NCG020818_COMPLETE FILE - HISTORICAL_20161020

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
IV c)) O�I
DOC TYPE
HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE
YYYYMMDD

Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
Gregory Taveras
The Quartz Corp USA
P.O. Box 309
Spruce Pine, NC 28777
Dear Mr. Taveras:
PAT MCCRORY
Oorerrror
DONALD R. VAN DGR VAART
ScPrernn
TRACY DAVIS
RECEIVED Obecio
October 18, 2016 OCT 2 Q 2016
CENTRAL FILES
DWR SECTION
Subject: General Permit No. NCG020000
The Quartz Corp USA—Altapass Mine &
Plant
COC NCG020818
Mitchell County
We received a request to modify the continuous flow measurement requirement (Footnote 7 to
Table 7 in the amended COC issued in November 2015) from Mr. Benne Hutson of McGuire Woods on
behalf of The Quartz Corp on July 26, 2016. The request asserted that none of the discharge points at the
Altapass operation has continuous flow. Consequently, The Quartz Corp is asking NC DEMLR to remove
the continuous flow monitoring requirement for this facility.
The DEMLR Stormwater Program hereby approves the modification request to allow an
instantaneous grab sample of flow or alternative estimate of a daily flow rate (for example, using rainfall
amount, percent impervious area, and/or runoff coefficient to calculate a daily flow rate in cfs from a
precipitation event) in lieu of a continuous flow measurement reading to fulfill the flow monitoring
requirement for outfalls currently discharging wastewater under NCG020818 at this operation. Please
maintain this letterfor,`your records for the duration of coverage under this General Permit. If
circumstances of the outfalls at th1is site change in the future, you must notify the Division.
In addition, Mr. Hutson's letter asked for clarification about why mining wastes are classified as
wastewater discharges. Any wastes (e.g., mine tailings) from the mining process that contacts stormwater
is considered wastewater. This determination is not U.S. EPA policy but rather is based on the definition
of "process wastewater" in federal regulations in 40 CFR 122.2: "any water which, during manufacturing
or processing, comes into direct contact with or results from the production or use of any raw material,
intermediate product, finished product, byproduct, or waste product."
Mr. Hutson's letter expresses concern about EPA's interpretation being based on data from
western U.S. mines "where mine face is more likely to be reactive and leach metals." Perhaps the
company's concern centers around mine face or mine excavation stormwater drainage instead of "mining
wastes." We know there has been confusion about what stormwater run-off at a mine is considered
wastewater, especially after renewal of the NCG020000 General Permit and EPA's intensified focus on
industrial mineral mines. In particular, the question about whether mine excavation area rainfall drainage
should always be considered "mine dewatering" (and therefore wastewater) has come up.
State of North Carolina I I?nvinunmental Quality I Energy, Mineral and Land Resources
1612 Mail Service Center 1512 N. Salisbury St. I Raleigh, NC 27699
919 707 9200 T
r' rY. ,w,� _.i�.9•t. �a tC..,.wx�;.y�.i+ifrp'iCt,:1F:tif ?I;rrV/
4
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NCG020818 Modification Request
October 18, 2026
Page 2
In response, DEMLR's Stormwater Program developed a guidance document to assist regional
staff and NCG02 permittees in determining which discharges at a mine operation are stormwater and
which are wastewater (enclosed). This guidance is also available on our website. Note the Division
recognizes th'e're is some ambiguity and debate about what qualifies as "mine dewatering" in the federal
regulations, and that there may be situations where mine excavation run-off does not clearly fit the
definition of mine dewatering in 40 CFR 436, which is specific to the type of mine.
The task is not always straightforward because there are different implementation possibilities
when considering the definition of "process wastewater' in 40 CFR 122.2, the definition of "stormwater
discharge associated with industrial activity" in 40 CFR 122.26 (b)(14), and "mine dewatering" definitions
in various sub -parts of 40 CFR 436. DEMLR must apply a determination that is consistent with federal
requirements and expects the permittee to sample discharges accordingly. We hope this guidance helps
clear up the questions you have and better understand NC's Stormwater Program's rationale. If you have
questions about specific discharge outfalls at your site, please contact the Asheville Regional Office
Stormwater Program staff to arrange a site visit.
This permit modification does not affect the legal requirements to obtain other permits which
may be required by the Division of Energy, Mineral, and Land Resources, or permits required by the
Division of Water Resources (DWR), Coastal Area Management Act, or any other federal or local
governmental permit that may be required. If these monitoring modifications are unacceptable to you,
you may apply sooner for an individual NPDES discharge permit.
If you have any questions concerning this modification, please contact Bradley Bennett at
telephone number [phone], or Bethany Georgoulias at telephone number [phone].
Sincerely,
- ,4
for Tracy E. Davis, P.E., CPM
cc: Benne C. Hutson, McGuire Woods
Todd Mickleborough, The Quartz Corp
Toby Vinson, DEMLR Land Quality Section
NPDES Wastewater Permitting Files, NCO000353
Shawna Riddle, DEMLR Asheville Regional Office
Linda Wiggs, DWR Asheville Regional Office
Kip Tyler, EPA Region IV NPDES Permitting and Enforcement Branch
Stormwater Program Files
DWR Central Files
State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
1612 Mail Service Center 1512 N. Salisbury St. I Raleigh, NC 27699
919 707 9200 T

Guidance for determination of NPDES regulatory status of various discharges on a mine site (Active and Inactive Mines)
Jun 3, 2016; NC DEQ 5tormwoter Program
Feature contributing
'not:f
Rule or permit citations;
to a discharge
Conditions and comments
sw
ww
regulated •
other guidance
1
Undeveloped areas at the site, w/o permitted
Other areas closed out and fully reclaimed, too.
X.—.- ,.
Excluded from starmwater def. in
mining activity
40CFR122.26(b)(14)
2
Overburden stockpile
Not mixed with any mined materials or other wastewater
X -
L. ; _
overburden' at
drainage. Better when fully stabilized.
40CFR122.26(b)(14)(iii)
3
Soil borrow area drainage
Like a borrow area at a construction site.
X :'
DEQ BPJ interp. of citation above.
4
Vehicle maintenance areas
Additional monitoring, if qualified by motor oil usage. If
X,
Consistent w/other regulated activity
commingled with WW, discharge instead subject to
identified at 40CFR122.26(b)(14)(viii);
wastewater sampling; additional 0&G sampling could be
DEQ BPJ
recommended but not required (per current permit).
5
Equipment boneyards
X'-,;
refuse sites' in 122.26(b)(14)
6
AST Secondary containment release
If uncontaminated.
tank farms' in 122.26(b)(14)
7
Access and haul roads, without dust control
Except: roads off -site are not regulated
X ' - .
W
` X,
'access roads' in sw definition in
roads -
40CFR122.26(b)(14)
8
Access and haul roads, with"dust control, when
If just stormwater runoff from sprayed roads. OK to spray
X ='=r, :.
'` �'"
"'=f'
Above citation plus DEQ BPJ for spraying
Ws stormwater
with mine pit water as Ions as no significant or sustained
mine dewatering water for dust control.
flow, or discharge to surface waters results. Any
Inspector BPJ to determine if excessive
chemicals used should be approved and used in proper
- ='
a -
flow or potential WQ problem is basis
doses to prevent aquatic toxicity — refer to approved
for wastewater determination.
PAMS list or consult DWR Aquatic Toxicology Branch.
,-J - .
9
Access and haul roads, with dust control, when
If recycled or process wastewater sprayed, or if spraying
X
="
NPDES process ww definition at
it's wastewater
excessive enough to cause sustained flow or discharge to
�.,
; `:
40CFR122.2 plus DEQ BPJ on prudent
surface waters. Also wastewater if any chemicals applied
K
protection for NC surface waters.
are not approved by DWR Aquatic Toxicology or are used
'`
Inspector BPJ to determine if spray
in amounts that may cause aquatic toxicity.
} ''"
-x,,
excessive. .
10
Stormwater-only sediment basins
If no wastewater contribution (mine dewatering, process
stormwater in: stormwater out, DEQ BPJ
ww, flow from active mining area.)
11
Stormwater-only sediment basin cleaning spoil
Spoil may not impact wetlands.
X ..
_
15A NCAC 26.0231, NC wetlands
drainage
; xe
5+'
standards
12
Wastewater treatment or recycle basin cleaning
includes basins that treat wastewater or mine
X"
• '
Wastewater in: wastewater out, DEQ
spoil drainage
dewatering water.
-
BPJ
13
Processing plant: recycle water overflow or
Even if caused by rainfall or mixed with stormwater
=.
�X
'
40CFR122.2 def. process ww;
process wastewater
runoff. Except: segregated areas that do not drain
plant yards' in stormwater definition at
wastewater would be stormwater, but these are rare.
X,':eg,arei+"
-
122.26(b)(14)
14
Final product stockpile drainage, when it's
For most construction materials including sand, gravel,
,XT_
-
final products' in stormwater defat
stormwater
and stone; industrial sand:
40CFR122.26(b)(14)
15
Final product stockpile drainage, when it's
For some mineral mines where 'final' product is subject
- -
: X
tomes into direct contact
wastewater
to further processing; and if final product exposes
° ' -
with... intermediate product final
minerals, metals, or chemicals with aquatic toxicity or
product...' 40CFR122.2 Def. of process
other pollutant risk: DEQ may regulate as WW.
wastewater; DEQ BPJ
16
Mine lL"it dewatering, pumped or drained by
Including contributions from rainfall and groundwater.
e
X :'
-
40CFR436.21, .31, and .41;
efforts of the operator
DEQ BPJ default for all mines
17
Mine tt dewaterin via overflow due only to
1Z g, y
DEQ considers these types of discharges, including those
, �: , ,,
X
�� ' ➢� } ',
40CFR436.31 Construction sand &grave!
rain or groundwater seepage
from clay pits (not specified in regs), as regulated
-;
t,
have effluent limits and "mine
wastewater. Except: such wet pit overflows from 436.11
X,.m,Sned
:, z a
= ;_
dewatering" includes wet pit overflows;
. Pit werliow '_
a;
'436.41 Industrial sand -same;
r

Guidance for determination of NPDES re ulato status of various discharges on a mine site Active and Inactive Mines
Jun 3, 2016; NC DEQ Stormwater Program
Feature contributing
riot ' _
Rule or permit citations;
to a discharge
Conditions and comments
sw- ,
. ww ;,
A;cegulated -
other guidance
Crushed Stone treated as stormwater, as land as not
- _"
-
-
DEQ BPJ for 436.21 Crushed stone
commingled with process generated wastewater.
:.
narrower mine dewatering definition,
`.4
DEQ BPJ for clay.
18
Mine face / Mine excavation area drainage (not a
e.g., mining an area on a mountain side or sand mine 1
X
z
DEQ BPJ; Def. of mine dewatering in
pit), when it's stormwater
excavation area(s). When waterfrom the mine area is
40CFR436.21, .31, and .41. Situations
not "pumped, drained, or Otherwise removed
' '
=Y z
where stormwater inside a mine is not
from the mine through the efforts of the mine
intentionally routed out of the mine by
•
operator efforts.
operator." But, often mine excavation area drainage
.
will be wastewater per 19.
19
Mine face /Mine excavation area drainage (not a
e.g., active mining area on a mountain side or sand mine
_
X.
Consistent with mine dewatering
pit), when it's wastewater
excavation area(s). Any "water that is impounded
y'e
definition in citations above and 'direct
or that collects in the mine and is pumped,
�
contact with'40CFR122.2 def. of process
drained, or otherwise removed from the mine
•
-
``
;,
wastewater. includes grading,
channeling, ditching, or outlet
through the efforts of the mine operator" is
}construction
intended to remove/drain
subject to effluent limitation guidelines. Also, mines
-;a'_-,.`
water from the active mining area. if
where mine face exposure results in significant risk to
exposure includes parameters not in
water quality standards (note, an individual permit may
.NCG02 (metals, for example)a general
be required to monitor parameters not in NCG02).
`" `=
permit may not be appropriate.
20
Legacy structures at a closed out and reclaimed
And for closed out and fully reclaimed portions of an
X:",.
Excluded from stormwater def. in
mine: e.g. stabilized overburden stockpiles,
operating site
-_
40CFR122.26(b)(14); not included in
stormwater basins, and pit/quarry overflows
process wastewater definition at
40CFR122.2
21
Deemed permitted discharges
Subject to NC rule, but not this permit. 2T covers
-
"' " `p ' '-
15A NCAC 2H .0106(f)
discharges to the land surface.
--
15A NCAC 2T .0113(a)(15),(16)
Notes:
• What is covered by NCG02? Stormwater and wastewater discharges from construction materials quarries, mineral mines, and stand-alone processing plants associated with them;
and clay mines. What is not covered by NCG02? Discharges from tourist gem mines; brick manufacturing w/o cloy pits (NCG07), coal, peat oil & gas; metal mining; DOT borrow
areas (NCS000250), in -stream sand dredging (NCG52), mine operations already covered under an individual discharge permit.
• Wastewater commingled with stormwater is regulated as wastewater. Even if the discharge is rainfall driven.
• Whether regulated with a permit under the NPDES program or not, mining discharges may not cause or contribute to a violation of an in -stream water quality. standard. Bring
DWR RO Supervisor into loop if observed site conditions suggest the potential for a WQS violation.
• Whether regulated with a permit under the NPDES program or not, mining discharges or operations may not: drain wetlands due to dewatering in the mine; blow out wetlands
due to the volume of discharges; or damage wetlands with pollutants from the mine property. Bring DWR RO Supervisor into the loop if observed site conditions suggest the
potential for wetlands damage whether intentional or incidental/accidental.
• The receiving water classification may determine the numerical value of the stormwater benchmarks or the wastewater limitations. See permit text.
• What if continuous flow measurement of wastewater is impractical or overly burdensome, and discharge isn't pumped (no pump curves)? EPA has advised (3/24/2016) that
continuous flow meter may not be necessary or practical in all situations, especially where flow discharge is infrequent; DEQ regions can make accommodations to allow permittees
to use an alternative method to estimate discharge flows when appropriate. Consider that discharges to HQWs are subject to flow limits in the permit (based on NC WQS). Permit
footnote language came from NPDES WW permit standard language and has remained in NCG02 for several permit cycles; DEQ will revisit at renewal.
Limitation of authority: This guidance table is intended as an on -site aid for DEMLR inspectors and for permittees. It does not replace relevant NC low, federal and state rules,
NC602 permit conditions, DEMLR polity, or DEMLR implementation precedent.

North Carolina Department of Environmental Quality
Pat McCrory
Governor
Gregory Taveras
The Quartz Corp USA
520 Altapass Road
Spruce Pine, NC 28777
Dear Mr. Taveras:
November 16, 2015
Donald R. van der Vaart
Secretary
REeffiVEb
NOV 18 2015
CENTRAL FILES
DWR SECTION
Subject: General Permit No. NCG020000
The Quartz Corp USA—Altapass Mine & Plant
COC NCG020818
Mitchell County
In accordance with your request for a discharge permit received on June 30, 2014, we are
forwarding herewith the subject certificate of coverage to discharge under the subject state — NPDES general
permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and
the Memorandum of Agreement between North Carolina and the US Environmental Protection Agency
dated October 15, 2007 (or as subsequently amended).
Please take notice that this certificate of coverage is not transfer -able except after notice to the
Division of Energy, Mineral, and Land Resources. The Division may require modification or revocation and
reissuance of the certificate of coverage (COC).
Coverage under this General Permit forth is particular faciIity is granted with the condition that the
permittee performs additional sampling requirements as outlined in the amended conditions to the COC.
These special provisions were prompted by results of sampling at this facility during the week of June 8,
2015, as requested by EPA Region 4 staff who performed a Compliance Sampling Inspection (CSI) at the end
of March 2015. Sample concentrations raised concerns about metals levels in the discharges. The DEQ
concluded that more data was needed to evaluate these discharges and potential water quality impacts. The
additional provisions for this COC include:
1) In addition to the parameters in NCG020000, sample each stormwater discharge outfall (SDO)
quarterly for five metals, fluoride, chloride, and total hardness listed in Table 1 as amended on page 2
of the COC. Benchmark values apply for many of these added parameters, and the permittee must
follow tiered responses as outlined in the permit.
2) 1n addition to the parameters in NCG020000, sample each wastewater discharge quarterly for five
metals, fluoride, chloride, and total hardness listed in Table 7 as amended on page 3 of the COC.
Division of Energy, Mineral, and Land Resources
Energy Section • Geological Survey Section • Land Quality Section
512 North Salisbury Street, Raleigh, North Carolina 27604 • Internet: http:l/portal.ncdenr.org/web/Ir/
Mailing Address: 1612 Mail Service Center, Raleigh, North Carolina 27699-1612.919-707-92001 FAX: [phone]
An Equal Opportunity 1 Affirmative Action Employer— 50% Recycled 110% Post Consumer Paper

NCG020818 Renewal COC
November 16, 2015
Page 2
These additional parameters include metals and other constituents which may be present or will
help us interpret the measurements (such as estimating the amounts of metals that are in dissolved form).
The Division will consider the data upon submittal to determine the most appropriate permitting actions. It
is possible that this facility will be directed to apply to the Division of Water Resources (DWR) for an
individual NPDES discharge permit (or modification of its existing wastewater individual permit) priorto the
expiration of this General Permit in 2020.
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Energy, Mineral, and Land Resources, or permits required by the Division of Water Resources
(DWR), Coastal Area Management Act, or any other federal or local governmental permit that may be
required. If the conditions as stipulated in the COC are unacceptable to you, you may apply sooner for an
individual NPDES discharge permit.
If you have any questions concerning this permit, please contact Bradley Bennett at telephone number
[phone], or Bethany Georgoulias at telephone number [phone].
Sincerely,
L E'Aelz��
for Tracy E. Davis, P.E., CPM
cc: Toby Vinson, DEMLR Land Quality Section
Tom Belnick, DWR Water Quality Permitting Section
NPDES Wastewater Permitting Files, NCO000353
Stan Aiken, DEMLR Asheville Regional Office RE
Linda Wiggs, DWR Asheville Regional Office
Kip Tyler, EPA Region IV NPDES Permitting and Enforcement Branch
Stormwater Permitting Program Files
DWR Central Files

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
GENERAL PERMIT NO. NCG020000
CERTIFICATE OF COVERAGE No. NCGO20818
STORMWATER AND WASTEWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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, and the North
Carolina Administrative Code in NCAC 15A 02H .0114(b)(1), as amended,
The Quartz Corp USA
is hereby authorized to discharge stormwater and wastewater from a facility located at
Altapass Mine & Plant
530 Altapass Road
Spruce Pine
Mitchell County
to receiving waters designated as North Toe River, a class C;Tr water in the French Broad
River Basin, in accordance with the effluent limitations, monitoring requirements, and
other conditions set forth in Parts 1, II, II1, and IV of General Permit No. NCG020000 as
attached, and as amended in pages 2-3 of this Certificate of Coverage.
Amended conditions
1. This Certificate of Coverage (pp. 1-4) is an enforceable part of the permit.
2. In accordance with 15A NCAC 02H .0114(b)(1), the monitoring program in Part IV
Section A, Table 1 Analytical Monitoring Requirements for Stormwater from
Mining Activities, and Section D, Table 7 Monitoring Requirements for
Wastewater Discharges of this permit are amended as follows:

Table 1 Analytical Monitoring Requirements for Stormwater Discharges from Mining
Activities
Discharge
Characteristics
Units
Measurement
Fre uenc l
Sample
Type2
Sample
Location3
Benchmark
Settleable Solids
MI/1
Quarterly
Grab
SDO
0.1 MI/1
Total Suspended Solids
mg/1
Quarterly
Grab
SDO
50 m I
Turbidity4
NTU
Quarterly
Grab
SDO, U & D4
10 NTU
Aluminum, Total Recoverable5
mg/1 I
QuarterlyGrab
SDO
0.75 mg/1
Copper, Total Recoverable5
mg/1
Quarterly
Grab
SDO
0.010 mg/1
Lead, Total Recoverable5
Mg/1
Quarterly
Grab
SDO
0.075 mg/1
Nickel, Total Recoverable5
Mg/1
Quarterly
Grab
SDO
0.335 mg/1
Zinc, Total Recoverable5
mg/1
Quarterly
Grab
SDO
0.126 mg/1
Total Chlorides
m ]
Quarterly
Grab
SDO
860 m
Total Fluorides
mg/1
Quarterly
Grab
SDO
6 rn
Total Harness as CaCO3 S
mg/1
uarterly
Grab
SDO
N/A
Total Rainfall6
I inches
I Quarterly--
--
N/A
Footnotes:
1. Measurement Frequency: Quarterly (unless other provisions of this permit require monthly sampling)
during a measureable storm event, until either another permit is issued for this facility or until this
permit is revoked or rescinded. if the facility is monitoring monthly because of Tier Two or Three
response actions under the previous General Permit, the facility shall continue a monthly monitoring and
reporting schedule in Tier Two or Tier Three status until relieved by the provisions of this permit or the
Division.
2. Grab samples shall be collected within the first 30 minutes of discharge. Where physical separation
between outfalls prevents collecting all samples within the first 30 minutes, the permittee shall begin
sampling within the first 30 minutes, and shall continue until completed.
3. Sample Location: Samples shall be collected at each stormwater discharge outfall (SDO) unless
representative outfall status (ROS) has been granted. A copy of the Division's letter granting ROS shall be
kept on site with the SPPP.
4. Turbidity must be monitored at the stormwater discharge outfall (SDO). In addition to the SDO, the
permittee may elect to also monitor turbidity in the receiving water, directly upstream (U) and
downstream (D) of the stormwater discharge outfall or group of outfalls to demonstrate the discharge
has not caused a water quality standard violation of turbidity. If SDO turbidity level exceeds the
benchmark, and the permittee cannot demonstrate the discharge has not caused a violation of the
instream water quality standard, the Division may require the permittee to monitor turbidity up -
and downstream as part of a Tier 2 or 3 response.
S. Benchmark values apply for these parameters and prompt Tier responses as outlined in the General
Permit. Benchmark values for metals are based on one half the Final Acute Value (1/z FAV), a threshold
used to protect against acute impacts to aquatic life.
6. For each sampled measureable storm event the total precipitation must be recorded. An on -site rain
gauge or local rain gauge reading must be recorded.
2 ` COC No. NCG020818
I effective November 16, 2015

Table 7 Monitoring Requirements for Wastewater Discharges in Section D - 1., 2., 3., & 4.
Discharge
Characteristics
Units
Measurement
Fre uenc 1
Sample
Type
Sample
Location3
Receiving
Waters
HZ
Standard
Quarterlyl
Grab
E
All
Total Suspended Solids2, 4
mg/i
Quarterlyl
Grab
E
All
Turbidi 2, 3
NTU
guarterlyl
Grab
E, U & D3
All
Settleable Solids2, 5
ml/I
Quarterlyl
Grab
E
HQW, ORW, SA, SB,
PNA, Tr
Aluminum, Total Recoverable6
m I
Quarterlyl
Grab
E
All
Copper, Total Recoverable6
mg/1
Quarterlyl
Grab
E
All
Lead, Total Recoverable6
mg/1
Quarterlyl
Grab
E
All
Nickel, Total Recoverable6
mg/1
Quarterlyl
Grab
E
All
Zinc, Total Recoverable6
m l
Quarterlyl
Grab
E
All
Total Chloride6
m l
Quarterlyl
Grab
E
All
Total Fluoride6
m I
Quarterlyl
Grab
E
All
Total Harness as CaCO3 6
m I
Quarterlyl
Grab
E
All
Daily Flow Rate?
cfs
Quarterlyl
-
E
All
Footnotes:
1. The monitoring frequency is quarterly.
2. Except for mine dewatering of clay pits, a grab sample is not required for these parameters from a
basin/pond designed to contain or treat mine dewatering wastewater that only discharges in
response to rainfall in excess of the 10-yr, 24-hr storm.
3. Sample Location: E - Effluent,U - Upstream, D - Downstream. Turbidity must be monitored at the
effluent (E). If effluent levels exceed the Water Quality Standard of the receiving water, the permittee
must begin sampling turbidity directly upstream (U) and downstream (D) of the effluent outfall or group
of outfalls, in addition to the effluent, upon the next monitoring period. The permittee may contact the
DEMLR Regional Office for assistance in determining the best instream sample points. The RO may also
advise the permittee to relocate self -established instream sample points if appropriate.
4. All facilities that are mining Industrial Sand are required to monitor TSS and are subject to the TSS
limits in Table B. All other types of mines covered by this permit are also required to monitor TSS, but
are not necessarily subject to the TSS limits in Table 8, unless discharge is to HQW, ORW, or PNA waters.
S. Only facilities discharging to waters classified as HQW, ORW, SA, SB, Tr, or PNA are required to monitor
for settleable solids.
6. No effluent limitation applies to these parameters.
7. Daily flow rate shall be recorded by a continuous flow measurement instrument Alternatively, pump
curves and pump logs may be used as a means to calculate the daily now rate.
3 1 COC No. NCG020818
effective November 16, 2015

This Certificate of Coverage shall become effective November 16, 2015.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day, November 16, 2015.
for Tracy E. Davis, P.E., Director
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission
4 I COC No. NCG020818
effective November 16, 2015