NC0004961_Issuance of Permit_20160212

WaterResources
ENVIRONMENTAL QUALITY
February 12, 2016
Mr. Harry Sideris, Senior Vice President
Environmental, Health and Safety
Duke Energy Carolinas, LLC
Mail Code EC13K
P.O. Box 1006
Charlotte, North Carolina 28201-1006
PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Secretary
S. JAY ZIMMERMAN
Subject: NPDES Permit Issuance
Permit No. NC0004961
Riverbend Steam Station
Gaston County
Dear Mr. Sideris:
Director
The Division of Water Resources is forwarding herewith the Final NPDES permit for Riverbend
Steam Station. This permit renewal is issued pursuant to the requirements of North Carolina
General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the
U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended).
A public hearing was held on April 8, 2015 in Lincolnton seeking comments on the Draft
permit. This Final permit incorporates recommendations of the DWR Hearing Officer, EPA, as
well as other changes. Listed below are all changes from the Draft permit:
• The Outfall 010 was eliminated and the Special Condition A. (16.) was updated to meet
the requirements of The Water Quality Standard Regulatory Revisions Final Rule that has
become effective on October 20, 2015.
• Fish tissue monitoring was increased to annually from once every five years to address the
EPA comment. Please see Special Condition A. (12.).
• The Additional Conditions and Definitions Special Condition was added to the permit to
address the EPA comment. Please see Special Condition A. (20.).
• Measurement frequency was changed from "Episodic" to "Per discharge event" (Outfall
002A) to address the EPA comment.
• The Flow limit was added for Outfall 002 (dewatering phase) to address the EPA
comment.
• The automatic pump shutoff requirements for TSS limit exceedance was added for Outfall
002 to address the EPA comment.
• The variance from Monthly Average TSS limit (Outfall 002 and Outfall 011) was eliminated
to address the EPA comment.
State of North Carolina I Environmental Quality I Water Resources
1617 Mail service Center I Raleigh, North Carolina 27699-1611
919 707 9000

• Monitoring frequency for all parameters was increased to Weekly for Outfall 002 to address
the EPA comment.
• The specific date of December 31, 2019 replaced 4.5 years for Outfall 002. This change
was made to address EPA comment. Please see Special Condition A. (2.).
• Clarifying language was added to define the discharge from the ash pond under normal
operating conditions to address the Hearing Officer recommendation and the comment
from the permittee. Please see Special Condition A. (2).
• The definition of dewatering was added to Special Condition A. (3.). The definition was
added to address the Hearing Office recommendation and the comment from the
permittee.
• The effluent concentration for Whole Effluent Toxicity was changed to correct a typo, the
correct concentration is 2.7%. Please see footnote to Special Conditions A. (2.) and A. (3.).
• The footnote describing conditions for monitoring Total Copper and Total Iron was
removed (Outfall 011) to correct an error.
• Description of the wastewater sources for Outfall 001 and Outfall 002 was updated to
reflect the current status of the facility.
• Clarifying language was added to the Outfall 002 to define the conditions under which the
limits for Total Copper and Total Iron are applicable. This change was made to address
the Hearing Officer recommendation.
• A distinct outfall was created for each seep with the effluent limits equivalent to the water
quality standards, Technology -Based limits (TSS and Oil & Grease) were also added in
accordance with the 40 CFR 423.
• The monthly seep monitoring was extended to a 12 month period, after which the
monitoring will be reduced to quarterly.
• The following requirements were added to the Condition A. (2.). — Outfall 001: flow limit;
use of a floating pump station with free water skimmed from the basin surface using an
adjustable weir; daily monitoring of flow; continuous monitoring of TSS with auto pump
shut-off if TSS concentration (15 minute average) exceeds half the maximum daily TSS limit
(pumping will be allowed to continue if interruption might result in a dam failure or
damage); real time pH monitoring with an auto shut-off if the 15 -minute running average
PH falls below 6.1 standard units or rises above 8.9 standard units; drawdown to no less than
three feet above the ash; and monitoring for total chromium, total lead, total cadmium, and
total dissolved solids.
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty
(30) days following receipt of this letter. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the office of
Administrative Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless
such a demand is made, this permit shall be final and binding.
Please take notice that this permit is not transferable except after notice to the Division of Water
Resources. The Division may require modification or revocation and reissuance of the permit. This
permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Water Resources, the Division of Energy, Mineral, and Land Resources, the Coastal
Area Management Act, or any other federal or local governmental permit.

If you have any questions on this permit, please contact Sergei Chernikov at 919-807-6386.
Sincerely,
S. Jay Zimmerman, P.G.
Director, Division of Water Resources
Hardcopy: Central Files
NPDES Files
Mooresville Regional Office, SWPS
Email: US EPA, Region N
Aquatic Toxicology Unit
David Merryman, Catawba Riverkeeper, [[e-mail]]

Permit NC0004961
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PF.RMTT
TO DISCHARGE WASTEWATER UNDER THE
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, as amended,
Duke Energy Carolinas, LLC
is hereby authorized to discharge wastewater from a facility located at the
Riverbend Steam Station
Mount Holly
Gaston County
to receiving waters designated as the Catawba River (Mountain Island Lake) in the
Catawba River Basin
in accordance with effluent limitations, monitoring requirements, and other
applicable conditions set forth in Parts I, II, III, and Appendix A.
This permit shall become effective March 1, 2016.
This permit and authorization to discharge shall expire at midnight on February 29, 2020.
Signed this day February 12, 2016.
S. Jay Zimmerman P.G., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 27

Permit NC0004961
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits 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.
Duke Energy Carolinas, LLC is hereby authorized to:
Continue to discharge:
• Water from the plant chiller system (outfall 001).
• Ash basin discharge (outfall 002) consisting of consisting of stormwater
from roof drains and paving, treated groundwater, track hopper sump
(groundwater), coal pile runoff, general plant/trailer sanitary wastewater,
turbine and boiler rooms sumps, vehicle rinse water, and stormwater from
pond areas, upgradient watershed, and miscellaneous stormwater flows.
• Yard sump overflow (outfall 002A).
12 potentially contaminated groundwater seeps (outfalls 101-112).
• Wastewater, stormwater and groundwater (outfall 011).
From a facility located at Riverbend Steam Station, Mount Holly in Gaston
County, and
2. Discharge wastewater from said treatment works at the location specified on
the attached map into the Catawba River, which is classified WS -IV and B -CA
waters in the Catawba River Basin.
Page 2 of 27

Permit NC0004961
Part I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
00 1) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.)
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge plant chiller system from outfall 001. Such discharges shall be
limited and monitored3 by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement Sample Type Sample
Frequency Location'
Flow, MGD
Monthly Pump Logs Influent or
Effluent
Temperature of
Monthl4- Grab Effluent
Temperature E -F 2
89.6 f32 -Cy
Monthly Grab Downstream
Notes:
1. Downstream sampling point: downstream at Mountain Island Lake. If samples are collected
below the water surface, the Permittee will record the sample depth on the DMR form.
2. The ambient temperature shall not exceed 89.60F (32.00C) and is defined as the daily average
downstream water temperature. When the Riverbend Station effluent temperature is recorded
below 89.60F (32.00C), as a daily average, then monitoring and reporting of the downstream water
temperature is not required. In cases where the Permittee experiences equipment problems and
is unable to obtain daily temperatures from the existing temperature monitoring system, the
temperature monitoring must be reestablished within five working days.
3. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.) .
Chlorination of the once through condenser cooling water, discharged through outfall 001, is
not allowed under this permit. Should Duke Energy wish to chlorinate its condenser cooling
water, a Division permission must be requested and received prior to commencing
chlorination.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 27

Permit NC0004961
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
002 -normal operation) [15A NCAC 02B.0400 et seq., 02B.0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 002 - Ash Pond Discharge (removing the free
water above the settled ash layer that does not involve mechanical movement of the ash).
Such dischares shall be limited and monitored6 bv the Permittee as st)ecified below:
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Fre uenc
Flow
5.74 MGD
Daily
Pump logs or
estimate
Influent or Effluent
Total Suspended Solids8
23.0 m /L
75.0 m /L
Weekly
Grab
Effluent
Oil and Grease
11.0 m /L
15.0 m /L
Weekly
Grab
Effluent
Total Copper'
1.0 m /L
1.0 m /L
Weekly
Grab
Effluent
Total Iron'
1.0 m /L
1.0 m /L
Weekly
Grab
Effluent
Total Arsenic
52.5 /L
72.5 /L
Weekly
Grab
Effluent
Total Selenium
68.0 /L
127.5 /L
Weekly
Grab
Effluent
Nitrate/nitrite as N
0.65 m L
0.85 m /L
Weekly
Grab
Effluent
Total Arsenic
10.5 pg/L7
14.5 pglU
Weekly
Grab
Effluent
Total Selenium
13.6 p lU
25.5 p 1U
Weekly
Grab
Effluent
Total Mercury
47.0 ng/L5
47.0 ng/L5
Weekly
Grab
Effluent
Nitrate/nitrite as N
0.13 m /L7
0.17 /V
Weekly
Grab
Effluent
Total Phosphorus, m /L
Weekly
Grab
Effluent
Total Nitrogen (NO2 + NO3 + TKN),
m /L
Weekly
Grab
Effluent
H2
Weekly
Grab
Effluent
Chronic Toxicity3
Monthly
Grab
Effluent
Turbidit 4, NTU
Weekly
Grab
Effluent
Total Chromium, /L
Weekly
Grab
Effluent
Total Cadmium, /L
Weekly
Grab
Effluent
Total Lead, /L
Weekly
Grab
Effluent
TDS, /L
Weekly
Grab
Effluent
Notes:
1. The limits for total copper and total iron only apply when chemical metal cleaning wastewaters
are being discharged.
2. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. The facility
shall conduct a real time pH monitoring with an auto shut-off if the 15 -minute running average
pH falls below 6.1 standard units or rises above 8.9 standard units.
3. Whole Effluent Toxicity shall be monitored by chronic toxicity (Ceriodaphnia) P/F at 2.7%, see
Part A. (5.) for details.
4. The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50
NTU. If the instream turbidity exceeds 50 NTU due to natural background conditions, the
discharge cannot cause turbidity to increase in the receiving stream.
NTU - Nephelometric Turbidity Unit.
5. The facility shall use EPA method 1631E.
6. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
7. The TBEL limits shall be met no later than December 31, 2019. This time period is provided
in order for the facility to budget, design, and construct the treatment system. Permit might
be re -opened to implement the final EPA Effluent Guidelines and more stringent limits
might be added.
8. The facility shall continuously monitor TSS concentration and the dewatering pump shall be
shutoff automatically when the one half of the Daily Maximum limit (15 minutes average) is
Page 4 of 27

Permit NC0004961
exceeded. Pumping will be allowed to continue if interruption might result in a dam failure or
damage.
The facility is allowed to drawdown the wastewater in the lagoon to no less than three feet
above the ash.
The facility shall use of a floating pump station with free water skimmed from the basin
surface using an adjustable weir.
The metal cleaning waste, coal pile runoff, ash transport water, domestic wastewater,
and low volume waste shall be discharged into the ash settling pond.
No chemicals, cleaners, or other additives may be present in the vehicle wash water
to be discharged from this outfall.
There shall be no discharge of floating solids or visible foam in other than trace
amounts. The level of water in the pond should not be lowered more than 1 ft/week,
unless approved by the DEQ Dam Safety Program.
Page 5 of 27

Permit NC0004961
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
002 -dewatering phase) [15A NCAC 0213 .0400 et seq., 0213 .0500 et seq.]
During the period beginning on the commencement date of the dewatering operations and lasting
until expiration, the Permittee is authorized to discharge from outfall 002 - Ash Pond Discharge
(Dewatering -removing the interstitial water). Such discharges shall be limited and monitored7 by
the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
MonthlyDaily Measurement Sample Type Sample Location
Average Maximum Frequency
Flow
1.45 MGD
Weekly
Pump logs or
estimate
Influent or Effluent
Total Suspended Solids'
23.0 m /L
75.0 m /L
Weekly
Grab
Effluent
Oil and Grease
11.0 m /L
15.0 m /L
Weekl
Grab
Effluent
Total Copper2
1.0 m 1L
1.0 m /L
Weekly
Grab
Effluent
Total Iron2
1.0 m /L
1.0 m /L
Weekly
_
Grab
Effluent
Total Arsenic
10.5 /L
14.5 /L
Weekly
Grab
Effluent
Total Selenium
13.6 /L
25.5 /L
Weekly
Grab
Effluent
Total Aluminum
3.18 m /L
3.18 m /L
Weekly
Grab
Effluent
Total Mercu
47.0 n IL6
47.0 n /L6
Week
Grab
Effluent
Nitrate/nitrate as N
0.13 m /L
0.17 m /L
Weekly
Grab
Effluent
Total Phosphorus, m /L
Weekly
Grab
Effluent
Total Nitrogen (NO2 + NO3 + TKN),
m /L
Weekly
Grab
Effluent
H3
Weekly
Grab
Effluent
Chronic Toxici a
Monthly
Grab
Effluent
Turbidi 5, NTU
Weekly
Grab
Effluent
Notes:
1. The facility shall continuously monitor TSS concentration and the dewatering pump shall be
shutoff automatically when the limits are exceeded.
2. The limits for total copper and total iron only apply when chemical metal cleaning
wastewaters are being discharged.
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. Whole Effluent Toxicity shall be monitored by chronic toxicity (Ceriodaphnia) P/F at 2.7%, see
Part A. (5.) for details.
5. The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50
NTU. If the instream turbidity exceeds 50 NTU due to natural background conditions, the
discharge cannot cause turbidity to increase in the receiving stream.
NTU - Nephelometric Turbidity Unit.
6. The facility shall use EPA method 1631E.
7. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See
Special Condition A. (18.).
The metal cleaning waste, coal pile runoff, ash transport water, domestic wastewater,
and low volume waste shall be discharged into the ash settling pond.
No chemicals, cleaners, or other additives may be present in the vehicle wash water
to be discharged from this outfall. There shall be no discharge of floating solids or
visible foam in other than trace amounts.
The level of water in the pond should not be lowered more than 1 ft/week unless
approved by the DEQ Dam Safety Program.
Page 6 of 27

I M I a LN U61110112 L6791l
A. (4.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
002A) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 002A — Yard Sump Overflows. Such discharges
shall be limited and monitored3 by the Permittee as specified below:
EFFLUENT
LIMITS
MONITORING REQUIREMENTS
CHARACTERISTICS
Monthly
Daily
Measurement
Sample Type
Sample Location'
Average
Maximum
Frequency
Flow, MGD
Per discharge
Estimate
Effluent
event
Total Suspended Solids
23.0 mg/L
75.0 mg/L
Per discharge
Grab
Effluent
event
Oil and Grease
11.0 mg/L
15.0 mg/L
Per discharge
Grab
Effluent
event
Fecal Coliform, CPU/100 mL
Per discharge
Grab
Effluent
event
Total Copper2
1.0 mg/Li
1.0 mg/L
Per discharge
Grab
Effluent
event
Total Iron2
1.0 mg/L
1.0 mg/L
Per discharge
Grab
Effluent
event
pH4
Per discharge
Grab
Effluent
event
Notes:
1. Effluent samples shall be collected prior to the discharge to the receiving stream.
2. The limits for total copper and total iron only apply when chemical metal cleaning
wastewaters are being discharged.
3. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
4. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
ALL FLOWS SHALL BE REPORTED ON MONTHLY DMRS. SHOULD NO FLOW OCCUR DURING A
GIVEN MONTH, THE WORDS -NO FLOW" SHOULD BE CLEARLY WRITEN ON THE FRONT OF
THE DMR. ALL SAMPLES SHALL BE OF A REPRESENTATIVE DISCHARGE.
Page 7 of 27

Permit NC0004961
A. (5.) CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (Outfall 002) [15A NCAC
02B .0200 et seq.]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubta at an effluent concentration of 2.7%.
The permit holder shall perform at a minimum, monft monitoring using test procedures outlined in
the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or
subsequent versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised- December 2010) or subsequent versions. Effluent sampling for this testing must be
obtained during representative effluent discharge and shall be performed at the NPDES permitted
final effluent discharge below all treatment processes.
If the test procedure performed as the first test of any single month results in a failure or ChV
below the permit limit, then multiple -concentration testing shall be performed at a minimum,
in each of the two following months as described in "North Carolina Phase II Chronic Whole
Effluent Toxicity Test Procedure" (Revised -December 2010) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR -1) for the months in which tests were performed, using the
parameter code TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally,
DWR Form AT -3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1623 Mail Service Center
Raleigh, North Carolina 27699-1623
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, and be certified by laboratory supervisor and ORC or 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 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 requirements or limits.
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 invalid test and will require immediate follow-up testing to be
completed no later than the last day of the month following the month of the initial monitoring.
A. (6.) BIOCIDE CONDITION
The permittee shall not use any biocides except those approved in conjunction with the permit
application. The permittee shall notify the Director in writing not later than ninety (90) days prior to
instituting use of any additional biocide used in cooling systems which may be toxic to aquatic life
other than those previously reported to the Division of Water Resources. Such notification shall
include completion of Biocide Worksheet Form 101 and a map locating the discharge point and
Page 8 of 27

Permit NC0004961
receiving stream. Completion of a Biocide Worksheet 101 is not necessary for the introduction of a
new biocide into an outfall currently being tested for toxicity.
A. (7.) SPECIAL CONDITIONS
The following special conditions are applicable to all outfalls regulated by NC0004961:
There shall be no discharge of polychlorinated biphenyl compounds.
Discharge of any product registered under the Federal Insecticide, Fungicide, and Rodenticide Act
to any waste stream which may ultimately be released to lakes, rivers, streams or other waters of
the United States is prohibited unless specifically authorized elsewhere in this permit. Discharge
of chlorine from the use of chlorine gas, sodium hypochlorite, or other similar chlorination
compounds for disinfection in the plant potable and service water systems and in sewage
treatment is authorized. Use of restricted use pesticides for lake management purposes by
applicators licensed by the N.C. Pesticide Board is allowed.
The Permittee shall report all visible discharges of floating materials, such as an oil sheen, to the
Director when submitting DMRs
A. (8.) PERMIT TERMS
The following are applicable to all outfalls regulated by NC0004961:
It has been determined from information submitted that the plans and procedures in place at
Riverbend Steam Station are equivalent to that of a BMP.
A. (9.) ASH SETTLING BASIN
Beginning on the effective date of this permit and lasting until expiration, there shall be no discharge
of plant wastewater to the ash pond unless the Permittee provides and maintains at all times a
minimum free water volume (between the top of the sediment level and the minimum discharge
elevation) equivalent to the sum of the maximum 24-liour plant discharges plus all direct rainfall and
all runoff flows to the pond resulting from a 10 -year, 24-hour rainfall event, when using a runoff
coefficient of 1.0. During the term of the permit, the Permittee shall remove settled material from the
ponds or otherwise enlarge the available storage capacities in order to maintain the required
minimum volumes at all times. The Permittee shall determine and report to the permit issuing
authority the following on an annual basis:
1) the actual free water volume of the ash pond,
2) physical measurements of the dimensions of the free water volume in sufficient detail to allow
validation of the calculated volume, and
3) a certification that the required volume is available with adequate safety factor to include all
solids expected to be deposited in the pond for the following year.
Present information indicates a needed volume of 86.2 acre-feet in addition to solids that will be
deposited to the ash pond; any change to plant operations affecting such certification shall be
reported to the Director within five days.
NOTE: In the event that adequate volume has been certified to exist for the term of the permit,
periodic certification is not needed.
A.(10.) GROUNDWATER MONITORING WELL CONSTRUCTION AND SAMPLING
The permittee shall conduct groundwater monitoring to determine the compliance of this NPDES
permitted facility with the current groundwater Standards found under 15A NCAC 2L .0200. The
monitoring shall be conducted in accordance with the Sampling Plan approved by the Division.
A.(11.) STRUCTURAL INTEGRITY INSPECTIONS OF ASH POND DAM
The facility shall meet the dam design and dam safety requirements per 15A NCAC 2K.
Page 9 of 27

Permit NC0004961
A.(12.) FISH TISSUE MONITORING NEAR ASH POND DISCHARGE
The facility shall conduct fish tissue monitoring annually and submit the results with the NPDES
permit renewal application. The objective of the monitoring is to evaluate potential uptake of pollutants
by fish tissue near the Ash Pond discharge. The parameters analyzed in fish tissue shall be arsenic,
selenium, and mercury. The monitoring shall be conducted in accordance with the Sampling Plan
approved by the Division.
A.(13.) INSTREAM MONITORING
The facility shall conduct semiannual instream monitoring (one upstream and one downstream of the
ash pond discharge) for arsenic, selenium, mercury (method 1631E), chromium, lead, cadmium,
copper, zinc, total hardness, and total dissolved solids (TDS). Instream monitoring should be
conducted at the stations that have already been established through the BIP monitoring program: B
(upstream of the Outfall 002) and C (downstream of the Outfall 002). The monitoring results shall be
submitted with the NPDES permit renewal application.
A.(14.) ASH POND CLOSURE
The facility shall prepare an Ash Pond Closure Plan in anticipation of the facility closure. This Plan
shall be submitted to the Division one month prior to the decommissioning of the ponds.
A.(15.) PRIORITY POLLUTANT ANALYSIS
The Permittee shall conduct a priority pollutant analysis (in accordance with 40 CFR Part 136) once
per permit cycle at outfall 002 and submit the results with the application for permit renewal.
A.(16.) SEEP POLLUTANT ANALYSIS
The facility identified 12 unpermitted seeps (all non -engineered) from the ash settling basin, of which
10 of the seeps have been classified as "jurisdictional waters" by the United States Army Corps of
Engineers.
Jurisdictional Water Seeps.
For the jurisdictional water seeps, the facility shall determine within 90 days from the effective date
of the permit if a seep meets the state water quality standards established in 15A NCAC 2B .0200
and submit the results of this determination to the Division. If the standards are not contravened,
the facility shall conduct monitoring for the parameters specified in A. (2 1.), A. (22.), A. (23.), A. (24.),
A. (25.), A. (26.), A. (27.), A. (28.), A. (29.), A. (30.), A. (31.), and A. (32.).
If any of the water quality standards are exceeded (with the exception of the Action Level standards),
the facility shall be considered in violation of the Clean Water Act until one of the options below is
fully implemented. The facility shall:
1) Submit a complete application for 404 Permit (within 30 days after determining that a water
quality standards exceeded) to pump the seep discharge to one of the existing outfalls, install
a pipe to discharge the seep to the Catawba River, or install an in-situ treatment system.
After the 404 Permit is obtained, the facility shall complete the installation of the pump, pipe,
or treatment system within 180 days from the date of the 404 permit receipt and begin
pumping/ discharging or treatment.
2) Demonstrate through modeling that the decanting and dewatering of the ash basin will result
in the elimination of the seep and submit the modeling results to the Division within 120 days
from the effective date of the permit. Within 180 days from the completion of the dewatering
the facility shall confirm that the seep flow ceased. If the seep flow continues, the facility
shall choose one of the other options in this Special Condition.
3) Demonstrate that the seep is discharging through the designated "Effluent Channel" and the
water quality standards in the receiving stream are not contravened. This demonstration
should be submitted to the Division no later than 180 days from the effective date of the
permit. The "Effluent Channel" designation should be established by the DEQ Regional Office
personnel prior to the issuance of the permit and appropriate 404 permit shall be obtained.
Page 10 of 27

Permit NC0004961
All effluent limits, including water quality -based effluent limits, remain applicable notwithstanding
any action by the Permittee to address the violation through one of the identified options, so that any
discharge in exceedance of an applicable effluent limit is a violation of the Permit as long as the seep
remains flowing.
If jurisdictional water seeps contravene Action Level Standard, the facility shall conduct a Whole
Effluent Toxicity Test (WET test). If the WET result passes, the facility shall be considered in
compliance with the state water quality standards. If the WET test fails and the Toxicity Identification
Evaluation determines that the parameter contravening the water quality standard is responsible for
the failure the facility shall be considered in violation and, shall implement one of the 3 options
identified above.
Non -Jurisdictional Water Seeps
For the non jurisdictional water seeps the facility shall demonstrate that they will not violate water
quality standards in the receiving stream or that the seep does not discharge to jurisdictional waters
or that the seep does not carry pollutants indicating ash characteristics and submit this
demonstration to the Division within 90 days from the effective date of the permit. If such
demonstration is not possible or not approved by the Division, the facility shall choose one of the 3
options identified above.
New Identified Seeps
If new seeps are identified, the facility shall follow the procedures outlined above for either
jurisdictional waters or non jurisdictional waters. The deadlines for new seeps shall be calculated
from the date of the seep discovery.
Table 1. List of Identified Seeps
The permittee has identified 12 potentially contaminated seeps in the areas adjacent to the Mountain
Island Lake. The locations of the seeps are identified on the map attached to the permit.
Seep Coordinates and Assigned Outfall Numbers
Seep ID
Latitude
Longitude
Outfall number
S-1
35.365
-80.967
101
S-2
35.365
-80.966
102
S-3
36.369
-80.965
103
S-4
35.371
-80.963
104
S-5*
35.370
-80.963
105
S-6
35.367
-80.958
106
S-7
35.367
-80.957
107
S-8*
35.365
-80.956
108
S-9
35.371
-80.963
109
S-10
35.369
-80.960
110
S-11
35.369
-80.960
111
S-12
35.368
-80.959
112
*Non jurisdictional seeps
A. (17.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
(State Enforceable Only) [G.S. 143-215.1(b)]
Proposed federal regulations require electronic submittal of all discharge monitoring reports (DMRs)
and specify that, if a state does not establish a system to receive such submittals, then permittees
must submit DMRs electronically to the Environmental Protection Agency (EPA). The Division
anticipates that these regulations will be adopted and is beginning implementation in late 2013.
Page 11 of 27

Permit NC0004961
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting [Supersedes Section D. 12.1 and Section E. 15.1_[a11
Beginning no later than 270 days from the effective date of this permit, the permittee shall begin
reporting discharge monitoring data electronically using the NC DWR's Electronic Discharge
Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month
and submitted electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. Until such time that the
state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation
(CROMERR), permittees will be required to submit all discharge monitoring 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 computer printed eDMR to the
following address:
NC DENR / DWR / Information Processing Unit
ATTENTION: Central Files / eDMR
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
If a permittee is unable to use the eDMR 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 to the mailing address above.
Requests for temporary waivers from the NPDES electronic reporting requirements 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 using eDMR. Temporary waivers shall
be valid for twelve (12) months and shall thereupon expire. At such time, DMRs shall be
submitted electronically to the Division unless the permittee re -applies for and is granted a new
temporary waiver by the Division.
Information on eDMR and application for a temporary waiver from the NPDES electronic
reporting requirements is found on the following web page:
http: / /portal. ncdenr. org /web/ wg / admin / bog / ipu / edmr
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.
Page 12 of 27

Permit NC0004961
2. Signatory Requirements [Supplements Section B. ( 11.) Ib) and supersedes Section B. i 11.)
All eDMRs submitted to the permit issuing authority shall be signed by a person described in
Part II, Section B. (11.)(a) or by a duly authorized representative of that person as described in
Part II, Section B. (11.)(b). A person, and not a position, must be delegated signatory authority
for eDMR reporting purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user
account and login credentials to access the eDMR system. For more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit
the following web page:
htt-p://portal.ncdenr.org/web/M/admin/bog/­ipu/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall
make the following certification [40 CFR 122.221. NO OTHER STATEMENTS OF CERTIFICATION
WILL BE ACCEPTED:
"I certify, under penalty of law, 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 manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations. "
3. Records Retention jSupplements Section D. (6.)]
The permittee shall retain records 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].
A. (18.) APPLICABLE STATE LAW (State Enforceable Only)
This facility shall meet the requirements of Senate Bill 729 (Coal Ash Management Act). This permit
may be reopened to include new requirements imposed by Senate Bill 729.
A. (19.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
011) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 011 - Former Stormwater Outfall 1. Such
discharges shall be limited and monitored3 by the Permittee as specified below:
Page 13 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Fre uenc
Flow, MGD
Monthly
Pump logs or
estimate
Influent or Effluent
Total Suspended Solids
23.0 m /L 75.0 m /L
Monthly
Grab
Effluent
Oil and Grease
11.0 m /L 15.0 m /L
Annually
Grab
Effluent
Total Arsenic, /L
Quarterly
Grab
Effluent
Total Selenium, /L
Quarter)
Grab
Effluent
Total Mercu 4, n /L
Quarterly
Grab
Effluent
Nitrate/nitrate as N, m /L
Quarterly
Grab
Effluent
Total Phosphorus, m IL
Semi-annually
Grab
Effluent
Total Nitrogen (NO2 + NO3 + TKN),
m /L
Semi-annually
Grab
Effluent
H1
Monthly
Grab
Effluent
Turbid' 2, NTU
Monthly
Grab
Effluent
Notes:
1. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
2. The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50
NTU. If the instream turbidity exceeds 50 NTU due to natural background conditions, the
discharge cannot cause turbidity to increase in the receiving stream.
NTU - Nephelometric Turbidity Unit.
3. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See
Special Condition A. (18.).
4. The facility shall use EPA method 1631E.
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (20.) ADDITIONAL CONDITIONS AND DEFINITIONS
1. EPA methods 200.7 or 200.8 (or the most current versions) shall be used for analyses of all
metals except for total mercury.
2. All effluent samples for all external outfalls shall be taken at the most accessible location after
the final treatment but prior to discharge to waters of the U.S. (40 CFR 122.416)).
3. The term low volume waste sources means wastewater from all sources except those for which
specific limitations are otherwise established in this part (40 CFR 423.11 (b)).
4. The term chemical metal cleaning waste means any wastewater resulting from cleaning any
metal process equipment with chemical compounds, including, but not limited to, boiler tube
cleaning (40 CFR 423.11 (c)).
5. The term metal cleaning waste means any wastewater resulting from cleaning [with or
without chemical cleaning compounds] any metal process equipment including, but not
limited to, boiler tube cleaning, boiler fireside cleaning, and air preheater cleaning (40 CFR
423.11 (d)).
6. For all outfalls where the flow measurement is to be "estimated" the estimate can be done by
using calibrated V -notch weir, stop -watch and graduated cylinder, or other method approved
by the Division.
A. (21.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
10 1) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 101 — Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified below:
Page 14 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Frequen 2
Flow, MGD
Monthly/Quartedy
Estimate
Effluent
H3
Monthl /Ou rterly
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
Month ly/Quarterly
Grab
Effluent
Total Mercu 4, n /L
Monthly/Qu rterl
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Monthly/Quarterly
Grab
Effluent
Total Iron, m /L
Month) /Q arterly
Grab
Effluent
Total Manganese, /L
Monthly uarterly
Grab
Effluent
Total Zinc, /L
Monthl/Quarterly
Grab
Effluent
Total Arsenic
10.0 /L
50.0 /L
Monthly/Quartedy
Grab
Effluent
Total Cadmium
2.0 /L
15.0 /L
Monthly/Quartedy Monthly/Quarterly
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 /L
Monthly/Quartedy Monthly/Quarterly
Grab
Effluent
Total Copper, /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Lead, /L
25.0 /L
33.8 p /L
Monthly/Quartedy Monthly/Quarterly
Grab
Effluent
Total Nickel
25.0 /L
25.0 p91L
Monthly/Quarte
Grab
Effluent
Total Selenium
5.0 /L
56.0 /L
Monthly/Quartedy Monthly/Quarterly
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m /L
Monthly/Quartedy Monthly/Quarterly
Grab
Effluent
Sulfates
250.0 m /L
250.0 m /L
Month l/Quarterly
Grab
Effluent
Chlorides
250.0 m IL
250.0 m /L
Month l/Quarterly
Grab
Effluent
TDS
500.0 m /L
500.0 m /L
Monthly/Qu rterl
Grab
Effluent
Total Hardness, m /L
100.0 m2/L_
100.0 m /L
Monthly/Quarterly
Grab
Effluent
TSS
30.0 m /L
100.0 m /L
Month l /Quarterl
Grab
Effluent
Oil and Grease
15.0 m /L
20.0 m /L
Month I/Quarterly
Grab
Effluent
Temperature, OC
Monthl /Q arterly
Grab
Effluent
Specific Conductance, mho/cm
Monthly/Quartedy Monthly/Quarterly
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the i0no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.41 (j).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (22.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
102) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 102 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specked below:
Page 15 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Fre uen s
Flow, MGD
Month) /Quarter)
Estimate
Effluent
H3
Monthly/Qu rterl
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
MonthlylQuarterL
Grab
Effluent
Total Mercu 4, n /L
Monthly/Qu fter
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Iron, m /L
Monthly/Quartedy
Grab
Effluent
Total Manganese, /L
Month) /Q arterly
Grab
Effluent
Total Zinc, /L
Month ly/Quartedy
Grab
Effluent
Total Arsenic
10.0 /L
50.0 /L
Mo±/Quarterly
Grab
Effluent
Total Cadmium
2.0 /L
15.0 /L
Month) /Qu arterly
Grab
Effluent
Total Chromium50.0
/L
1,022.0 1L
Monthly/Quarterly
Grab
Effluent
Total Copper, /L
Month /Q arterly
Grab
Effluent
Total Lead, /L
25.0 /L
33.8 /L
Month ly/Quarterly
Grab
Effluent
Total Nickel
25.0 /L
25.0 /L
Monthly/Quartedy
Grab
Effluent
Total Selenium
5.0 /L
56.0 N /L
Month) /Qu artedy
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m /L
Month ly/Quartedy
Grab
Effluent
Sulfates
250.0 m /L
250.0 m /L
Monthly/QuarterL
Grab
Effluent
Chlorides
250.0 m /L
250.0 m /L
Monthly/QuarterL
Grab
Effluent
TDS
500.0 m /L
500.0 m /L
Monthly/Quarterly
Grab
Effluent
Total Hardness, m /L
100.0 m /L
100.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
TSS, m /L
30.0 m L
100.0 m /L
Monthly/QuafterL
Grab
Effluent
Oil and Grease
15.0 m /L
20.0 m /L
Monthly/Quaftedy
Grab
Effluent
Tem erature, OC
Monthly/Qu rterl
Grab
Effluent
Specific Conductance, pmholcm
Monthly/Quarterly
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.410).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (23.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
103) [15A NCAC 0213 .0400 et seq., 02B.0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 103 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified below:
Page 16 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
FrequenCy2
Flow, MGD
Month l /Quarter
Estimate
Effluent
H3
Month l/Quarterly
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
Month /Quarterly
Grab
Effluent
Total Mercu 4, n /L
Monthly/Qu rted
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Monthly/Quarterly
Grab
Effluent
Total Iron, m /L
Monthly/Quartedy Monthly/Quarterly
Grab
Effluent
Total Manganese, p /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Zinc, /L
Monthly/Qu rterl
Grab
Effluent
Total Arsenic
10.0 /L
50.0 p /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Cadmium
2.0 /L
15.0 p /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 /L
Monthly/QuarterlyGrab
Effluent
Total Copper, _ /L
Monthly/Qu fterl
Grab
Effluent
Total Lead, /L
25.Op
Month l /Quarter)
Grab
Effluent
Total Nickel
25.0 /L
25.0 /L
Month l/Quarterly
Grab
Effluent
Total Selenium
5.0 /L
56.0 /L
Month l /Quarter)
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m /L
Month l /Quarter)
Grab
Effluent
Sulfates
250.0 m /L
250.0 m /L
Month l /Quarter)
Grab
-
Effluent
Chlorides
250.0 m /L
250.0 m /L
Month l /Quarter)
Grab
Effluent
TDS
500.0 m /L
500.0 m /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent _
Total Hardness, m /L
100.0 m /L
100.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
TSS, m /L
30.0 m /L
100.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Oil and Grease
15.0 mg/L
20.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Temperature, OC
Monthly/Qu rterl
Grab
Effluent
Specific Conductance, pmho/cm
Monthly/ uarterl
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.410).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (24.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
104) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 104 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified below:
Page 17 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Avera a Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Frequency2
Flow, MGD
Monthly/Quartert
Estimate
Effluent
H3
Monft/Quarterly
Grab
Effluent
Fluoride
1.8 m2/1-
1.8 m /L
Month IQuarterl
Grab
Effluent
Total Mercu 4, n /L
Month /Quarterly
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Month l/Quarterly
Grab
Effluent
Total Iron, m /L
Monthly/Quarter)
Grab
Effluent
Total Manganese, !L
Monthly/Ouartedy Monthly/Quarter)
Grab
Effluent
Total Zinc, /L
Monthly/Quartedy
Grab
Effluent
Total Arsenic
10.0 /L
50.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Cadmium
2.0 /L
15.0 /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 /L
Monthly/Quartedy
Grab
Effluent
Total Copper, /L
Monthly/Qu fterl
Grab
Effluent
Total Lead, /L
25.0 /L
33.8 /L
Monthly/Quaftedy
Grab
Effluent
Total Nickel
25.0 IL
25.0 /L
Monthl dedy
Grab
Effluent
Total Selenium
5.0 /L
56.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m /L
Monthly/Quartedy Monthly/Quarterly
Grab
Effluent
Sulfates
250.0 m /L
250.0 m IL
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Chlorides
250.0 m /L
250.0 m 1L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
TDS
500.0 m /L
500.0 m /L
Monthly/Quaderly
Grab
Effluent
Total Hardness, m /L
100.0 m /L
100.0 m /L
Monthl IQuarterl
Grab
Effluent
TSS, m /L
30.0 m2/L_
100.0 m /L
Monthl IQuarterl
Grab
Effluent
Oil and Grease
15.0 m /L
20.0 m /L
Month l/Quarterly
Grab
Effluent
Temperature, OC
Month l/Quarterly
Grab
Effluent
Specific Conductance, mho/cm
I
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.410).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (25.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
105) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 105 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified below:
Page 18 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
FrequenCy2
Flow, MGD
Month ly/Quartedy
Estimate
Effluent
H3
Month l /Quarte
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Mercu 4, n /L
Monthly/Qu rterl
Grab
Effluent
Total Barium
1.0 /L
1.0 m /L
Month l /Quarter)
Grab
Effluent
Total Iron, m /L
Monthly/Quarter)
Grab
Effluent
Total Manganese, /L
Monthl /Q arterly
Grab
Effluent
Total Zinc, /L
Monthly/Qu rted
Grab
Effluent
Total Arsenic
10.0 /L
50.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Cadmium
2.0 /L
15.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Copper, /L
Monthly/Qu rted
Grab
Effluent
Total Lead, /L
25.0 /L
33.8 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Nickel
25.0 /L
25.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Selenium
5.0 /L
56.0 /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Sulfates
250.0 m /L
250.0 m /L
Monthly/QuarterL Monthly/Quarter
Grab
Effluent
Chlorides
250.0 m /L
250.0 m /L
Monthly/QuarterL Monthly/Quarter
Grab
Effluent
TDS
500.0 m /L
500.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Hardness, m /L
100.0 m /L
100.0 m /L
MonthlylQuarterly
Grab
Effluent
TSS, m /L
30.0 m /L
100.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Oil and Grease
15.0 m /L
20.0 m /L
Monthly/Quaftedy Monthly/Quarter)
Grab
Effluent
Temperature, OC
Monthly/Qu rterl
Grab
Effluent
Specific Conductance, pmho/cm
Month l /Quarter)
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.410).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (26.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
106) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 106 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified below:
Page 19 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Frequen 2
Flow, MGD
Monthly/Quarterly Monthly/Quarterly
Estimate
Effluent
H3
Monthly/Qu rte
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
Month l /Quarte
Grab
Effluent
Total Mercu 4, n /L
Monthly/Qu rterl
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Monthly/Quartedy
Grab
Effluent
Total Iron, m /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Total Manganese, N /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Zinc, /L
Monthly/Quarterly
Grab
Effluent
Total Arsenic
10.0 /L
50.0 1L
Monthly/QuarterL
Grab
Effluent
Total Cadmium
2.0 /L
15.0 /L
Month l/Quarterly
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 /L
Monthl /Quarterl
Grab
Effluent
Total Copper, /L
Monthl /Q arterly
Grab
Effluent
Total Lead, /L
25.0 /L
33.8 /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Total Nickel
25.0 /L
25.0 /L
Monthly/Quaderly Monthly/Quarterly
Grab
Effluent
Total Selenium
5.0 /L
56.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m /L
Monthl LQuaderly
Grab
Effluent
Sulfates
250.0 m /L
250.0 m /L
Monthly/Quartefly Monthly/Quarter)
Grab
Effluent
Chlorides
250.0 m L
250.0 m R
Monthly/Quartefly Monthly/Quarter)
Grab
Effluent
TDS
500.0 m /L
500.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Hardness, m /L
100.0 m /L
100.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
TSS, m /L
30.0 m /L
100.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Oil and Grease
15.0 m /L
20.0 m /L
Monthly/Quafterly Monthly/Quarterly
Grab
Effluent
Temperature, °C
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Specific Conductance, mho/cm
Monthly/Quartedy
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.) .
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.41 (j).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (27.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
107) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 107 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified below:
Page 20 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average I Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Frequenc 2
Flow, MGD
Monthly/Quartedy
Estimate
Effluent
H3
MonthlyjQuartedy
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
Monthly/Quarter)y
Grab
Effluent
Total Mercu 4, n /L
Monthly/Qu rterl
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Month ly/Quarterly
Grab
Effluent
Total Iron, m /L
Monthly/Qu rterl
Grab
Effluent
Total Manganese, Ng/L
Month/ /Q arterly
Grab
Effluent
Total Zinc, /L
Monthly/Qu rterl
Grab
Effluent
Total Arsenic
10.0 /L
50.0 /L
Month ly/Quarterly
Grab
Effluent
Total Cadmium
2.0 /L
15.0 /L
Month l /Quarter)
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 /L
Monthly/Quartedy Monthly/Quarter/y
Grab
Effluent
Total Copper, /L
Monthly/Qu rterl
Grab
Effluent
Total Lead, U91L
25.0 /L
33.8 /L
Month l /Quarter/
Grab
Effluent
Total Nickel
25.0 pRIL
25.0 /L
Month l /Quarter)
Grab
Effluent
Total Selenium
5.0 /L
56.0 /L
Month l /Quarter/
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 /L
Month l /Quarter/
Grab
Effluent
Sulfates
250.0 m /L
250.0 m /L
Month l /Quarter/
Grab
Effluent
Chlorides
250.0 m /L
250.0 m /L
Month l/Quarte
Grab
Effluent
TDS
500.0 m IL
500.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Hardness, m /L
100.0 m /L
100.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
TSS, m /L
30.0 m /L
100.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Oil and Grease
15.0 m /L
20.0 m !L
Monthly/QuarterlyMonthly/Quarterly
Grab
Effluent
Temperature, OC
arterly
Grab
Effluent
Specific Conductance, pmho/cm
Monthly/Quartedy Monthly/Quarter/y
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low now conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.41 U).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (28.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
108) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 108 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified below:
Page 21 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Frequen z
Flow, MGD
Month ly/Quarterly
Estimate
Effluent
H3
Monthly/Qu rterl
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Mercu 4, n /L
Monthly/Qu rted
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Month l /Quarterl
Grab
Effluent
Total Iron, m /L
Monthly/Qu rterl
Grab
Effluent
Total Manganese, /L
Monthl /Q arterly
Grab
Effluent
Total Zinc, /L
Monthly/Qu rterl
Grab
Effluent
Total Arsenic
10.0 /L
50.0 /L
Monthly/Quartedy Monthly/Quarters
Grab
Effluent
Total Cadmium
2.0 /L
15.0 /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Total Copper, JL
Monthly/Qu rterl
Grab
Effluent
Total Lead, /L
25.0 /L
33.8 /L
Monthly/Quartedy
Grab
Effluent
Total Nickel
25.0 /L
25.0 /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Total Selenium
5.0 /L
56.0 /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m /L
Month l /Quarteri
Grab
Effluent
Sulfates
250.0 m /L
250.0 m /L
Month l /Quarteri
Grab
Effluent
Chlorides
250.0 m /L
250.0 m /L
Month l /Quarter)
Grab
Effluent
TDS
500.0 m /L
500.0 m /L
Monthly/Quartedy
Grab
Effluent
Total Hardness, m /L
100.0 m /L
100.0 m /L
Monthly/Quarterly
Grab
Effluent
TSS, m /L
30.0 m /L
100.0 m /L
Monthly/Quarterly
Grab
Effluent
Oil and Grease
15.0 m2/1-
20.0 m /L
Monthly/Quarterly
Grab
Effluent
Temperature, OC
Monthly/Qu rterl
Grab
Effluent
Specific Conductance, mho/cm
Month l /Quarter
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.) .
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.41 (j).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (29.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
109) [15A NCAC 02B.0400 et seq., 02B.0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 109 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified beloW7
Page 22 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
FrequenCy2
Flow, MGD
MonthIly/Quarterly
Estimate
Effluent
pH3
Monthly/Quarterly
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Total Mercury4, n /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Iron, m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Manganese, /L
Monthl /Q arterly
Grab
Effluent
Total Zinc, /L
Monthl /Q arterly
Grab
Effluent
Total Arsenic
10.0 /L
50.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Cadmium
2.0 IL
15.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 pg1L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Copper, /L
Monthl /Q arterly
Grab
Effluent
Total Lead, /L
25.0 /L
33.8 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Nickel
25.0 /L
25.0 /L
Monthly/Quafterly Monthly/Quarterly
Grab
Effluent
Total Selenium
5.0 /L
56.0 /L
Month l /Quarter
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m /L
Month l /Quarter
Grab
Effluent
Sulfates
250.0 m /L
250.0 m /L
Month l /Quarter)
Grab
Effluent
Chlorides _
250.0 m /L
250.0 m /L
Monthly/Qu rter
Grab
Effluent
TDS
500.0 m /L
500.0 m /L
Month l /Quarter)
Grab
Effluent
Total Hardness, m /L
100.0 m /L
100.0 m 1L
Month l /Quarter)
Grab
Effluent
TSS, m /L
30.0 m /L
100.0 m 1L
Month l /Quarterl
Grab
Effluent
Oil and Grease
15.0 m /L
20.0 m /L
Month l /Quarter)
Grab
Effluent
Temperature, OC
Monthly/Quarter)
Grab
Effluent
Specific Conductance, mho/cm
Month l /Quarterly
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.) .
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.41 (j).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (30.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
110) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 110 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified below:
Page 23 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Fre uenc z
Flow, MGD
Monthly/Quarterly
Estimate
Effluent
H3
Monthrterly
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Mercu 4, n /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Monthly/Quarterly
Grab
Effluent
Total Iron, m /L
Month l /Quarter)
Grab
Effluent
Total Manganese,_ /L
Month l /Quarter)
Grab
Effluent
Total Zinc, /L
Monthly/Qu rterl
Grab
Effluent
Total Arsenic
10.0 /L
50.0 /L
Month l/Quarterly
Grab
Effluent
Total Cadmium
2.0 p91L
15.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 1L
Month l/Quarterly
Grab
Effluent
Total Copper, /L
Month /Q arterly
Grab
Effluent
Total Lead, /L
25.0 /L
33.8 /L
Monft/Quarterly Month/Quarterly
Grab
Effluent
Total Nickel
25.0 /L
25.0 /L
Month l/Quarterly
Grab
Effluent
Total Selenium
5.0 /L
56.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m /L
Monthly/Quartedy Monthly/Quarterly
Grab
Effluent
Sulfates
250.0 m IL
250.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Chlorides
250.0 m 1L
250.0 m 1L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
TDS
500.0 m /L
500.0 m 1L
Monthly/Qu rterl
Grab
Effluent
Total Hardness, m /L
100.0 m /L
100.0 m 1L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
TSS, m /L
30.0 mg/L,_
100.0_ m /L
Monthly/QuarterlyMonthly/Quarterly
Grab
Effluent
Oil and Grease
15.0 m /L
20.0 m 1L
Monthly/QuarterlyMonthly/Quarterly
Grab
Effluent
Temperature, OC
Monthl /Q arterly
Grab
Effluent
Specific Conductance, ;mho/cm
Monthly/Qu rterl
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this'permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.41 (j).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (31.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
111) [ 15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 111 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified below:
Page 24 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Frequen s
Flow, MGD
Monthly/Quartedy
Estimate
Effluent
H3
Monthly/Quarterly
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
Monthly/Quartedy
Grab
Effluent
Total Merw 4, n /L
Monthly/Quartedy
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Month /Q arterly
Grab
Effluent
Total Iron, m /L
MonthlylQuarterly
Grab
Effluent
Total Manganese, /L
Monthly/Quarterly
Grab
Effluent
Total Zinc, /L
Monthly/Quartedy
Grab
Effluent
Total Arsenic
10.0 1L
50.0 /L
Monthl/Quarterly
Grab
Effluent
Total Cadmium
2.0 /L
15.0 /L
Month) /Quarterl
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 /L
Monthl/Quarterly
Grab
Effluent
Total Copper, /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Lead, p /L
25.0 /L
33.8 /L
Monthl/Quarterly
Grab
Effluent
Total Nickel
25.0 /L
25.0 /L
Monthl/Quarterly
Grab
Effluent
Total Selenium
5.0 /L
56.0 /L
Monthly/Qu rterl
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m 1L
Monthl/Quarterly
Grab
Effluent
Sulfates
250.0 m /L
250.0 m /L
Monthly/Quartedy Monthly/Quarterly
Grab
Effluent
Chlorides
250.0 m /L
250.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
TDS
500.0 m /L
500.0 m /L
Monthly/Qu rterl
Grab
Effluent
Total Hardness, m /L
100.0 m /L
100.0 m /L
Month) /Quarterl
Grab
Effluent
TSS, m /L
30.0 m /L
100.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Oil and Grease
15.0 m /L
20.0 m /L
MonthlyLquartedy Monthly/Quarterly
Grab
Effluent
Temperature, OC
Monthly/Quartedy Monthly/Quarterly
Grab i
Effluent
Specific Conductance, mho/cm
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.410).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
A. (32.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall
112) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from outfall 112 - Seep Discharge. Such discharges shall be
limited and monitored' by the Permittee as specified below:
Page 25 of 27

Permit NC0004961
EFFLUENT
CHARACTERISTICS
LIMITS
Monthly Daily
Average Maximum
MONITORING REQUIREMENTS
Measurement Sample Type Sample Location
Fre uen 2
Flow, MGD
Monthly/Quarterly Monthly/Quarterly
Estimate
Effluent
H3
Monthly/Qu rterl
Grab
Effluent
Fluoride
1.8 m /L
1.8 m /L
Month l /Quarter)
Grab
Effluent
Total Mercu 4, n /L
Monthly/Qu rterl
Grab
Effluent
Total Barium
1.0 m /L
1.0 m /L
Month l /Quarter)
Grab
Effluent
Total Iron, m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Manganese, /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Zinc, /L
Month l /Quarter)
Grab
Effluent
Total Arsenic
10.0 /L
50.0 /L
Month l /Quarter)
Grab
Effluent
Total Cadmium
2.0 /L
15.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Chromium
50.0 /L
1,022.0 /L
Monthl /Quarterly
Grab
Effluent
Total Copper, /L
Monthl /Q arterly
Grab
Effluent
Total Lead, /L
25.0 /L
33.8 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Nickel
25.0 /L
25.0 /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Selenium
5.0 IL
56.0 /L
Monthly/Quartedy
Grab
Effluent
Nitrate as N
10.0 m /L
10.0 m /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Sulfates
250.0 m /L
250.0 m /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Chlorides
250.0 m /L
250.0 m /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
TDS
500.0 m /L
500.0 m IL
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Total Hardness, m /L
100.0 m /L
100.0 m /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
TSS, m /L
30.0 m /L
100.0 m /L
Monthly/Quarterly Monthly/Quarterly
Grab
Effluent
Oil and Grease
15.0 m /L
20.0 m /L
Monthly/Quartedy Monthly/Quarter)
Grab
Effluent
Temperature, OC
Monthl /Q arterly
Grab
Effluent
Specific Conductance, jjrnho/cm
Monthly/Qu fterl
Grab
Effluent
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application system. See Special
Condition A. (18.).
2. The facility shall conduct monthly sampling from the effective date of the permit. After one year
from the effective date of the permit the monitoring will be reduced to quarterly
3. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4. The facility shall use EPA method 1631E.
If the facility is unable to obtain a seep sample due to the dry or low flow conditions
preventing the facility from obtaining a representative sample, the "no flow" should be
reported on the DMR. This requirement is established in the Section D of the Standard
Conditions and 40 CFR 122.41 (j).
There shall be no discharge of floating solids or visible foam in other than trace
amounts.
Appendix A
Plan for Identification of New Discharges (attached).
Page 26 of 27

Permit NC0004961
Page 27 of 27