NC0004308_PERMIT ISSUANCE_20080222

NPDES DOCYNENT SCANNING COVER SHEET
NPDES Permit:
NC0004308
ALCOA — Badin Works
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Correspondence
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
February 22, 2008
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February 22, 2008
Mr. Mark J. Gross
Alcoa, Inc. - Badin Works
P.O. Box 576
Badin, North Carolina 28009-0576
Subject:
Dear Mr. Gross:
Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
NPDES Permit Issuance
Permit No. NCO004308
Alcoa - Badin Works
Stanly County
Coleen W. Sullins, Director
Division of Water Quality
The Division of -Water Quality is forwarding herewith the NPDES permit for Alcoa's Badin Works,
modified as stipulated in the Settlement Agreement executed today (06 EHR 1883). 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 U.S. Environmental Protection
Agency dated May 9,1994, as amended.
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
Quality. 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 Quality, the Division of Land Resources, the Coastal Area Management Act, or
any other federal or local governmental permit.
If you have any questions concerning the final permit, please contact Mike Templeton at (919) 733-
5083, extension 541, or at [e-mail].
Sincerely,
-Coleen H. Sullins
Enclosure: NPDES Permit NCO004308 — Final (Settlement)
Copies (w/ encl.): Mr. Z. T. (Tommy) Gibson, Jr.- Alcoa - Badin Works
Mr. Larry McCaskill - Alcoa - Badin Works
Chief, NP17ES and Biosolids Permits Section, Region IV, EPA
Mooresville Regional Office, Surface Water Protection
Technical Assistance and Certification Unit
Aquatic Toxicity Unit
Central Files
�NPI)ES Files
Division of Water Quality, point Source Branch Telephone [phone] ore
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 FAX [phone] Np hCarolina
512 N. Salisbury Street, Raleigh, North Carolina 27604 On the Internet at httpy/h2c.enr.state.ncus/ Naturally
An Equal Opportunity/Affirmative Action Employer

•1h
Permit No. NCO004308
•i
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
IW0WS1I�
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended,
Alcoa Inc.
is hereby authorized to discharge wastewater from a facility located at the
Alcoa - Badin Works
NC Hwy. 740 & NCSR 1719
Stanly County
to receiving waters designated as Little Mountain Creek and Badin Lake (Yadkin River) in the Yadkin - Pee
Dee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II,
III, and W of this permit.
This permit shall become effective .................... .....................................................................................March 1, 2008
This permit and the authorization to discharge shall expire at midnight on ........................... February 28, 2013
Signed this day ..................... February 22, 2008
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management
Commission

Permit No. NC0004308
SUPPLEMENT TO PERMIT COVER SHEET
The authorihj to operate acid discharge frohhr this facilihj arises exc isively rrnder the terrtzs and colzditiofrs of this
NPDES Pentrit. Therefore, upon the effective date of this permit, any and all previohts NPDES Perntits issued for
this facility arid bearitrg this penzzit number are revoked.
Alcoa Inc.
is hereby authorized to:
1. Discharge the following:
• non -contact cooling and make-up waters, condensate, fire protection water, groundwater, and
stormwater at Outfall 002/502;
• non -contact cooling and make-up waters, condensate, fire protection water, groundwater, and
stormwater at Outfa11004/$04;
• non -contact cooling water, condensate, fire protection water, groundwater, and stormwater at
Outfall 005/505;
• non -contact cooling water, condensate, fire protection water, groundwater, and stormwater at
Outfall 012/512 (and at Outfall 011/511 when flows exceed the capacity of the diffuser);
• groundwater and stormwater at Outfall 013;
• groundwater seepage from the Old Brick Landfill and-stormwater at Outfall 019/S19; and
• stormwater at OutfalIs 017, 018, and 020;
all outfalIs being located at or near the Alcoa - Badin Works in Stanly County; and
Discharge such process and ancillary process wastewaters, groundwater, and stormwater from locations
specified on the attached map into an unnamed tributary to Little Mountain Creek (OutfaIls 004/SO4,
005/505, 017, and 018) and into Badin Lake (Yadkin River) (OutfalIs'002/S02, 01,1/511, 012/512, 013,
019/519, 020) which are classified as Class "C" waters and Class WS-IV CA & B"'waters, respectively, in
the Yadkin -Pee Dee River Basin.
All discharges shall be in accordance with the attached schedules as follows:
Part I: Monitoring, Controls, and Limitations for Permitted Discharges
A. Effluent Limitations and Monitoring Requirements
B. Stormwater Management
C. Special Conditions
Part II: Standard Conditions for NPDES Permits
Part III: Other Requirements
Part IV: Special Conditions for Municipal Facilities
Any other point source discharge to surface waters of the state is prohibited unless covered by another
permit, authorization, or approval.
This permit does not relieve the Permittee from responsibility for compliance with any other applicable
federal, state, or local law, rule, standard, ordinance, order, judgment, or decree.
M

VICINITY MAP
USGS Quad #: F18NE, F18NW
Badin & New London, NC
N
SCALE
1: 24,000
(1" = 20001
Alcoa, Inc. - Badin Works
NC0004308
Receiving Stream: Badin Lake (Yadkin River) and
UT to Little Mountain Creek
Stream Classification: WS-IV CA & B; and C
River Basin: Yadkin/Pee Dee
Sub -Basin #: 03-07-08
iii

Permit No. NC0004308
PART
MONITORING, CONTROLS, AND -LIMITATIONS FOR PERMITTED DISCHARGES
SECTION A - EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is
authorized to discharge wastewater and stormwater associated with the activities described in its current
NPDES permit application. Such discharges shall be monitored, controlled, and limited as specified below.
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 002/S02
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling and make-up waters, condensate, fire
protection waters, groundwater, and stormwater at Outfall 002/S02 subject to the following effluent
limitations and monitoring requirements:
(a.) Outfall 002. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling and make-up
waters, condensate, fire protection waters, orgroundwater.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample ,,• Sample
Average Average Maximum
Frequency
Type "
Location
Flow
Weekly
Instantaneous
E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month
Composite Z
E
pH
Shall remain within the range of 6.0 to
2/Month
Grab
E
9.0 standard units at all times
Temperature (°C)
2/Month
Grab
E
Total Fluoride
Monthly
Composite z
E
Total Residual Chlorine
Monthly
Grab
E
Acute Toxicity 3
Quarterly
Composite z
E
(b.) Outfall S02. The following effluent limitations and monitoring requirements shall apply during'any
calendar month in which the discharge consists entirely of stormwater.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample Sample
Average Average Maximum
Frequency ° Type Location
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
pH
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab . E
Footnotes, A. (1.) :
1. Sample locations: E - Effluent.
2. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
3. Acute Toxicity (Fathead Minnow) 24 hr. P/F @ 90%; quarterly (January -March, April -June, July -September, and
October -December); see Condition C.(2.), Acute Toxicity Permit Limit.
4. Monitoring should be performed during a representative storm event. See Condition B. (2.), Stormwater
Definitions. Semi-annual means 2/Year, during January -June and July -December.
PART I, Page 1 of 18

Permit No! NC0004308
A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 004/SO4
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling and make-up waters, condensate, fire
protection waters, groundwater, and stormwater at Outfall 004/SO4 subject to the following effluent
limitations and monitoring requirements:
(a.) Outfall 004. The following effluent Iimitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling and make-up
waters, condensate, fire protection waters, or groundwater. -
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample
Sample Type
Average Average Maximum
Frequency
Location'
Flow
Weekly
Instantaneous
E
Total Residual Chlorine Z
17 ug/L
Weekly
Grab
E
Total Suspended Solids
2/Month
Composite 3
E
pH
Shall remain within the range of 6.0 to
2/Month
Grab
E
4.0 standard units at all times
Temperature (°C)
See Footnote 4
2/Month
Grab
E
Total Aluminum
Monthly
Composite a
E
Total Cyanide
Monthly
Composite 3
E
Total Fluoride
Monthly
Composite 3
E
Temperature (°C)
See Footnote 4
Quarterly
Grab
U,D
(b.) Outfall SO4. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stormwater.
PARAMETER
EFFLUENT LIMITATIONS -
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample
5 5ample Type
Average Average Maximum
Frequency Location'
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
pH
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
(c.) The Permittee shall obtain authorization from the Division of Water Quality prior to utilizing any
biocide in the cooling water. THERE SHALL BE NO CHROMIUM, ZINC, OR COPPER ADDED TO
THE COOLING WATER EXCEPT IN THE FORM OF PRE -APPROVED ADDITIVES TO BIOCIDAL
COMPOUNDS. See Condition C.(5.), Biocides.
Footnotes, A.(2.) :
1. Sample locations: E - Effluent, U - Upstream, D - Downstream.
2. The Total Residual Chlorine limit shall become effective on November 1, 2008. The Division may re -open the
final effluent limit based upon the results of a site -specific Method Detection Limit (MDL) study that Alcoa
intends to conduct.
3. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
4. The discharge shall not cause the temperature of the receiving water to exceed 2.8°C above background and in
no case exceed 32°C.
5. Monitoring should be performed during a representative storm event. See Condition B. (2.), Stormwater
Definitions. Semi-annual means 2/Year, during January -June and July -December.
PART 1, Page 2 of 18

Permit No. NCO004308
A.(3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 005/S05
During the period beginning on the effective. date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling water, condensate, fire protection
waters, groundwater, and stormwater at Outfall 005/S05 subject to the following effluent limitations and
monitoring requirements:
(a.) Outfall 005. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling water,
condensate, fire..protection waters, -groundwater, or compressor condensate.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement- Sample
Sample
Average Average Maximum
Frequency
Type
Location
Flow
Weekly
Instantaneous
E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month
Composite Z
E
Temperature (°C)
See Footnote 4
2/Month
Grab
E
pH
Shall remain within the range of 6.0 to
2/Month
Grab
E
9.0 standard units at all times
Total Aluminum
Monthly
Composite Z
E
Total Fluoride
Monthly
Composite 2
E
Total Cyanide
Monthly
Grab
E
Total Residual Chlorine
Monthly
Grab
E
Chronic Toxicity 3
Quarterly
Composite Z
E
(b) Outfall S05. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stormwater.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample Sample
Average Average Maximum
Frequency 5 Type Location'
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
pH
Semi -Annually Grab E
(c.) The Permittee shall obtain authorization from the Division of Water Quality prior to utilizing any
biocide in the cooling water. THERE SHALL BE NO CHROMIUM, ZINC, OR COPPER ADDED TO
THE COOLING WATER EXCEPT IN THE FORM OF PRE -APPROVED ADDITIVES TO BIOCIDAL
COMPOUNDS. See Condition C.(5.), Biocides.
(d.) The Division may re -open this permit: to modify these effluent limitations and monitoring
requirements if monitoring results indicate that the discharge.has a reasonable potential to impact
receiving water quality. 1 -
Footnotes, A.(3.) :
1. Sample locations: E - Effluent.
2. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
3. Chronic Toxicity (Ceriodaphnia) P/ F at 90%; quarterly (January -March, April -June, July -September, and
October -December); see Condition C.(1.) , Chronic Toxicity Permit Limit.
4. The discharge shall not cause the temperature of the receiving water to exceed 2.8°C above background and in
no case exceed 32°C. U,D monitoring for Outfall 004 shall be used to determine temperature changes at 004/005.
5. Monitoring should be performed during a representative storm event. See Condition B. (2.), Stormwater
Definitions. Semi-annual means 2/Year, during January -June and July -December.
PART I, Page 3 of 18

Permit No-. NCO004308
A.(4.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 011/S11
(a.) During the period beginning on the effective date of this permit and lasting until the expiration date of
this permit, the Permittee is authorized to discharge storm flows exceeding the Outfall 012 diffuser
capacity at Outfall Oil subject to the following effluent limitations and monitoring requirements:
PARAMETER
EFFLUENT LIMITATIONS-
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample Sample
Average Average 2 Maximum
Frequency
Type
Location'
Flow
Quarterly
Instantaneous
E
Total Fluoride
Quarterly
Grab
E
Total Cyanide 3.4
46.6 ug/L
Quarterly
Grab
E
Oil & Grease
Quarterly
Grab
E
Total Suspended Solids
Quarterly
Grab
E
pH
Shall remain within the range of 6.0 to
Quarterly
Grab
E
9.0 standard units at all times
Acute Toxicity
See Footnotes 5,6
Annually
Grab
E
(b) Outfall S11. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stormwater exceeding the Outfall 012
diffuser capacity.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample
7 Sample Type
Average Average Maximum
Frequency Location'
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Oil & Grease
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
pH
Semi -Annually. Grab E
Footnotes, A.(4.) :
1. Sample locations: E- Effluent.
2. For the purposes of this permit, a minimum of one sample in a calendar week shall be sufficient to determine a
parameter's "Weekly Average" value.
3. The Total Cyanide limit shall become effective on November 1, 2009.
4. The Permittee shall report on its Discharge Monitoring Reports the actual laboratory results for each effluent
sample tested. However, for the purpose of compliance with this permit, the quantitation limit for Total Cyanide
shall be defined as "10 ug/L, and the Division shall treat each reported value less than 10 ug/L as zero.
5. Monitoring for the annual toxicity test should coincide with that for one of the four quarterly cyanide tests.
6. Acute Toxicity (Fathead Minnow) monitoring, definitive; annual; see Condition C.(4.), Acute Toxicity
Monitoring. If any annual toxicity test demonstrates toxicity ( LC-50 reported less than 100 %), testing shall
increase to quarterly. If five (5) consecutive quarterly tests demonstrate no toxicity (LC-50 > 100%), testing shall
revert to annually. Effluent may be filtered through a 2-4 mm mesh prior to testing.
7. Monitoring for these parameters should be performed during a representative storm event. See Condition B. (2.),
Stormwater Definitions.
PART I, Page 4 of 18

Permit No. NCO004308
A.(5.) EFFLUENT LIMITATIONS AND:MONITORING REQUIREMENTS - Outfall 012/S12
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling water, condensate, fire protection
waters, groundwater, and stormwater at Outfall 012/S12 subject to the following effluent limitations and
monitoring requirements:
(a.) Outfall 012. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling water,
condensate, fire protection waters, orgroundwater.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample
Sample
Average Average Maximum
Frequency
Type
Location'
Flow
Weekly
Instantaneous
E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month
Composite 2
E
Oil & Grease
30.0 mg/L 60.0 mg/L
2/Month
Grab
E
Total Cyanide 3
434.0 ug/L
2/Month
Grab
E
pH
Shall remain within the range of 6.0 to
2/Month
Grab
E
9.0 standard units at all times
Total Aluminum
Monthly
Composite 2
E
Total Fluoride
Monthly
Composite 2
E
Total Residual Chlorine
Monthly
Grab
E
Chronic Toxicity 4
Quarterly
Composite 2
E
(b.) Outfall 512. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stormwater.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample
s Sample Type
Average Average Maximum
Frequency Location'
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Oil & Grease
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
pH
Semi -Annually Grab E
Footnotes, A.(5.) :
1. Sample locations: E - Effluent.
2. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
3. The Permittee shall report on its Discharge Monitoring Reports the actual Iaboratory results for each effluent
sample tested. However, for the purpose of compliance with this permit, the quantitation limit for Total Cyanide
shall be defined as 10 ug/L, and the Division shall treat each reported value less than 10 ug/L as zero.
4. Chronic Toxicity (Ceriodaphnia) P/F at 16%; quarterly (January -March, April -June, July -September, and
October -December); see Condition C.(I.), Chronic Toxicity Permit Limit,
5. Monitoring for these parameters should be performed during a representative storm event. See Condition B. (2.),
Stormwater Definitions.
PART I, Page 5 of 18

Permit No: NC0004308'
A.(6.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - OutfaII 013
(a.) During the period beginning on the effective date of this permit And lasting until the expiration date of
this permit, the Permittee is authorized to discharge groundwater and stomwater at Outfall 013 _
subject to the following effluent Iimitations and monitoring requirements:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement
Sample Type
Sample
Average Averages Maximum
Frequency
Location'
Flow
Weekly
Instantaneous
E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month
Composite 3
E
Total Fluoride 4
1.8 mg/L
2/Month
Composite 3
E
Total Cyanide
2/Month
Grab
E
pH
Shall remain within the range of 6.0 to
2/Month
Grab
E
9.0 standard units at all times
Total Aluminum
Monthly
Composite 3
E
Acute Toxicity
See Footnote 5
Quarterly
Composite 3
E
(b.) The Division may re -open this permit to modify these effluent limitations and monitoring
requirements if monitoring results indicate that the discharge has a reasonable potential to impact
receiving water quality or that this discharge consists of uncontaminated stormwater.
Footnotes, A.(6.) :
1. Sample locations: E - Effluent.
2. For the purposes of this permit, a minimum of one sample in a calendar week shall be sufficient to determine a
parameter's "Weekly Average" value.
3. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
4. The Total Fluoride limits shall become effective on November 1, 2009.
5. Acute Toxicity (Fathead Minnow) 24 hr. P/F Q 90%; quarterly (January -March, April -June, July -September, and
October -December); see Condition C.(2.), Acute Toxicity Permit Limit.
PART 1, Page 6 of 18

Permit No. NCO004308
A.(7.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 019/S19
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge groundwater seepage frorn the Old Brick Landfill and
stormwa ter at Outfall 019/S19 subject to the following effluent limitations and monitoring requirements:
(a.) Outfall 019. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of groundwater seepage from the Old
Brick Landfill.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement
Sample Type
Sample
Average Average Maximum
Frequency
Location'
Flow
Quarterly
Instantaneous
E
Total Suspended Solids
Quarterly
Grab
E
Total Aluminum
Quarterly
Grab
E
Total Fluoride
Quarterly
Grab
E
Total Cyanide
Quarterly
Grab
E
pH
Shall remain within the range of 6.0 to
Quarterly
Grab
E
9.0 standard units at all times
Acute Toxicity
I Quarterly
Grab
E
(b) Outfall 519. The following effluent Iimitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stormwater. The Division may re -open this
permit to modify these effluent limitations and monitoring requirements if monitoring results indicate
that the discharge has a reasonable potential to impact receiving water quality.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample
Sample Type
Average Average Maximum
Frequency a Location'
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
pH
Semi -Annually Grab E
Footnotes, A.(7.) :
1. Sample locations: E - Effluent.
2. Acute Toxicity (Fathead Minnow) monitoring, definitive; quarterly (January -March, April -June, July -September,
and October -December); see Condition C.(3.), Acute Toxicity Monitoring.
3. Monitoring for these parameters should be performed during a representative storm event. See Condition B. (2.),
Stormwater Definitions.
PART I, Page 7 of 18 /�

Permit No: NC0004308
A.(8.) STORMWATER MONITORING REQUIREMENTS - Outfalls 017, 018, & 020
(a.) During the period beginning on the effective date of this permit and Iasting until the expiration date of
this permit, the Permittee is authorized to discharge stormwater at Outfalls 017, 018, and 020 subject
to the following effluent limitations and monitoring requirements:
(i.) Analytical Monitoring:
STORMWATER DISCHARGE
UNITS
CUT-OFF
MONITORING REQUIREMENTS
Measurement
Sample
Sample
CHARACTERISTICS
CONCENTRATION
Frequency
Type
Location 2
Total Flow
MG
N/A
Annual
Footnote 3
SDO
Total Rainfall
inches
N/A
Annual
Footnote 3
N/A
Event Duration
minutes
N/A
Annual
Footnote 3
N/A
Total Suspended Solids
mg/L
N/A
Annual
Grab
SDO
COD
mg/L
N/A
Annual
Grab
SDO
Total Aluminum
mg/L
N/A
Annual
Grab
SDO
Total Cyanide
mg/L
N/A
Annual
Grab
SDO
Total Fluoride
mg/L
N/A
Annual
Grab
SDO
(ii.) Visual and Other Monitoring:
Visual monitoring requires a qualitative visual inspection of each stormwater outfall, regardless
of representative outfall status, for the purpose of evaluating the effectiveness of the Stormwater
Pollution Prevention Plan (SPPP) and assessing new sources of stormwater pollution. All visual
monitoring shall be documented and records maintained with the SPPP. No analytical tests are
required. Visual monitoring of stormwater outfalls does not need to be performed during a
representative storm event, but must be performed at all discharge outfall locations.
Documentation of the initial visual monitoring event during the term of the permit shall be
submitted along with the required analytical monitoring data.
STORMWATER DISCHARGE
MONITORING REQUIREMENTS
Measurement
Sample
Sample
CHARACTERISTICS
Frequency °
Type 5
Location 5
Color
Annual
Visual
SDO
Odor
Annual
Olfactory
SDO
Clarity
Annual
Visual
SDO
Floating Solids
Annual
Visual
SDO
Suspended Solids
Annual
Visual
SDO
Foam
Annual
Visual
SDO
Oil Sheen
Annual
Visual
SDO
Other obvious indicators of
Annual
Visual
SDO
stormwater pollution
(b.) For purposes of the stormwater sampling required in this permit, all samples shall be collected from a
discharge resulting from a representative storm event (See Part I, Condition B.(2.), Stormwater
Definitions). Failure to monitor storm events in accordance with the specified frequency shall
constitute a violation of this permit.
PART I, Page 8 of 18

Permit No. NC0004308
Footnotes, A.(8.) :
1. Monitoring Frequency (Analytical): Once per year with samples taken during the sampling window of April
through November.
2, Sample locations (Analytical): SDO Samples to be taken at each stormwater discharge outfall (SDO) unless
representative outfall status is granted. If a facility has multiple discharge locations with substantially identical
-stormwater discharges that are required to be sampled, the Permittee may petition the Director for
representative outfall status. If it is established that the stormwater discharges are substantially identical and the
Permittee is granted representative outfall status, then sampling requirements may be performed at a reduced
number of outfalls.
3. For each sampled representative storm event the total precipitation, storm duration, and total flow must be
monitored. Total flow shall be either; (a) measured continuously, (b) calculated based on the amount of area
draining to the outfall, the amount of built -upon (impervious) area, and the total amount of rainfall, or (c)
estimated by the measurement of flow at 20-minute intervals during the rainfall event.
4. Monitoring Frequency (Visual and Other): The first visual monitoring event during the term of the permit must
be performed during the initial analytical monitoring event.
5. Sample Type and Location (Visual and Other): Visual monitoring requires a qualitative visual observation of
each Stormwater Discharge Outfall (SDO). No analytical testing or sampling is required.
PART I, Page 9-of 18

Permit No. NC-0004308
SECTION B - STORMWATER MANAGEMENT REQUIREMENTS
B.(1.) STORMWATER POLLUTION PREVENTION PLAN
The Permittee shall update -on an annual basis a Stormwater Pollution -Prevention Plan, hereinafter referred
to as the Plan. This Plan shall be considered public information in accordance with Part Il, Standard
Conditions, of this permit. The Plan shall include, at a minimum, the following items:
(a.) Site Plan. The site plan shall provide a description of the physical facility and the potential pollutant
sources which may be expected to contribute to contamination of stormwater discharges. The site
plan shall contain the following:
(i.) A general location map (USGS quadrangle map or appropriately drafted equivalent map),
showing the facility's location in relation to transportation routes and surface waters, the name
of the receiving water(s) to which the stormwater outfalI(s) discharges, or if the discharge is to a
municipal separate storm sewer system, the name of the municipality and the ultimate receiving
waters; and accurate latitude and longitude of the point(s) of discharge.
(ii.) A narrative description of storage practices, Ioading and unloading activities, outdoor process
areas, dust or particulate generating or control processes, and waste disposal practices.
(iii.) A site map drawn to scale with the distance legend indicating location of industrial activities
(including storage of materials, disposal areas, process areas and loading and unloading areas),
drainage structures, drainage areas for each outfall and activities occurring in the drainage area,
building locations and impervious surfaces, and the percentage of each drainage area that is
impervious. For each outfall, a narrative description of the potential pollutants which could be
expected to be present in the stormwater discharge.
(iv.) A list of significant spills or Ieaks of pollutants that have occurred at the facility during the 3
previous years and any corrective actions taken to mitigate spill impacts.
(v.) Certification that the stormwater outfalls have been evaluated for the presence of non-
stormwater discharges. The certification statement will be signed in accordance with the
requirements found in Part 11, Standard Conditions, of this permit.
(b.) Stormwater Management PIan. The stormwater management plan shall contain a narrative
description of the materials management practices employed which control or minimize the exposure
of significant materials to stormwater, including structural and nonstructural measures. The
stormwater management plan, at a minimum, shall incorporate the following:
(i.) A study addressing the technical and economic feasibility of changing the methods of operations
and/or storage practices to eliminate or reduce exposure of materials and processes to
stormwater. Wherever practicable the Permittee shall cover all storage areas, material handling
operations, manufacturing or fueling operations to prevent materials exposure to stormwater.
In areas where elimination of exposure is not practicable, the stormwater management plan shall
document the feasibility of diverting the stormwater runoff away from areas of potential
contamination.
(ii.) A schedule to provide secondary containment for bulk storage of liquid materials, storage of
Section 313 of Title III of the Superfund Amendments and Reauthorization Act (SARA) water
priority chemicals, or storage of hazardous materials to prevent leaks and spills from
contaminating stormwater runoff. If the secondary containment devices are connected directly
to stormwater conveyance systems, the connection shall be controlled by manually activated
valves or other similar devices [which shall be secured with a locking mechanism] and any
stormwater that accumulates in the containment area shall be at a minimum visually observed
for color, foam, and visible sheens, prior to release of the accumulated stormwater.
Accumulated stormwater shall be released if found to be uncontaminated. Records
documenting the individual making the observation, the description of the accumulated
stormwater and the date and time of the release shall be kept for a period of five years.
(iii.) A narrative description shall be provided of Best Management Practices (BMPs) to be considered
such as, but not limited to, oil and grease separation, debris control, vegetative. filter strips,
infiltration and stormwater detention or retention, where necessary. The need for structural
PART 1, Page 10 of 18

Permit No. NC0004308
BMPs shall be based on the assessment of potential of sources to contribute significant quantities
of pollutants to stormwater discharges and data collected through monitoring of stormwater
discharges.
(iv.) Inspection schedules of stormwater conveyances and controls and measures to be taken to limit
or prevent erosion associated with the stormwater systems.
(c.) Spill Prevention and Response Plan. The Spill Prevention and Response Plan shall incorporate a risk
assessment of potential pollutant sources based on a materials inventory of the facility. The facility
personnel (or team) responsible for implementing the plan shall be identified in the plan. At least one
of these designated personnel shall be on -site or available at all times during facility operations that
have the potential to contaminate stormwater runoff through spills or exposure of materials associated
with the facility operations.
(d.) Preventative Maintenance and Good Housekeeping Program. A preventative maintenance program
shall be developed. The program shell document schedules of inspections and maintenance activities
of stormwater control systems, plant equipment and systems. Inspection of material handling areas
and regular cleaning schedules of these areas shall be incorporated into the program.
(e.) Employee Training_ Training schedules shall be developed and training provided at a minimum on
an annual basis on proper spill response and cleanup procedures and preventative maintenance
activities for all personnel involved in any of the facility's operations that have the potential to
contaminatestormwater runoff. The facility personnel (or team) responsible for implementing the
training shall be identified in the Plan.
(f.) Designated Personnel. The Stormwater Pollution Prevention Plan shall identify one or more specific
positions responsible for the overall coordination, development, implementation, and revision to the
Plan. Responsibilities for all components of the Plan shall be documented and position assignments
provided.
(g.) Plan Amendment. The Permittee shall amend the Plan whenever there is a change in design,
construction, operation, or maintenance which has a significant effect on the potential for the
discharge of pollutants to surface waters. The Stormwater Pollution Prevention Plan shall be
reviewed and updated on an annual basis.
The Director inay notify the Permittee when the Plan does not meet one or more of the minimum
requirements of the permit. Within 30 days of such notice, the Permittee shall submit a time schedule
to the Director for modifying the Plan to meet minimum requirements. The Permittee shall provide
certification in writing (in accordance with Part II, Standard Conditions, of this permit) to the Director
that the changes have been made.
(h.) Facili . Inspections. Inspections of the facility and all stormwater systems shall occur at a minimum
on a semiannual schedule, once in the fall (September -November) and once during the spring (April -
June). The inspection and any subsequent maintenance activities performed shall be documented,
recording date and time of inspection, individual(s) making the inspection and a narrative description
of the facility's stormwater control systems, plant equipment and systems. Records of these
inspections shall be incorporated into the Stormwater Pollution Prevention Plan.
Visual monitoring as required in Part 1, Condition A.(9.), Stormwater Requirements (Outfalls 017, 018,
020), shall be performed in addition to facility inspections.
(i.) Implementation. Implementation of the plan shall include documentation of all monitoring,
measurements, inspections and maintenance activities and training provided to employees, including
the log of the sampling data and of activities taken to implement BMPs associated.with the industrial
activities,, including vehicle maintenance activities. Such documentation shall be kept on -site for a
period of five years and made available to the Director or his authorized representative immediately
upon request.
B.(2.) STORMWATER DEFINITIONS
(a.) Best Management Practices (BMPs)
PART I, Page 11 of 18

Permit No: NCOOG4308
Schedules of activities, prohibitions of practices, maintenance procedures, and other management
practices to prevent or reduce the pollution of waters of the United States. BMPs also include
treatment requirements, operation procedures, and practices to control plant site runoff, spillage or
leaks, sludge or waste disposal, or drainage from raw material storage.
(b.) Bulk Storage of Liquid Products
Liquid raw materials, manufactured products, waste materials or by-products with a single above
ground storage container having a capacity of greater than 660 gallons or with multiple above ground
storage containers having a total storage capacity of greater than 1,320 gallons.
(c.) Coal Pile Runoff
The rainfall runoff from or through any coal storage pile.
(d.) Landfill
A disposal facility or part of a disposal facility where waste is placed in or on land and which is not a
land treatment facility, a surface impoundment, an injection well, a hazardous waste long-term
storage facility or a surface storage facility.
(e.) Point Source Discharge
Any discernible, confined and discrete conveyance, including but specifically not limited to, any pipe,
ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, or concentrated animal
feeding operation from which pollutants are or may be discharged to waters of the state.
(f.) Representative Storm Event
A storm event that measures greater than 0.1 inches of rainfall and that is preceded by at Ieast 72
hours in which no storm event measuring greater than 0.1 inches has occurred. A single storm event
may contain up to 10 consecutive hours of no precipitation. For example, if it rains for 2 hours without
producing any collectable discharge and then stops, a sample may be collected if a rain producing a
discharge begins again within the next 10 hours.
(g.)
Runoff Coefficient
The fraction of total rainfall that is not infiltrated into or otherwise retained by the soil, concrete,
asphalt or other surface upon which it falls that will appear at the conveyance as runoff.
(h.) Secondary Containment
Spill containment for the contents of the single largest tank within the containment structure plus
sufficient freeboard to allow for the 25-year, 24-hour storm event.
(i.) Section 313 Water Priority Chemical
A chemical or chemical category which:
(i.) Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund Amendments and
Reauthorization Act (SARA) of 1986, also titled the Emergency Planning and Community Right -
to -Know Act of 1986;
(ii.) Is present at or above threshold levels at a facility subject to SARA title III, Section 313 reporting
requirements; and
(iii.) That meet at least one of the following criteria:
(iv.) Is listed in appendix D of 40 CFR part 122 on either Table II (organic priority pollutants), Table
III (certain metals, cyanides, and phenols) or Table IV (certain toxic pollutants and hazardous
substances);
(v.) Is listed as a,hazardous substance pursuant to section 311(b)(2)(A) of the CWA at 40 CFR 116.4;
or
(vi.) Is a pollutant for which EPA has published acute or chronic water quality criteria.
Significant Materials
PART I, Page 12 of 18

Permit No. NC0004308
Includes, but is not limited to: raw materials; fuels; materials such as solvents, detergents, and plastic
pellets; finished materials such as metallic products; raw materials used in food processing or
production; hazardous substances designated under section 101(14) of CERCLA; any chemical the
facility is required to report pursuant to section 313 of Title III of SARA; fertilizers; pesticides; and
waste products such as ashes, slag and sludge that have the potential to be released with stormwater
discharges.
(k.) Significant Spills
Includes, but is not limited to: releases of oil or hazardous substances in excess of reportable quantities
under section 311 of the Clean Water Act (Ref: 40 CFR 110.10 and CFR 117.21) or section 102 of
CERCLA (Ref: 40 CFR 302.4).
(I.) Stormwater Runoff
The flow of water which results from precipitation and which occurs immediately following rainfall or
as a result of snowmelt.
(m.) Stormwater Associated with Industrial Activi
The discharge from any point source which is used for collecting and conveying stormwater and
which is directly related to manufacturing, processing or raw material storage areas at an industrial
site. The term does not include discharges from facilities or activities excluded from the NPDES
program.
The following categories of facilities are considered to be engaging in "industrial activity":
(i.) Facilities subject to stormwater effluent limitations guidelines, new source performance
standards, or toxic pollutant effluent standards under 40 CFR Subchapter N Parts 400.- 471
(except facilities which are exempted under (k) of this definition);
(ii.) Facilities classified as Standard Industrial Classifications 24 (except 2434), 26 (except 265 and
267), 28, 29, 30, 311, 32, 33, 3441, 373;
(iii.) Facilities classified as Standard Industrial Classifications 10 through 14 (mineraI industry)
including active or inactive mining operations (except for areas of coal mining operations
meeting the definition of a reclamation area under 40 CFR 434.11(1)) and oil and gas exploration,
production, processing, or treatment operations, or transmission facilities that discharge
stormwater contaminated by contact with or that has come in contact with, any overburden, raw
material, intermediate products, finished products, byproducts or waste products located on the
site of such operations; inactive mining operations are mining sites that are not bring actively
mined, but which have an identifiable owner/operator;
(iv.) Hazardous waste treatment, storage, or disposal facilities, including those that are operating
under interim status or a permit under Subtitle C of RCRA;
(v.) Landfills, land application sites,, and open dumps that receive or have received•any industrial
wastes (waste that is received from any of the facilities described under this definition) including
those that are subject to regulation under Subtitle D of RCRA;
(vi.) Facilities involved in the recycling of materials, including metal scrapyards, battery reclaimers,
salvage yards and automobile junkyards, including but limited to those classified as Standard
Industrial Classification 5015 and 5093;
(vii.) Steam electric power generating, facilities, including coal handling sites;
(viii.) Transportation facilities classified as Standard Industrial Classifications 40, 41, 42, 44, and 45
which have vehicle'maintenance shops, equipment cleaning operations, or airport deicing
operations. Only those portions of the facility that are either involved in vehicle maintenance
(including vehicle rehabilitation', mechanical repairs, painting, fueling and lubrication),
equipment cleaning operations, airport deicing operations, or which are otherwise identified
under (a)-(g) or (i)-(k) of this definition are associated with industrial activity;
(ix.) Treatment works treating domestic sewage or any other sewage sludge or wastewater treatment
device or system, used in the storage treatment, recycling, and reclamation of municipal or
domestic sewage, including lands dedicated to the disposal of sewage sludge that are located
PART -I, Page 13 of 18

Permit No.'NC0004308
within the confines of the facility, with a design flow of 1.0 MGD or more, or required to have an
approved pretreatment program under 40 CFR part 403. Not included are farm lands, domestic
gardens or lands used for sludge management where sludge is beneficially reused and which are
not physically located in the confines of the facility, or areas that are in compliance with section
405 of the CWA;
(x.) Construction activity including clearing, grading and excavation activities except: operations
that result in the disturbance of less that five acres of total land area which are not part of a
larger common plan of development or sale;
(xi.) Facilities under Standard Industrial Classifications 20, 21, 22, 23, 2434, 25, 265, 267, 27, 283, 285,
30, 31 (except 311), 323, 34 (except 3441), 35, 36, 37 (except 373), 38, 39, 4221-25, (and which are
not otherwise included within (a)-O) of this definition).
For the categories of industries identified in (a) through 0) of this definition the term includes, but is
not limited to, stormwater discharges from industrial plant yards; immediate access roads and rail
Iines used or traveled by carriers of raw materials, manufactured products„waste material, or by-
products used or created by the facility; material handling sites; refuse sites; sites used for the
application or disposal of process wastewaters; sites used for the storage and maintenance of material
handling equipment; sites used for residual treatment, storage, or disposal; shipping and receiving
areas; manufacturing buildings; storage areas (including tank farms) for raw materials,land
intermediate and finished products; and areas where industrial activity has taken place'in the past and
significant materials remaini and are exposed to stormwater. For the categories of industries identified
in (k), the term includes only stormwater discharges from all areas listed in the previous sentence
(except access roads) where material handling equipment or activities, raw material, intermediate
products, final products, waste material, by-products, or industrial machinery are exposed to
stormwater. '
Material handling activities include the: storage, loading and unloading, transportation, or
conveyance of any raw material, intermediate product, finished product, by-product or waste product.
The term excludes areas located on plant lands separated from the plant's industrial activities, such as
office buildings and accompanying parking Iots as long as the drainage from the excluded areas is not
mixed with stormwater drained from the above -described areas.
Industrial facilities (including industrial facilities that are Federally or municipally owned or operated
that meet the description of the facilities listed in (a)-(k)) include those facilities designated under 40
CFR 122.26(a)(1)(v).
(n.) Ten Year Design Storm
The precipitation event of a duration which will produce the maximum peak rate of runoff for the
watershed of interest resulting from a rainfall event of an intensity expected to be equaled or
exceeded, on the average, once in ten years.
(o.) Total Flow
The flow corresponding to the time period over which the sample collection occurs. The total flow
calculated based on the size of the area draining to the outfaIl, the amount of the built -upon
(impervious) surfaces within the drainage area, and the total amount of rainfall occurring during the
sampling period.
(p.) Vehicle Maintenance Activity
Vehicle rehabilitation, mechanical repairs, painting, fueling, Iubrication, vehicle cleaning operations,
or airport deicing operations.
(q.) Visible Sedimentation
Solid particulate matter, both mineral and organic, that has been or is being transported by water, air,
gravity, or -ice from its site of origin which can be seen with the unaided eye.
(r.) Waste Pile
Any non -containerized accumulation of solid, non -flowing waste that is used for treatment or storage.
PART I, Page 14 of 18

Permit No. NCO004308
SECTION C - SPECIAL CONDITIONS
r.
C#.) CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (Quarterly)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality
to Ceriodaphnia dubia at an effluent concentration of 16'%o at Outfall 012 or 90"/4 at any other outfail.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the
"North Carolina Ceriodaplu-tia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent
versions or "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February
1998) or subsequent versions. Effluent samples for self -monitoring purposes must be obtained during
representative effluent discharge below all waste treatment. The tests will be performed once during each
calendar quarter (January -March, April -June, July -September and October -December).
If the test procedure performed as the first test of any single quarter 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 -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the
highest concentration having no detectable impairment of reproduction or survival and the lowest
concentration that does have a detectable impairment of reproduction or survival. The definition of
"detectable impairment," collection methods, exposure regimes, and further statistical methods are specified
in the "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) 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 TGP313
for the pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be
sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch 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 Iaboratory 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 quarter 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
Environmental Sciences Branch at the address cited above.
Should the Permittee fail to monitor during a month in which toxicity monitoring is required, monitoring
will be required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality 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.
PART I, Page 15 of 18

Permit No: NCO004308
C.(2.) ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (Quarterly)
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North
Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A Single
Effluent Concentration" (Revised-July,1992 or subsequent versions). The monitoring shall be performed as
a Fathead Minnow (Puriephales promelas) 24-hour static test. The effluent concentration at which there
may be at no time significant acute mortality is 90% (defined as treatment two in the procedure document).
Effluent samples for self -monitoring purposes must be obtained during representative effluent discharge
below all waste treatment. The tests will be performed once during each calendar quarter (January -March,
April -June, July -September and October -December).
y
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code' TGE6C.
Additionally, DWQ Form AT-2 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than
30 days after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. 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 the period 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
Environmental Sciences Branch at the address cited above.
Should any single monitoring event indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement
will revert to the frequencies specified above.
Should the permittee fail to monitor during a period in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly
test requirement will revert to the frequencies specified above.
Should any test data from either these monitoring requirements or tests performed by the North Carolina
Division of Water Quality 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 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.
C.(3.) ACUTE TOXICITY MONITORING (Quarterly)
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined as definitive in
E.P.A. Document EPA/600/4-90/027 entitled "Methods for Measuring the Acute Toxicity of Effluents to
Freshwater and Marine Organisms." The monitoring shall be performed as'a Fathead Minnow (Pimephales
promelas) 24-hour static test. Effluent samples for self -monitoring purposes must be obtained during
representative effluent discharge below all waste treatment. The tests will be performed on a discharge
event during each calendar quarter (January -March, April -June, July -September and October -December).
PART I, Page 16 of 18

Permit No. NC0004308
The parameter code for this test is TAE6C. All toxicity testing results required as part of this permit
condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it was performed,
using the appropriate parameter code. Additionally, DWQ Form AT-1 (original) is to be sent to the
following address:
Attention: Environmental Sciences Branch
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than
30 days after the end of the reporting period for which the report is made
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. 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 hhe facility during a quarter 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
Environmental Sciences Branch at the address cited above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality 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 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.
C.(4.) ACUTE TOXICITY MONITORING (Annual)
The permittee shall conduct annual toxicity tests using protocols defined as definitive in E.P.A. Document
EPA/600/4-90/027 entitled "Methods for Measuring the Acute Toxicity of Effluents to Freshwater and
Marine Organisms." The monitoring shall be performed as a Fathead Minnow (Piniephales promelas) 24-hour
static test. Effluent samples for self -monitoring purposes must be obtained below all waste treatment: The
permittee will conduct one test annually, with the annual period beginning in January 'of the calendar year
of the effective date of the permit.
The annual toxicity test must be performed by June 30. Should there be no discharge of flow from the
facility during the six month period January 1-June 30, 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 in the comments section indicate "No FIow for January 1-June 30, {calendar year)." The report
must be signed and submitted to the Environmental Sciences Section at the address noted below.
If no discharge event occurs from January 1-June 30, yet a discharge event occurs from July 1-December
31, then the facility must perform toxicity monitoring and report the data as noted below.
The parameter code for this test is TAE6C. All toxicity testing results required as part of this permit
condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it was performed,
using the appropriate parameter code. Additionally, DWQ Form AT-1 (original) is to be sent to the
following address: , ,
Attention: Environmental Sciences Branch
PART 4, Page 17 of 18

Permit No: N00004308
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental 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 and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of
the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the
waste stream.
Should any test data from either these monitoring requirements or tests performed by the North Carolina
Division of Water Quality 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 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.
C.(S.) BIOCIDES
(a.) The Permittee shall not use any biocides except those specifically approved by the Director and only
according to the terms and conditions of such approval. The addition of chromium, copper, or zinc is
specifically prohibited except as components of biocidal compounds approved for use at this facility.
(b.) Approved biocides shall consist of those approved in conjunction with the current permit application
and others subsequently approved by the Director. The Division may withdraw its approval for any
biocides when it considers such action necessary to protect water quality in the receiving stream.
The Permittee shall notify the Director in writing not later than ninety (90) days prior to the planned use of
any additional biocide that may be toxic to aquatic life. Such notification shall include submittal of a
completed Biocide Worksheet Form 101 and a map locating the discharge point and receiving stream.
PART I, Page 18 of 18

SMITH, ANDEHSON, BLOUNT,
DOASETT, MITCHELL & eJETZNIGAN, L. L. P.
OFFICES
2500 Wachovia Capitol Center
Raleigh, North Carolina 27601
DAVID W. BERRY
DIRECT DIAL: [phone]
E-Mail: dher a)smithlaw.com
VIA HAND DELIVERY
Ms. Nancy Reed Dunn
Assistant Attorney General
N.C. Department of Justice
Old Education Building'
114 West Edenton Street
Raleigh, North Carolina 27602
LAWYERS
February 22, 2008
Re: Alcoa Inc. v. N.C. Department of Environment and Natural Resources,
Division of Water Quality, 06 EHR 1883, Stanly County, N. C.
Dear Nancy:
MAILING ADDRESS
P.O: Box 2611
Raleigh, North Carolina
27602-2611
TELEPHONE: [phone]
FACSIMILE: [phone]
Enclosed please find Alcoa's signed duplicate originals of the Settlement Agreement in the above -
referenced contested case. Please provide its with a fully executed original signed by you and the Division of
Water Quality at your earliest convenience.
Also, please send me a copy of the Division's issuance of the modified NPDES permit so that I can
proceed with filing the Notice of Withdrawal in the Office of Administrative Hearings early next week as
required under the Settlement Agreement.
Please do not hesitate to call me if you have any questions. Thank you for your cooperation and
assistance in this matter.
Sincerely,
SMITH, ANDERSON, BLOUNT, DORSETT,
MITCHELL & JERNIGAN, L.L.P.
By:
David W. Berry
Enclosures
DWB: sel NORTH CAROLINA
ATTORNEY GENERAL'S OFFICE
cc: Richard D. Dworek, Esq. (with enclosure via e-mail only)
FEB 2 2 2008
EWIRONMENTAL DIVISION
RECEIVED
#1031378vl

STATE OF NORTH. CAROLINA
COUNTY OF STANLY
fN THE OFFICE OF
ADMINISTRATIVE HEARINGS
06 EHR 1883
ALCOA INC., )
Petitioner, )
)
V. ) SETTLEMENT AGREEMENT
NORTH CAROLINA DEPARTMENT OF )
ENVIRONMENT AND NATURAL }
RESOURCES, )
DIVISION OF WATER QUALITY, )
Respondent.. )
Alcoa Inc., ("Petitioner" or "Alcoa") and the Division of Water Quality ("DWQ") of
Respondent North Carolina Department of Environment and Natural Resources hereby enter into
this Settlement Agreement ("Agreement") in order to settle and resolve with finality and without
adjudication a matter in controversy between them that is the subject of this contested case
pursuant to N.C. Gen. Stat. §1SOB-3I(b). This matter arose out of DWQ's issuance of National
Pollutant Discharge Elimination System ("NPDES") Permit NCO004308 to Alcoa, which is the
Document Constituting Agency Action in this contested case. Without any hearing of fact or law
in the above -styled matter, IT IS THEREFORE AGREED BY THE PARTIES THAT:
1. In order to resolve and settle this contested case and avoid the cost and delay of
further litigation, and without admitting liability, the parties have entered into this Agreement
and have agreed that all parties have been correctly designated and that there is no question as to
misjoinder or nonjoinder.
2. Respondent agrees to re -issue NPDES Permit NC 0004308 with the modifications
shown in the "Modified NPDES Permit for Settlement Purposes," which is attached hereto as
Page 1
Settlement Agreement (Execution Version)

Exhibit A and incorporated herein by reference (the "Modified NPDES Permit"). The
Respondent shall re -issue the Modified NPDES Permit on February 22, 2008, with an effective
date of March 1, 2008, and an expiration date of February 28, 2013. Respondent's re -issuance of
the Modified NPDES Permit with the terms found in Exhibit A shall constitute a full and
complete settlement of this contested case. Petitioner shall execute a separate Withdrawal of
Petition, and that Withdrawal of Petition shall be filed no later than three (3) business days after
Respondent re -issues the Modified NPDES Permit.
3. Petitioner hereby expressly acknowledges that a violation of any of the conditions
in the Modified NPDES Permit on or after the March 1, 2008 effective date constitutes a
violation of the Modified NPDES Permit, and that Petitioner shall accordingly be subject to
enforcement action including, but not limited to, civil penalties, for such a violation.
4. Modification of the terms of this Agreement shall not be effective or binding upon
the parties unless and until such amendment is committed to in writing, executed by the parties
hereto.
5. The parties agree that the consideration for this settlement is the promises -
contained herein and that this Agreement contains the whole agreement between them.
6. This. Agreement shall be binding upon the parties, their successors and assigns,,
upon execution by the undersigned, who represent and warrant that they are authorized to enter
into this Agreement on behalf of the parties hereto.
7. The parties agree to bear their own attorneys' fees, costs, and other expenses that
have been incurred in connection with any stage of this contested case.
Page 2
Settlement Agreement (Execution Version)

8. This Agreement may be executed and delivered in any number of counterparts,
each of which as so executed and delivered shall be deemed to be an original and all of which
shall constitute one and the same instrument.
[SIGNATURES ON NEXT PAGE]
Page 3
Settlement Agreement (Execution Version)

t .
FOR THE DIVISION.OF.WATER,
QUAL TY: _
172 41yo-l"i
Susan A. Wilson, NPDES Western Program
Date: 210 g
APPROVED AS TO FORM BY:
ROY COOPER,
Attorney General
N.C. Department of Justice
Environmental Division
1699 Mail Service Center
Raleigh, NC 27699-1699
Telephone: [phone]
Facsimile: [phone]
Date: .,2 ,oZ
lt�;5
FOR ALCOA INC:
]L-
kMark!Gross
Faci 'ty Manager - Badin Works
Date: C2—o;2 1- D r
Attorneys for Alcoa Inc.
W.
David W. Berry
Smith, Anderson, Blount, Dorsett, Mitchell &
Jernigan, L.L.P.
N.C. Bar No. 18912
P.O. Box 2611
Raleigh, N.C. 27602
Telephone: [phone]
Facsimile: [phone]
Date:
Page 4
Settlement Agreement (Execution Version)

Permit No. NC0004308
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
Exhibit A
MODIFIED NPDES PERMIT
PERMIT For Settlement Purposes
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended,
Alcoa Inc.
is hereby authorized to discharge wastewater from a facility located at the
Alcoa - Badin Works
NC Hwy. 740 & NCSR 1719
Stanly County
to receiving waters designated as Little Mountain Creek and Badin Lake (Yadkin River) in the Yadkin - Pee
Dee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts 1, II,
111, and IV of this permit.
This permit shall become effective ........................................... .March 1, 2008
This permit and the authorization to discharge shall expire at midnight on ........................... February 28, 2013
Signed this day ..................... February 22, 2008
DRAFT
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management
Commission

Permit No. NCO004308
SUPPLEMENT TO PERMIT COVER SHEET
The authority to operate and discharge from this facility arises exclusively under the terms and conditions of this
NPDES Pennit. Therefore; -upon the effective date of this'permit, any and all previous NPDES-Pernrits'issued for
this facility and bearing this permit number are revoked.
Alcoa Inc.
is hereby authorized to:
1. Discharge the following:
• non -contact cooling and make-up waters, condensate, fire protection water, groundwater, and
stormwater at Outfall 002; _.
• non -contact cooling and make-up waters, condensate, fire protection water, groundwater, and
stormwater at OutfaIl 004;
• non -contact cooling water, condensate, fire protection water, groundwater, and stormwater at
Outfall 005; I
• non -contact cooling water, condensate, fire protection water, groundwater, and stormwater at
Outfall 012 (and at Outfall 011 when flows exceed the capacity of the diffuser);
• groundwater and stormwater at OutfaI1013;
• groundwater seepage from the Old Brick Landfill and stormwater at OutfaIl 019; and
• stormwater at Outfalls 017, 018, and 020;
all outfalls being located at or near the Alcoa - Badin Works in Stanly County; and
2. Discharge such process and ancillary process wastewaters, groundwater, and stormwater from locations
specified on the attached map into an unnamed tributary to Little Mountain Creek (Outfalls 004, 005,
017, and 018) and into Badin Lake (Yadkin River) (Outfalls 002, 011, 012, 013, 019, 020) which are
classified as Class "C" waters and Class "WS-IV CA & B" waters, respectively, in the Yadkin -Pee Dee
River Basin.
All discharges shall be in accordance with the attached schedules as follows:
Part I: Monitoring, Controls, and Limitations for Permitted Discharges
A. Effluent Limitations and Monitoring Requirements
B. Stormwater Management
C. Special Conditions
Part II: Standard Conditions for NPDES Permits
Part III: Other Requirements
Part IV: Special Conditions for Municipal Facilities
Any other point source discharge to surface waters of the state is prohibited unless covered by another
permit, authorization, or approval.
This permit does not relieve the Permittee from responsibility for compliance with any other applicable
federal, state, or local law, rule, standard, ordinance, order, judgment, or decree.
ii

VICINITY MAP
USGS Quad #: F18NE, F18NW
Badin & New London, NC
N
SCALE
1:24,000
(1" = 20001
Alcoa, Inc. - Badin Works
NC0004308
Receiving Stream: Badin Lake (Yadkin River) and
UT to Little Mountain Creek
Stream Classification: WS-1V CA & B; and C
River Basin: Yadkin/Pee Dee
Sub -Basin #: 03-07-08
I11

Permit No. NC0004308
PART
MONITORING, CONTROLS, AND LIMITATIONS FOR PERMITTED DISCHARGES
SECTION A - EFFLUENT LIMITATIONS AND. MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and Iasting until expiration, the Permittee is
authorized to discharge wastewater and stormwater associated with the activities described in its current
NPDES permit application. Such discharges shall be monitored, controlled, and limited as specified below.
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 002,/S02
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling and make-up waters, condensate, fire
protection waters, groundwater, and stormwater at Outfall 002/S02 subject to the following effluent
limitations and monitoring requirements:
(a.) Outfall 002. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling and make-up
waters, condensate, fire protection waters, orgroundwater.
r
xi
,
MONITORING REQUIREMENTS-:~'
Mrnrathy.ea.
s! ure.. m.CeG.nSa�mpfelxe1tl*.;
s
mm
TypoScaamtipolne;_*ri
V
, _
Flow
Weekly Instantaneous E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month Composite 2 E
Shall remain within the range of 6.0 to
pH
9.0 standard units at all times
2/Month Grab E
Temperature (°C)
2/Month Grab E
Total Fluoride
Monthly Composite 2 E
Total Residual Chlorine
Monthly Grab E
Acute Toxicity 3
Quarterly Composite 2 E
(b.) OutfaIl 502. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of storfnwater.
.n1 Z4 1
PARAMETER read
EFFL`°UENT LIMITATIONS'm ati'�'
',.'z MONITORING REQUIREMENTSn mti'f
? -r r• ^, ,4W54t•ry 1 - j - ii a "t i
Monthly gWeekly-Datly
r
Measurement5amlile t,+=Sample .
-r-�
a'i,•,. aaa,..W+,4€
i^ r R• dq"5`,r z. ,..,, 0(u: l
�- .� +...�.4 '.
naTYpe�mj Locations i;;
ry.r
a.4Averaget�jiQ`'hAverage,�l',l:Maximum
{Frequency'.,s
�..
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
pH
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Footnotes, A.(1.) :
1. Sample locations: E - Effluent.
2. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
3. Acute Toxicity (Fathead Minnow) 24 hr. P/F pQ 90%; quarterly Oanuary-March, April -June, July -September, and
October -December); see Condition C.(2.), Acute Toxicity Permit Limit.
4. Monitoring should be performed during a representative storm event. See Condition B. (2.), Stormwater
Definitions. Semi-annual means 2/Year, during January -June and July -December.
PART I, Page 1 of 19

Permit No. NCO004308
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - OutfaI1004/SO4
During the period beginning on the effective date of this permit and Iasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling and make-up waters, condensate, fire
protection waters, groundwater, and stormwater at Outfall 004/SO4 subject to the following effluent
limitations and monitoring requirements:
(a.) OutfaI1004. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling and make-up
waters, condensate, fire protection waters, orgroundwater.
f PARAMETER 4 s ,
�= '€
��1 ,2,EFFi_UEIVT LIMITATIONS $'�y {
'
r, '' ;s MONITORING. REQUIREMENTS
� _.
�
Monthly� i� r Weekly,�l r"t` Daily ,��
s , •s ... 4 � � re � � � :. 4
Measurement �' Sample Type s�` ° ?Samples.
n ; �,' {.,c
'' A�erage`,� ;,Average xt Maximumt,
? Frequency x _��7 a ,,� ;'Location
Flow
Weekly Instantaneous E
Total Residual Chlorine 2
17 ug/L
Weekly Grab E
Total Suspended Solids
2/Month Composite 3 E
pH
Shall remain within the range of 6.0 to
2/Month Grab E
9.0 standard units at all times
Temperature (OC)
See Footnote 4
2/Month Grab E
Total Aluminum
Monthly Composite 3 E
Total Cyanide
Monthly Composite 3 E
Total Fluoride
Monthly Composite 3 E
Temperature (°C)
See Footnote 4
Quarterly Grab U,D
(b.) OutfalI SO4. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stormwater.
s f y1 ir'j' 3 f„
�;�Ft�rPA1tAMETER a r F^
EFFLUENT;LIMITATIONS,�'�,�,'
jt; � MONITORING REQUIREMENTS_ y
Monthly{Y #-Weekly �� ,'Daily
Measurements Sarnple �!
5� '
S
TAverage �:JAverage iYP,,,Maximumk
Fteq'uency ;Location
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
pH
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
(c.) The Permittee shall obtain authorization from the Division of Water Quality prior to utilizing any
biocide in the cooling water. THERE SHALL BE NO CHROMIUM, ZINC, OR COPPER ADDED TO
THE COOLING WATER EXCEPT IN THE FORM OF PRE -APPROVED ADDITIVES TO BIOCIDAL
COMPOUNDS. See Condition C.(5.), Biocides.
Footnotes, A.(2.)
1. Sample locations: E - Effluent, U - Upstream, D - Downstream.
2. The Total Residual Chlorine limit shall become effective on November 1, 2008. The Division may re -open the
final effluent limit based upon the results of a site -specific Method Detection Limit (MDL) study that Alcoa
intends to conduct.
3. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
4. The discharge shall not cause the temperature of the receiving water to exceed 2.8°C above background and in
no case exceed 32°C.
5. Monitoring should be performed during a representative storm event. See Condition B. (2), Stormwater
Definitions. Semi-annual means 2/Year, during January -June and July -December.
PART I, Page 2 of 19 1

Permit No. NC0004308
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 005/SQ5
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge'non- contact cooling water, condensate, fire protection
waters, groundwater, and storinwater at Outfall 005/505 subject to the following effluent Iimitations and
monitoring requirements:
(a.) Outfall 005. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling water,
condensate, fire protection waters, groundwater, or compressor condensate.
f •' - 7g 'K i j P {+
8 R'1 6 " '`S�:- i
g ',�i' EFFLUNT LIMITATIONSfiy s
Csy7
Monthly h;t<,� Weeklyr ,��,'��'�, Dail ��`
Average„Averagen„. Maximumsx
4 't.l
Mir ,�s MONITORING9REQUIREMENTS�
Measurement I,l,x Sam le � iyr'' �5am le t;
Frequency f 4i Type ;� Loi:at on'
Flow
Weekly Instantaneous E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month Composite 2 E
Temperature (°C)
See Footnote 4
2/Month Grab E
Shall remain within the range of 6.0 to
pH
9.0 standard units at all times
2/Month Grab E
Total Aluminum
Monthly Composite 2 E
Total Fluoride
Monthly Composite 2 E
Total Cyanide
Monthly Grab E
Total Residual Chlorine
Monthly Grab E
Chronic Toxicity 3
Quarterly Composite 2 E
(b.) Outfall S05. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stonnwater.
k PARAM
FA.t ? eti y 7 i L�il•ac ' ,, y,-�1'six„ .-{..
EFFLUENT LIMITATIONS `'
M j r ^MONITORING REQUIREMENTSa'
Mvoirtahgl a. r„ A-Wv-veev k.»l�Y �1 t� t''sxNM
eera e zuMaximums
—e...a.,rsamurem.ve,x n: t fV k`Sama. le
_Y4:
tFre4uenc Types
.,_�...
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
pH
Semi -Annually Grab E
(c.) The Permittee shall obtain authorization from the Division of Water Quality prior to utilizing any
biocide in the cooling water. THERE SHALL BE NO CHROMIUM, ZINC, OR COPPER ADDED TO
THE COOLING WATER EXCEPT IN THE FORM OF PRE -APPROVED ADDITIVES TO BIOCIDAL
COMPOUNDS. See Condition C.(5.), Biocides.
(d.) The Division may re -open this permit to modify these effluent limitations and monitoring
requirements if monitoring results indicate that the discharge has a reasonable potential to impact
receiving water quality.
Footnotes, A. (3.)
1. Sample locations: E - Effluent.
2. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
3. Chronic Toxicity (Ceriodaphnia) P/F at 90%; quarterly (January -March, April -June, July -September, and
October -December); see Condition C.(1.) , Chronic Toxicity Permit Limit.
4. The discharge shall not cause the temperature of the receiving water to exceed 2.8°C above background and in
no case exceed 32°C. U,D monitoring for Outfall 004 shall be used to determine temperature changes at 004/005.
5. Monitoring should be performed during a representative storm event. See Condition B. (2), Stormwater
Definitions. Semi-annual means 2/Year, during January -June and July -December.
` PART I, Page 3 of 19
1 .

• Permit No. NC0004308
A.(4.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 011
(a.) During the period beginning on the effective date of this permit and Iasting until the expiration date of
this permit; the Permittee is authorized't& discharge -storm flows exceeding the Outfa[1012 diffuser
capacity at Outfall 011 subject to the fallowing effluent limitations and monitoring requirements:
PARAMETER
"EFFLUEIVTLIMITATIONS °a
n ut i'I MONITORING REQUIREMENTS{ k'
Monthly�t;:� Weeklyl ti' Daily
Measurements' "Sample t ,;•' Sample
_
•,.ra,`
;, Ave�agen: Average ,Maximum
aType : location
,' fF;?° .:
..Frequericy'u
Flow
Quarterly Instantaneous E
Total Fluoride
Quarterly Grab E
Total Cyanide 3,4
46.6 ug/L
Quarterly Grab E
Oil & Grease
Quarterly Grab E
Total Suspended Solids
Quarterly Grab E
Shall remain within the range of 6.0 to
pH
Quarterly Grab E
9.0 standard units at all times
Acute Toxicity
See Footnotes 5,6
Annually Grab E
(b.) Outfall S11. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stormwater exceeding the Outfall 012
diffuser capacity.
���i W `
rrt„; }riu- `.'Sf >#':; h.�,.
r'PARAMETER`S k ,k s'
�4. "�'EFFtLUENTLIMITATIONSr Y`t
`�=MONITORING'RE4UIREMENTS
e
., 5w 'lN •. '-y 5 K
` � Monthlyh" Weekly '� Daily :3y
---
V
"Measurement' ' Sample;Type Sample •
, T ,� f i �
Average average �� 1, aximum
iFrequericy3�r Location 4
'`
.4�.Sh.� .:T...e'I iM.,.W %i e .�M.
�. �� s..�h% -K:eT 'r
f
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Oil & Grease
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
pH
Semi -Annually Grab E
Footnotes, A.(4.) :
1. Sample locations. E - Effluent.
2. For the purposes of this permit, a minimum of one sample in a calendar week shall be sufficient to determine a
parameters "Weekly Average" value.
3. The Total Cyanide limit shall become effective on November 1, 2009.
4. The Permittee shall report on its Discharge Monitoring Reports the actual laboratory results for each effluent
sample tested. However, for the purpose of compliance with this permit, the quantitation limit for Total Cyanide
shall be defined as 10 ug/L, and the Division shall treat each reported value less than 10 ug/L as zero.
5. Monitoring for the annual toxicity test should coincide with that for one of the four quarterly cyanide tests.
6. Acute Toxicity (Fathead Minnow) morutoring, definitive; annual; see Condition C.(4.), Acute Toxicity
Monitoring. If any annual toxicity test demonstrates toxicity ( LC-50 reported less than 100 %), testing shall
increase to quarterly. if five (5) consecutive quarterly tests demonstrate no toxicity (LC-50 > 10004), testing shall
revert to annually. Effluent may be filtered through a 24 mm mesh prior to testing.
7. Monitoring for these parameters should be performed during a representative storm event. See Condition B. (2.),
Stormwater Definitions.
PART I, Page 4 of 19

Permit No. NC0004308
i ,
A.(5.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 012/S12
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling water, condensate, fire protection
waters, groundwater, and stonnwater at Outfall 012/S12 subject to the following effluent Iimitations and
monitoring requirements:
(a.) Outfall 012. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling water,
condensate, fire protection waters, or groundwater.
+H - Ar "x'
�
PARAMETER , . H
"��f� J"EFFLU_ ENT LEMITATIOI�IS "
, N MONITORING REQUIREMENTSKx
�. �. �;- r
z Monthly ,A Weekly.X � ,Daily yti
Measurement Saple;v Sample t.".
Agerag' Avera e'"Maximum
.. Fre uenc
i "' Tµma
t
'' Location'
1
4
Flow
Weekly
Instantaneous
E
.Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month
Composite Z
E
Oil & Grease
30.0 mg/L 60.0. mg/L
2/Month
Grab
E
Total Cyanide 3
434.0 ug/L
2/Month
Grab
E
Shall remain within the range of 6.0 to
pH
9.0 standard units at all times
2/Month
Grab
E
Total Aluminum
Monthly
Composite 2
E
Total Fluoride
Monthly
Composite z
E
Total Residual Chlorine
Monthly
Grab
E
Chronic Toxicity 4
Quarterly
Composite Z
E
(b.) OutfaIl 512. The following effluent Iimitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stonnwater.
� ^:_ at q PARAMETER, `mow
EFFI IJENT LIMITATE01f5 3�
`1f MONITORfNG REQUIREMENTS?h,,
A � Monthlya �d Weekl`y je i Daily
Me-asurerroent_Sample :
?;5ampleTypepi�
eP"�'''Averae� axununiFre
q ueric5` Lo anon`'
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Oil & Grease
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
pH
Semi -Annually Grab E
Footnotes, A.(5.) :
1. Sample locations: E - Effluent.
2. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
3. The Permittee shall report on its Discharge Monitoring Reports the actual laboratory results -for each effluent
sample tested. However, for the purpose of compliance with this permit, the quantitation limit for Total Cyanide
shall be defined as 10 ug/L, and the Division shall treat each reported value less than 10 ug/L as zero.
4. Chronic Toxicity (Ceriodaphnia) P/F at 16%; quarterly (January -March, April -June, July -September, and
October -December); see Condition C.(1.), Chronic Toxicity Permit Limit.
5. Monitoring for these parameters should be performed during a representative storm event. See Condition B. (2.),
Stormwater Definitions.
PART I, Page 5 of 19

Permit No. NCO004308
A.(6.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 013
(a.) During the period beginning on the effective date of this permit and lasting until the expiration date of
this permit, the Permittee is authorized to discharge groundwater iznd'stormwater at Outfall 013
subject to the following effluent limitations and monitoring requirements:
0� " j PARAMETERS s r
LIMITATIONS,z
r `� , `f MONITORING REQUIREMENT zi
MantFrly Weeklyis;ssr§ YDailyi�'
Measurement ,* Sample T,� Sample
ype `Location
x°, ?= L, ;s,
Average S,Averagek,Maxinium
# aFrequency�r:sr:4 _��
r
Flow
Weekly Instantaneous E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month Composite 3 E
Total Fluoride,
J-8 mg/L
2/Month Composite 3 E
Total Cyanide
2/Month Grab E
pH
Shall remain within the range of 6.0 to
2/Month Grab E
9.0 standard units at all times
Total Aluminum
Monthly Composite 3 E
Acute Toxicity
See Footnote 5
Quarterly Composite 3 E
(b.) The Division may re -open this permit to modify these effluent limitations and monitoring
requirements if monitoring results indicate that the discharge has a reasonable potential to impact
receiving water quality or that this discharge consists of uncontaminated stormwater.
Footnotes, A.(6.) :
1. Sample locations: E - Effluent.
2. For the purposes of this permit, a minimum of one sample in a calendar week shall be sufficient to determine a
parameter's "Weekly Average" value.
3. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
4. The Total FIuoride limits shall become effective on November 1, 2009,
5. Acute Toxicity (Fathead Minnow) 24 hr. P/F Q 90%; quarterly Oanuary-March, April -June, July -September, and
October -December); see Condition C.(2.), Acute Toxicity Permit Limit.
PART I, Page 6 of 19

Permit No. NC0004?)08,
A.(7.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfa11019/S19
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is -authorized to discharge groundwater seepage from the Old Brick Landfill and
stonnwater at Outfall 019/S19 subject to the following effluent limitations and monitoring requirements:
(a.) OutfaIl 019. The following effluent Iimitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount ofgroundwater seepage from the Old
Brick Landfill.
r,EFFLUENT
t PARAMETER �S ':.:
LIMITATIONS r
,;p £ MONITORING REQUIREMENTS '
`Monthly,'' Weekly`, Daily f,,
Measurements ` k'; Sample
xt $ample.,Type
`rw _ . ,c"w;�r�y ;
Average; ti?Average °,Maximum`:,
Freque`ricy�� 1. Location'j,
Flow
Quarterly Instantaneous E
Total Suspended Solids
Quarterly Grab E
Total Aluminum
Quarterly Grab E
Total Fluoride
Quarterly Grab E
Total Cyanide
Quarterly Grab E
Shall remain within the range of 6.0 to
pH
Quarterly Grab E
9.0 standard units at all times
Acute Toxicity
I Quarterly Grab E
(b.) OutfaIl S19. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stormwater. The Division may re -open this
permit to modify these effluent limitations and monitoring requirements if monitoring results indicate
that the discharge has a reasonable potential to impact receiving water quality.
- i.._v� 9 �i ! - l �,
rk :.•. .... f _5—_
EFFLUENT LIMITATIONS;MONITORING
Lk�..✓.T _: .,. .. o-..... ... •.. .R i
REQUIREMENTS
PAI2AMTER s
Monthly t ;. Weekly'�n' Dalyk T
Measurementky� ��: k"��:� Sample s
tifyro_t
uiAverage�s ;Mazimumr,,
Sample?yp
F�e.�!ericy
raAverage
;,' F.�Location,' ,
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
pH
Semi -Annually Grab E
Footnotes, A.(7.) :
1. Sample locations: E - Effluent.
2. Acute Toxicity (Fathead Minnow) monitoring, definitive; quarterly Qanuary-March, April -June, July -September, .
and October -December); see Condition C.(3.), Acute Toxicity Monitoring.
3. Monitoring for these parameters should be performed during a representative storm event. See Condition B. (2•),
Stormwater Definitions.
PART I, Page 7 of 19

Permit No. NC0004308
A.(8.) STORMWATER MONITORING REQUIREMENTS - Outfalls 017, 018, & 020
(a.) During the period beginning on the effective date of this permit and lasting until the expiration date of
this permit, the Permittee is authorized to discharge 'stormwater at Outfalls 017, 018, and 020 subject
to the following effluent limitations and monitoring requirements:
(i.) Analytical Monitoring:
tp
,:34 �'s� �n> ; � kvts' y� y{ 'a r`
r ST012MWATER DISCH,4RGE�
� s ,.,
, UN1T5
3
r i r � €•�:�' r qkr�
' CUT OFF, {�
MONITORING REQUIREMENTS
.� �1: t,
Sample'
1Sarnple`, .
CHARACTERISTICS% `f
5�
:,CONCENTRATION
xMeasurement�
;' Frequency=t
Type',
t, Location s
,
Total Flow
MG
N/A
Annual
Footnote 3
SDO
Total Rainfall
inches
N/A
Annual
Footnote 3
N/A
Event Duration
minutes
N/A
Annual
Footnote 3
N/A
Total Suspended Solids
mg/L
N/A
Annual
Grab
SDO
COD
mg/L
N/A
Annual
Grab
SDO
Total Aluminum
mg/L
N/A
Annual
Grab
SDO
Total Cyanide
mg/L
N/A
Annual
Grab
SDO
Total Fluoride
mg/L
N/A
Annual
Grab
SDO
(ii.) Visual and Other Monitoring:
Visual monitoring requires a qualitative visual inspection of each stormwater outfall, regardless
of representative outfaIl status, for the purpose of evaluating the effectiveness of the Stormwater
Pollution Prevention Plan (SPPP) and assessing new sources of stormwater pollution. All visual
monitoring shall be documented and records maintained with the SPPP. No analytical tests are
required. Visual monitoring of stormwater outfalls does not need to be performed during a
representative storm event, but must be performed at all discharge outfall locations.
Documentation of the initial visual monitoring event during the term of the permit shall be
submitted along with the required analytical monitoring data.
HARGE
cMcOurN.I.TEMS ExNu'T.' S�
RIAd'i:RE-!rQ
r6
Mz u
M
sUI.YR
-Sampler ;,;Samples.
K z. �:..•`.;.
r ; CHAR,4C ERISTICS;
Frequencya° ,
, §aType�S
a,,Locatian 4: ;
Color
Annual
Visual
SDO
Odor
Annual
Olfactory
SDO
Clarity
Annual
Visual
SDO
Floating Solids
Annual
Visual
SDO
Suspended Solids
Annual
Visual
SDO
Foam
Annual
Visual
SDO
Oil Sheen
Annual
Visual
SDO
Other obvious indicators of
Annual
Visual
SDO
stormwater pollution
(b.) For purposes of the stormwater sampling required in this permit, all samples shall be collected from a
discharge resulting from a representative storm event (See Part 1, Condition B.(2.), Stormwater
Definitions). Failure to monitor storm events in accordance with the specified frequency shall
constitute a violation of this permit.
PART I, Page 8 of 19

Permit No. NCO004308
Footnotes, A.(8.)
1. Monitoring Frequency (Analytical): Once per year with samples taken during the sampling window of April
through November.
2. Sample locations (Analytical): SDO - Samples to be taken at each stormwater discharge outfall (SDO) unless
representative outfall status is granted. If a facility has multiple discharge locations with substantially identical
stormwater discharges that are required to be sampled, the Permittee may petition the Director for
representative outfall status. if it is established that the stormwater discharges are substantially identical and the
Permittee is granted representative outfall status, then sampling requirements may be performed at a reduced
number of outfalls.
3. For each sampled representative storm event the total precipitation, storm duration, and total flow must be
monitored. Total flow shall be either; (a) measured continuously, (b) calculated based on the amount of area
draining to the outfall, the amount of built -upon (impervious) area, and the total amount of rainfall, or (c)
estimated by the measurement of flow at 20-minute intervals during the rainfall event.
4. Monitoring Frequency (Visual and Other): The first visual monitoring event during the term of the permit must
be performed during the initial analytical monitoring event.
5. Sample Type and Location (Visual and Other): Visual monitoring requires a qualitative visual observation of
each Stormwater Discharge Outfall (SDO). No analytical testing or sampling is required. j
PART I, Page 9of19

rOR SETTLEMENT PURPOSES ONLY
Permit No. NC0004308
(a,"}yIi-_1"1�- -L C.IIC-L LS4�RLiLC VfL3 iI�pCil�T�CSTCaITic .th
tion ��-�1�y"iCl-ateo
s peirnit, the Yer-mittee is authorized to tkeAlcea
_NT�.�ni RAITAT10 i.S
MON I;-GRING-REQUIREMENTS
PA[-AME-ER
y Weekly Daily
Average AA eF z AAax+i,,Wttm
AAeasurem6n � p Sarriple
Erequear4 L-ecallan 7
Flew
*t E
0F 4'7aCiLC
Weekly Gfab E
Tetal Aluff►ir urn
Weekly Gfiib E
TetN F'uefide
23.9 Fflg
Week' Grab E
Total CyaRide-3
46
Weekly fi--ab E
Weekly Gfab E
o n ..tanda,.�l u ..ot.- at all tmFnes
�-:v-arena '
Aeate exle+ -4I
Qea� Gfab E
if fix tkt�rit fc�stlils-i'r�.� t ttiedischarge has h tti")-it t-i consists 1ee...fl ter
�er }c,i—c�iii ii,,,,A-1 orabl,
Mooresville
y, �,t�f�ttcti-Office, Su-!face�A7a ter- Quality T�.... �� 14-ogf a � �'�of the ricchar-ge
�the
btts'I�cit-is, _ im o olkrc o ciicZd--harge
The Per-mittee shall report its the appropniall-e- Diisehavge Monitoring Report
(I)MR) ( ' ii ;
being taken to eliminate flie disEhar-ge and prevent future disi I
4.9aniple locations: 1; Effluent.
2L.l'c-r-t-he des of this . ,;t a Calendar week shall be5ttfficieFlt, cielerrttiile a
t ge-"nILW.
saniple tested. Wov-,evev, fei- the PHFpE)5e of coinpliance with this peniiit� the Ejuantitatien limit f0v'Fefal ('lranicle
4-.Aeu4eToxicity (Fathead aa; n ut., defi ;l: refi, OdnUdFY M di n. ;1 june, I..r. c,.,t, -Hb
a++d-Or-tebeir-lDecefnber�CoFo-(;z �Av.+ae l O* 14h, MooiIG44-ems-
12

FOR SETTLEMENT PURPOSES ONLY
Permit No. N00004P08
A. 8. STORMWATER MONITORING REQUIREMENTS - OutfaIls 017, 018, & 020
(a.) During the period beginning on the effective date of this permit and lasting until the expiration date of
this permit, the Permittee is authorized to discharge stormwa ter at Outfalls 017, 018, and 020 subject
to the following effluent limitations and monitoring requirements.
(i.) Analytical Monitoring:
STORMWATER DISCHARGE
UNITS
CUT-OFF
MONITORING REQUIREMENTS
Measurement
Sample
Sample
CHARACTERISTICS
CONCENTRATION
Frequency'
Type
Location 2
Total Flow
MG
N/A
Annual
Footnote 3
SDO
Total Rainfall
inches
N/A
Annual
Footnote 3
N/A
Event Duration
minutes
N/A
Annual
Footnote 3
N/A
Total Suspended Solids
mg/L
N/A
Annual
Grab
SDO
COD
mg/L
N/A
Annual
Grab
SDO
Total Aluminum
mg/L
N/A
Annual
Grab
SDO
Total Cyanide
mg/L
N/A
Annual
Grab
SDO
Total Fluoride
mg/L
N/A
Annual
Grab
SDO
(ii.) VisuaI and Other Monitoring:
Visual monitoring requires a qualitative visual inspection of each stormwater outfall, regardless
of representative outfall status, for the purpose of evaluating the effectiveness of the Stormwater
Pollution Prevention Plan (SPPP) and assessing new sources of stormwater pollution. All visual
monitoring shall be documented and records maintained with the SPPP. No analytical tests are
required. Visual monitoring of stormwater outfalls does not need to be performed during a
representative storm event, but must be performed at all discharge outfall locations.
Documentation of the initial visual monitoring event during the term of the permit shall be
submitted along with the required analytical monitoring data.
STORMWATER DISCHARGE
MONITORING REQUIREMENTS
Measurement
Sample
Sample
CHARACTERISTICS
Frequency 4
Type 5
Location 5
Color
Annual
Visual
SDO
Odor
Annual
Olfactory
SDO
Clarity
Annual
Visual
SDO
Floating Solids
Annual
Visual
SDO
Suspended Solids
Annual
Visual
SDO
Foam
Annual
Visual
SDO
Oil Sheen
Annual
Visual
SDO
Other obvious indicators of
Annual
Visual
SDO
stormwater pollution
(b.) For purposes of the stormwater sampling required in this permit, all samples shall be collected from a
discharge resulting from a representative storm event (See Part I, Condition 13.(2.), Stormwater
Definitions). Failure to monitor storm events in accordance with the specified frequency shall
constitute a violation of this permit.
13

150k SETTLEMENT PURPOSES ONLY
Permit No. NC0004308
Footnotes, A. 8. A49:-)-:
1. Monitoring Frequency (Analytical): Once per year with samples taken during the sampling window of April
through November.
2. Sample locations (Analytical): SDO - Samples to be taken at each stormwater discharge outfall (SDO) unless
representative outfall status is granted. If a facility has multiple discharge locations with substantially identical
stormwater discharges that are required to be sampled, the Permittee may petition the Director for
representative outfall status. If it is established that the stormwater discharges are substantially identical and the
Permittee is granted representative outfall status, then sampling requirements maybe performed at a reduced
number of outfalls.
3. For each sampled representative storm event the total precipitation; storm duration, and total flow must be
monitored. Total flow shall be either; (a) measured continuously, (b) calculated based on the amount of area
draining to the outfall, the amount of built -upon (impervious) area, and the total amount of rainfall, or (c)
estimated by the measurement of flow at 20-minute intervals during the rainfall event.
4. Monitoring Frequency (Visual and Other): The first visual monitoring event during the term of the permit must
be performed during the initial analytical monitoring event.
5. Sample Type and Location (Visual and Other): Visual monitoring requires a qualitative visual observation of
each Stormwater Discharge Outfall (SDO). No analytical testing or sampling is required.
14

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JuV, Zoo+

Permit No. NCO004308
SECTION B - STORMtiVATER MANAGEMENT REQUIREMENTS
B.(1.) STORMWATER POLLUTION PREVENTION PLAN
The Permit -tee shall update on an annual basis a Stormwater Pollution Prevention PIan, hereinafter referred
to as the Plan. This Plan shall be considered public information in accordance with Part II, Standard
Conditions, of this permit. The Plan shall include, at a minimum, the following items:
(a.) Site Plan. The site plan shall provide a description of the physical facility and the potential pollutant
sources which may be expected to contribute to contamination of stormwater discharges. The site
plan shall contain the following:
(i.) A general location map (USGS quadrangle map or appropriately drafted equivalent map),
showing the facility's location in relation to transportation routes and surface waters, the name
of the receiving water(s) to which the stormwater outfall(s) discharges, or if the discharge is to a
municipal separate storm sewer system, the name of the municipality and the ultimate receiving
waters; and accurate latitude and longitude of the point(s) of discharge.
(ii.) A narrative description of storage practices, Ioading and unloading activities, outdoor process
areas, dust or particulate generating or control processes, and waste disposal practices.
(iii.) A site map drawn to scale with the distance legend indicating location of industrial activities
(including storage of materials, disposal areas, process areas and loading and unloading areas),
drainage structures, drainage areas for each outfall and activities occurring in the drainage area,
building locations and impervious surfaces, and the percentage of each drainage area that is
impervious. For each outfall, a narrative description of the potential pollutants which could be
expected to be present in the stormwater discharge.
(iv.) A list of significant spills or Ieaks of pollutants that have occurred at the facility during the 3
previous years and any corrective actions taken to mitigate spill impacts.
(v.) Certification that the stormwater outfalls have been evaluated for the presence of non-
stormwater discharges. The certification statement will be signed in accordance with the
requirements found in Part II, Standard Conditions, of this permit.
(b.) Stormwater Management Plan. The stormwater management plan shall contain a narrative
description of the materials management practices employed which control or minimize the exposure
of significant materials to stormwater, including structural and nonstructural measures. The
stormwater management plan, at a minimum, shall incorporate the following:
(i.) A study addressing the technical and economic feasibility of changing the methods of operations
and/or storage practices to eliminate or reduce exposure of materials and. processes to
stormwater. Wherever practicable the Permittee shall cover all storage areas, material handling
operations, manufacturing or fueling operations to prevent materials exposure to stormwater.
In areas where elimination of exposure is not practicable, the stormwater management plan shall
document the feasibility of diverting the stormwater runoff away from areas of potential
contamination.
(ii.) A schedule to provide secondary containment for bulk storage of liquid materials, storage of
Section 313 of Title III of the Superfund Amendments and Reauthorization Act (SARA) water
priority chemicals, or storage of hazardous materials to prevent Ieaks and spills from
contaminating stormwater runoff. If the secondary containment devices are connected directly
to stormwater conveyance systems, the connection shall be controlled by manually activated
valves or other similar devices [which shall be secured with a locking mechanism] and any
stormwater that accumulates in the containment area shall be at a minimum visually observed
for color, foam, and visible sheens, prior to release of the accumulated stormwater.
Accumulated stormwater shall be released if found to be uncontaminated. Records
documenting the individual making the observation, the description of the accumulated
stormwater and the date and time of the release shall be kept for a period of five years.
(iii.) A narrative description shall be provided of Best Management Practices (BMPs) to be considered
such as, but not limited to, oil and grease separation, debris control, vegetative filter strips,
infiltration and stormwater detention or retention, where necessary. The need for structural
PART I, Page 10 of 19

Permit No. NC0004308
BMPs shall be based on the assessment of potential of sources to contribute significant quantities
of pollutants to stormwater discharges and data collected through monitoring of stormwater
discharges.
(iv.) Inspection schedules of stormwater conveyances and controls and measures to be taken to Iimit
or prevent erosion associated with the stormwater systems.
(c.) Spill Prevention and Response Plan. The Spill Prevention and Response Plan shall incorporate a risk
assessment of potential pollutant sources based on a materials inventory of the facility. The facility
personnel (or team) responsible for implementing the plan shall be identified in the plan. At least one
of these designated personnel shall be on -site or available at all times during facility operations that
have the potential to contaminate stormwater runoff through spills or exposure of materials associated
with the facility operations.
(d.) Preventative Maintenance and Good Housekeeping Program. A preventative maintenance program
shall be developed. The program shall document schedules of inspections and maintenance activities
of stormwater control systems, plant equipment and systems. Inspection of material handling areas
and regular cleaning schedules of these areas shall be incorporated into the program.
(e.) Employee Training_ Training schedules shall be developed and training provided at a minimum on
an annual basis on proper spill response and cleanup procedures and preventative maintenance
activities for all personnel involved in any of the facility's operations that have the potential to
contaminate stormwater runoff. The facility personnel (or team) responsible for implementing the
training shall be identified in the Plan.
(f.) Designated Personnel. The Stormwater Pollution Prevention Plan shall identify one or more specific
positions responsible for the overall coordination, development, implementation, and revision to the
Plan. Responsibilities for all components of the Plan shall be documented and position assigrunents
provided.
(g.) Plan Amendment. The Permittee shall amend the Plan whenever there is a change in design,
construction, operation, or maintenance which has a significant effect on the potential for the
discharge of pollutants to surface waters. The Stormwater Pollution Prevention Plan shall be
reviewed and updated on an annual basis.
The Director may notify the Permittee when the Plan does not meet one or more of the minimum
requirements of the permit. Within 30 days of such notice, the Permittee shall submit a time schedule
to the Director for modifying the Plan to meet minimum requirements. The Permittee shall provide
certification in writing (in accordance with Part II, Standard Conditions, of this permit) to the Director
that the changes have been made.
(h.) Facili . Inspections. Inspections of the facility and all stormwater systems shall occur at a minimum
on a semiannual schedule, once in the fall (September -November) and once during the spring (ApriI-
June). The inspection and any subsequent maintenance activities performed shall be documented,
recording date and time of inspection, individual(s) making the inspection and a narrative description
of the facility's stormwater control systems, plant equipment and systems. Records ofthese
inspections shall be incorporated into the Stormwater Pollution Prevention Plan.
Visual monitoring as required in Part I, Condition A.(9.), Stormwater Requirements (Outfalls 017, 018,
020), shall be performed in addition to facility inspections.
(i.) Implementation. Implementation of the plan shall include documentation of all monitoring,
measurements, inspections and maintenance activities and training provided to employees, including
the log of the sampling data and of activities taken to implement BMPs associated with the industrial
activities, including vehicle maintenance activities" Such documentation shall be kept on -site for a
period of five years and made available to the Director or his authorized representative immediately
upon request.
B.(2.) STORMWATER DEFINITIONS
(a.) Best Management Practices (BMPs)
PART I, Page 11 of 19

Permit No. NCO004308
Schedules of activities, prohibitions of practices, maintenance procedures, and other management
practices to prevent or reduce the pollution of waters of the United States. BMPs also include
treatment requirements, operation procedures, and practices to control plant site runoff, spillage or
leaks, sludge_or waste disposal, or drainage from raw material storage.
(b.) Bulk Storage of Liquid Products
Liquid raw materials, manufactured products, waste materials or by-products with a single above
ground storage container having a capacity of greater than 660 gallons or with multiple above ground
storage containers having a total storage capacity of greater than 1,320 gallons.
(c.) Coal Pile Runoff
The rainfall runoff from or through any coal storage pile.
(d.) Landfill
A disposal facility or part of a disposal facility where waste is placed in or on land and which is not a
land treatment facility, a surface impoundment, an injection well, a hazardous waste long-term
storage facility or a surface storage facility.
(e.) Point Source Discharge
Any discernible, confined and discrete conveyance, including but specifically not limited to, any pipe,
ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, or concentrated animal
feeding operation from which pollutants are or may be discharged to waters of the state.
(f.) Representative Storm Event
A storm event that measures greater than 0.1 inches of rainfall and that is preceded by at least 72
hours in which no storm event measuring greater than 01 inches has occurred. A single storm event
may contain up to 10 consecutive hours of no precipitation. For example, if it rains for 2 hours without
producing any collectable discharge and then stops, a sample may be collected if a rain producing a
discharge begins again within the next 10 hours.
(g.) Runoff Coefficient
The fraction of total rainfall that is not infiltrated into or otherwise retained by the soil, concrete,
asphalt or other surface upon which it falls that will appear at the conveyance as runoff.
(h.) Secondary Containment
Spill containment for the contents of the single largest tank within the containment structure plus
sufficient freeboard to allow for the 25-year, 24-hour storm event.
(i.) Section 313 Water Priori Chemical
A chemical or chemical category which:
(i.) Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund Amendments and
Reauthorization Act (SARA) of 1986, also titled the Emergency Planning and Community Right -
to -Know Act of 1986;
(ii.) Is present at or above threshold levels at a facility subject to SARA title III, Section 313 reporting
requirements; and
(iii.) That meet at least one of the following criteria:
(iv.) Is listed in appendix D of 40 CFR part 122 on either Table II (organic priority pollutants), Table
III (certain metals, cyanides, and phenols) or Table IV (certain toxic pollutants and hazardous
substances);
(v.) Is listed as a hazardous substance pursuant to section 311(b)(2)(A) of the CWA at 40 CFR 116.4;
or
(vi.) Is a pollutant for which EPA has published acute or chronic water quality criteria.
Significant Materials
PART I, Page 12 of 19

Permit No. NC0004308
Includes, but is not limited to: raw materials; fuels; materials such as solvents, detergents, and plastic
pellets; finished materials such as metallic products; raw materials used in food processing or
production; hazardous substances designated under section 101(14) of CERCLA; any chemical the
facility is required to report pursuant to -section 313 of Title -III of SARA; fertilizers; pesticides; and
waste products such as ashes, slag and sludge that have the potential to be released with stormwater
discharges.
(k.) Significant Spills ,
Includes, but is not limited to: releases of oil or hazardous substances in excess of reportable quantities
under section 311 of the Clean Water Act (Ref: 40 CFR 110.10 and CFR 117.21) or section 102 of
CERCLA (Ref: 40 CFR 302.4).
(1.) Stormwater Runoff
The flow of water which results from precipitation and which occurs immediately following rainfall or
as a result of snowmelt.
(m.) Stormwater Associated with Industrial Activity
The discharge from any point source which is used for collecting and conveying stormwater and
which is directly related to manufacturing, processing or raw material storage areas at an industrial
site. The term does not include discharges from facilities or activities excluded from the NPDES
program.
The following categories of facilities are considered to be engaging in "industrial activity":
(i.) Facilities subject to stormwater effluent limitations guidelines, new source performance
standards, or toxic pollutant effluent standards under 40 CFR Subchapter N Parts 400 - 471
(except facilities which are exempted under (k) of this definition);
(ii.) Facilities classified as Standard Industrial Classifications 24 (except 2434), 26 (except 265 and
267), 28, 29, 30, 311, 32, 33, 3441, 373;
(iii.) Facilities classified as Standard Industrial Classifications 10 through 14 (mineraI industry)
including active or inactive mining operations (except for areas of coal mining operations
meeting the definition of a reclamation area under 40 CFR 434.11(1)) and oil and gas exploration,
production, processing, or treatment operations, or transmission facilities that discharge
stormwater contaminated by contact with or that has come in contact with, any overburden, raw
material, intermediate products, finished products, byproducts or waste products located on the
site of such operations; inactive mining operations are mining sites that are not being actively
mined, but which have an identifiable owner/operator;
(iv.) Hazardous waste treatment, storage, or disposal facilities, including those that are operating
under interim status or a permit under Subtitle C of RCRA;
(v.) Landfills, land application sites, and open dumps that receive or have received any industrial
wastes (waste that is received from any of the facilities described under this definition) including
those that are subject to regulation under Subtitle D of RCRA;
(vi.) Facilities involved in the recycling of materials, including metal scrapyards, battery reclaimers,
salvage yards and automobile junkyards, including but limited to those classified as Standard
Industrial Classification 5015 and 5093;
(vii.) Steam electric power generating facilities, including coal handling sites;
(viii.) Transportation facilities classified as Standard Industrial Classifications 40, 41, 42, 44, and 45
which have vehicle maintenance shops, equipment cleaning operations, or airport deicing
operations. Only those portions of the facility that are either involved in vehicle maintenance
(including vehicle rehabilitation, mechanical repairs, painting, fueling and lubrication),
equipment cleaning operations, airport deicing operations, or which are otherwise identified
under (a)-(g) or (i)-(k) of this definition are associated with industrial activity;
(ix.) Treatment works treating domestic sewage or any other sewage sludge or wastewater treatment
device or system, used in the storage treatment, recycling, and reclamation of municipal or
domestic sewage, including lands dedicated to the disposal of sewage sludge that are located
PART I, Page 13 of 19

• , Permit No. NC0004308
within the confines of the facility, with a design flow of 1.0 MGD or more, or required to have an
approved pretreatment program under 40 CFR part 403. Not included are farm lands, domestic
gardens or Iands used for sludge management where sludge is beneficially reused and which are
not physically located in the confines of the facility, or areas that are'in compliance with section
405 of the CWA;
(x.) Construction activity including clearing, grading and excavation activities except: operations
that result in the disturbance of less that five acres of total land area which are not part of a
larger common plan of development or sale;
(xi.) Facilities under Standard Industrial CIassifications 20, 21, 22, 23, 2434, 25, 265, 267, 27, 283, 285,
30, 31 (except 311), 323, 34 (except 3441), 35, 36, 37 (except 373), 38, 39, 4221-25, (and which are
not otherwise included within (a)-O) of this definition).
For the categories of industries identified in (a) through 0) of this definition the term includes, but is
not limited to, stormwater discharges from industrial plant yards; immediate access roads and rail
lines used or traveled by carriers of raw materials, manufactured products, waste material, or by-
products used or created by the facility; material handling sites; refuse sites; sites used for the
application or disposal of process wastewaters; sites used for the storage and maintenance of material
handling equipment; sites used for residual treatment, storage, or disposal; shipping and receiving
areas; manufacturing buildings; storage areas (including tank farms) for raw materials, and
intermediate and finished products; and areas where industrial activity has taken place in the past and
significant materials remain and are exposed to stormwater. For the categories of industries identified
in (k), the term includes only stormwater discharges from all areas Iisted in the previous sentence
(except access roads) where material handling equipment or activities, raw material, intermediate
products, final products, waste material, by-products, or industrial machinery are exposed to
stormwater.
Material handling activities include the: storage, Ioading and unloading, transportation, or
conveyance of any raw material, intermediate product, finished product, by-product or waste product.
The term excludes areas located on plant lands separated from the plant's industrial activities, such as
office buildings and accompanying parking lots as long as the drainage from the excluded areas is not
mixed with stormwater drained from the above -described areas.
Industrial facilities (including industrial facilities that are Federally or municipally owned or operated
that meet the description of the facilities listed in (a)-(k)) include those facilities designated under 40
CFR 122.26(a)(1)(v).
(n.) Ten Year Design Storm
The precipitation event of a duration which will produce the maximum peak rate of runoff for the
watershed of interest resulting from a rainfall event of an intensity expected to be equaled or
exceeded, on the average, once in ten years.
(o.) Total Flow
The flow corresponding to the time period over which the sample collection occurs. The total flow
calculated based on the size of the area draining to the outfall, the amount of the built -upon
(impervious) surfaces within the drainage area, and the total amount of rainfall occurring during the
sampling period.
(p.) Vehicle Maintenance Activity
Vehicle rehabilitation, mechanical repairs, painting, fueling, lubrication, vehicle cleaning operations,
or airport deicing operations.
(q.) Visible Sedimentation
Solid particulate matter, both mineral and organic, that has been or is being transported by water, air,
gravity, or ice from its site of origin which can be seen with the unaided eye.
(r.) Waste Pile
Any non -containerized accumulation of solid, non -flowing waste that is used for treatment or storage.
PART I; Page 14 of 19

Permit No. NC0004308 -
SECTION C - SPECIAL CONDITIONS
C.(1.) CHRONIC TOXICITY PASS/FAiL PERMIT LIMIT (Quarterly)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality
to Ceriodaphuia dubia at an effluent concentration of 16% at Outfall 012 or 90% at any other outfall.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the
"North Carolina Ceriodaph nia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent
versions or "North Carolina Phase 11 Chronic Whole Effluent Toxicity Test Procedure" (Revised -February
1998) or subsequent versions. Effluent samples for self -monitoring purposes must be obtained during
representative effluent discharge below all waste treatment. The tests will be performed once during each
calendar quarter (January -March, April -June, July -September and October -December).
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the
permit limit, then multiple -concentration testing shall be per€ormed at a minimum, in each of the two
following months as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the
highest concentration having no detectable impairment of reproduction or survival and the lowest
concentration that does have a detectable impairment of reproduction or survival. The definition of
"detectable impairment," collection methods, exposure regimes, and further statistical methods are specified
in the "North Carolina Phase lI Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) 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 THP313 for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be
sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch 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 quarter 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
Environmental Sciences Branch at the address cited above.
Should the Permittee fail to monitor during a month in which toxicity monitoring is required, monitoring
will be required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality 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.
PART 1, Page 15 of 19

Permit No. NCO004308
C.(2.) ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (Quarterly)
The permittee. shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North
Carolina Procedure Document entitled "Pass/Fail Methodology -For Determining Acute Toxicity In A Single
Effluent Concentration" (Revised-July,1992 or subsequent versions). The monitoring shall be performed as
a Fathead Minnow (Pimephales promelas) 24-hour static test. The effluent concentration at which there
may be at no time significant acute mortality is 90% (defined as treatment two in the procedure document).
Effluent samples for self -monitoring purposes must be obtained during representative effluent discharge
below all waste treatment. The tests will be performed once during each calendar quarter (January -March,
April -June, July -September and October -December).
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGE6C.
Additionally, DWQ Form AT-2 (original) is to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than
30 days after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. 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 the period 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
Environmental Sciences Branch at the address cited above.
Should any single monitoring event indicate a failure to meet specified limits, then monthly monitoring will
begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement
will revert to the frequencies specified above.
Should the permittee fail to monitor during a period in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly
test requirement will revert to the frequencies specified above.
Should any test data from either these monitoring requirements or tests performed by the North Carolina
Division of Water Quality 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 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.
C.(3.) ACUTE TOXICITY MONITORING (Quarterly)
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined as definitive in
E.P.A. Document EPA/ 600/4-90/ 027 entitled "Methods for Measuring the Acute Toxicity of Effluents to
Freshwater and Marine Organisms." The monitoring shall be performed as a Fathead Minnow (Pimephales
promelas) 24-hour static test. Effluent samples for self -monitoring purposes must be obtained during
representative effluent discharge below all waste treatment. The tests will be performed on a discharge
event during each calendar quarter (January -March, April -June, July -September and October -December).
PART I, Page 16 of 19

Permit No. NC0004308 ,
The parameter code for this test is TAE6C. All toxicity testing results required as part of this permit
condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it was performed,
using the appropriate parameter code. Additionally, DWQ Form AT-1 (original) is to be sent to the
following address:
Attention: Environmental Sciences Branch
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than
30 days after the end of the reporting period for which the report is made
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. 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 quarter 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 FIow" in the comment area of the form. The report shall be submitted to the
Environmental Sciences Branch at the address cited above.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality 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 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.
C.(4.) ACUTE TOXICITY MONITORING (Annual)
The permittee shall conduct annual toxicity tests using protocols defined as definitive in E.P.A. Document
EPA/600/4-90/027 entitled "Methods for Measuring the Acute Toxicity of Effluents to Freshwater and
Marine Organisms." The monitoring shall be performed as a Fathead Minnow (Pirnephales promelas) 24-hour
static test. Effluent samples for self -monitoring purposes must be obtained below all waste treatment. The
permittee will conduct one test annually, with the annual period beginning in January of the calendar year
of the effective date of the permit.
The annual toxicity test must be performed by June 30. Should there be no discharge of flow from the
facility during the six month period January 1-June 30, 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 in the comments section indicate "No Flow for January 1-June 30, {calendar year)." The report
must be signed and submitted to the Environmental Sciences Section at the address noted below.
If no discharge event occurs from January 1-June 30, yet a discharge event occurs from July 1-December
31, then the facility must perform toxicity monitoring and report the data as noted below.
The parameter code for this test is TAE6C. All toxicity testing results required as part of this permit
condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it was performed,
using the appropriate parameter code. Additionally, DWQ Form AT-1(original) is to be sent to the
following address:
Attention: Environmental Sciences Branch
PART I, Page 17 of 19

Permit No. NC0004308
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental 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 and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of
the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the
waste stream.
Should any test data from either these monitoring requirements or tests performed by the North Carolina
Division of Water Quality 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 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.
C.(5.) BIOCIDES
(a.) The Permittee shall not use any biocides except those specifically approved by the Director and only
according to the terms and conditions of such approval. The addition of chromium, copper, or zinc is
specifically prohibited except as components of biocidal compounds approved for use at this facility.
(b.) Approved biocides shall consist of those approved in conjunction with the current permit application
and others subsequently approved by the Director. The Division may withdraw its approval for any
biocides when it considers such action necessary to protect water quality in the receiving stream.
The Permittee shall notify the Director in writing not later than ninety (90) days prior to the planned use of
any additional biocide that may be toxic to aquatic life. Such notification shall include submittal of a
completed Biocide Worksheet Form 101 and a map locating the discharge point and receiving stream.
PART I, Page 18 of 19

Re: alcoa -badin works - obl
Subject: Re: alcoa - badin works - obl
From: Rob McDaniel <[e-mail]>
Date: Tue, 11 Dec 2007 15:24:35 -0500
To: Mike Templeton <[e-mail]>
CC: BUD MCCARTY <[e-mail]>
Mike,
Alcoa approached the Hazardous Waste Section in July 2006 regarding a permitting
issue with stormwater runoff from the Old Brick Landfill. We participated in a
conference call with Alcoa and thE:ir consultant on July 17th concerning issues at the
Old Brick Landfill. Since the Old Brick Landfill is a RCRA solid waste management
unit, Alcoa wanted to discuss the proposed work at the landfill, determine if we had
any concerns with the proposed activities or any impacts on the unit, and to provide
a few diagrams of the proposed work. It was our understanding that the approval of
the design and the work was to be conducted under the authority of the Division of
Water Quality.
The Old Brick Landfill is listed as a solid waste management unit in Alcoa's
Hazardous Waste Management Permit. Therefore, Alcoa is responsible and must address
any hazardous constituents originating from the landfill above the applicable
standards or background levels for that constituent.
If you have any questions or concerns, please feel free to contact me.
Rob McDaniel
Mike Templeton wrote:
Rob -
Alcoa's NPDES permit has requirements for a discharge from the Old Brick Landfill,
designated as Outfall 019. The discharge was long treated as a stormwater
discharge, and the permit required monitoring but had no discharge limits. In the
late '90s, Alcoa discovered a seep coming from the landfill, and their monitoring
showed CN and F in significant concentrations (three samples, 2000-2002: approx.
300 ug/L CN, 15 mg/L F). The permit we issued in Sep 2006 (now contested) has
limits for CN and F, calculated to protect surface water quality standards.
Alcoa proposes to rework the cap on the OBL to prevent stormwater from entering
the waste matrix, thereby eliminating the leachate seep. They would also add an
infiltration pond to capture stormwater runoff and eliminate the discharge to
surface waters altogether. The information I have was submitted in early October,
and it is possible that Alcoa has completed these improvements by now.
Alcoa suggests that with these improvements there will be no discharge to surface
waters from the OBL and requests that DWQ remove Outfall 019 from the NPDES
permit. I am not aware of anyone in DENR approving the design of these
improvements or otherwise agreeing that this will eliminate the direct or indirect
discharge of pollutants from the landfill to surface waters. Alcoa's proposal does
not suggest how they will verify that the seep has been eliminated.
Before DWQ responds to Alcoa, I need to check with you. Has DWM reviewed the
design of these improvements? If so, have you approved them? And are you satisfied
that the new cap will sufficiently control the seep? If the seep continues at some
level, are you concerned about potential exceedance of GW standards? Have you
verified that the pond is sufficiently sized to provide containment up to and
including the 25-yr 24-hr storm event? Do you have any issue with this SWMU not
having coverage under an NPDES permit?
If Alcoa has eliminated the discharge of pollutants at this site, I am willing to
I of 2

Re: alcoa - badin works - obl
recommend we drop the outfall from our permit. At this point, I am looking for
assurances that they have or will eliminate the seep.or that, if'it continues
after we drop the outfall, it will be regulated under RCRA.
Thanks for your help.
- Mike Templeton
Michael E. Templeton, P.E.
Point Source Branch/ NPDES Permits
Surface Water -Protection Section
NCDENR- DWQ Raleigh, NC
Tel: [phone] x541
Fax: [phone]
2 of 2 _f

RE: Alcoa NPDES Appeal -
Subject: RE: Alcoa NPDES Appeal -
From: "Dworek, Rick" <[e-mail]>
Date: Fri, 10 Aug 2007 10:57:15 -0400
To: "Dunn, Nancy" <[e-mail]>
CC: "Mike Templeton" <[e-mail]>, "David Berry" <[e-mail]>, "McCaskill, William
L." <[e-mail]>, "Gross, Robyn L." <[e-mail]>, "Gibson, Z. Tommy"
<[e-mail]>
Nancy,
Given that the current discovery and hearing deadlines are approaching,
I thought I would send this settlement proposal to you now so you and -
Mike could review while we look for a time to discuss things. After A
spending a lot of time internally discussing the permit, our appeal and
the curtailed state of Badin's operations, we've reached a decision that
the best approach in addressing the groundwater I/I issue is to focus
our efforts and resources preventing the discharges from occurring, v,a9
(e.g., through our slip -lining project), and if we are successful in
those efforts (which we believe we will be), then we can live within the ek
framework of the originally -issued. With that in mind, we are attaching
hereto a second proposed offer of settlement in the form of proposed
modifications to the permit.
As you will see, we've taken the groundwater I/I issue off the table, C
and have agreed to accept the permit as it was originally issued / o•
regarding that issue. We are also requesting NCDENR recognize a
stormwater only scenario at outfall 011 (e.g., an S11) since that is'�
merely the overflow from 012, and the permit already provides for a�v
stormwater-only scenario for 012. Similarly, we are asking the NCDENR
to recognize a stormwater only scenario at 019, because we've stopped
the groundwater seepage from the Old Brick Landfill, and therefore, this p�
outfall discharges only stormwater. Last, we are requesting that"'
outfall 021 be deleted from the permit because we no longer discharge,�`t,
nor have any further need to discharge, from this outfall. The
groundwater seepage from the Alcoa Badin landfill is being collected and S
directed to the local publicly -owned treatment works.���
We've maintained some of our prior proposed revisions, like the O&G
f monitoring and limits at 005, which we discussed and believe settled in ,A
/ principle during our meeting this past January, and the daily max limit
J for fluoride at outfall 013 which Mike already reran the RPE calculation
to show that that limit was not warranted.
We believe we've presented a real opportunity for both parties to o� p
resolve this matter without the need for a hearing. We hope you agree
with us, as we've really taken a hard look at the permit and the state )©�
of our operations, to put as good a deal on the table as we can. We a?R'
appreciate your and DENR's continued consideration of "this matter, and
look forward to your response.
7
Please be in touch as soon as possible. Again, we are running up
against the September 17, 2007 discovery deadline. Thank you`1,�,1-�'�
Regards,
Rick Dworek, Esq.
Counsel �,� �p� r�t
Alcoa Inc. p
201 Isabella Street I� °)-
Pittsburgh, PA 15212-5858
a
1 of 2

RE: Alcoa NPDES Appeal -
Office: 412-553-3596
Fax: [phone]
ACTNET-225-3596
Mobile: [phone]
[e-mail]
-----Original Message -----
From: Dunn, Nancy [mailto:[e-mail]]
Sent: Monday, July 30, 2007 3:35 PM
To: Dworek, Rick
Cc: Mike Templeton
Subject: RE: Alcoa NPDES Appeal
Sure. Let me get in touch with Mike, as it would really save some time
to,have him here for the phone conference, and I'll let you know when we
can be available as soon as'I do.
-----Original Message -----
From: Dworek, Rick[mailto:[e-mail]]
Sent: Monday, July 30, 2007 3:12 PM
To: Dunn, Nancy
Cc: David Berry
Subject: Alcoa NPDES Appeal
Nancy,
Thank you for your letter dated June 29, 2007. Instead of responding
formally in writing, we thought all parties would be best served if
David and I gave you a call to discuss the issues and some developments
at Badin that impact the way in which we view the permit. We think that
with some decisions we've made internally, we may be able to settle the
appeal and'the permit conditions in relatively short order; at least
that is my hope. Could you let us know 2 or 3 time slots this week that
you would be available for us to call you. Once we've nailed down a day
and time, I'll send out calling instructions.
Regards,
Rick Dworek, Esq.
Counsel
Alcoa Inc.
201 Isabella Street
Pittsburgh, PA 15212-5858
Office: 412-553-3596
Fax: [phone]
ACTNET-225-3596
Mobile: [phone]
[e-mail]
Content -Description: Badin NPDES Permit Revisions
(version 2).doc
Badin NPDES Permit Revisions (version 2).doc Content -Type: applicationlmsword
Content -Encoding: base64
2 of2

FOR SVI-TLEMENT PURPOSES ONLY Permit No. NC0004308
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended,
Alcoa; Inc.
is hereby authorized to discharge wastewater from a facility located at the
Alcoa - Badin Works
NC Hwy. 740 & NCSR 1719
Stanly County
to receiving waters designated as Little Mountain Creek and Badin Lake (Yadkin River) in the Yadkin - Pee
Dee River Basin
in accordance with effluent Iimitations, monitoring requirements, and other conditions set forth in Parts 1, II,
III, and IV of this permit.
This permit shall become effective................................................................................................. No-vember 1, 2006
This permit and the authorization to discharge shall expire at midnight on ............................. l
Signed this day .................. September -25, 2906
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management
Commission

FOR SETTLEMENT PURPOSES ONLY Permit No. N00004M8
SUPPLEMENT TO PERMIT COVER SHEET
The authorihj to operate and discharge frorn this facility arises exclusively under the terms and conditions of this
NPDES Permit. Therefore, upon the effective date of this permit, any and all previous NPDES Permits issued for
this facility and bearing this permit number are revoked.
Alcoa, Inc.
is hereby authorized to:
1. Discharge the following:
• non -contact cooling and make-up waters, condensate, fire protection water, groundwater, and
stormwater at Outfall 002;
• non -contact cooling and make-up waters, condensate, fire protection water, groundwater, and
stormwater at Outfall 004;
• non -contact cooling water, condensate, fire protection water, groundwater, and stormwater at
Outfall 005;
• non -contact cooling water, condensate, fire protection water, groundwater, and stormwater at
OutfaIl 012 (and at Outfall 011 when flows exceed the capacity of the diffuser);
+ groundwater and stormwater at Outfall 013;
? • groundwater seepage from the Old Brick Landfill and stormwater at Outfall 019;
• groundwatseepage from the Alcoa Badin Landfill at Outfall 021; and
• stormwater at Outfalls 017, 018, and 020;
all outfalls being located at or near the Alcoa - Badin Works in Stanly County; and
2. Discharge such process and ancillary process wastewaters, groundwater, and stormwater from locations
specified on the attached map into an unnamed tributary to Little Mountain Creek (OutfaIls 004, 005,
017, 018, and 021) and into Badin Lake (Yadkin River) (Outfalls 002, 011, 012, 013, 019, 020) which are
classified as Class "C" waters and Class "WS-IV CA & B" waters, respectively, in the Yadkin -Pee Dee
River Basin.
All discharges shall be in accordance with the attached schedules as follows:
Part I: Monitoring, Controls, and Limitations for Permitted Discharges
A. Effluent Limitations and Monitoring Requirements
B. Stormwater Management
C. Special Conditions
Part 11: Standard Conditions for NPDES Permits
Part III• Other Requirements
Part IV: Special Conditions for Municipal Facilities
Any other point source discharge to surface waters of the state is prohibited unless covered by another
permit, authorization, or approval.
This permit does not relieve the Permittee from responsibility for compliance with any other applicable
federal, state, or local law, rule, standard, ordinance, order, judgment, or decree.
MM

EOk SETTLEMENT PURPOSES ONLY Permit No. NC0004308
0 ex tb SAP vi�
ill

FOR SETTLEMENT PURPOSES ONLY Permit No. NG0004308
I6T:1ta01
MONITORING, CONTROLS, AND LIMITATIONS FOR PERMITTED DISCHARGES
SECTION A - EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is
authorized to discharge wastewater and stormwater associated with the activities described in its current
NPDES permit application. Such discharges shall be monitored, controlled, and limited as specified below.
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 002/S02
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling and make-up waters, condensate, fire
protection waters, groundwater, and stormwater at Outfall 002/S02 subject to the following effluent
limitations and monitoring requirements:
(a.) Outfall 002. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling and make-up
waters, condensate, fire protection waters, orgroundwater.
PARAMETER.
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample
Sample
Average Average Maximum
Frequency
Type
Location'
Flow
Weekly
Instantaneous
E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month
Composite 2
E
pH
Shall remain within the range of 6.0 to
2/4onth
Grab
E
9.0 standard units at all times
Temperature (°C)
2/Month
Grab
E
Total Fluoride
Monthly
Composite 2
E
Total Residual Chlorine
Monthly
Grab
E
Acute Toxicity 3
Quarterly
Composite 2
E
(b.) Outfall 502. The following effluent Iimitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stormwater.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample Sample
Average Average Maximum
Frequency 4 Type Location
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
pH
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Footnotes, A.(1.) :
1. Sample locations: E - Effluent.
2, The Permittee may use time -proportionate compositing or other sampling method -provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
1 Acute Toxicity (Fathead Minnow) 24 hr. P/F ® 90%; quarterly (January -March, April -June, July -September, and
October -December); see Condition C.(2.), Acute Toxicity Permit Limit.
4. Monitoring should be performed during a representative storm event. See Condition B. (2), Stormwater
Definitions. Semi-annual means 2/Year, during January -June and July -December:

FOR SETTLEMENT PURPOSES ONLY
Permit No. NCO004308
A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - OutfaIl 004/SO4
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling and make-up waters, condensate, fire
protection waters, groundwater, and stormwater at OutfaI1004/SO4 subject to the following effluent
limitations and monitoring requirements:
(a.) Outfall 004. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling and make-up
waters, condensate, fire protection waters, or groundwa ter.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample Type Sample
Average Average Maximum
Frequency
Location'
Flow
Weekly
Instantaneous
E
Total Residual Chlorine Z
17 ug/L
Weekly
Grab
E
Total Suspended Solids
2/Month
Composite 3
E
pH
Shall remain within the range of 6.0 to
2/Month
Grab
E
9.0 standard units at all times
Temperature (OC),
See Footnote 4
2/Month
Grab
E
Total Aluminum
Monthly
Composite 3
E
Total Cyanide
Monthly
Composite 3
E
Total Fluoride
Monthly
Composite 3
E
Temperature (°C)
See Footnote 4
Quarterly
Grab
U,D
(b.) Outfall SO4. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stonnwater.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS -
Monthly Weekly Daily
Measurement Sample
Sample Type
Average Average Maximum
Frequency s Location'
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
pH
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
'(c.) The Permittee shall obtain authorization from the Division of Water Quality prior to utilizing any
biocide in the cooling water. THERE SHALL BE NO CHROMIUM, ZINC, OR COPPER'ADDED TO
THE COOLING WATER EXCEPT IN THE FORM OF PRE -APPROVED ADDITIVES TO BIOCIDAL
COMPOUNDS. See Condition C.(5.), Biocides. �pS�
Footnotes, A.(2.)
1. Sample locations: E - Effluent, U - Upstream, D - Downstream.
2. The Total Residual Chlorine limit shall become effective on N,lzay 1, 21/08 eighteeri( I8]_months from the permit
effective date. The Department may re -open the final effluent limit based upon the results of a site -specific
X,Iethod Detection Limit (NIDL) study that Alcoa intends to conduct.
3. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
4. The discharge shall not cause the temperature of the receiving water to exceed 2.8°C above background and in
no case exceed 32°C.

FOR SETTLEMENT PURPOSES ONLY
Permit No, NCI0004308
5. Monitoring should be performed during a representative storm event. See Condition B. (2), Stormwater
Definitions. Semi-annual means 2/Year, during January -June and July -December.
3

FOR-SPY.`LEMENT PURPOSES ONLY
Permit No. NCO004308
A.(3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 005/S05
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling water, condensate, fire protection
waters, groundwater, and stormwater at Outfall 005/S05 subject to the following effluent limitations and
monitoring requirements;
(a.) Outfall 005. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling water,
condensate, fire protection waters, groundwater, or compressor condensate.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample
Sample
Average Average Maximum
Frequency
Type
Location'
Flow
Weekly
Instantaneous
E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month
Composite 2
E
n,� oo sc
39:9 Mg/ L L
h
Grab
E
Temperature (°C)
See Footnote 4
2/Month
Grab
E
pH
Shall remain within the range of 6.0 to
2/Month
Grab
E
9.0 standard units at all times
Total Aluminum
Monthly
Composite 2
E
Total Fluoride
Monthly
Composite 2
E
Total Cyanide
Monthly
Grab
E
Total Residual Chlorine
Monthly
Grab
E
Chronic Toxicity 3
Quarterly
Composite 2
E
(b.) Outfall S05. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stormwater.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample Sample
Average Average Maximum
Frequency 5 Type Location'
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
pH
Semi -Annually Grab E
(c.) The Permittee shall obtain authorization from the Division of Water Quality prior to utilizing any
biocide in the cooling water. THERE SHALL BE NO CHROMIUM, ZINC, OR COPPER ADDED TO
THE COOLING WATER EXCEPT IN THE FORM OF PRE -APPROVED ADDITIVES TO BIOCIDAL
COMPOUNDS. See Condition C.(5.), Biocides.
(d.) The Division may re -open this permit to modify these effluent limitations and monitoring
requirements if monitoring results indicate that the discharge has a reasonable potential to impact
receiving water quality.
Footnotes, A.(3.) :
1. Sample locations: E - Effluent.
2. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
3. Chronic Toxicity (Ceriodaphnia) P/F at 90%; quarterly (January -March, April -June, July -September, and
October -December); see Condition C.(1.) , Chronic Toxicity Permit Limit.
4. The discharge shall not cause the temperature of the receiving water to exceed 2.8°C above background and in
no case exceed 32°C. U,D monitoring for Outfall 004 shall be used to determine temperature changes at 004/005.
5. Monitoring should be performed during a representative storm event. See Condition B. (2.), Stormwater
Definitions. Semi-annual means 2/Year, during January -June and July -December.
-4

FOR SETTLEMENT PURPOSES ONLY
Permit No. NC0004308 �.
I .
A.(4.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfa11'011
(a.) During the period beginning on the effective date of this permit and Iasting until the expiration date of
this permit, the Permittee is authorized to discharge storm flows exceeding the Outfall 012 diffuser
capacity at Outfall 011 subject to the following effluent Iimitations-and monitoring requirements:
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly + Weekly Daily
Measurement
-Sample • .
Sample
PARAMETER
Average Average 2 Maximum
Frequency
Type
Location'
Flow
Quarterly
Instantaneous
E
Total Fluoride
Quarterly
Grab
E
Total Cyanide 3,4
46.6 ug/L
Quarterly
Grab
E
Oil & Grease
Quarterly
Grab
E
Total Suspended Solids
Sha"n'n
Quarterly
Grab
E
pH
Quarterly
Grab
E
at all o .
standard maiFl within unitse r g �.
--7-B i
Acutey
See Footnotes C-r
Amiu,*
Grab
E
(b.) Outfall SIL The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stonnwater exceeding the Out all 012
di user!'` Cc-p12_�
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly D ilY
Measurement Sample
Sample Type
Ayera a Average Maximum
Frep Location'
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Oil & Grease
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
pH
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
5

f0k SETY'LEMENT PURPOSES ONLY
Permit No. NC0004308
Footnotes, A.(4.)
1. Sample locations: E - Effluent.
2.' For the purposes of this permit, a minimum of one sample i a e s calendar week shall bufficient to determine a
parameter's "Weekly Average" value.
3. The Total Cyanide limit shall become effective ^• no thirh7-six (36) months from the permit
effective date.
4. The Permittee shall report on its Discharge Monitoring Reports the actual laboratory results for each effluent
sample tested. However, for the purpose of compliance with this permit, the quantitation limit for Total Cyanide
shall be defined as 10 ug/L, and the Division shall treat each reported value less than 10 ug/L as zero.
r^.•:..:t_. rr. Ir.., .d N.r. ., ,.� 141 E^": ^ .a^f;.,;.:,.^. �
, .= vl seer a:�; r r.4Acute
t' MINI aFillua -reported ., o esti+gig shall r•-...� �,.�rease to
Le.11f_LL51 i five .lerly tests dam, StFate nO tO ity rr (' 50 > "100%) tests sha 1LFe..ertei
�1 ✓ afIn . a-..-.11-LEffklel,E , ._he_4':ltE.--'_ ih2Lr.im mesh P .. tO testi.,,.
19

FOR SETTLEMENT PURPOSES ONLY
w
Permit No., T 40000i308
A.(5.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 012/S12
During the period beginning. on the effective date of this permit and lasting until the expiration date of this
permit, the Permittee is authorized to discharge non -contact cooling water, condensate, fire protection
waters, groundwater, and stonnwater at Outfall 012/S12 subject to the.folIowing effluent limitations and
monitoring requirements:
(a.) Outfall 012. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge contains any amount of non -contact cooling water,
condensate, fire protection waters, orgroundwater.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample Sample
Average Average Maximum
Frequency
Type
Location'
Flow
Weekly
Instantaneous
E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month
Composite 2
E
Oil & Grease
30.0 mg/L 60.0 mg/L
2/Month
Grab
E
Total Cyanide 3
434.0 ug/L
2/Month
Grab
E
pH
Shall remain within the range of 6.0 to
2/Month
Grab
E
9A standard units at all times
Total Aluminum
Monthly
Composite 2
E
Total Fluoride
Monthly
Composite 2
E
Total Residual Chlorine
Monthly
Grab
E
Chronic Toxicity 9
Quarterly
Composite 2
E
(b) Outfall S12. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of stonnwater.
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Sample
5 Sample Type
Average Average Maximum
Frequency Location'
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Oil & Grease
Semi -Annually Grab E
Total Cyanide
Semi -Annually Grab E
pH
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Footnotes, A.(5.) :
1. Sample locations: E - Effluent.
2. The Permittee may use time -proportionate compositing or other sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
3. The Permittee shall report on its Discharge Monitoring Reports the actual laboratory results for each effluent
sample tested. However, for the purpose of compliance with this permit, the quantitation limit for Total Cyanide
shall be defined as 10 ug/ L, and the Division shall treat each reported value less than 10 ug/L as zero.
4. Chronic Toxicity (Ceriodaphnia) P/F at 16%; quarterly (January -March, April -June, July -September, and
October -December); see Condition C.(1.), Chronic Toxicity Permit Limit.
5. Monitoring for these parameters should be performed during a representative storm event. See Condition B. (2),
Stormwater Definitions.

FOIL SEWLEMENT PURPOSES ONLY
Permit No. NCO004308
A.(6.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 013
(a.) During the period beginning on the effective date of this permit and Iasting until the expiration date of
this permit, the'Permittee is authorized to discharge groundwater and stonnwater at Outfall 013
subject to the following effluent limitations and monitoring requirements:
PARAMETER"
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
'Monthly ' Weekly z Daily
Average Average Maximum,
Measurement Sample Type Sample
Frequency Location
Flow
Weekly
Instantaneous
E
Total Suspended Solids
30.0 mg/L 60.0 mg/L
2/Month
Composite 3
E
Total Fluoride 4
1.8 mg/L 23.9 ffig/
2/Month
Composite 3
E
Total Cyanide
2/Month
Grab
E
pH
Shall remain within the range of 6.0 to
2/Month
Grab
E
9.0 standard units at all times
Total Aluminum
Monthly
Composite 3
E
Acute Toxicity
See Footnote 5
Quarterly
Composite 3
E
(b.) The Division may re -open this permit to modify these effluent limitations and monitoring
requirements if monitoring results indicate that the discharge has a reasonable potential to impact
receiving water quality or that this discharge consists of uncontaminated stormwater.
� ",tvL,
Footnotes, A.(6.)
1. Sample locations: E - Effluent.
2. For the purposes of this permit, a minimum of one sample in calendar week shall be sufficient to determine a
parameter's "Weekly Average" value.
3. - The Permittee may use time -proportionate compositing or Cher sampling method provided that the alternate
method yields samples that are reasonably representative of the discharge during the monitoring period.
4. The Total Fluoride limits shall become effective ^^1`I^.°^�•�•^' Anna thirty-six (36)_months from the permit
effective date.
5. Acute Toxicity (Fathead Minnow) 24 hr. P/F ® 90%; quarterly Qanuary-March, April -June, July -September, and
October -December); see Condition C.(2.), Acute Toxicity Permit Limit.

FOR SETTLEMENT PURPOSES ONLY
Permit No. N 00045OS'
a

fOR SET-kEMENT PURPOSES ONLY Permit No. NCO004308
A.(7.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 019 Sl9
During the period beginning on the effective date of this permit and lasting until the expiration date of this
permit, the Periruttee is authorized to discharge,groundzvater seeps-Ze from the Old Brick Land ill and
stormwater at Outfall 07.9/S1.9 subject to the following effluent limitations and monitoring requirements:
(a.) Outfall 019. The following effluent limitations and -monitoring req ui.rements shall ap plyBurin an
calendar month in which the discharge contains any amount of During the period beginn.*ig-an-tke
„ffeEfiye da f-this- t 'in�iand ra iig-Hnfii-t his �ri�tit, the n,, .,,:tE. ;
.,uth -;-,,,a-to aiseliatL e-groundwater seepage from the Old Brick Landfill and stonnwater. at Outfall
0! 9 subjeet-to the tc t�
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly Weekly Daily
Measurement Type Sample T Sample
p
Average Average Maximum
Frequency
Location
Flow
Quarterly
Instantaneous
E
Total Suspended Solids
Quarterly
Grab
E
Total Aluminum
Quarterly
Grab
E
Total Fluoride
Quarterly
Grab
E
Total Cyanide
Quarterly
Grab
E
pH
Shall remain within the range of 6.0 to
Quarterly
Grab
E
9.0 standard units at all times
Acute Toxicity
I Quarterly
Grab
E
CG)�W Outfall S19. The following effluent limitations and monitoring requirements shall apply during any
calendar month in which the discharge consists entirely of storniwater. The T)ivisien may re open 04is
E1,F Fl,.,.a ,,,,„:.i,.,,.aereaser►a131epeterttal-tee-f '#�-
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Measurement Sample Type Sample
Monthly Weekly Daily
Average Aygraae Maximum
Frequency Location
Flow
Semi -Annually Instantaneous E
Total Suspended Solids
Semi -Annually Grab E
Total Aluminum
Semi -Annually Grab E
Total Fluoride
Semi -Annually Grab E
Total Cyanid� �1,N. �►`
Semi -Annually Grab E
y C�p
� l r
kc-+) v afi a�
0-,�l� z i Vk
o,C,t\�v-
S 19 .
C t 2- S
,d P
f ) 1
W h�-�� '�- a�,,��].. �t1�1J'�l� i`I'Y"� '�. �+J`� �-�- � 1�'C.�4.("t�i�-- �� �� 5•t�' M W`��
(J
,►-a, V-e- o,�
{�i,�n.J� � �:n.. � exc�.�_a.-a.c� o�s�';-�.wn�� .�i=►•.-��4.

FOR SETTLEMENT PURPOSES ONLY
Permit No. MC0004; 0n 1
Footnotes, A.(7.) :
1. •Sample locations: E -Effluent.
2. Acute Toxicity (Fathead Minnow) monitoring, definitive; quarterly Qanuary-March, April -June, July -September,
and October -December); see Condition C.(3.), Acute Toxicity Monitoring.
11

Robert Prezbindowski
Alcoa Environmental
Tennessee Operations
2300 North Wright Rd
ALCOA Alcoa TN, 37701
Mr. Michael E. Templeton
Department of Environmental and Natural Resources
North Carolina Division of Water Quality
512 N. Salisbury St.
Raleigh, North Carolina 27604
UPS Next Day Air — 1 Z 314 411 22 1003 4772
Re: Alcoa Badin Works, Status of NPDES Permitted Outfall 19.
Dear Mr. Templeton:
1018I2007
OCT - 9 2007
UENR - WATER QUALITY
PMPT SOURCE BRAl•lCli
This letter is in response to your recent inquires regarding the activities at Alcoa's Old Brick Landfill
site in Badin, North Carolina and the associated NPDES Permitted Outfall 19. The Old Brick
Landfill ("OBI "), SWMU #3, is a closed pre-RCRA land disposal unit. The waste area was closed
and covered with compacted clay and then vegetated. In the mid- 1990s the northwest side of the
landfill experienced a slump failure. This slump failure was caused by surface water infiltration that
resulted in saturated unstable soil conditions. Alcoa repaired the slump failure and installed a toe
drain system. This toe drain system was designed to relieve pore pressure caused by seasonal water
buildup within the landfill matrix. Water controlled by the toe drains was discharged under the
NPDES Permit as Outfall 19.
A new cover and storm water management system is being installed as a maintenance activity to
eliminate Outfall 19. Resurfacing of the landfill is considered part of maintenance in support of the
Clean Water Act NPDES Permit. Waste within the unit has not be disturbed or managed during
these maintenance activities. Alcoa anticipates the cover storm water management system to be
finished by November of 2007_
In preparation for the design of the OBL maintenance work, Alcoa conducted studies to determine
the source of landfill water seepage. These studies concluded that storm water infiltration was the
source for discharge to Outfall 19. Investigation data showed that storm water percolation through
the landfill cover would accumulate within the more porous waste matrix. At a tipping point within
the landfill, accumulated pore water would start seeping from the landfill toe drains. This seepage
would occur predominately during the wetter seasons of the year; winter and early spring. As
climatic weather patterns transition into dryer periods the seep dries up. This understanding of site
conditions is based on the facts that:
Phone No. 865-977-3811
Fax No. 865-977-3620
email: Robert,[e-mail]

Water levels in wells installed within the landfill waste material responded rapidly to
precipitation events with little or no lag time. Groundwater wells installed on the exterior
of the landfill at the same depth were dry. Rainfall of 0.5 inch or greater would result in
seepage immediately after the event. This showed that a significant portion of storm water
was infiltrating quickly into the landfill matrix.
2. Water levels in wells installed exterior to the landfill in bedrock wells were at least 25 feet
below the waste material and did not respond to precipitation at the site. The shallow
geology at the site consists of silt and clay overlying the Badin Greenstone, a fine-grained
crystal tuff. Almost no coarse -grained saprolite (weathered rock) exists because the fine-
grained bedrock weathers rapidly to silt size particles. These fine grain and low permeable
soils form the landfill bottom. The effect of a coarse grain waste matrix underlain by low
permeable soils is the formation of a perched water zone within the landfill.
3. Field observations made during and after rainfall events revealed significant standing and
pooled water on the cap and perimeter storm water ditches. Poor surface drainage appears
to add significantly to water infiltration and seepage rates.
The strategy for eliminating Outfall 19 discharge focused upon cutting off the water source. This
would be done by removing the toe drains and improving the existing cover system to eliminate
surface water infiltration. The cover system improvements consisted of four basic components; 1)
revised landfill surface profile, 2) instillation of a Re -compacted Soil Barrier (RSB) and flexible
membrane liner (FML), 3) instillation of a high flow geocomposite drainage system, and 4) soil and
vegetative cover system.
The landfill profile was revised with the placement of up to 20 feet of compacted fill to improve
structural stability and surface drainage. The new reshaped landfill surface then received 1.5 feet of
compacted low permeable clay layer or RSB. Laboratory testing of this material shows it has a
permeability of less than 1 x 10-7 cm/sec. Then this compacted clay layer was overlaid with a flexible
membrane liner (FML). The FML used at this site is a 40-mil textured linear low density
polyethylene (LLDPH) synthetic. A high flow synthetic drainage system was installed over the FML.
The synthetic drainage system is composed of a double -sided geocomposite consisting of a geonet
with geotextile bonded to both sides having a transmissivity of 4 x 10-3 (m2lsec) (min.). A 24 inch
soil/grass layer covers the synthetic drainage system.
The soil/grass cover will have a finite storage capacity for the absorption of rainfall and resulting
evapotransporation. Any rainfall beyond soil/cover storage capacity will either run-off or drain from
atop the FML through the synthetic drainage system to a new diffuser toe -drain to simulate sheet -
flow. A storm water retention pond has been added to collect the discharge from the new toe -drain.
The retention pond will be constructed with a highly permeable bottom to allow percolation of the
collected water into the subsurface. The pond is designed to hold the 25-year/24-hour storm event.
In the event that the pond should reach its design capacity, it will discharge through an overflow
Phone No. 865-977-3811
Fax No. 865-977-3620
email: Robert. [e-mail]

notch and diffuser to allow sheet flow from the area. Copies of the design drawings for the new cap
and infiltration system are attached.
The use of a "storm water infiltration system" is a recommended means of storm water management
under 15A NCAC 02H.1000. Further, by definition, a storm water infiltration pond is not an
injection well. According to I5A NCAC 02C.0204DEFINITIONS (28) ""Injection Well" means
any excavation which is cored, bored drilled, jetted, dug, or otherwise constructed, whose depth is
greater than its largest surface dimension and which is used or intended to be used, for the injection
of fluids or solids into the subsurface or ground waters." An infiltration pond with a surface area
greater than its depth is not an injection well. The new OBL storm water retention pond's surface
dimension is larger than its depth as shown on the attached design drawings. In addition, this
retention pond manages only clean storm water as a result of the new cover system configuration and
design.
The new cover and storm water management system completion will change the status of Outfall 19.
According to Mr. Bradley Bennet, Supervisor of the Storm Water Permitting Unit NCDEQ, the
NCDEQ Storm Water Unit doesn't require permits for properly closed landfills, (i.e., landfills where
rainwater makes no contact with the contents of the landfill). The new cover system improvements
and configuration eliminates storm water contact with waste materials. Prior to construction
activities Alcoa reviewed and discussed the new cover and storm water management system with
Mr. Rob McDaniel and Mr. Bud McCarty with the NCDENR Division of Hazardous Waste. These
discussions were conducted during a meeting at the NCDENR offices on May 17, 2006 and again in
a conference call on July 17, 2006. It is Alcoa understands that Mr. Bud McCarty would or may
have already contacted the Division of Water Quality concerning the unit's change in status.
We appreciate your time and assistance concerning the change in status of Outfall 19. Please feel
free to contact me if you have any questions concerning this unit. Also, if needed Alcoa would
gladly coordinate a conference call or meeting between Mr. Bud MaCarty of the Division of
Hazardous Waste and yourself.
Sincerely,
Robert A. Prezbindowski
Alcoa Inc.
Alcoa Remediation Work Group
Phone No. 865-977-3811
Fax No. 865-977-3620
email: [e-mail]

,I
ROY COOPER
A7701tNEY GFu> RA1-
Rick Dworek, Esq.
Counsel
Alcoa Inc.
201 Isabella Street
Pittsburgh, PA 15212-5858
David W. Berry
State of North Carolina
Department of .justice:
PO Box 629
Raleigh, North Carotin?
27602
June 29, 2007
Smith, Anderson, Blount, Dorsett, iylitchell, & Jernigan, LLP
2500 Wachovia Capitol Center
PO Box 2611
PUcigh, NC 27602-261 1
RE]'I,YTO:
Nancy R. Dunn
Environmental Division
Tel: [phone]
Fax. [phone]
a�� 1
r
JUL 3 2007
f7Fu'� �yArEf? urWry
Re: May 7, 2007 Groundwater pH Report/ May 14, 2007 Pen -nit Amendment Rcquest
Dear Mr Dworek and Mr. Berry:
DWQ wishes to thank Alcoa for its May 7, 2007 email transmitting certain data regarding
the Badin Operations facility, pursuant to an agreement reached at the January 23, 2007 meeting
between Alcoa and DWQ. However, DWQ will require additional information in order to be
able to fully consider and interpret that data, and determine whether any modification can be
made to Alcoa's NPDES permit for that facility.
At the January 23 meeting, Alcoa expressed concern that, under the September, 2006
perrllit, "production" permit limits at outfalls 002, 004, 005, and 012 will still apply dtiring
curtailment of operations at the facility. However, Alcoa confirmed that potentially
contaminated groundwater, which woLrld otherwise be regulated under RCRA, continues to seep
into its collection system and could be discharged from these outfalls. These outfalls cannot,
therefore, be regulated as "stormwater only" discharges, which would be subject to less stringenI
limits and rllonitoring requirements. The parties discussed the possibility of creating a middle
tier of limits and monitoring requirerents in the permit that would apply to these outfalls when
only stormwater and/or groundwater was being discharged at these outfalls.
DWQ agreed to consider this possibility if Alcor could provide DWQ data, in the form of
maps showing the nature and extent of contamination at the site, the respective location and
elevation of groundwater and wastewater sewers at the site, and other data denionstrating to
I]WQ that the risk of such a discharge of contanurlated groundwater wrrs negligible at an; of all
Of tlleSe OLltfirlls. SLICK CkILI "Was not provided in the !Flay 7 e1 all, and should be submitted, along

with any supporting or explanatory materials, if DWQ is to consider this possibility any further.
DWQ also agreed to consider any information provided by Alcoa showing whether
groundwater is contributing to low pH readings at the facility. The data that was emailed to
DWQ on May 7 contained pH data obtained by continuously monitoring pH and rainfall at
outfall 002, as well as a brief narrative mentioning certain reports, elevation surveys, and other -
data which led Alcoa to determine that three outfalIs at the site are potentially impacted by
groundwater. The monitoring data should be provided in an electronic format that allows DWQ
to evaluate the data, and should be accompanied by any reports or other information upon which
Alcoa based its assumptions outlined in the May 7 "technical memo" accompanying this data.
Alcoa also asserted at the January 23 meeting that it was difficult for Alcoa to conduct
TRC analyses on its discharges, as flows at the site are intermittent, and Alcoa will contract with
a lab to collect and analyze samples. DWQ responded that Alcoa is expected to make a
reasonable effort top collect the necessary samples, and, !fit is unsucessfal, it can note the lack of
flow on its DMR's. Alcoa agreed to propose language to that effect for DWQ's consideration.
Alcoa has since indicated that it will request a site -specific Method Detection Limit ('ADL) for
its TRC analyses. Please indicate whether Alcoa intends to propose the TRC language as
previously discussed.
Alcoa Further explained at that meeting that outfall 013 discharges to a zero -flow
"receiving stream" alongside the railroad tracks, and then flows through a culvert to Badin Lake.
Alcoa expressed interest in piping its flow directly to the lake, where the dilution, and,
consequently, Alcoa's limits, would be slightly higher. Alcoa agreed to propose language that
would satisfy Alcoa that DWQ could modify the limits at this outfall if the new piping is added.
.DWQ also offers the following response to, the May 14, 2007 letter addressed to Bob
Sledge of DWQ, in which Alcoa requested that DWQ reduce most or all monitoring frequencies
in its permit due to the 2002 shutdown of operations at the facility. That letter indicated that
DWQ did riot respond to a similar request Alcoa made in 2002. DWQ did, of course, consider
that request. DWQ discussed these matters at length with Alcoa at that time. As a result of those
discussions, the draft permit that was sent to public notice in May 2003 included substantial
modifications to address Alcoa's unique needs during the curtailment of operations at the facility.
That permit was at that time, and remains to this day, the only permit of its kind in NC.
Further, the perniit conditions that Alcoa asked Mr. Sledge to modify are central to
Alcoa's challenge of its 2006 permit, and the ongoing negotiations between Alcoa and DWQ
arising from that challenge. DWQ cannot consider modifying the conditions of the 1995 permit
under which Alcoa is currently operating except as a part of negotiations of the 2006 perniit
continue. Until this contested case is resolved, Alcoa should address any requests regarding its
NPDES permit requirements to Nancy Dunn of the Attorney General's Office, or Mike
Templeton or Susan Wilson of DWQ's Point Source Branch.
eery tr 'YOU ;
Nancy Read Dunn
f�SSlsiarrt f�riOr13e'k' rC1lcCttl

0
14
2007 May 14
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27626-0535
Attention: Bob Sledge
Alcoa
Badin Works
Highway 740
PO Box 576
Badin, NC 28009 USA
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
1158 4585
RE: PERMIT AMENDMENT REQUEST - PERMIT NO. NCO004308
Dear Mr. Sledge:
As a follow-up to a meeting on April 19, 2007 with representatives of the Mooresville Regional Office, Alcoa is
requesting that admu►istrative amendments be made to its' current NPDES permit. The reason for this request is
that the Badin facility was curtailed in 2002, and as a result of this curtailment has ceased discharging process
water to its outfalls. The cessation of discharging process water to our outfalls has created a situation whereby
our discharges currently consist primarily of intermittent storm water and/or groundwater. Due to the intermittent
and unpredictable nature of our discharges, the circumstances are such that it has been difficult at best to fully
comply with the current NPDES permit which was developed to address an operational scenario much different
than what we are currently experiencing. Alcoa submitted a similar request dated August 12, 2002 (see: attached),
for which we have received no response from the Division of Water Quality.'Alcoa submitted a permit
application in 1999 and is currently working with the Division of Water Quality in finalizing the new permit.
Please find attached an outline of our proposed changes to the current NPDES permit monitoring frequencies,
which we believe to be a more appropriate sampling schedule in light of the current operational circumstances,
and which will provide us with the flexibility we need to meet the monitoring requirements during this interim
period until a new NPDES permit becomes effective.
If you have any questions or comments regarding this matter, please feel free to contact Larry McCaskill at 704-
422-5639.
Yours Very Truly,
Mark J. G oss
Facility anager
Alcoa - Badin Works
Cc: Mike Parker - N.C. DWQ — Mooresville Regional Office
Marcia Allocco — N.C. DWQ — Mooresville Regional Office
Mike Templeton— N.C. DWQ -- Raleigh Central Office; ; r
Nancy Dunn — Raleigh
2007
email
Z. T. Gibson J. D. Morton — PGH R. D. Dworek — PGH Legal - - _ _ f
J. A. Lease — PGH W. L. McCaskill C. J. Logelin--,PGH"7' .` :: r "' f
R. L. Gross

PROPOSED INTERIM MONITORING FREQUENCY
AMENDMENTS
CURRENT
PROPOSED
PARAMETER
FREQUENCY
FREQUENCY
OUTFALL 002
FLOW
WEEKLY
QUARTERLY
TOTAL SUSPENDED SOLIDS
21MONTH
QUARTERLYS')
SULFATES
2/MONTH
QUARTERLY(')
TURBIDITY
21MONTH
QUARTERLY
TEMPERATURE
WEEKLY
QUARTERLY
pH
21MONTH
QUARTERLY
FLUORIDE
MONTHLY
QUARTERLY"
ACUTE TOXICITY
QUARTERLY
NONE(')
OUTFALL004
FLOW
WEEKLY
QUARTERLY
TEMPERATURE
WEEKLY
QUARTERLY
pH
MONTHLY
QUARTERLY
TOTAL SUSPENDED SOLIDS
ANNUALLY
ANNUALLY
ALUMINUM
ANNUALLY
ANNUALLY
TOTAL CYANIDE
ANNUALLY
ANNUALLY
FLUORIDE
ANNUALLY
ANNUALLY
OUTFALL 005
FLOW
WEEKLY
QUARTERLY
OIL & GREASE
21MONTH
QUARTERLY
TOTAL SUSPENDED SOLIDS
2IMONTH
QUARTERLY
TURBIDITY
21MONTH
QUARTERLY
pH
21MONTH
QUARTERLY
CHRONIC TOXICITY
QUARTERLY
QUARTERLY
OUTFALL 011
FLOW
EPISODIC
QUARTERLY
FLUORIDE
EPISODIC
QUARTERLY
TOTAL CYANIDE
EPISODIC
QUARTERLY
OIL & GREASE
EPISODIC
QUARTERLY
TOTAL SUSPENDED SOLIDS
EPISODIC
QUARTERLY
pH
EPISODIC
QUARTERLY
ACUTE TOXICITY
ANNUALLY
ANNUALLY
OUTFALL 012
FLOW
WEEKLY
QUARTERLY
TOTAL CYANIDE
21MONTH
QUARTERLY
OIL & GREASE
21MONTH
QUARTERLY
TOTAL SUSPENDED SOLIDS
21MONTH
QUARTERLY")
ALUMINUM
MONTHLY
QUARTERLY(')
FLUORIDE
MONTHLY
QUARTERLY(Z)
TURBIDITY
MONTHLY
QUARTERLY
pH
21MONTH
QUARTERLY
CHRONIC TOXICITY
QUARTERLY
NONE"'
OUTFALL 013
FLOW
WEEKLY
WEEKLY
TOTAL CYANIDE
21MONTH
21MONTH
TOTAL SUSPENDED SOLIDS
21MONTH
21MONTH
FLUORIDE
MONTHLY
MONTHLY
TURBIDITY
21MONTH
21MONTH
ALUMINUM
MONTHLY
MONTHLY
pH
21MONTH
21MONTH
ACUTE TOXICITY
QUARTERLY
QUARTERLY
(1) PROPOSE THAT TOXICITY TESTING AT 002 & 012 BE DISCONTINUED
SINCE THE TESTS HAVE TO BE SCHEDULED & THE DISCHARGE OCCURS
INTERMITTENTLY
(2) PROPOSE THAT SAMPLE COLLECTION REQUIREMENTS FOR
COMPOSITE SAMPLES AT 002 & 012 BE CHANGED TO GRAB SAMPLES ONLY
SINCE THE DISCHARGE OCCURS INTERMITTENTLY

Inv
A►LCOA
2002 August 12
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27626-0535
Attention: Dave Goodrich
Alcoa'Primary Metals
Badin Works
Highway 740
PO Box 576
Badin, NC 28009-0576 USA
Fax: l 704 422 5746
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
8368 8555
RE: RECENT PLANT CURTAILMENT - NPDES PERMIT NO. NC0004308
Dear Mr. Goodrich:
As per recent conversations with both your office and the Mooresville Regional Office, Alcoa has recently
curtailed its operations at the Badin facility, and as a result of this curtailment has ceased discharging
process water to its outfalls. The cessation of discharging process water to our outfalls has created a
situation whereby our discharges currently consist solely of intermittent stormwater and/or groundwater.
Due to the intermittent and unpredictable nature of our discharges, the circumstances are such that it will be
difficult at best to fully comply with the current NPDES permit which was developed to address an
operational scenario much different than what we are currently experiencing. On August 16 and August 19,
2002, we called and spoke with Mr. Mike Parker, Environmental Engineer, of the Mooresville Regional
Office and discussed some of the problems, which we were facing in attempting to meet the monitoring
requirements contained within our current permit. As a result, Mr. Parker agreed that the monitoring
requirements contained within the current permit are not appropriate given the fact that the discharges
currently do not include process water. To this end, on September 9, 2002, we met with representatives of
the Mooresville Regional Office and agreed that an administrative amendment to the current permit,
modifying the sampling frequencies, is the most appropriate way to address these circumstances.
Therefore, please find attached an outline of our proposed changes to the current NI -IDES permit monitoring
frequencies, which we believe to be a more appropriate sampling schedule in light of the current operational
circumstances and which will provide us with the flexibility we need to meet the monitoring requirements
during this interim period until a new NPDES permit becomes effective.
If you have any questions or comments regarding this matter, please feel free to contact us.
Yours Very Truly,
Z. T. (Tommy) Gibson
EHS Manager
Alcoa - Badin Works
Cc: Rex Gleason — N.C. DWQ — Mooresville Regional Office
Matt Matthews — N.C. DWQ — Environmental Sciences Branch
email
Joe Kazadi J. D. Morton — PGH M. A. Ross — PGH Legal
J. A. Lease -- PGH W. L. McCaskill S. H. Myers — Knoxville
J. N. Mitchell