NC0000400_More Information (Received)_20240129

7/18/24,5:13 PM Mail-Denard, Derek-Outlook
[External] PFAS Questionnaire
John Silver <[e-mail]>
Mon 1/29/2024 8:11 AM
To:Denard, Derek <[e-mail]>
Cc:Michael Yarborough <[e-mail]>;Styers, Gray <[e-mail]>
8 1 attachments (25 KB)
PFAS Questionaire Final.docx;
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Derek, here is the PFAS questionnaire.
John Silver
Environmental Manager
THEJKIL
QUARTZ
CORP
Phone : [phone]
Mobile : [phone]
E: john.silver(cDthequartzcorp.com
W: www.thequartzcorp.com
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ATTACHMENT 1
FLUORINATED CHEMICALS (e.g., PFAS) QUESTIONNAIRE
1. Do you use any material or products (directly or indirectly) in your operations that contain
fluorinated chemicals? If so, please identify what materials or products contain fluorinated
chemicals. HF Acid
• Please also address if you have any historical conditions and/or information for past practices
at the site related to fluorinated chemicals? The current process involving HF acid was
developed around the middle of the 20th century by companies mining the alaskite ore bodies in
western NC.
2. Will your facility formulate or create products (directly or indirectly)which contain fluorinated
chemicals? If so, please identify the specific fluorinated chemicals that may be formulated or
created. HF leaves trace amounts of fluorides on produced products (Feldspar, Quartz, solid
waste and wastewater).
Will your facility produce solid waste, liquid waste, wastewater effluent, or other waste
containing fluorinated chemicals? Please be as specific as possible to describe what fluorinated
chemicals may result in the facility's wastewater, solid waste, or sludge. Due to HF acid use in
the process, wastewater effluent and solid waste contains fluorides.
3. Are there processes or operations that use equipment, material, or components that contain
PFAS chemicals (e.g., surface coating, clean room applications, solvents, lubricants, fittings,
tubing, processing tools, packaging,facility infrastructure)?Could these activities result in
fluorinated chemicals being discharged as products, or by-products (i.e.,through leaching,
chemical process, heat treatment, pressurization, etc.)? No
4. List CAS numbers of all known or believed present fluorinated compounds from the questions
above. Please provide descriptions, quantities, and whether there are any unknowns related to
the above questions. HF 7664-39-3
5. Are there other facilities or operations in the U.S. or internationally that are identical to or may
use processes similar to the facility in North Carolina? If so, please provide facility identification
information and wastewater characterization including all PFAS compounds? Sibelco North
America-Schoolhouse Plant. NC0000361 Sibelco North America-Quartz Plant. NC0000175 are
very similar, but due to confidentiality and trade secrets,their exact process and rates of usage
are unknown. We know of no other facilities with a process similar to this process.
6. Additionally, have any PFAS analytical results been collected with any analytical test method
similar to the following EPA Test Methods. Are any of the fluorinated compounds listed in one of
the following methods and can you provide us with data resulting from these test
• Methods 533 &537.1 (drinking water)
• SW-846: Method 8327 (water)
154303944.2

• Draft Method 1633 (water, solids,tissue)
• "Total PFAS" Draft Method 1621 (wastewater)
The Quartz Corp tests for Fluorides in water via SM 4500E-C-2011 (Aqueous) Certified
Parameters.
154303944.2