Upgradient (east)
MW-3BR
Bedrock
Downgradient (north)
MW-5BR
Bedrock
Upgradient (west)
MW-6BR
Bedrock
Piezometer/Water level only (northeast)
MW-7D
Transition Zone
Mayo Lake flow regime (northeast)
MW-7BR
Bedrock
Mayo Lake flow regime (northeast)
MW-8S
Saprolite
Piezometer/Water level only (northeast)
MW-8D
Transition Zone
Piezometer/Water level only (northeast)
MW-8BR
Bedrock
Mayo Lake flow regime (northeast)
MW-9BR
Bedrock
Mayo Lake flow regime (northeast)
MW-10BR
Bedrock
Upgradient/Background (southeast)
MW-11BR
Bedrock
Upgradient/Background (southwest)
MW-12S
Saprolite
Upgradient/Background (south)
MW-12D
Transition Zone
Upgradient/Background (south)
MW-13BR
Bedrock
Upgradient (west)
MW-14BR
Bedrock
Upgradient/Background (west)
MW-15BR
Bedrock
Piezometer/Water level only (north)
MW-16S
Alluvium
Downgradient of ash basin dam/Crutchfield Branch area (north)
MW-16D
Transition Zone
Downgradient of ash basin dam/Crutchfield Branch area (north)
MW-16BR
Bedrock
Downgradient of ash basin dam/Crutchfield Branch area (north)
DEP-1
Bedrock
Upgradient of ash basin; Mayo Lake flow regime
DEP-2
Bedrock
Upgradient of ash basin
DEP-3
Bedrock
Upgradient of ash basin
P-1
Ash Basin Dam
Piezometer/Water level only
P-1A
Ash Basin Dam
Piezometer/Water level only
P-2
Ash Basin Dam
Piezometer/Water level only
P-2A
Ash Basin Dam
Piezometer/Water level only
P-3
Ash Basin Dam
Piezometer/Water level only
P-3A
Ash Basin Dam
Piezometer/Water level only
P-4
Ash Basin Dam
Piezometer/Water level only
P-4A
Ash Basin Dam
Piezometer/Water level only
Prepared by: JAW Checked by: EMB
File: P:\Duke Energy Progress. 1 026\1 05. Mayo Ash Basin GW Assessment Plan\1.11 CSA Reporting\Tables\ReportTables\Table 16-2 Recommended Groundwater Monitoring Locations.xlsx
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