WQ0005555_More Information (Received)_20190619

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Ms. Tessa Monday
Environmental Engineer
Division of Water Resources
North Carolina Department of
Environmental Quality
WQ0005555 Comment Response Letter
Dear Ms. Monday:
AECOM
1600 Perimeter Park
Morrisville, NC 27560
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June 18, 2019
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AECOM has revised the drawings associated with the permit renewal request for Application No. WQ0005555,
originally submitted on March 18, 2019. Below is a summary of your comments and the revisions made to the
drawings to address each comment. Original comments are in italicized text, and responses are in bold text.
A. Site Map (15A NCAC 02T .0105):
1. The unnamed tributary appears to bean intermittent stream, and not a water diversion. The unnamed
tributary was relabeled as an intermittent stream and the setback buffer increased to 100'. This can
be seen on Sheet 01.
2. All habitable residences and places of assembly within 500 feet of all treatment, storage, and disposal sites.
Previously a buffer of 400 feet was shown. This was increased to 500 feet and a darker linetype used.
This can be seen on Sheet 01.
3. Location and identification of each monitoring well (Using names according to Attachment C of the permit).
The names of the monitoring wells was updated in the table shown on Sheet o1 to match what is
listed in Attachment C of the existing permit. The names were also updated on the plan view as well
on Sheet 01.
4. Latitude and longitude coordinates of all monitoring wells (decimal degrees to 6 digits). The latitudes and
longitudes originally shown in degrees, minutes, seconds, were converted to decimal degrees in the
table on Sheet 01.
5. The wetted perimeter of all imgationrnfiltration fields with field names (named according to the approved
permit). The wetted perimeter of all Fields can be found on Sheet 03. Additionally, a summary table
was added to Sheet 03 that shows the field names, the wetted acreage, the wetted area radius, and
the sprinkler heads for the 4 newer fields.
6. The delineation of compliance and review boundaries. The compliance boundary is either 250 feet from the
wetted perimeter or 50 feet within the property boundary, whichever is closest to the irrigation area. The
compliance boundary cannot cross onto property owned by separate entities. The compliance boundary
was updated so that it was either 250 feet from the wetted perimeter or 50 feet inside the property
line, whichever was closer, and did not cross onto an adjacent property owner's site.
B. Major Modification f 15A NCAC 02T .05041:
1. Provide a process flow diagram of the proposed treatment system (including RO system). The process flow
diagram was updated based upon additional information obtained from Weyerhaeuser and a site
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walk-thru. The RO system is shown, however, the RO system was installed strictly to meet the
requirements of the Yadkin Valley Sewer Authority (YVSA) for discharging to their treatment system
and does not discharge to the spray fields. The permit for the RO system is currently in the process
of being obtained under a separate permit application. There is no physical interconnection between
the Reverse Osmosis system and the 420,000 irrigation ponds that discharge to the spray fields. This
can be seen on updated Sheet 04. Additionally PDF drawings directly related to the DAF and
Beltpress have been added to the drawing set as Sheets 13 and 14 respectively.
2. Provide engineering plans and details of the reverse osmosis system. We are providing details of the RO
system for information only as the RO filtrate goes directly to the lift station, a purified water holding
tank that is used for reuse, or back to the clarifier only. This can be seen on the updated PDF shown
on Sheet 04. Drawings for the RO system are included as Sheets 15 through 36.
If you have any further questions or comments, please feel free to email me directly at or
by phone at 919-461-1564
Yours sincerely,
Krista Paredes -Toledo
Water/Wastewater Engineer
AECOM
T 919-461-1456
E: [e-mail]
cc: Dennis Atkinson, Weyerhaeuser
aecom.com
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Permit No. WQ0005555
Wyerhaeuser NR Company
Elkin OSB Manufacturing Facility
❑ Partial ® Final
Wasttic
igation System
AICD
ly
I, Krista KParedes-Toledo. as a duly licensed North Carolina Proesslil ine?'ving
periodically / ❑ fully observed the construction of the permitted facilities, do herd a best o'
my abilities that the facility was constructed in compliance with G.S. 143-215.1, Administra ode Tit
15A Subchapter 02T, this permit, and the Division -approved plans and specifications.
ENGINEERING CERTIFICATION
Documentation of any variation to this permit, and the Division -approved plans and specifications, is in the
attached as -built drawings.
Description of variations: Observation was not done during construction but a site visit was done on
Friday_, June 7 2019 during which the conditions shown in the attached record drawings were compared
to the existing conditions in the field and observed to be accurate. The only variation observed was the
structural catwalks anoear to vary slightly from what is shown on the plans.
Krista K Paredes -Toledo
Professional Engineer's Name
AECOM Technical Services of NC, Inc F-0342
Firm Name I Firm No. I
1 1600 Perimeter Park Drive, Suite 400 1
Address
Morrisville
City
919-461-1564
Telephone
NC
State
27560
Code
[e-mail]
Email
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Seal, Signature, and Date
THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING
DOCUMENTATION, SHALL BE SENT TO THE FOLLOWING ADDRESS:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
NON -DISCHARGE BRANCH
B ; U.S. Postal Service By Courier{S ep cial Deliver.
1617 MAIL SERVICE CENTER 512 N. SALISBURY ST.
RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604