NC0000175_Draft Permit_20181017

i, .�
ROY COOPER -I1� sm;
Governor ;� EU r j
MICHAEL S.REGAN ..i". .�
Secretory \ ,,� 40Ra!jtNtaftt --
z.<
LINDA CULPEPPER
Interim Director NORTH CAROLINA
Environmental Quality
October 17,2018
Douglas Myers,Regional General Manager
Sibelco North America
P.O. Box 588
Spruce Pine,NC 28777
Subject: Draft NPDES Permit Renewals
Permits:NC0000175,NC0000361,
NC0084620,NC0085839
Quartz, Schoolhouse, Crystal, and Red Hill
Facilities
Mitchell&Avery Counties
Grade PC2 Facilities
SIC code 1459
Dear Mr.Myers:
Enclosed with this letter are copies of the draft NPDES permit renewals for your facilities. Please review
the drafts carefully to ensure thorough understanding of the requirements and conditions they contain.
There are several changes from existing permits, including the following:
• The NC 2007-2014 Water Quality Standards (WQS)Triennial Review was approved by the NC
Environmental Management Committee(EMC) on November 13, 2014. The US EPA
subsequently approved the WQS revisions on April 6,2016 with some exceptions. The NC
Division of Water Resources NPDES Permitting Unit is required to implement the new dissolved
metal standards in all permits public noticed after April 6, 2016. The new standards for most
metals include acute standards. Further,the freshwater standards for several metals are expressed
as the dissolved forth of the metals, and seven metals have hardness-dependent equations.As a
result,the NPDES Permitting Unit will need site-specific effluent hardness data and instream
hardness data,upstream of the discharge,for each facility monitoring these metals in order to
calculate permit limitations. Effluent hardness and instream hardness sampling,upstream of the
discharge,has been added to each permit at a monitoring frequency of quarterly. See Special
Condition A. (1.)Effluent Limitations and Monitoring Requirements for effluent and instream
sampling requirements.
• Sampling by the EPA in 2015 and stormwater monitoring data from several quartz/feldspar mines
in the region, in conjunction with the new dissolved metals standards noted above, indicates
aluminum, copper, lead, nickel, and zinc are pollutants of concern and quarterly monitoring has
been added to the permits.
• The NPDES Standard Conditions (Parts II, III, and IV) are not included with this draft. They can
be found at the following link if you would like to review them in conjunction with this draft permit.
https://bit.ly/2BZ4xxx
E C�
oxoanmemwEnraawmcaQO IY
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11611 Mail Service Center I Raleigh,North Carolina 27699-1611
919.707.3601

• Since your facilities are not subject to Federal Effluent Limitation Guidlelines,pH limits have been
changed from between 6.0& 10.10 standard units to between 6.0&9.0 standard units in accordance
with the pH WQS in 15A NCAC 02B. [See Special Condition A. (1.)]
• Please review the components lit for each facility on page two, Supplement to Permit Cover Sheet.
• Please review instream monitoring locations in footnote 2 of Special Condition A. (1.) Effluent
Limitations and Monitoring Requirements.
• NC DEMLR will be evaluating stormwater data and may direct your facilities to apply for
individual NPDES wastewater 'coverage in lieu of stormwater general permit coverage under
NCG020000 prior to the expiration of that general permit. If that is the case, please be reminded
that DWR will require a major modification application and associated fee along with an
Engineering Alternatives Analys lis for each facility at least 180 days prior to commencing discharge
of wastewater previously covered under NCG020000. Any additional discharge of fluoride must
be accounted for in a facility's fluoride allocation.
• Federal regulations require electronic submittal of all discharge monitoring reports(DMRs) and
program reports. The requirement to continue reporting discharge monitoring data electronically
using the NC DWR's Electronic Discharge Monitoring Report(eDMR) interne application has
been added to your NPDES permit. [See the final Special Condition in each permit]
Concurrent with this notification the Division is publishing a notice in a newspaper having circulation in
the general Mitchell and Avery County areas, soliciting public comments on these draft permits.Please
provide any written comments you may have to the following: NCDEQ/DWR,NPDES Permitting
Branch, 1617 Mail Service Center,Raleih,NC 27699-1617 no later than 30 days after receipt of this
draft permit.
Following the 30-day public comment period,the Division will review all pertinent comments and take
appropriate action prior to issuing final permits. If you have questions concerning these draft permits,
please call me at(919) 707-3612 or by email at [e-mail].
Sincere
4 a iiii,...)K
David Hill,Environmental Specialist II
NPDES Complex Permitting Unit
Hardcopy: NPDES Files
Ecopy: US EPA Region 4
DWR/Aquatic Toxicology Branch/Susan Meadows
DWR/NC Operator Certif cation Program/Maureen Kinney
DWR/Asheville Regional ffice/Water Quality Regional Operations/Landon Davidson
DEMLR/Stormwater Program/Annette Lucas
Page 2 of 2

Permit NC0000175
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended
Sibelco North America
is hereby authorized to discharge wastewater from a facility located at the
Quartz Facility
7638 South 226 Highway
Spruce Pine
Mitchell County
to receiving waters designated as the North Toe River in the French Broad River Basin in
accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III and IV hereof.
This permit shall become effective Month XX, 2018.
This permit and authorization to discharge shall expire at midnight on February 28, 2022.
Signed this day Month XX, 2018.
DRAFT
Linda Culpepper
Interim Director, Division of Water Resources
By the Authority of the Environmental Management Commission

I
11
I ' Permit NC0000175
I
I
SUPPLEMENT TO PERMIT COVER SHEET '
All previous NPDES Pennits issued to this facility, whether for operation or discharge are
hereby revoked. As of this permit issuance, any previously issued permit bearing this number is
no longer effective. Therefore,the exclusive authority to operate and discharge from this facility
arises under the permit conditions,requirements, terms, and provisions included herein.
Sibelco North America Quartz/Feldspar facility is hereby authorized to:
1. Continue to operate and maintain an existing 3.6 MGD wastewater treatment facility
consisting of the following components:
f
• Dewatering cyclones - ,
• Screw classifier
• Vacuum filters
• Alum/lime pH adjustment and polyme ced systems
5:,• Jadar solids removal �;., i4;.
• Emergency pond er ..,
• Mix/reactor tanks '�
• Two thickeners # �.,
• Multimedia filter • .e.),,, „ ,..„..
-, ',/..-:„ li;
• Filter press
• Flow measuremen `
This facility is loca ed'atathe Quartz Facility; 3638 South 226 Highway, Spruce Pine in
Mitchell Qo thy. •
k `7�; � .,,,,".628
k
2. Discharge from said re Anent works at the location specified on the attached map via Outfall
001 inhe North Toe Rier, clas);r1;,,,0 C Trout water in the French Broad River Basin.
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Permit NC0000175
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 15A NCACO2B .0500 et seq.][Grade II Physical/Chemical Water
Pollution Control System 15A NCAC 08G .0306]
During the period beginning on the effective date of the permit and lasting until expiration,the permittee
is authorized to discharge treated process wastewater from Outfall 001. Such discharges shall be limited
and monitored)by the permittee as specified below:
PARAMETER CHARACTERISTICS, ° . EFFLUENT LIMITS MONITORING REQUIREMENTS
PARAMETER Monthly Weekly Daily Measurement Sample Sample
CODE Average Average Maximum 'Frequency Type Location2
Flow 50050 3.6 MGD , , a, Continuous Recording I or E
Total Fluoride 00951 109.0 lb/day IA 218.0 Ib/d & Weekly Composite E
Total Fluoride 00951 Monitor&,R port(pg/L) '`ftleekly Grab U, D
QD530 1320.0 2640.0
Total Suspended Solids lb/day " lb/day Weekly Composite E
Total Suspended Solids QD530 Monitor&RepOt(mg/L)4 Weekly , ,„ Grab U, D
00545 Monitor&Re o"� a Ul Weeklyb Grab E
Settleable Solids �„�� p �( *,�)��
Turbidity3 00070tt%fiittpr&Report Mr Weekly Grab E, U, D
pH 00400 Befween and,9.0 Standar Units Weekly Grab E, U, D
Chloride4 00940 `Monitor&lP,prt(mg/L) '' Quarterly Composite E _
Chronic Toxicity5 , TG,38a Cerioaaphnia dubaP%F at;11% ' -, , Quarterly Composite E
Total Aluminum 4W0�19 Mon`i or,&Rept` ({ug/[?) v?Quarterly Composite E
Total Copper ? 01042 Via , Monitepprt�'(pg/L)� �� Quarterly Composite E
Total Lead P'' ., 01051 9' o�8E3` Monitor i port(pg/L) r Quarterly Composite E
Total Nickel ''9V01067 , ,,,eMonitor&-Deport(pg/L) Quarterly Composite E
Total Zinc ,� ,. 01;092,rMorritor&Report(rag/L) Quarterly Composite E
Hardnes Tof asps . 009ThJ) Mo Tito &Rep& (mg/L) Quarterly Composite E
[CaCO3<Orx(.Ca+ Mg)]
Hardness`To"al as ' 00900 ' onitor&Report(mg/L)
[CaCO3 or(Cay+Mg)] Quarterly Grab U
Footnotes: W f `�,�''
1. The permitte d�'all submit Di urge Monitoring Reports electronically using NC DWR's eDMR
application syste See SpeciakCondition A. (7.).
2. Sample locations fl`xi uent :fluent, U-Upstream= above the facility intake, D-Downstream = at
Penland Bridge.Instr 'sa shall be grab samples and shall be conducted weekly.
3. The discharge from this l'ity shall not cause turbidity in the receiving stream to exceed 10 NTU. If
the instream turbidity exceeds 10 NTU due to natural background conditions,the discharge cannot
cause turbidity to increase in the receiving stream. Therefore, if the effluent measurement exceeds 10
NTU,the Permittee shall sample upstream and downstream turbidity in the receiving waterbody,
within 24 hours,to demonstrate the existing turbidity level in the receiving waterbody was not
increased. All data shall be reported on the DMRs. (See 15A NCAC 2B .0211 (21)). See Special
Condition A. (3.).
4. Chloride shall be monitored quarterly in conjunction with toxicity testing.
Footnotes continued next page
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Permit NC0000175
Footnotes continued from A. (1.)Effluent Limitations and Monitoring Requirements
5. Whole effluent toxicity will be evaluated using Chronic Toxicity (Ceriodaphnia dubia) P/F test at
11% during the months of January,April,July and October. See section A. (2.).
6. Effluent hardness should be performed in conjunction with testing for hardness dependent metals
(cadmium, copper, lead,nickel, silver,zinc).
There shall be no discharge of floating)solids or visible foam in other than trace amounts.
A. (2) CHRONIC TOXICITY PEIRMIT LIMIT (QURLY)
[15A NCAC 02B.0200 et seq.] 441'.f
The effluent discharge shall at no time exhibit obs able inibi ii hof reproduction or
significant mortality to Ceriodaphnia dubia at ane >itent concent on of 11%.
•
The pelluit holder shall perform at a rninimum$uarterly monitoring using telt procedures
outlined in the "North Carolina Ceriodaphnia Chro 'tr.Efflue�t�Bioassay Pro lure, Revised
December 2010, or subsequent versioe£,i s or"North Carol ase II Chronic Vole Effluent
Toxicity Test Procedure" (Revised- ®eceber 2010) or Carol*°Sequent versions. The tests will be
performed during the months of Jan ary ri July ai IItctober. These months signify the
first month of each three-month toxici ,ting quarter assignedo the facility. Effluent sampling
for this testing must be obtained during reprsentati e =uent disarge and shall be performed
at the NPDES permitte final�f lit ent�disch ge below al,#eAtmen rocesses.
If the test procedure pe formed as%tbe first test of any single quarter results in a failure or
ChV below the permit 1 m t_tlke`itti ti le-conce itration testing shall be performed at a
minimums n`eat of t e twolaiow neMi nths sfdescribed in "North Carolina Phase II
Chronic, hole Effluept oxic ty est Procedure (Revised-December 2010) or subsequent
versions ��°
All toxicity tes g results requited as pa :of this permit condition will be entered on the Effluent
Discharge Monion Form (MAS) for the months in which tests were performed, using the
parameter code TGP3]3 for the�p ss/fail results and THP3B for the Chronic Value. Additionally,
DWR Foam AT-3 (original) iso� be sent to the following address:
Attention: North Carolina Division of Water Resources
'Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh,NC 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later
than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements
and all concentration/response data, anci be certified by laboratory supervisor and ORC or
• 4of7

Permit NC0000175
approved designate signature. Total residual chlorine of the effluent toxicity sample must be
measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity
monitoring is required,the permittee will complete the information located at the top of the
aquatic toxicity(AT) test form indicating the facility name,permit number, pipe number, county,
and the month/year of the report with the notation of"No Flow"in the comment area of the
form. The report shall be submitted to the Water Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required,
monitoring will be required during the following month. Assessment of toxicity compliance is
based on the toxicity testing quarter, which is the three month time interval that begins on the
first day of the month in which toxicity testing is required by this permit and continues until the
final day of the third month.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Water Resources indicate potential impacts to the receiving stream, this permit may
be re-opened and modified to include alternate Monitoring r quirements or limits.
i
NOTE: Failure to achieve test conditions'as specified in the,cited document, such as minimum
control organism survival, minimum'control organism reproduction, and appropriate
environmental controls, shall constitute.an,mvalid test and will require immediate follow-up
testing to be completed no later than the last .,day oftlie month following the month of the initial
monitoring. / ,
A. (3.) TURBIDITY REOPENER [G.S. 143-2`15.1(b)]
This permit-shall be modified, or revoked and reissued to incorporate new turbidity effluent
limitations inthe event that violations of the turbidity-standard of the North Carolina Water
QualityStaandard occur as oa result of this discharge:'
•
A. (4.) SOLIDS'DISPOSAL [G.S. 143-215.1(b)]
Solids removed or resulting from the wastewater treatment process shall be contained and
disposed of in such a mariner4s tolprevent any contamination of the surface waters of the State.
A. (5.) FLUORIDE REOPENER [G.S. 143-215.1(b)]
This permit shall be modified, or revoked and reissued to incorporate new fluoride effluent
limitations in the event that acute or chronic bioassay testing or other studies results in a change
in the North Carolina Water Quality Standard for fluoride.
A. (6.) PERMIT MODIFICATIONS [G.S. 143-215.1(b)]
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Permit NC0000175
This permit shall be modified, or revoked and reissued to incorporate new limitations in the
event that production changes are requested or should any new fluoride using discharge request
to locate on the North Toe River.
A. (7.) ELECTRONIC REPORTING OF MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and
program reports. The final NPDES Electronic Reporting Rule was adopted and became effective
on December 21, 2015.
NOTE: This special condition supplements or supersedes the"following sections within Part II of
this permit(Standard Conditions for NPDES Permits): r` ° ,
• Section B. (11.) Signatory Requirements ( , , `
• Section D. (2.) Reporting v
:;NGo
• Section D. (6.) Records Re ention
• Section E. (5.) Monitoring'Reports y `-
"\,-,\',;., /:;;),‘ , ,.
1. Reporting Requirements [Supersedes Section D.12:) and Section E. (5.)"(a)1
The permittee shall report discharge`monitoring data electronically using the NC DWR's
Electronic Discharge Monitoring Report(eDMR)internet:application.
Monitoring results[obtained,during theyprevious month(s) "shall be summarized for each
month and submitted electronically using..,eI5MR. '`The^eDMR system allows permitted
facilities to enter monitoring data and submit DMRs elect`ronically using the internet. Until
such time that the state's eDMR a p plication`is compliant with EPA's Cross-Media Electronic
Reporting':Regulation CROMERR, permittees,will be required to submit all discharge
( , i' I �- q g
monitor ng data to,the state,electronically using eDMR and will be required to complete the
eDMR submission by printing,;signing, and-submitting one signed original and a copy of the
computerprinted eDMR to.the following address:
NC DEQ`/Division of Water Resources'/Water Quality Permitting Section
ATTENTION,: `Central Files=
1617 Mail Service Center )_ „1
Raleigh,North Carolina 27699-16 7
If a permittee is unable`td use the e MR system due to a demonstrated hardship or due to the
facility being physically located in an area where less than 10 percent of the households have
broadband access, then a temporary waiver from the NPDES electronic reporting
requirements may be granted and discharge monitoring data may be submitted on paper
DMR forms (MR 1, 1.1, 2, 3) or alternative forms approved by the Director. Duplicate
signed copies shall be submitted :o the mailing address above. See "How to Request a
Waiver from Electronic Reporting" section below.
6 of 7

Permit NC0000175
Regardless of the submission method, the first DMR is due on the last day of the month
following the issuance of the permit or in the case of a new facility, on the last day of the
month following the commencement of discharge.
Starting on December 21, 2020, the permittee must electronically report the following
compliance monitoring data and reports, when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
• Clean Water Act(CWA) Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver,from the Division (see "How to
Request a Waiver from Electronic Reporting" section below).
2. Electronic Submissions -
In accordance with 40 CFR 122.41(1)(9),,the permittee must identify, the initial recipient at
the time of each electronic submission:\The permittee should\use--the EPA's website
resources to identify the initial recipient for the electronic submission. •-,
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the
entity (EPA or the state authorized by EPA,to implement the NPDES program) that is the
designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the-appropriate electronic reporting tool
for each type of<<electronic`submission and for each state. Instructions on how to access and
use the appropriate,electronic reporting tool,will be available as well. Information on EPA's
NPDESElectronic Reporting\ Rule is found at:
haps;//www.federalregister gov/documents/201,5/10/22/2015-24954/national-pollutant-
dis¢liarge=elimination-system-npdes-electro`nic-reporting-rule
Electronic submissions must start- .by the dates listed in the"Reporting Requirements" section
above.
3. How to Request'a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To
obtain an electronic reporting waiver, a permittee must first submit an electronic reporting
waiver request to the Division. Requests for temporary electronic reporting waivers must be
submitted in writing to the Division for written approval at least sixty (60) days prior to the
date the facility would be required under this permit to begin submitting monitoring data and
reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon
expire. At such time, monitoring data and reports shall be submitted electronically to the
Division unless the permittee re-applies for and is granted a new temporary electronic
reporting waiver by the Division. Approved electronic reporting waivers are not
transferrable. Only permittees with an approved reporting waiver request may submit
7 of 7

Permit NC0000175
monitoring data and reports on paper to the Division for the period that the approved
reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are
found on the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B.
(11.) (d)1
All eDMRs submitted to the perr7it issuing authority shall`be.'signed by a person described in
Part II, Section B. (11.)(a) or by duly authorized representative of that person as described
in Part II, Section B. (11.)(b). 1 person, and not/a position, must be delegated signatory
authority for eDMR reporting purposes. . 4L` ,, \
b
For eDMR submissions, the person signing and:submitting theDMR must obtain an eDMR
user account and login credentials to acc ss;the eDMR system.'For.more information on
North Carolina's eDMR system, registering° or eDMR and obtaining'an eDMR user account,
please visit the following web page: `', \
http://deq.nc.gov/about/divisions/water-resources/edmr
Certification. Any person submitting an-electronic DMR'using the state's eDMR system
shall make the following certification [40 CFR.122.22]. NO OTHER STATEMENTS OF
CERTIFICATION-VIM BE•ACCEPTED,: /
\ � f,
J� \ ��.1 i� '� l
"I certify, under penalty of w, that this document and all~attachments were prepared under
my direction or supervision in accordance\with a system designed to assure that qualified
personnel-properly gather and evaluate
the information submitted. Based on my inquiry of
the person-or persons who Mange'the s'ystem, or those persons directly responsible for
gaiheri g the information, the information-submitted is, to the best of my knowledge and
belief,, true, accurate,-'-aiid complete. I am aware that there are significant penalties for
submitting false information=,including the possibility of fines and imprisonment for knowing
violations.'Y \ t
5. Records Retention-[Supplements Section D. (6.)1
The permittee shall"retain1records'j of all Discharge Monitoring Reports, including eDMR
submissions. These records or copies shall be maintained for a period of at least 3 years from
the date of the report. This period may be extended by request of the Director at any time [40
CFR 122.41].
8 of 7

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