1119_DukeAsheville_2023-2024 SWInspQuestionnaire_FID1891107_20240516

NCDEQ Division of Waste Management Solid Waste Section
2024 Landfill Pre -Inspection Questionnaire
Location: Duke Energy Progress — Asheville Steam Electric Plant
46 Duke Energy Lane, Arden, North Carolina 28704
Solid Waste Facility: 1119-INDUS-2020 CCR Landfill
Date: May 16, 2024
Facility Contacts:
CCP System Owner: Joseph Wilson (334)-787-0625 or [e-mail]
CCP Implementation/Project Manager: Seth Glass (828)-650-0683 or [e-mail]
EHS Waste & Groundwater: Ashley Healy (717)-982-0986 or Ashley. [e-mail]
EHS Environmental Field Support/Coordinator: Teresa Williams (828)-650-0610 or
[e-mail]
1. NCDEQ Solid Waste Section Comprehensive Inspection
Provide
Response
Date of previous inspection and list any
Date of previous inspection: September 22, 2023
outstanding issues from past
Comprehensive Inspection
Outstanding issues:
Side Slopes — completed with synthetic turf. Wrinkles visible
Confirm past Solid Waste Section
along side slopes and at toe of slopes.
inspection reports are on site and provide
MSE Berm — vegetation was sparse. Basket geonet visible to
location (SharePoint, contractor trailer,
photodegradation. Vegetation needs to be addressed.
etc.)
Location: Electronic copy on Duke Energy server
(confirmed by A. Healy).
2. Landfill Operating Hours
Provide I Response
Landfill days and hours of operation I N/A, Landfill closure was completed on April 14, 2023
3. Solid Waste Documents
Permit to Construct (PTC)/ Permit to Operate (PTO)
Permit Issue and expiration date
1119-INDUS-2020
Submitted Closure Certification (Rev 1) for Closure Permit on
Confirm most current version is onsite or
October 20, 2023
accessible to onsite personnel; provide
Closure Permit Date: Pending
location
Location: Electronic copy on Duke Energy server
(confirmed by A. Healy).
Operations Plan
Issue date, revision, and approval date
Closure and Post -Closure Plan
Issue Date: February 12, 2024
Confirm most current version is onsite or
Revision: February 9, 2024, Rev. 3
accessible to onsite personnel; provide
Approval date: Pending
location
Location: Electronic copy on Duke Energy server
(confirmed by A. Healy).
4. Training and NC Certifications
Asheville Steam Electric Plant
CCR Landfill: 1119-INDUS-2020 Page 1 of 5

NCDEQ Division of Waste Management Solid Waste Section
2024 Landfill Pre -Inspection Questionnaire
Provide
Response
Landfill Contract Operator Company
N/A
Annual Landfill Operator Training Date
N/A
(Duke Internal)
Contract Operator employee NC Certified
Joe Wilson
Landfill Managers and Landfill Operators:
Certified Landfill Manager
Name
Certificate number: 22-02M-00706
Certificate number, and expiration
Expiration date: 10-05-2028
date
5. Other Permits Active for Landfill Operation
Permit
Issuing Agency
Permit Number
Issue Date
Exp Date
Air Quality
NCDEQ Division of Air
Title V (11-628-22B)
January 12,
January 31,
Quality
2023
2027
Wastewater NPDES
NCDEQ Division of
NC0000396
March 1, 2022
November 30,
Water Quality
(latest
2023, remains
modification)
in force until
new permit is
issued
(renewal
submitted
May 2023)
Buncombe County
Buncombe County
STW2017-00059
November 16,
No expiration
Landfill Stormwater
2017; revised
for landfill
December 20,
2019
Stormwater NPDES
NCDEQ Division of
NCS000575
June 14, 2023;
June 30, 2028
Water Quality
reissuance
removed
stormwater
outfalls at
landfill
Erosion and Sediment
NCDEQ Division of
BUNCO-2018-001 (CCR
February 26,
No expiration
Control
Energy, Mining, and
LF)
2020
Land Resources
MSD Landfill Leachate
Buncombe County
G-038-21
January 1,
December 31,
Pretreatment Permit
Metropolitan
2021
2025
Sewerage District
Asheville Steam Electric Plant
CCR Landfill: 1119-INDUS-2020 Page 2 of 5

NCDEQ Division of Waste Management Solid Waste Section
2024 Landfill Pre -Inspection Questionnaire
6. Erosion and Sediment Control
Confirm (from previous to upcoming inspection)
Response
Records are maintained on site (provide
Location: Electronic copies on Duke Energy server
location)
(confirmed by A. Healy).
Required inspections are being made (once a
Yes
week and after one inch of rainfall within 24-
(confirmed by: J. Wilson)
hours)
Maintenance is being performed as needed
Yes
(confirmed by: J. Wilson)
7. Financial Assurance
Provide
Response
Financial Assurance submittal date
March 27, 2024
Approved cost estimates
Closure Cost Estimate: $0
Post -Closure Cost Estimate: $1,755,156
Current Correct Action Cost Estimate: N/A
Potential Assessment and Corrective Action Cost Estimate:
$2,000,000
8. Annual Reporting and Waste Tracking
Provide
Response
Annual Report submittal date
N/A
Provide disposal tonnage for the annual
reporting period July 1—June 30
N/A
Provide disposal tons by month since previous
inspection
N/A
9. Truck Scale Calibration
Provide
Response
Scale inspection/calibration date
N/A
Company that performed the
inspection/calibration
Issues found and remedy if applicable
10. Environmental Compliance Monitoring
Sampling and Reporting
Monitoring Plan type, date, and revision
WQMP, September 2023, Rev. 3
Semiannual sampling event dates that occurred
Sampling Dates: September 25-26, 2023 and March 18-19,
since last inspection
2024
Number of groundwater monitoring wells,
Monitoring Wells: 9
surface water locations, and leachate sampling
Surface Water/Seep: 4
location(s)
Leachate: 1
Asheville Steam Electric Plant
CCR Landfill: 1119-INDUS-2020 Page 3 of 5

NCDEQ Division of Waste Management Solid Waste Section
2024 Landfill Pre -Inspection Questionnaire
11. Leachate Collection System
Provide
Response
Date of most recent camera inspection of the
Date: August 21, 2023
leachate lines
Company that performed the work
Company: Carlson Environmental Consultants
Issues found and remedy if applicable
Issues: No major issues identified.
Date of most recent leachate line cleaning
Date: August 21, 2023
Company that performed the work
Company: Carlson Environmental Consultants
Issues found and remedy if applicable
Issues: No major issues identified.
Leachate and contact water routing and final
Leachate is collected and routed as per approved
disposal or comingling with other Plant
Operations Plan (Sections 2.2 and 2.3).
wastewater
Leachate pumped from the landfill is conveyed to the
leachate tank for short term storage. Leachate from the
tank is discharged, via a piping network, to the Buncombe
County Metropolitan Sewerage District (MSD) where it
comingles with other wastewater for treatment.
12. Leachate Detection System
Provide
Response
Highest Leakage Rate (gpad)
December 2023 and January 2024: 3.6 gpad
List by location (*or attach a PDF of data to the
end of the questionnaire)
See attached Leachate Collection System and Leak Detection
System Tracking Tables
13. Vacuum Truck Waste
Confirm (from previous to upcoming inspection)
Response
Vacuum Truck Waste Log is being maintained on-
site for all applicable landfills
N/A
14. Off -hour Waste Storage Log
Confirm (from previous to upcoming inspection)
ponse
Off -hour Waste Storage Log is being maintained
on -site for all applicable landfills
tN/A
15. Ash Compaction
Confirm (from previous to upcoming inspection)
Response
Ash compaction data is being maintained on -site
for all applicable landfills
N/A
16. Ash Basin(s)
Provide
Response
Excavation Contractor
N/A
Ash basin excavation status
Excavated
Asheville Steam Electric Plant
CCR Landfill: 1119-INDUS-2020 Page 4 of 5

NCDEQ Division of Waste Management Solid Waste Section
2024 Landfill Pre -Inspection Questionnaire
Excavated basin ash disposal location or reuse N/A
17. Public Complaints
Provide
Response
Complaints recorded since previous inspection:
No complaints received
• date received
• source (if known)
• description of the complaint
Once completed, please email the questionnaire to DEQ facility assigned permitting engineer and hydrogeologist.
Asheville Steam Electric Plant
CCR Landfill: 1119-INDUS-2020 Page 5 of 5

YEAR
2023
Asheville
Asheville Landfill
Permit: 1119
Leachate Collection System and Leak Detection System Tracking
UNIT INFORMATION
UNIT LDS COMPLIANCE THRESHOLDS
Name Asheville Landfill
ISize (ac) 12.5
IRLR (GPAD) 336
ALR (GPAD) 421
GENERAL INFORMATION
LCS
LDS
COMMENTS
(Explanation required when the monthly LCS or LDS flow rate is an anomaly)
Month
Duration
(day)
Total
Monthly
Rainfall
(inch)
Monthly
Gallons
pumped
Leachate
Generation
Rate
(GPAD)
Monthly
Gallons
Pumped
Average LDS
Flow Rate
(GPAD)
Exceeds IRLR
(YES/NO)
Exceeds ALR
(YES/NO)
January
31
4.44
256,771
663
723
1.9
NO
NO
February
28
2.93
212,025
606
1,266
3.6
NO
NO
March
31
2.33
215,805
557
700
1.8
NO
NO
April
30
5.07
196,938
525
655
1.7
NO
NO
May
31
3.44
185,385
478
0
0.0
NO
NO
June
30
2.12
180,073
480
681
1.8
NO
NO
July
31
3.04
157,831
407
643
1.7
NO
NO
August
31
4.01
165,736
428
358
0.9
NO
NO
September
30
1.95
127,731
341
610
1.6
NO
NO
October
31
1.15
131,190
339
626
1.6
NO
NO
November
30
1.13
120,854
322
602
1.6
NO
NO
December
31
6.11
119,640
309
1,392
3.6
NO
NO
Notes:
1. LCS =
Leachate Collection System
2. LDS -
Leak Detection System
3. GPM
= gallons per minute
4. GPAD = gallons per acre per day
5. IRLR
= Initial Response Leakage Rate
6. ALR =
Action Leakage Rate

YEAR
2024
Asheville
Asheville Landfill
Permit: 1119
Leachate Collection System and Leak Detection System Tracking
UNIT INFORMATION
UNIT LDS COMPLIANCE THRESHOLDS
Name Asheville Landfill
ISize (ac) 12.5
IRLR (GPAD) 336
ALR (GPAD) 421
GENERAL INFORMATION
LCS
LDS
COMMENTS
(Explanation required when the monthly LCS or LDS flow rate is an anomaly)
Month
Duration
(day)
Total
Monthly
Rainfall
(inch)
Monthly
Gallons
pumped
Leachate
Generation
Rate
(GPAD)
Monthly
Gallons
Pumped
Average LDS
Flow Rate
(GPAD)
Exceeds IRLR
(YES/NO)
Exceeds ALR
(YES/NO)
January
31
7.67
114,590
296
1,392
3.6
NO
NO
February
29
1.36
104,124
287
714
2.0
NO
NO
March
31
5.69
104,842
271
707
1.8
NO
NO
April
30
2.64
95,873
256
56
0.1
NO
NO
May
31
0
0
0.0
NO
NO
June
30
0
0
0.0
NO
NO
July
31
0
0
0.0
NO
NO
August
31
0
0
0.0
NO
NO
September
30
0
0
0.0
NO
NO
October
31
0
0
0.0
NO
NO
November
30
0
0
0.0
NO
NO
December
31
0
0
0.0
NO
NO
Notes:
1. LCS =
Leachate Collection System
2. LDS -
Leak Detection System
3. GPM
= gallons per minute
4. GPAD = gallons per acre per day
5. IRLR
= Initial Response Leakage Rate
6. ALR =
Action Leakage Rate