7305_Duke_Mayo_INSP_20180907

FACILITY COMPLIANCE INSPECTION REPORT
Department of Environmental Quality
Division of Waste Management - Solid Waste Section

UNIT TYPE:
Lined
MSWLF LCID YW Transfer Compost SLAS COUNTY: Person
Closed
MSWLF HHW White
goods Incin T&P FIRM PERMIT NO.: 7305-INDUS-2012
CDLF Tire T&P /
Collection Tire
Monofill Industrial
Landfill X DEMO SDTF FILE TYPE: COMPLIANCE

Date of Site Inspection: September 7, 2018 Date of Last Inspection: September 7, 2017

FACILITY NAME AND ADDRESS:
Duke Energy Progress, Inc. - Mayo Steam Electric Plant
10660 Boston Road
Roxboro, NC 27574

GPS COORDINATES: N: 36.53391 W: -78.92333

FACILITY CONTACT NAME AND PHONE NUMBER:
Cedric Fairbanks, 919-546-2064, [e-mail]
Kimberlee Witt, w. 980-373-2779, c. 336-215-4576, [e-mail]

FACILITY CONTACT ADDRESS:
Same as above.

PARTICIPANTS:
Shawn McKee, NCDEQ, Solid Waste Section
Elizabeth Werner, NCDEQ, Solid Waste Section
Ben Jackson, NCDEQ, Solid Waste Section
Kimberlee Witt, Duke Energy
Evan Andrews, Duke Energy

STATUS OF PERMIT:
Permit To Operate (PTO) issued July 10, 2014
PTO expiration date July 10, 2019

PURPOSE OF SITE VISIT:
Comprehensive Inspection

STATUS OF PAST NOTED VIOLATIONS:
None.

OBSERVED VIOLATIONS
None.

The item(s) listed above were observed by Section staff and require action on behalf of the facility in order to come into or maintain compliance
with the Statutes, Rules, and/or other regulatory requirements applicable to this facility. Be advised that pursuant to N.C.G.S. 130A-22, an
administrative penalty of up to $15,000 per day may be assessed for each violation of the Solid Waste Laws, Regulations, Conditions of a Permit,
or Order under Article 9 of Chapter 130A of the N.C. General Statutes. Further, the facility and/or all responsible parties may also be subject to
enforcement actions including penalties, injunction from operation of a solid waste management facility or a solid waste collection service and any
such further relief as may be necessary to achieve compliance with the North Carolina Solid Waste Management Act and Rules.
FACILITY COMPLIANCE INSPECTION REPORT
Division of Waste Management
Solid Waste Section
Page 2 of 2

ADDITIONAL COMMENTS
The facility is a lined industrial landfill permitted to accept coal combustion by-product (CCB) predominately fly ash,
bottom ash, gypsum, and flue gas desulfurization (FGD) residue from Duke Energy Progress Inc. power generating
facilities. It is also permitted to receive other residues as stated in the facility operations plan section 2.1.2.

1. The facility is permitted to operate between the hours of 7:30am to 6:00pm Monday through Friday and the
hours of 8:00am and 4:00pm on Saturday. Sunday operation may occur during times of heavy plant operations.
Water trucks may be utilized outside of normal operating hours for dust control.

2. The facility permit, site plan, and operations plan were discussed during the inspection. The facility permit to
operate is for the operation of Phase 1 and the facility is currently placing material in Phase 1. An additional
10 Phases (Phase 2 through 11) have been proposed. Phase 1 is 31 acres and has a double liner with leak
detection system.

3. The facility is operated by Charah, Inc. which is responsible for hauling materials to the landfill, daily
operations of the landfill, and conducting other associated activities. Annual Landfill Operations Training
occurred 8/29/17.

4. The following Charah, Inc. personnel are NC Certified Landfill Managers:
 Rob Long, Certified Landfill Manger, No. 11-02-00021, exp. 06/23/20
 Scott Martin, Certified Landfill Manager #13-02M-00072, 7/24/19
 Chris Palmer, Certified Landfill Operator, expires 1/10/2020
 Tanavis Barnes, Certified Landfill Operator, #17-020-00257, expires 11/10/2020

Additional Duke Energy personnel are certified but not listed on the report. Charah personnel are responsible
for landfill operations; certified staff are always present when the landfill is in operation.

5. The facility has a current NC Division of Air Quality, Title V Permit. The permit is #048T47 issued on
11/30/17, expiring 11/30/21.

6. The current erosion and sedimentation control plan for the facility is on file. The facility conducts erosion
and sedimentation control inspections once a week and after ½ inch of rain within 24 hours. Facility
inspection records were verified.

7. Financial assurance documentation for the facility was reviewed during the inspection. The financial
assurance was submitted by Duke Energy Carolina on March 26, 2018. The approved financial assurance
includes $4,070,277 for closure, $877,847 for post-closure care, and $2,000,000 for potential assessment and
corrective action.

8. During 2017, the facility landfilled 62,322.30 tons. Year to date (January 1, 2018 to September 6, 2018) the
facility has landfilled 79,861.35 tons of waste.

9. Dust control plans appear accurate and up-to-date.

10. During the inspection, the semi-annual ground water, surface water and leachate monitoring report for the
sampling event conducted November 8-16, 2017 and April 12, 2018. Five groundwater wells, three surface
water locations and two leachate port locations were monitored. Groundwater well monitoring indicated the
presence of barium, iron, manganese, and zinc. The observed concentrations are reported to be consistent
with historical readings at the applicable well.

FACILITY COMPLIANCE INSPECTION REPORT
Division of Waste Management
Solid Waste Section
Page 3 of 3

11. The leak detection system is outlined in the facility operations plan section 2.3.3. Leachate system records were
reviewed during the inspection. Internal inspections of the system occur weekly. While the flow meter was
non-operational, manual recordings were collected. The flow meter is operational. Review of the records for
the LDS system showed that they system recorded between 0.5 and 5.16 gallons per day.

12. Leachate line inspection and cleaning occurred December 20-21, 2017.

13. At the time of the inspection there was less than 30 inches of measured head on the liner of the landfill.

14. Leachate and contact water generated by the facility is collected as per approved Operations Plan (Sections 2.2
and 2.3) and held in onsite tanks until discharged into the lined FGD settling pond for treatment and then
released in accordance with the National Pollutant Discharge Elimination System (NPDES) permit for the
facility. The facility received NPDES permit #NC0038377 on August 1, 2018. The permit expires on July 31,
2023.

15. Facility access roads are of all-weather construction and are well maintained.

16. Operational cover is being maintained as approved in the facility Operations Plan (Section 2.1.8.1 and
Appendix I, Dust Control Plan). Minimal soil is utilized for cover; landfilled materials are moistened and
allowed to crust over to prevent windblown material. Additionally, Gorilla Snot is used to aid in the process
of crusting when needed. The active area of the landfill has been reduced by utilizing temporary cover in
order to decrease generation of leachate. Cell 1, A and B are currently active.

17. Side slopes and inactive areas have soil cover and established vegetation. Side slopes were well vegetated.
Vegetative growth on side slopes and facility property are mowed regularly every six weeks or as needed. No
on-site or off-site erosion observed. Reseeding is done as needed.

18. The Steam Station was in operation at the time of the site visit and ash was being placed in the active area.
The active fill area was being kept moist to control dust. The plant was expected to go into outage within
days and remain in outage until the end of November depending on electricity demand.

Active area of the landfill. The rain cover is visible in the distance behind the chimney drain.

19. No windblown dust from landfill operations was noted during the inspection.

FACILITY COMPLIANCE INSPECTION REPORT
Division of Waste Management
Solid Waste Section
Page 4 of 4

20. Edge of waste markers have been installed and are being maintained

21. The facility is secured by a locked gate. Personnel are on site during operating hours. The facility has all
required information on signs.

22. Leachate line repairs were almost complete at the time of the inspection. The facility was running 2 trucks to
haul leachate in the interim to the FGD pond. The facility has begun using interim soil cover and rain cover
to limit the amount of storm water coming into contact with the waste thus reducing leachate generation when
feasible.

Please contact me if you have any questions or concerns regarding this inspection report.

Phone: [phone]

Environmental Senior Specialist
Regional Representative

Sent on:
September 24, 2018
Email:
X
Hand delivery US Mail Certified No. [ _]

Copies: Ed Mussler, Section Chief, Solid Waste Section
Jason Watkins, Field Operations Branch Head, Solid Waste Section
Larry Frost, Engineering Project Manager, Solid Waste Section
Elizabeth Werner, Permitting Hydrogeologist, Solid Waste Section
Ben Jackson, Permitting Engineer, Solid Waste Section