0403_AnsonLF_EmailModNeeded_20241213

Wilson, Donna J
From: Wilson, Donna J
Sent: Friday, December 13, 2024 2:22 PM
To: Queen, Jonathan; Brady Stewart; Tyler Fitzgerald
Cc: Stanley, Sherri; Bradford, Teresa; Nguyen, John V
Subject: Anson Landfill - Mods needed to include info for Phase 4 Cell 2Hell
Follow Up Flag: Follow up
Flag Status: Completed
Hello Tyler and Brady,
As were discussing last Friday, there is information needed to the approved permit documents concerning Phase
4, Cell 2 east and west. Some of the details from the original approval were not included in the comprehensive
landfill permit document set, that was approved in May 2024. Also, I have a question about the two smaller cells
adjacent to the current construction.
The goal is to have one set of permit application documents, that includes everything, instead of having separate
addendums. The modifications can be submittals of the parts of the original that have changed, so that those
parts are replaced in the bigger document set.
Questions and comments concerning the Phase 4 Cell 2 east/west cell, Phase 3 Cell 3C, and Phase 3 Cell 2B, to
add to the approved permit application document:
1. For Phase 3 Cell 2B and Phase 4 Cell 3C, clarify that they will be built to the previously approved cell base
elevations, and leachate collection, or submit a modification request for any changes.
2. Currently the Phase 4 cell 2 East cell is open and
operating. Leachate in the east (upgradient) cell
is sloped and diverted to the middle of the cell,
and pumped by flexible hosing to a forcemain
leachate pipe by Phase 4 Cell 1. How long will
this temporary leachate collection
continue? What is the leachate head on the
Liner in this area? Clarify how leachate pumping
is monitored.
3. What is the planned sequence of construction
for the Phase 4 cell 2 west cell? The west cell
construction will include the leachate diversion
trench that will eventually collect the leachate
from the upper east cell, and direct it to
temporary sumps on the sides of the cell. Will
the west cell be built at the same time as Phase
4 cell 5? Then the temporary sump on the north
side of the west cell would not be needed, is this
right? But the temporary sump would be
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needed on the southwest side of the west cell. You can include/describe different options of how the
construction sequence will be (If this, then this).
4. If the temporary sump on the southwest side is built, and Phase 5 cell 3 is later constructed, how will the
cell be built to incorporate an active leachate collection input? How will the temporary leachate sump be
modified to join the new cell under construction?
Is the temporary sump in Phase 4 cell 1 the same design as the temporary sump for the downgradient
center sump for the west cell? How will this sump area be reconstructed when the rest of the
downgradient cell, Phase 5 Cell 2 is constructed, and with active leachate collection for the west cell?
6. Drawings:
a. For the fill progression drawings F200, provide accurate fill progression, with at least 4 or 5 intermediate
contours.
b. For top of liner elevations, C302 — C303, the elevations are hard to read with the elevation line crossing
through the text.
c. In general, provide any details of the east and west cells, from the modification submittal, that were not
included in the current approved drawings (link below).
7. For the west cell, provide text description and detail drawings:
d. the HDPE sump. How is it sealed, leak prevention,
specifications
e. the interim riser and sumps
f. the interceptor leachate trench within Phase 4 Cell 2
(east/west) has extra rock & thicker walled pipe
g. Temporary forcemain, design and purpose
h. Describe - Riser removed, pipe connected, flap removed
and flattened to allow sheet flow, and other transition
when the west cell is built
Confirm that the forcemains are temporary and will be
removed with construction of the adjacent cells.
Describe removal of forcemain and forcemain vault.
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If I have missed any of these details that are already in the application - it's 0, AP'
possible, please let me know. The current approved application is at this link -
httos://edocs.dea.nc.eov/WasteManaLement/DocView.asr)x?id=1846971&dbid=0&reao=WasteManaLement
If you have any questions, please let me know.
Thanks, Donna
Donna J. Wilson
Engineering Project Manager
Solid Waste Section - Division of Waste Management
North Carolina Department of Environmental Quality
Office - Raleigh: [phone]
Email - [e-mail]
Websites - - - Solid Waste Section - - - Composting

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From: Ignaski, Johnna <[e-mail]>
Sent: Tuesday, October 29, 2024 2:08 PM
To: Wilson, Donna J <[e-mail]>
Cc: Queen, Jonathan <[e-mail]>; Brady Stewart<[e-mail]>
Subject: [External] Anson County Landfill Phases 4 and S Expansion Drawing Updates
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Donna,
Since we submitted the name changing modification we wanted to go ahead and begin updating the permit
drawings as you had requested. Attached are the marked -up drawings. We just want to make sure we aren't
missing anything before we update them all. Please let us know if the attached markups are sufficient.
Thankyou,