NC0085839_Renewal Application_20150730

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number NC0085839
Please print or type.
1. Contact Information:
Owner Name Unimin Corporation
Facility Name Unimin Corporation-Red Hill Facility
Mailing Address P. O. Box 588
City Spruce Pine RECEIVEDmFNR/DWR
State / Zip Code NC / 28777 JUL 30 2015
Telephone Number [phone]
Water Quality
Fax Number [phone] Permitting Section
e-mail Address n/a
2. Location of facility producing discharge:
Check here if same as above 0
Street Address or State Road 2241 NC Hwy. 197
City Bakersville
State / Zip Code NC / 28705
County Mitchell
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name Unimin Corporation- Red Hill Facility
Mailing Address P. O. Box 588
City Spruce Pine
State / Zip Code NC / 28777
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ❑ State 0 Private ® Public 0
Page 1 of 5 C-MI 10108

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
10. Amount of principal product produced or raw material consumed
(List specific amounts consumed and/or units of production over the last three years)
Product Produced or Raw Material Product Produced or Raw Material
Consumed Consumed
(AVERAGE) (PEAK)
per Day
per Month
per Year *Confidential production data will be submitted separately.
11. Frequency of discharge: Continuous ® Intermittent ❑
If intermittent:
Days per week discharge occurs: 7 Duration: 24 hrs/day
12. Types of wastewater discharged to surface waters only
Flow
Discharge (GALLONS PER DAY)
Sanitary- monthly average 0
Utility water, etc. - monthly average 0
Process water - monthly average 805,500
Stormwater-monthly average 0
Other-monthly average
Explain: -366,500 (provide raw water reservoir overflow)
Monthly Average -1,172,000
total discharge (all types)
13. Number of separate discharge points: 2 Outfall Identification number(s) 001&002
14. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
North Toe River
Page 3 of 5 C-MI 10/08

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
Effluent Data [for new or proposed discharges]
Provide data for the parameters listed. Temperature and pH shall be grab samples,for all other parameters 24-hour
composite sampling shall be used.If more than one analysis is reported, report daily maximum and monthly average.
If only one analysis is reported, report as daily maximum.
NOTE:Permittees requesting renewal should complete the table ONLY for the parameters
currently monitored. Summarize the past 3 years of effluent data.
Parameter Daily Monthly Units of
Maximum Average Measurement
Biochemical Oxygen Demand (BODS) N/A
Chemical Oxygen Demand (COD) N/A
Total Organic Carbon N/A
Total Suspended Solids 52 26 lb/day
Ammonia as N N/A
Temperature (Summer) N/A
Temperature (Winter) N/A
pH 9.4
Fecal Coliform (If sanitary waste is N/A
present)
Total Residual Chlorine (if chlorine is N/A
used)
16. List all permits, construction approvals and/or applications (check all that apply and provide permit
numbers or check none if not applicable):
Type Permit Number Type Permit Number
Hazardous Waste (RCRA) NESHAPS (CAA)
UIC (SDWA) Ocean Dumping (MPRSA)
NPDES NC0085839 Dredge or fill (Section 404 or CWA)
PSD (CAA) Other NC Air Permit 08358R15
Non-attainment program (CAA)
17. List any chemicals that may be discharged (Please list and explain source and potential
amounts.)
See attached CONFIDENTIAL operating status.
Page 4 of 5 C-MI 10/08

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
18. Is this facility located on Indian country? (check one)
Yes ❑ No
19. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
Andrew G. Bradley Sr. VP - Operations
Printed name of Person Signing Title
7/I 6)
I6)
Signature of Applicant Date
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan, or other document files or
required to be maintained under Article 21 or regulations of the Environmental Management Commission
implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or
monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable
by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than$25,000 or imprisonment not more than 5 years, or both,
for a similar offense.)
Page5of5 C-MI 10/08

CONF D �4
Unimin Corporation —Red Hill Facility
Present Operating Status: Unimin Corporation—Red Hill Facility is engaged in the extraction
and mineral processing to produce high purity quartz. The wastewater treatment plant consists of
mix-reactor tanks, lime and polymer feed systems,thickeners, drum filters,pH adjustment, settling
ponds and flow measurement. The plant is currently limiting flow to 1389 gpm average.
The facility currently may add lime(Ca(OH)2), sulfuric acid(H2SO4), sodium bicarbonate
(Na2CO3)and Calcium Chloride(CaC12)as needed for pH control. The facility may add alum
(Al2(SO4)3), aluminum chlorohydrate(Al2C1(OH)5), anionic polymer and cationic polymer as
needed for flocculation. The facility may add alum,aluminum chlorohydrate and polymer as
needed for flocculation of the intake water. Small amounts of chlorine may also be added as
needed for disinfection of the intake water. Other chemicals used in the process at the main plant
include HF,HC1, caustic, and sodium thiosulfate. Oil and grease are possible from small amounts
of leaks and drips from mobile equipment. Trace amounts of aluminum are used periodically in
the Research& Development facility.
Tailings Management: Tailings obtained from the wastewater treatment plant are not defined as
a solid waste and are not regulated by the Solid Waste Division. Wastes of this nature are returned
to the ore processing plants and disposed of in designated waste disposal areas covered under the
Mining Permits.
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UNIMIN Red HID Facility - NC0085839 Facility
Locationidoguir
JS GS Quad Name: C9 SE,Bakersville Lat.:36°00'50"
Receiving Stream: North Toe River Long.:82°16'05"
Stream Class: C Trout HUC#06010108 Mitchell County
3u bbasin: French Broad -04-03-06 North

NCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory Donald R.van der Vaart
Governor Secretary
August 5,2015
Andrew G. Bradley
Unimin Corporation
Red Hill Facility
PO Box 588
Spruce Pine,NC 28777
Subject: Acknowledgement of Permit Renewal
Permit NC0085839
Mitchell County
Dear Permittee:
The NPDES Unit received your permit renewal application on July 30, 2015. A member of the
NPDES Unit will review your application. They will contact you if additional information is required to
complete your permit renewal. You should expect to receive a draft permit approximately 30-45 days
before your existing permit expires.
If you have any additional questions concerning renewal of the subject permit, please contact Tom
Belnick at(919)807-6389.
Sincerely,
W re v'11Az&forou
Wren Thedford
Wastewater Branch
cc: Central Files
Asheville Regional Office
NPDES Unit
1617 Mail Service Center,Raleigh,North Carolina 27699-1617
Location:512 N.Salisbury St.Raleigh,North Carolina 27604
Phone:[phone] Fax:[phone]/Customer Service:1-877-623-6748
Internet:www.ncwater.orq
An Equal OpportunityWtfirmative Action Employer