DEQ-CFW_00059677

Chemours-
The Chemours Company 910-483-4681 o
Fluoroproducts chemours.com
22828 NC Hwy 87 W
Fayetteville, NC 28306-7332
L
CERTIFIED MAIL ARTICLE NUMBER 7002 0860 0006 9104 8030
RETURN RECEIPT REQUESTED
September 28, 2016
Mr. Nathaniel Thornburg, Unit Supervisor
NCDEQ — Division of. Water Resources
Non -Discharge Permitting Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
SUBJECT: Land Application of Class A Water Treatment Plant Residuals Permit Renewal
Permit Number WQ0035431
Chemours Company — Fayetteville Works
Bladen County, North Carolina
Dear Mr. Thornburg:
The Chemours Company — Fayetteville Works ("Chemours") hereby submits one original and two
copies of a permit application for the renewal of Permit Number WQ0035431 "Land Application
of Class A Water Treatment Plant Residuals Permit (Dedicated)". The renewal application
package includes the Form DCAR 06-16 "Distribution of Class A Residuals" and the Form RSC
11-13 "Residuals Source Certification."
Clarifier and filter backwash solids ("residuals") generated during the river water treatment
process are accumulated in two surface impoundments, specifically the North Sediment Basin and
the South Sediment Basin, which are shown on Vicinity Map No. 2 as "Treatment Units".
When one of the sediment basins is full of residuals, it is taken out of service and the residuals are
allowed to dry. The process of accumulating and then drying the residuals in a specific sediment
basin takes approximately 10 to 15 years.
Under the subject Iand application permit, the dry treatment residuals are then land applied on
undeveloped areas exclusively within the Chemours Company — Fayetteville Works property.
The subject permit was issued on October 28, 2011, and during November -December 2011 the
North Sediment Basin's residuals were removed and land applied to an area within the site's
Borrow Area. Since that time. no land application of residuals has occurred.
DEQ-CFW 00059677

Mr. Nathaniel Thornburg
NCDEQ Division of Water Resources
September 28, 2016
Page 2 of 3
The residuals in the South Sediment Basin have been drying since December 2011, and the site
intends to remove and land apply those residuals in 2018 or 2019.
The Chemours facility is comprised of approximately 2,200 acres of land in Bladen and
Cumberland Counties, with the maj ority of the land residing in Bladen County. The manufacturing
areas of the facility at located on approximately 210 acres that reside wholly within Bladen County.
See Attachment B(1)(a) "Vicinity Map No. 1 — Facility Location".
The land application field where the residuals will be applied is an undeveloped area within the
facility's fenced area and is shown on Attachment B(1)(b) "Vicinity Map No. 2 — Field Location".
The total usable, i.e. unpaved; area of the application field is approximately 19 acres.
The following is a list of all items and attachments included in the application package:
• Distribution of Class A Residuals (FORM DCAR 06-16)
e Attachment D Program Information
• Attachment H Operation and Maintenance Plan
• Residuals Source Certification (FORM RSC I 1-13 )
• Residuals Source Facility Summary
• Vicinity Maps, consisting of the following:
1. Attachment B(1)(a): The map titled "Vicinity Map No. 1 — Facility Location" shows
the approximate location of the facility and the approximate property boundary lines
of the facility.
2. Attachment B(1)(b): The map titled "Vicinity Map No. 2 — Field Location" shows the
approximate location of the two sediment basins; the approximate boundary lines and
acreage of the land application field, and the approximate minimum setback
delineation.
3. Attachment B(l)(c): A USGS Topographic Map (Duart Quadrangle) shows the
approximate location of the facility, the approximate property boundary lines, and the
topographical contours of the facility. As shown by this map, the developed area of
the facility is virtually flat with an elevation between 145 and 150 feet MSL.
4. Attachment B(l)(d): The map titled "Vicinity Map No. 3 — Soils Map" shows the
various soil units at the facility and the approximate boundary lines of the land
application field.
DEQ-CFW 00059678

Mr. Nathaniel Thornburg Page 3 of')
NCDEQ Division of Water Resources
September 28, 2016
5. Attachment B(1)(e): The map titled "Vicinity Map No. 4 — Application Area &
Setback" Map shows the approximate location of the two sediment basins, the
approximate boundary lines and acreage of the land application field, and the
approximate minimum setback delineation.
6. Attachment B(l)(f): The map titled "Vicinity Map No. 5 — Critical Watershed Map"
shows the water supply watershed information for the facility`s location. The
proposed fields are not located within a critical watershed area, but rather are located
within a protected watershed area.
7. Attachment 13(1)(g): The map titled "Vicinity Map No. 6 — Monitoring Well
Locations" shows the approximate locations of the numerous monitoring wells at the
facility.
• Attachment B(2)(a) Process Flow Narrative
Attachment B(2)(b) Process Flow Diagram
! Attachment B(3) Quantitative Justification for Residuals Production Rate
Attachment 1301) Sampling Plan
• Attachment C(l) Laboratory Analytical Report and Operational Data
• Attachment C(2.) Pathogen Reduction and Vector Attraction Reduction Requirements
• Attachment II(5)(c) Plant Available Nitrogen (PAN) Calculation
• Attachment I1(5)(e) Sodium Adsorption Ration (SAR) Calculation
If you have any questions or need more information regarding this renewal application submittal;
please contact me at either 910-678-1 155 or via miell ael.e [e-mail].
Enclosures
DEQ-CFW 00059679