NC0003425_Compliance Evaluation Inspection_20100629

INSPECTION MEMORANDUM
December 12, 2012
Roxboro Steam Electric Plant
NPDES Permit No. NC0003425
Semora, NC
Additional notes from November 2012 NPDES Inspection
1) Follow up on Biological Monitoring Plan 2011 Results -
Discussed the Biological Monitoring requirement of the permit. A copy of the most recent annual
Biological Monitoring Plan results(2011) was received and reviewed. The 2011 data in the report
showed the Hardness Standard and the Manganese Standard were exceeded in the lake. Also, the
Manganese results in the BMP Report at SD (bottom water column)were recorded as high as 1750 ug/L.
Please note Hardness and Manganese levels reported for NPDES Outfall 003 were also elevated above
Water Quality Standards at the point of discharge into Hyco Lake. The Biological Monitoring Report
showed Se in fish tissue below the NC DHHS Guidance of 10 PPM wet weight, but several fish tissue Se
results were higher than the EPA DRAFT Selenium Criteria of 7.9 ug/gram dry weight/1.7 ug/gram wet
weight.
2) Requested any sampling data from Hyco Afterdam McGee's Crossroads, if any was available. It was
reported that no sampling is currently conducted at the Hyco Afterdam. The current permit language
A.12b requires all water discharged from the afterbay to Hyco River shall comply with water quality
standards including temperature standards. This location coincides with the Hyco River DWQ ambient
monitoring station. One metals scan and one chloride, fluoride, sulfate sample was taken on November
5, 2012, preliminary results show Boron significantly elevated at the Hyco Afterdam compared to
upstream Boron result reported in the 2011 Biological Monitoring Report. Boron monitoring is not
currently a requirement in the NPDES permit, but has been added to the Biological Monitoring Plan as of
2011-2012.
3) Discussed the Stormwater/Wastewater - in heated water discharge canal. All wastewater sampling
should be completed prior to commingling with Stormwater. The permit requires that a sample shall be
taken prior to mixing with other sources of wastewater. The actual situation observed at the plant is
(Non -process stormwater is discharged to the heated water canal, but also the ash pond toe drain (with
characteristics of wastewater -confirmed in 2009 sampling) also drains to the heated water canal. This is
not covered in the current permit and should be considered in future permit applications/permit
renewal. The #4 Cooling Tower blowdown discharge (Recirculating Cooling) is permitted to discharge to
the ash pond, and not directly to the heated water discharge canal. This was the understanding
reported by the permittee and the facility reported their compliance with this condition. The facility
reported in the most recent permit application two stormwater outfalls that have the potential to

discharge direct to Hyco Lake. The facility reported that one of the outfalls will likely be eliminated, and
the other will need to be added to the permit, as appropriate.
4) A review of the data from September 2010 to September 2011was conducted for the NPDES
Discharge Outfall 003 to Hyco Lake. The data is attached. Many of the parameters reported were part
of an additional sampling request by the Raleigh Regional Office, and are not currently monitored in the
permit. This data reflects the levels of constituents in the combined ash pond, heated water discharge,
and treated FGD wastewater at the point of entry to Hyco Lake.
Analytes of concern from this review, include Boron (Levels reported from 830-2310 ug/L), Thallium
(one elevated result in July 2011 of 0.25 ug/L), all Hardness Levels reported except one, exceed 100
mg/L, and Manganese with some "seasonal' spikes above 200 ug/L. See Data Attached.

Roxboro Steam Electric rit A Environmental Monitoring Report
Cam Crook ,� Alibi
Reaervok
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Ii 1
Cobbs Creek 6 C `
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North Hyco RNer
0 05 t 2 0 J75 15
1 1 I South I I
.0,49 Hyco River
Hibrrcleff
Figure 1. Hyco Reservoir sampling locations.
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Progress Energy Carolinas, Inc. 4 Water and Natural Resources Section

Cobnty:
PERSON
WATLc9
Sample ID:
AB89509
River Basin
RDA
OF
Oa pG
PO Number #
12W7864
Report To
RROSP
COTiDate
Received:
11I08/Z012
Collector:
T CASHION
O -~c
Time Received:
09:30
Region:
RRO
Labworks LoginlD
MSWIFT
Sample Matrix:
SURFACEWATER
Final Report Date:
12/17/12
Loc. Type:
RIVER/STREAM
Final Report
Report Print Date:
01/02/2013
Emergency Yes/No
VisitlD
COC Yes/No
Loc. Descr.: HYCORIVER
Location ID: HYCORIVERAFTDAM Collect Date: 1110512012 Collect Time: 10:40 Sample Depth
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
CAS # Analyte Name
LAB
ualifier Units
Date V Validated by
Sample temperature at receipt by lab 1.6 °C 11/6/12 HMORGAN
Ion Chromatography
_TITLE
mg/L
EPA 300.0
11/8/12
CGREEN
Chloride
1.0
75
mg/L
EPA 300.0
11/8/12
CGREEN
Fluoride
0.4
0.4U
mg/L
EPA300.0
11/8/12
CGREEN
Sulfate
2.0
34
mg/L
EPA 300.0
11/8/12
CGREEN
MET
7440-22-4
Ag by ICPMS
5.0
5.0 U
ug/L
EPA 200.8
11127/1,
ESTAFFORDI
7429-90-5
Al by ICP
50
110
ug/L
EPA200.7
11/2111:
ESTAFFORDI
7440-36-0
Antimony by ICPMS
10
IOU
ug/L
EPA 200.8
11/2711;
ESTAFFORDI
7440-38-2
As by ICPMS
2.0
2.0 U
ug/L
EPA 200.8
11/27/1,
ESTAFFORDI
7429-90-5
B by ICP
50
1600
ug/L
EPA 200.7
11/21/1:
ESTAFFORDI
7440-38-3
Ba by ICP
10
71
ug/L
EPA 200.7
11/2011.
ESTAFFORDI
7440-41-7
Be by ICP
5.0
5.0 U
ug/L
EPA 200.7
11/21/1.
ESTAFFORDI
7440-70-2
Ca by ICP
0.10
42
mg/L
EPA 200.7
11/21/1.
ESTAFFORDI
7440,43-9
Cd by ICPMS
1.0
1.0 U
ug/L
EPA200.8
11/2711:
ESTAFFORDI
7440-48-4
Cobalt by ICP
50
50 U
ug/L
EPA 200.7
11/21/1,
ESTAFFORD1
7440-47-3
Cr by ICPMS
10
IOU
ug/L
EPA 200.8
11/27/1,
ESTAFFORD11
7440-50-8
Cu by ICPMS
2.0
2.0 U
ug/L
EPA 200.8
11/27/1:
ESTAFFORD1
7439419-6
Fe by ICP
50
180
ug/L
EPA 200.7
11/21/1.
ESTAFFORD1
7439-97-6
Hg 245.1
0.2
0.20 U
ug/L
EPA245.1
11/16/1.
ESTAFFORDI
7440-09.7
K by ICP
0.10
3.7
mg/L
EPA 200.7
11/2011;
ESTAFFORDI
7439-93-2
Li ICP
25
25 U
ug/L
EPA 200.7
11/20/1:
ESTAFFORDI
7439-95-4
Mg by ICP
0.10
14
mg/L
EPA 200.7
1120/1,
ESTAFFORD1
7439-96-5
Mn by ICP
10
100
ug/L
EPA 200.7
1121/1.
ESTAFFORDI
143998-7
Mo by ICPMS
10
IOU
ug/L
EPA200.8
11/27/1,
ESTAFFORDI
1440-23-5
Na by ICP
0.10
9.1
mg/L
EPA 200.7
11/20/1,
ESTAFFORDI
'440-02-0
Ni by ICPMS
2.0
2.0 U
ug/L
EPA 200.8
1127/1.
ESTAFFORD1
'439-92-1
Pb by ICPMS
2.0
2.0 U
ug/L
EPA 200.8
11127/1,
ESTAFFORDI
782-49-2
Se by ICPMS
5.0
5.0 U
ug/L
EPA 200.8
11/27/1.
ESTAFFORDI
'440-31-5
Sn by ICPMS
10
IOU
ug/L
EPA 200.8
11/27/1,
ESTAFFORD1
Laboratory Section 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
For a delaiied description or the qualifier codes rater to hnp//oomincdenro /web/we/lab/sufenfn/s h D fa Qualifier Codes
Page 1 of 2

lJ
NC gD`WQ Laboratory Secti.on Rg
Location'ID: HYCORIVERAFTDAM 0 Sample ID: AB89509 Colle 11/0512012 Collect Time:: 10:40
CAS #
Analyte Name
PQL
Result/
Units
Method
Analysis
Validated by
Qualifier
Reference
Date
7440-28-0
Thallium (TI) ICPMS
10
IOU
ug/L
EPA 200.8
it/27/1:
ESTAFFORDt
7440-32-6
Ti (Titanium) by ICP
10
IOU
ug/L
EPA 200.7
11/2011,
ESTAFFORD1
7440-62-2
V by ICP
25
25 U
ug/L
EPA200.7
11/21/1.
ESTAFFORDt
7440-66-6
Zn by ICPMS
10
IOU
ug/L
EPA 200.8
11/27/1:
ESTAFFORDI
Laboratory Section 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
For a detailed dewlpimn of the Quabfier Codee refer to hff,rj o,,1 redenr on/weC/wo/lab/staffinbhecbs stNOata ualiXer Caries<hno9/Donal mdenram/web/wa/lab/s aflinb/c lussia
Page 2 of 2

County: PERSON
River Basin
Report To RROSP
Collector.
T CASHION
Region:
RRO
Sample Matrix:
SURFACEWATER
Loc. Type:
RIVER/STREAM
Emergency Yes/No
CDC Yes/No
Preliminary Results
VisitlD
Loc. Descr.: HYCORIVER
Location ID: HYCORIVERAFTDAM I Collect Date: 1110512012
1/ this report is labeled preliminary report, the results have not been val)
CAS # Analyte Name PQL
LAB
Sample temperature at receipt by lab 1.6
Ion Chromatography _TITLE
Chloride 1.0 75 ..,y,�
Sample ID:
AB89509
PO Number#
12W7864
Date Received:
11/06/2012
Time Received:
09:30
1 abworks LoainlD
MSWIFT
Fluoride 0.4 0.4 U mg/L EPA300.0 11/8112
Sulfate 2.0 34 mg/L EPA 300.0 11/8/12
7440-224
Ag by ICPMS
5.0
5.0 U
ug/L
EPA 200.8
11/27/1,
ESTAFFORDI
7429-90-5
Al by ICP
50
110
ug/L
EPA 200.7
11/2111:
ESTAFFORDI
7440-36-0
Antimony by ICPMS
10
IOU
ug/L
EPA 200.8
11/27/1:
ESTAFFORDI
7440-38-2
As by ICPMS
2.0
2.0 U
ug/L
EPA 200.8
11/27/1:
ESTAFFORDI
7429-90-5
B by ICP
50
1600
ug/L
EPA 200.7
11/21/1.
ESTAFFORD1
7440-38-3
Be by ICP
10
71
ug/L
EPA 200.7
11/20/1.
ESTAFFORDI
744041-7
Be by ICP
5.0
5.0 U
ug/L
EPA 200.7
11/21/1,
ESTAFFORDI
7440-70-2
Ca by ICP
0.10
42
mg/L
EPA 200.7
11/2111,
ESTAFFORDI
7440-43-9
Cd by ICPMS
1.0
1.0 U
ug/L
EPA 200.8
11/2711.
ESTAFFORDI
7440484
Cobalt by ICP
50
50 U
ug/L
EPA 200.7
11/21/1:
ESTAFFORDI
744047-3
Cr by ICPMS
10
IOU
ug/L
EPA 200.8
11/27/1,
ESTAFFORDI
7440-50-8
Cu by ICPMS
2.0
2.0 U
ug/L
EPA 200.8
1112711:
ESTAFFORDI
7439-89-6
Fe by ICP
50
180
ug/L
EPA 200.7
11/21/1.
ESTAFFORDI
7439-97-6
Hg 245.1
0.2
0.20 U
ug/L
EPA245.1
1111611:
ESTAFFORD1
7440-09-7
K by ICP
0.10
3.7
mg/L
EPA200.7
11/20/1,
ESTAFFORDI
7439-93-2
Li ICP
25
25 U
ug/L
EPA 200.7
11/20/1:
ESTAFFORDI
7439-954
Mg by ICP
0.10
14
mg/L
EPA 200.7
11120/1.
ESTAFFORDI
7439.96-5
Mn by ICP
10
100
ug/L
EPA 200.7
11/21/1,
ESTAFFORDI
7439-98-7
Mo by ICPMS
10
IOU
ug/L
EPA 200.8
11127/1.
ESTAFFORD1
7440-23-5
Na by ICP
0.10
9.1
mg/L
EPA 200.7
11/20/1.
ESTAFFORDI
7440-02-0
Ni by ICPMS
2.0
2.0 U
ug/L
EPA 200.8
11/27/1.
ESTAFFORDI
7439-92-1
Pb by ICPMS
2.0
2.0 U
ug/L
EPA 200.8
11/27/1;
ESTAFFORDI
7782 49-2
Se by ICPMS
5.0
5.0 U
ug/L
EPA 200.8
11127/1,
ESTAFFORDI
1440-31-5
Sn by ICPMS
10
IOU
ug/L
EPA200.8
11127/1.
ESTAFFORDI
Laboratory Section>> 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
For a detailed do..Ption of IM qualifier ooaee refer to hot, (/ I rO..rN b/ /I b/ (fi b/ b D Qua)iher Codes <hftp// d b/ /I b/ fX b/t M
Page 1 of 2

NC/DWWQ Laboratory Section
Location ID. HYCORIVERAFTDAM Sample ID: AB89509 Colle 11/0512012 Collect Time:: 10:40
MET
Result/
Method
Analysis
CAS #
Analyte Name
PQL
Units
Validated by
—
Qualifier
Reference
Date
7440-28-0
Thallium (TI) ICPMS
10
IOU
ug/L
EPA 200.8
11/2 111.
ESTAFFORD1
7440-32-6
Ti (Titanium) by ICP
10
IOU
ug/L
EPA 200.7
11/20/1:
ESTAFFORD1
7440-62-2
V by ICP
25
25 U
ug/L
EPA 200.7
11/21/1.
ESTAFFORD1
7440-66-6
Zn by ICPMS
10
IOU
ug/L
EPA 200.8
11/27/1,
ESTAFFORD1
Laboratory Sectiorp> 1623 Mall Service Center, Raleigh, NC 27699-1623 [phone]
For a detailed desaipbon of the qualifier codes rater o hq 4/ ml d N b/ /I b/ /N b/ M1 0 O.Aft, Cod htt,Lt, tl,.d.r,,.,,N.bLwo/lab/vafbnb/techassista
Page 2 of 2

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Date
Arsenic ug/L
8/3/2010
1.4
8/17/2010
1.5
9/7/2010
1.5
9/21/2010
1.4
10/5/2010
1.8
10/21/2010
1.7
11/2/2010
1.3
11/16/2010
1.2
12/7/2010
0.97
12/21/2010
0.86
1/4/2011
0.65
1/18/2011
0.8
2/2/2011
1.1
2/15/2011
0.94
3/1/2011
0.86
3/14/2011
0.83
4/5/2011
0.77
4/19/2011
0.79
5/3/2011
0.85
5/17/2011
0.87
6/7/2011
0.9
6/21/2011
1.7
7/6/2011
1.4
7/19/2011
1.25
8/2/2011
1.7
8/16/2011
2
9/20/2011
2.5
10/4/2011
2.5
11/2/2011
2.5
12/6/2011
2.5
1/4/2012
2.5
2/7/2012
2.5
3/7/2012
2.5
4/3/2012
2.5
5/1/2012
2.5
6/5/2012
2.5
7/3/2012
2.5
8/1/2012
2.5
9/5/2012
2.5
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2.5
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0 41 -

Progress Energy
File: 12520 B
Ms. Autumn Romanski
Division of Water Quality
N. C. Department of Environment and Natural Resources
1628 Mail Service Center
Raleigh, NC 27699-1628
Subject: Roxboro Steam Electric Plant
NPDES Permit No. NC0003425
Limestone slurry release
Person County
Dear Ms. Romanski:
November 30, 2012
On November 26, 2012, Shannon Langley of Progress Energy, made verbal notification to your
office of a release of approximately 6,900 gallons of limestone slurry at the subject facility. The
verbal notification was made as an "unusual circumstance" as required by 15A NCAC 2B
0.506(a)(2)(B). As required by 15A NCAC 2B 0.506(a)(3), this letter fulfills the five day written
letter requirement.
The Roxboro plant uses limestone slurry to remove pollutants from the plant's air emissions.
The material that was released had not yet been introduced into the plant's FGD scrubbers. Plant
staff quickly detected the leak and took immediate action to stop the discharge.
The discharge consisted solely of Hyco Lake water mixed with a small amount of limestone,
which does not present a threat to the environment or water quality. Plant staff took additional
action be retaining a contractor to gain access to the bank where the slung entered the lake and
clean up any limestone residue.
This release was from a pipe leak in a fiberglass reinforced pipe. The leak has been fully
repaired and the section of pipe that is experienced the leak is being sent to a laboratory for
analysis to better understand the cause of the failure.
A press release was issued on Tuesday, November 27, 2012 to media outlets having general
coverage in the area.
Program Energy Comtinae, Inc.
Roxboro Steam Plant
17DO Ounnamy Road
Samara, NC 27343

•
If you have any questions concerning this submittal, please contact Shannon Langley at (919)
546-2439.
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility offines and imprisonment for knowing violations.
Regards,
Mike Mosle
Plant Man ger
Roxboro Steam Electric Plant
MM/sl
Cc Robert Howard
Shannon Langley — PE134

..
` Progress Energy
File: 12520 B
Ms. Autumn Romanski
November 30, 2012
Division of Water Quality
N. C. Department of Environment and Natural Resources
1628 Mail Service Center -
Raleigh, NC 27699-1628 F� - 3 2012
!1
Subject: Roxboro Steam Electric Plant
NPDES Permit No. NC0003425
Limestone slurry release
Person County
Dear Ms. Romanski:
On November 26, 2012, Shannon Langley of Progress Energy, made verbal notification to your
office of a release of approximately 6,900 gallons of limestone slurry at the subject facility. The
verbal notification was made as an "unusual circumstance" as required by 15A NCAC 2B
0.506(a)(2)(B). As required by 15A NCAC 2B 0.506(a)(3), this letter fulfills the five day written
letter requirement.
The Roxboro plant uses limestone slurry to remove pollutants from the plant's air emissions.
The material that was released had not yet been introduced into the plant's FGD scrubbers. Plant
staff quickly detected the leak and took immediate action to stop the discharge.
The discharge consisted solely of Hyco Lake water mixed with a small amount of limestone,
which does not present a threat to the environment or water quality. Plant staff took additional
action be retaining a contractor to gain access to the bank where the slurry entered the lake and
clean up any limestone residue.
This release was from a pipe leak in a fiberglass reinforced pipe. The leak has been fully
repaired and the section of pipe that is experienced the leak is being sent to a laboratory for
analysis to better understand the cause of the failure.
A press release was issued on Tuesday, November 27, 2012 to media outlets having general
coverage in the area.
Progress Energy Carolinas, Inc.
Ioxhoro Steam Plant
1700 Dunnaway Road
Samara, NC 27343

C
If you have any questions concerning this submittal, please contact Shannon Langley at (919)
546-2439.
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. 1 am aware that there are significant penalties for submitting false information,
including the possibility offines and imprisonment for knowing violations.
MM/sl
Cc Robert Howard
Shannon Langley — PEN
Regards,
Mike ZO17slePlant Man
Roxboro Steam Electric Plant

J
Romanski, Autumn
From:
Herzberg, Barry
Sent:
Wednesday, September 05, 2012 9:11 AM
To:
Pohlig, Ken
Cc:
Romanski, Autumn
Subject:
Roxboro ATC 021024A02
Attachments:
image005.jpg; image006.png
Ken, no comments re Roxboro's request for a centrifuge based sludge dewatering system.
Barry Herzberg, Environmental Engineer
Raleigh Regional Office
919-791-4249 Voice
919-788-7159 Fax
barry.herzberg anncdenr.gov
of v A 7Fti
NCDE3 Y
NR ° c
Email correspondence to and from this address is
subject to the North Carolina Public Records Law
and may be disclosed to third parties unless the
content is exempt by statute or other regulation.

0 0
Romansk4 Autumn
From: Langley, Shannon [Shannon. [e-mail]]
Sent: Tuesday, October 09, 2012 4:11 PM
To: Romanski, Autumn
Attachments: image001.gif; KLeeNscrub MSDS (2).docx; KLeeNScrub-June 2012 (2).pdf
Hi Autumn,
I wanted to send you a notification of a short trial in which a new chemical will be added at the Roxboro Steam Plant.
Plans call for a 10 day trial in November in which we will add a product called KIeeNScrub (MSDS and Product Sheet
attached) into the absorber via a connection in the AR pump suction line that feeds the top level spray headers. The
blowdown stream from the absorber is sent to the FGD settling pond to maintain chloride concentrations in the
absorber.
The purpose of the trial is to evaluate ways to potentially mitigate mercury re -emission in the future. This chemical is
used to bind metals into insoluble compounds so any additional metals captured would be expected to settle out in the
FGD settling pond. Recall that the FGD settling pond has retention time well in excess of 10 days. We do not believe
there will be any detrimental effects on the FGD wastewater treatment process or wastewater discharge
characteristics. A total of four totes of KIeeNScrub are planned to be used during the trial.
Shannon
E. Shannon Langley
Senior Environmental Specialist
Environmental Services Section - Carolinas
Progress Energy Carolinas, Inc.
[phone] (public)
8-770-2439 (voicenet)

`TERIAL
DATE OF ISSUE: 03/27/2000
DATE OF LATEST REVISION: 09/08/2006
PAGE 1 OF 3
s
SAFETY DATA SHEET
SECTION 1: PRODUCT and COMPANY IDENTIFICATION
PRODUCT NAME: KLeeNscrub
PRIMARY FUNCTION: METAL PRECIPITANT
CHEMICAL NAME: Hydropolysulfide, carbonothioylbis-,disodium salt. CAS# 128578-22-3
CHEMICAL FAMILY: Organic Sulfur
MANUFACTURER:
WATER SPECIALISTS TECHNOLOGIES LLC
1515KASTNER PLACE
SANFORD,FL 32771 USA
PHONE:[phone] FAX:[phone]
EMERGENCY 24/7 CONTACT:
CHEMTREC - PHONE: [phone]
SECTION 2: COMPOSITION/INFORMATION ON INGREDIENTS
INGREDIENT (CAS #) OSHA PEL ACGIH TLV OTHER
(PPM) (PPM)
The components of this formulation and the precise composition is proprietary. Bona fide requests for disclosure to medical
personnel must be made in accordance with the procedures in 29 CFR 1910.1200(i)1-13.
While this material is not classified as hazardous under OSHA regulations, this MSDS contains valuable information critical to the
safe handling and proper use of the product. This MSDS should be retained and available to all users of this product.
SECTION 3: HAZARDS IDENTIFICATION
EYES: May cause irritation and redness.
SKIN: Prolonged contact with skin may cause skin irritation.
INGESTION: See Section 4 below.
INHALATION: Mist or spray may cause irritation if inhaled.
SECTION 4: FIRST AID MEASURES
EYES: Flush eyes gently with water for at least 15 minutes while holding eyelids apart. Seek medical attention.
SKIN: Remove contaminated clothing and shoes and flush affected area with water for at least 15 minutes. Wash with soap and
water. If irritation persists seek medical attention. Wash or discard contaminated clothing and shoes
INGESTION: Immediately rinse mouth with water. Do not induce vomiting. Drink milk or water to dilute. If vomiting occurs, drink
more liquids. Seek medical attention
INHALATION: If respiratory distress occurs, get into fresh air and, if needed, administer oxygen and start CPR. Seek medical
attention.
SECTION 5: FIREFIGHTING MEASURES
FLASH POINT: Not Appplicable — water solution.
EXTINGUISHING MEDIA: Not Applicable —water soltuion
SPECIAL FIRE FIGHTING PROCEDURES: None
UNUSUAL FIRE AND EXPLOSION HAZARDS: None

MSDS: THIO-RED
PAGE 2OF3
SECTION 6: ACCIDENTAL RELEASE MEASURES
SMALL SPILLS: Soak up with an absorbent and shovel into a waste container.
LARGE SPILLS: Contain spill and recover liquid for reprocessing or disposal
WASTE DISPOSAL METHOD: Dispose of in accordance with local, state and federal regulations.
SECTION 7: HANDLING and STORAGE
HANDLING AND STORAGE: Protect drum from damage, freezing and intense heat.
OTHER PRECAUTIONS: Wear protective eye goggles, gloves, boots and clothing.
SECTION 8: EXPOSURE CONTROLS and PERSONAL PROTECTION
EYE PROTECTION: Wear chemical splash -proof goggles
PROTECTIVE GLOVES: Wear alkaline resistant gloves.
RESPIRATORY PROTECTION: None normally required.
VENTILATION: Always store and use all chemicals in well ventilated areas.
OTHER PROTECTIVE EQUIPMENT: Wear protective clothing and boots suitable for protection from alkaline products. Provide
eye wash and safety shower stations.
SECTION 9: PHYSICAL and CHEMICAL PROPERTIES
BOILING POINT: 212OF
SPECIFIC GRAVITY: 1.04 —1.06
EVAPORATION RATE: Not Determined
VAPOR DENSITY: Not Determined
VAPOR PRESSURE: Not Determined
SOLUBILITY IN WATER: Complete
pH of NEAT SOLUTION: 12.0 — <12.5
APPEARANCEIODOR: Warm Red Liquid, Sulfur Odor
SECTION 10: STABILITY and REACTIVITY
STABILITY: Stable
HAZARDOUS POLYMERIZATION: Will not occur.
INCOMPATIBILITY (MATERIALS TO AVOID): Strong oxidizing agents or mineral acids.
HAZARDOUS DECOMPOSITION PRODUCTS: None Known
SECTION 11: TOXICOLOGICAL INFORMATION
CHRONIC EFFECTS AND MEDICAL CONDITIONS AGGRAVATED BY OVEREXPOSURE: None noted.
SPECIAL NOTE: None of the components in this product are considered a carcinogen by OSHA, NTP or [ARC.
TOXICITY TESTS resulted in the following LC50 values after 48-hour static acute toxicity tests: Rainbow Trout @ 33.0 mg/I;
Bluegill Sunfish @ 35.0 mg/I.
SECTION 12: ECOLOGICAL INFORMATION
No data.

M SDS: THIO-RED • •
PAGE 3OF3
SECTION 13: DISPOSAL CONSIDERATIONS
This product, in its neat form, is not considered hazardous. After use in treating wastewaters/groundwaters, the
characteristics of the treated solution will dictate the proper disposal in accordance with local, state and Federal
regulations.
SECTION 14: TRANSPORT INFORMATION
Non -regulated material.
SECTION 15: REGULATORY INFORMATION
FEDERALEPA
Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA):
Requires notification to the National Response Center of releases of quantities of Hazardous Substances equal to or
greater than the reportable quantities (RQ) in 40 CFR 302.4. Components present in this product at a level which would
require reporting under the statute are:
Chemical CAS Number RQ
NONE
Superfund Amendments and Reauthorization Act of 1986 (SARA) Title III:
Requires emergency planning based on Threshold Planning Quantities (TPQs) and release reporting based on Reportable
Quantities (RQ) in 40 CFR 355 (SARA 302, 304, 311 and 312) Components present in this product at a level which could require
reporting under the statute are: NONE
Toxic Substances Control Act (TSCA) Status:
All components of this product are on the TSCA inventory
EPA Priority Pollutants: NONE
RCRA Hazard Class: If discarded neat - non -hazardous.
SECTION 16: OTHER INFORMATION
HMIS RATINGS: Health=l, Flammability=0, Reactivity=0
HMIS HAZARD INDEX: O=MINIMAL, 1=SLIGHT, 2=MODERATE, 3=SERIOUS, 4=SEVERE
LEGEND:
CAS Chemical Abstract Number
CERCLA Comprehensive Environmental Response, Compensation and Liability Act
CFR Code of Federal Regulations
HMIS Hazardous Materials Identification System
IARC International Agency for Research on Cancer
MSDS Material Safety Data Sheet
N/A Not Applicable
NTP National Toxicity Program
OSHA Occupational Safety and Health Administration
PEL Permissible Exposure Limit
SARA Superfund Amendments and Reauthorization Act
TSCA Toxic Substance Control Act
TLV Threshold Limit Value
The information accumulated herein is believed to be accurate but is not warranted to be whether originating with the
company or not. Recipients are advised to confirm in advance of need that the information is current, applicable, and
suitable to their circumstances.

oQ&lees
Innovative Chemistry for Energy Efficiency
KLeeNScrubTM Mercury Precipitant
Mercury poses a serious
problem for humans and
the environment. Coal-fired
power plants are a major
source of mercury emis-
sions. Much of the mercu-
ry emitted during combus-
tion is captured by FGD
systems, only to be reemit-
ted into the air or re-
released into the water
table from landfills.
Environmental Energy Ser-
vices, Inc. introduces
KLeeNScrub for remediat-
ing toxic heavy metal con-
taminates. KLeeNScrub
converts soluble heavy
metal compounds into in-
soluble, non -leachable
compounds having no ad-
verse environmental con-
sequences.
The present form of this
technology is for use with
wet scrubbers to precipi-
tate heavy metals, includ-
ing mercury from scrubber
liquor. Additional work is
being done to explore the
active ingredient's efficacy
in removing gaseous mer-
cury along with the
sorbent/oxidant technology
described below.
KLeeNScrubTM Sorbent/Oxidant
EES is working with finan-
cial and technology part-
ners to offer a sorbent-
based oxidant / flue gas
capture system to compli-
ment the scrubber solution
precipitant described
above. The oxidant is a
blend of highly active com-
pounds carried on the back
of a non— carbon sorbent
for maximum capture effi-
ciency with minimal loss of
effectiveness at the higher
temperatures and S03
concentrations (seen with
activated carbon). We are
currently completing the
laboratory phase of this
work and will be actively
pursuing interested candi-
dates for initial commercial
demonstrations.

KLeeNScrub TM Case Study -
773 MW PRB Coal -Fired Power Plant
An extended plant trial was conducted at a coal fired power plant in Western US in con-
junction with EPRI. The objective was to identify a mercury removal technology that
could easily and economically be implemented in the plant's wet scrubber system to re-
move 70% of the mercury from the plant's process. The plant was feeding calcium bro-
mide in an effort to oxidize the elemental mercury to its divalent form thus enhancing re-
moval within the scrubber system. A removal efficiency of 40% was consistently
achieved by this approach. The remaining 60% was partitioned between the stack gas
and the absorber purge liquor.
Over the course of the trial, the coal source was held constant, the absorber pH was
maintained at 5.6-5.8, and ground limestone was fed for sulfur dioxide control.
The absorber purge liquor was fed to hydrocyclones followed by a secondary thickener
to remove the gypsum. Purge sludge from the thickener was disposed of in the plant's
on -site evaporation pond.
KLeeNScrub was applied to the clarified thickener overflow as it was being returned to
the absorber. Dosing was achieved by feeding directly from tote bins into the thickener
overflow being returned back to the absorber. A stand -
and air diaphragm pump was used for feeding the pre-
cipitant and no dilution of the product was necessary. An initial dosage of
100ppm was fed to precipitate all heavy metals, including mercury, within the
entire scrubber system. Once the product reached an equilibrium level the dos-
age was reduced to 40ppm and held constant for the remainder of the trial.
Mercury levels in the feed coal and thickener overflow were monitored.
The average concentration of mercury in the coal was 380ppb as compared to
2.7ppb at the overflow. Testing of the purge sludge solids confirmed that the
precipitated mercury was present in the solids being removed from the process.
When KLeeNScrub was stopped, mercury levels within the system returned to
baseline, conclusively demonstrating KLeeNScrub's ability to remove greater
than 99% of the mercury at this facility versus the 70% removal goal.
EnNronmental Energy services, Inc.
5 Turnberry lane
Sandy Hook. Cr 06482
Phone: [phone]
F= 203-426-0150
..eescorp.com
Environmental Energy Services, Inc. Is a privately held technology company that provides advanced en-
gineering solutions for the optimization of combustion systems in utility and industrial applications.
Contact: EES Clean Coal Solutions
Mark Pastore, VP Clean Coal Solutions
[e-mail]
EES. Inc.
Mark Neffer. General Sales Manager
[e-mail]

0
C , Progress Energy
File No.: 12520 M
Mr. Jay Sauber
Environmental Sciences Section
NC Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
September 26, 2012
Subject: Carolina Power & Light Company d/b/a Progress Energy Carolinas, Inc., an
indirect subsidiary of Duke Energy Corporation, Roxboro Steam Electric Plant
NPDES Permit NC0003425
2011 Environmental Monitoring Report
Dear Mr. Sauber:
On July 2, 2012, Progress Energy Inc., the parent of CP&L d/b/a PEC merged with a subsidiary
of Duke Energy Corporation. Please find enclosed two copies of the Roxboro Steam Electric
Plant 2011 Environmental Monitoring Report as required by the subject NPDES permit.
1 certify, under penalty of law, that this document and all attachments were
prepared under my direction or supervision in accordance with a system designed
to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief, true, accurate, and complete.
I am aware that there are significant penalties for submitting false information,
including the possibility offines and imprisonment for knowing violations.
Should you have any questions or require further information, please contact Mr. Reid Garrett of
Progress Energy's Water and Natural Resources Section at [phone].
Enclosure
reh/wrg
c: Mr. Robert Curry (NCWRC)
Mr. Gordon Myers (NCWRC)
Mr. Shannon Langley (w/o enclosure)
Progress Energy Carolinas, Inc.
Roxboro Steam Plant
17000unnaway Road
Semora, NC 27343
Regards,
Mike Mosl7
Plant Manager
Roxboro Steam Electric Plant
a '; OCT 2 5 2012 D,

0
0
Romanski, Autumn
From: Romanski, Autumn
Sent: Thursday, September 13, 2012 12:52 PM
To: 'Langley, Shannon'
Cc: Herzberg, Barry; Smith, Danny; 'Cahoon, Steve'
Subject: RE: Notification of potential change in wastewater
Attachments: image001.gif
Shannon,
Thank you, I will add this information to the file.
FYI:
URS Reference: httt)://www.supportcleanair.com/resources/studies/file/4-8-11-URSTechnologVReport.pdf
One operational issue that has not fully been addressed is the impact of re -emission
additives on gypsum Hg content. Some owners of FGDw systems sell the gypsum that is
produced as a byproduct of the scrubber. An increase in the mercury content of the gypsum
byproduct could affect sales of the product. Currently there are few if any specifications on
gypsum Hg content, but re -emission additives that precipitate mercury could increase gypsum
Hg content to the point where the gypsum would potentially no longer be salable. If this is the
case, the effective cost of re -emission additives would increase for those FGDw operators who
are no longer able to sell the gypsum byproduct for $5-10/ton, but rather a liability costing $5-
20/ton to dispose of in a landfill.
Autumn
From: Langley, Shannon[mailto:Shannon. [e-mail]]
Sent: Thursday, September 13, 2012 11:40 AM
To: Romanski, Autumn
Subject: RE: Notification of potential change in wastewater
Autumn,
Here are some more specifics to address your questions.
GE will provide a report on the effectiveness of the chemical addition after the trial is completed. We can provide you a
copy if you would like. This should contain the information you referenced below. I would not expect it to be available
until sometime after the first of the year.
Additional ORP measurement instrumentation will be installed at the bioreactor inlet prior to commencing this trial. ORP
instrumentation is also being installed in the scrubbers. This instrumentation will be left in operation going forward.
Sodium bicarbonate will be added to the blow down water at the blow down pump outlet based on alkalinity which will
be measured by taking daily samples. Addition rates will be adjusted based on the alkalinity. It is expected that the
current alkalinity levels will be maintained.

Sodium Bisulfite/Ammonium BiSUmce will be added to the bioreactor inlet b>tkd on the continuous ORP monitoring at
this location. I have been told that the SBS/ABS will only be added if the ORP at the bioreactor inlet is in the high 300's
(> 350 or closer to 400 mV).
Caustic will be added to maintain a pH of 7 at the bioreactor inlet and this will be controlled by the pH meters.
Shannon
From: Romanski, Autumn [mailto:[e-mail]]
Sent: Monday, September 10, 2012 9:31 AM
To: Langley, Shannon
Cc: Smith, Danny; Herzberg, Barry; Cahoon, Steve
Subject: RE: Notification of potential change in wastewater
Shannon,
Can you let RRO know the process control sampling regime (retention times, parameters/lab method and outfalls that
will be sampled as part of the trial) to ensure appropriate detection of any changes in the final effluent characteristics,
as well as, confirm that any sampling completed to provide data for the analysis of success or failure of the trail will be
forwarded to DWQ?
I also e-mailed Steve Cahoon, with concern that any changes resulting to gypsum cake warrant
consideration/appropriate decision of use of gypsum cake in wallboard manufacturing vs. landfill disposal option.
Thank you again for your notification and for your consideration.
From: Langley, Shannon [mailto: Shannon. [e-mail]]
Sent: Friday, September 07, 2012 2:04 PM
To: Romanski, Autumn
Cc: Smith, Danny; Howard, Robert
Subject: Notification of potential change in wastewater
Hi Autumn,
I wanted to send you a notification of a potential change in NPDES discharge. This change is very similar to what has
been submitted to you in the past for the Mayo Plant.
The Roxboro Steam Plant (NPDES Permit S# NC0003425) plans to perform a trial burn of 100% Illinois Basin (ILB) Coal on
Unit 3 and Unit 4 beginning at some point during the 4th quarter of this year. High sulfur Northern Appalachian (NAPP)
coal is planned for Roxboro Units 1 and 2. The trial burn should last for 30-45 days.
Combustion of these coals is expected to result in a potentially high oxidation-reduction potential (ORP) via the FGD
blow down to the bioreactor. This will be monitored closely. In order to reduce the ORP to ensure the continued
bioreactor performance, the following chemical additions to the FGD blowdown wastewater have been recommended
by GE® are being planned during the trial.
Product Name
Estimated Max. Dosage (ppm)
Daily Feed Rate (Ibs/ day)
Sodium Bicarbonate - 100 % dry
200 (instantaneous)
48,789 Ibs. based on total estimated
settling pond volume
Sodium Hydroxide —25%
150
2430
Sodium Bisulfite — 35-40%
600
9720

Ammonium Bisulfite40-60% �600 9720
For clarification, we would use either the Sodium Bisulfite OR the Ammonium Bisulfite.
Let me know if you have any questions that we can address about the wastewater system before the trial burn
commences.
Thanks for your attention to this notification.
Shannon
Ps. I spoke to Steve Cahoon about the written report for the Mayo trial burn. He reminded me that the Mayo trial burn
was delayed due to the plant being offline earlier this year for an unplanned outage. We are awaiting the Mayo report
from GE.
E. Shannon Langley
Senior Environmental Specialist
Environmental Services Section - Carolinas
Progress Energy Carolinas, Inc.
[phone] (public)
5-770-2439 (voicenet)
� M,-I M,I

Romanski, Autumn
From: Romanski, Autumn
Sent: Monday, September 10, 2012 9:31 AM
To: 'Langley, Shannon'
Cc: Smith, Danny. Herzberg, Barry, 'Cahoon, Steve'
Subject: RE: Notification of potential change in wastewater
Attachments: image001.gif
Shannon,
Can you let RRO know the process control sampling regime (retention times, parameters/lab method and outfalls that
will be sampled as part of the trial) to ensure appropriate detection of any changes in the final effluent characteristics,
as well as, confirm that any sampling completed to provide data for the analysis of success or failure of the trail will he
forwarded to DWQ?
I also e-mailed Steve Cahoon, with concern that any changes resulting to gypsum cake warrant
consideration/appropriate decision of use of gypsum cake in wallboard manufacturing vs. landfill disposal option.
Thank you again for your notification and for your consideration.
Autumn
From: Langley, Shannon[mailto:Shannon. [e-mail]]
Sent: Friday, September 07, 2012 2:04 PM
To: Romanski, Autumn
Cc: Smith, Danny; Howard, Robert
Subject: Notification of potential change in wastewater
Hi Autumn,
I wanted to send you a notification of a potential change in NPDES discharge. This change is very similar to what has
been submitted to you in the past for the Mayo Plant.
The Roxboro Steam Plant (NPDES Permit # N00003425) plans to perform a trial burn of 100% Illinois Basin (ILB) Coal on
Unit 3 and Unit 4 beginning at some point during the 41h quarter of this year. High sulfur Northern Appalachian (NAPP)
coal is planned for Roxboro Units 1 and 2. The trial burn should last for 30-45 days.
Combustion of these coals is expected to result in a potentially high oxidation-reduction potential (ORP) via the FGD
blow down to the bioreactor. This will be monitored closely. In order to reduce the ORP to ensure the continued
bioreactor performance, the following chemical additions to the FGD blowdown wastewater have been recommended
by GE® are being planned during the trial.
Product Name
Estimated Max. Dosage (ppm)
Daily Feed Rate (Ibs/ day)
Sodium Bicarbonate - 100 % dry
200 (instantaneous)
48,789 Ibs. based on total estimated
settling pond volume
Sodium Hydroxide —2S%
150
2430
Sodium Bisulfite — 35-40%
600
9720
Ammonium Bisulfite 40-60%
600
9720

For clarification, we would us<..!her the Sodium Bisulfite OR the AmmoniigBisulfite.
Let me know if you have any questions that we can address about the wastewater system before the trial burn
commences.
Thanks for your attention to this notification.
Shannon
Ps. I spoke to Steve Cahoon about the written report for the Mayo trial burn. He reminded me that the Mayo trial burn
was delayed due to the plant being offline earlier this year for an unplanned outage. We are awaiting the Mayo report
from GE.
E. Shannon Langfey
Senior Environmental Specialist
Environmental Services Section - Carolinas
Progress Energy Carolinas, Inc.
[phone] (public)
8-770-2439 (voicenet)
�v Progress Energy

Romanski Autumn
From: Romanski, Autumn
Sent: Friday, September 07, 2012 2:44 PM
To: 'Cahoon, Steve'
Subject: RE: Mercury Re -Emission Trail
Steve,
Upon re -reading this email, I became concerned about the gypsum comment.
Precipitating Hg into the gypsum cake, the usual power plant gypsum byproduct does normally contain a percentage of
metals, separate of just aluminum sulfate, but is this Hg precipitation into the gypsum cake going to cause issues with
use at the Certianteed Board Plant? Or will the gypsum cake be sent to the landfill? Maybe this form of Hg in the gypsum
cake would be safe to use in wallboard?
I understand this trial was delayed and something similar is going to happen on a trial basis at Roxboro.
Anyway, just a question.
Have a good weekend.
Autumn
From: Cahoon, Steve[mailto:[e-mail]
Sent: Thursday, August 16, 2012 2:25 PM
To: Romanski, Autumn
Subject: Mercury Re -Emission Trail
Autumn,
Progress Energy is notifying the Raleigh Regional Office of a temporary planned change at the Mayo Plant. As you are
aware we are in the process of conducting several studies at the Mayo Plant designed to help improve the quality of the
waste water discharge at Outfall 009 and Outfall 002. Our Strategic engineering group is investigating a possible
mercury re -emission mitigation reagent trial at Mayo this fall. The trial is focused on air emissions; however there may
be slight change in the wastewater discharge at the plant as a result of the use of sodium hydrosulfide. The desired trial
window is a 14 day period between 9/4and 1O/6. This trial would be contingent on the mercury profiling results in July
demonstrating that mercury reemission is occurring. This trial will most likely be performed by B&W and the chemical
supplier TDC. The reagent is a solution of sodium hydrosulfide (NaHS) that is injected into the scrubber slurry from one
of the existing ports on the AR pumps. The reagent MSDS is attached to this email.
The NaHS solution reduces mercury reemission in the wet FGD by acting as a sulfide —donating liquid which increases
Hydrogen Sulfide (HZS) which reacts with a portion of the oxidized mercury to form Mercury Sulfide (HgS) at the gas
phase boundary. This sequesters the mercury as a insoluble solid that precipitates into the gypsum cake thus preventing
reduction of oxidized mercury to elemental form. Expected injection rates for this trial range from 0.5 gpm up to 1.0
gpm depending on blowdown rate to maintain a minimum concentration that prevents Hg reemission. This corresponds
to -0.4 —1.2 ppm of NaHS in the scrubber solution.

The formation of insoluble H90Y NaHS may increase the mercury bound irl'The gypsum thus reducing mercury in the
waste water stream. Any residual NaHS in the waste water stream is expected to be readily decomposed by the
controlled partial oxidation of sulfide to elemental sulfur catalyzed by naturally occurring microorganisms of the genus
Halothiabacillus in the bioreactor and environment. These natural, living microorganisms present in the bioreactor
catalyze the sulfur conversions and are, by their nature, resilient and adaptive. As such no detrimental impact on the
bioreactor is expected nor wastewater other that a potential for a increase in sulfur solids.
We'll receive a report from our vendor discussing the trial results and recommendations moving forward. Please
review the information above and let me know if you have any questions, concerns or suggestions to aid us as we
prepare to proceed with this trial. Thanks in advance for your time and consideration.
Steve
Steve Cahoon
Duke Energy - Environmental Services
[phone]
Fax [phone]
Vnet - 770-7457

m�
"811-7
-M U»-A
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor Director Secretary
RALEIGH REGIONAL OFFICE
NPDES STAFF REVIEW AND EVAL UATION
Staff Report Date: May 22, 2012
Permit Type: ® NPDES Wastewater ❑ NPDES General Wastewater ❑ NPDES Stormwater
*Facility reports all stormwater
flows to wastewater outfalls?
Commingling should be reviewed
Permit Number: NC0003425
Facility Name:
Facility County:
Facility Contact:
Receiving Stream:
River Basin:
Stream Classification
Date of Review:
Review Conducted By:
Roxboro Steam Electric Generating Plant
Person
Mike Mosley
Hyco Reservoir
Roanoke River Basin
Water Supply WS-V
May 22, 2012
Autumn Romanski
Reeional Office Review Summary:
A review of the facility indicates no permit violations, but the last permit was issued in June
2009 (1 Y2 years after the start-up of the new flue gas desulfurization treatment system) and the
FGD pollutants were not required to be monitored at the NPDES Final Outfall 003. The permit
did contain FGD treated effluent monitoring - NPDES Outfall 010. RRO requests permit writer
review the latest EPA guidance document dated June 7, 2010 (Attached) for consideration of
appropriate monitoring requirements regarding internal FGD outfall 010, internal CCP
impoundment seepage outfall, and final outfall 003 to Hyco Lake (WS-V, Class B). RRO
requests review of FGD and Hyco Lake white papers dated May 2010 (Attached). Final outfall
003 sampling should be such that the data collected is useful for the determination of treatment
3800 Barrett Drive, Raleigh, North Carolina 27609
Phone: [phone] / Fax: [phone]
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper

Peimit No. NCO003425 '
Page 2 of 3
unit performance and trends and is needed to ensure the O & M requirements of the permit are
met, as well as, ensure the protection of Hyco Lake. The facility filed an application for Special
Order by Consent on March 30, 2009, proceeding FGD treatment units) structural failure(s)
and a reported 50 million gallon bypass of FGD wastewater to the Ash Pond that occurred on
February 25, 2008 through March 14, 2008. Since the NPDES Outfa!! 003 permit requirements
did not capture the data RRO needed to evaluate the treatment unit failures and bypass, the
RRO requested additional internal FGD operational data and additional sampling data from
Final Outfall 003. This data collected from March 4 2008 through September 2012 should be
carefully reviewed for the permit renewal The data was placed on the DMR, but not entered in
BIMs since the data was extensive and DWO resources for data entry were limited This data
will have to be entered into BIMs by the permitting unit or data entry unit for consideration of
the permit renewal. The SOC was negotiated from April 2009 until February 2010 and an
SOC was mailed by DWQ for signature by Progress Energy in February 2010. The SOC was
not signed and returned within the 15 days allotted for signature. In July 2011, Progress
Energy withdrew the application for SOC.
Please note the classification of the wastewater system should be changed from Grade I to
Grade 2 Physical Chemical on September 4, 2009, but status was not updated in Bims and the
facility is a Wastewater H Biological Treatment System Class, which is also not reflected in
BIMs.
Recommendations:
The Raleigh Regional Office recommends that the wastewater permit be reissued with the
following requests:
1) Review of the data in BIMs as well as review of the data that was
obtained throuah the RRO monitorina request. Data entry and QA/QC of
the entered data will be needed prior to use for RPA/data analysis.
2) Addition of hardness along with continued pH monitoring. I have
attached the Hyco Lake Intake Sample results provided by Progress
Energy in 2009 for your review. As you can see, the Ca levels indicate
hardness is well over water quality standard of 100 MG/L CaCo3 in the
lake.
3) Addition of ALL monitoring and limits needed by RPA analysis of the
Roxboro Data provided by RRO at Outfall NPDES Final Outfall 003
(frequency should remain minimal of monthly, as operations are dynamic
and changes in coal, temperature, rainfall, bioreactor performance etc.
greatly affect the outcome at outfall 003 Monitoring should include CCP
highly leachable contaminants: Arsenic Calcium Magnesium, Aluminum,
Strontium Manganese Lithium and Boron.
4) Note the flow measurement for outfall 002 may be inaccurate due to an
ongoing breach of the Outfall 002 dam. Flow measurement from Outfall
003 is calculated by the amount of lake water taken in (pump readings)
without regard to process losses plus the flow estimate at outfall 002. A
pollutant loading in pounds would be difficult to calculate at NPDES

0
Permit No. NC0003425
May 22, 2012
Page 3 of 3
outfall 003 at this facility. Recommend limits in concentration and grab
samples due to the flow measurement limitations at this facility.
5) Fish Tissue Sampling: keep Arsenic, and consider the addition of Mercury,
Selenium, Boron, Manganese, and Thallium.
6) Keeping the annual ESS Biological Monitoring Plan and Results Report for
Hyco Lake as a permit requirement is important, since Hyco Lake will be
studied through the ESS Biological Monitoring Plan.
7) Ash Pond Dam seepage is discharged (indirect discharge) through open
culverts to an internal outfall that eventually flows to Final outfall 003. A
sample of the toe drain indirect discharge was obtained by RRO at the
2009 Ash Pond Impoundment inspections and provided for your review.
Consider the appropriateness of sampling this internal outfall. "Maybe a
seasonal priority pollutant scan would be appropriate"?
Name and Signature o(lnspector:
A4t ��n Romanski
Su�face Water Protection Section
Raleigh Regional Office
Surface WateiProtection Section
Raleigh Regional Office
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7
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. Mike Mosely, Plant Manager
Roxboro Steam Electric Plant
1700 Dunnaway Road
Semora, North Carolina 27343
Division of Water Quality
Charles Wakild, P. E.
Director
April 20, 2012
Dee Freeman
Secretary
Subject: Review of Progress Energy, Roxboro Steam Electric Plant (NPDES Permit NC0003425):
"Proposed Biological Study Plan for 2012".
Dear Mr. Mosely:
Eric Fleek of my staff and Autumn Romanski and Danny Smith from the Raleigh Regional Office (RRO)
have reviewed the proposed 2012 biological study plan for the Roxboro Steam Electric Plant. The initial
study plan was received by the Environmental Sciences Section (ESS) on January 261a. Subsequent to
receiving this plan, ESS and RRO requested 2011 data in order to more accurately address proposed
changes in the 2012 study plan. The 2011 data were received by ESS on March 21st. Eric Fleek of my
staff has been in contact with Garrett Reid concerning the absence of monitoring data for Station 5-D
from the 2011 data. Aside from this matter, we offer the additional comment:
Please consider adding Strontium and Lithium sampling at all existing monitoring locations.
Current research suggests that leachable coal ash contaminants, such as As, Se, B, Sr, and Li,
can easily leach off of coal combustion residues (Ruhl et al. 2010). More specifically, discussions
with Laura Ruhl and Autumn Romanski have indicated the presence of these elements in the
lake. For your convenience, please refer to the attached list of laboratories certified for these
analyses. If progress wishes to gain certification for these parameters, please contact Kent
Wiggins, Section Chief of the Chemistry Lab at 919-733-3908 (ext. 202) or at
kent.wioains(ancdenr.gov for more information on the certification process.
If you have any questions, please do not hesitate to contact me or my staff.
Sincerely,
Jay H. auber
Chief, Environmental Sciences Section
Environmental Sciences Section
1621 Mail Service Center, Raleigh, North Carolina 27699-1621
Location: 4401 Reedy Creek Road, Raleigh, North Carolina 27607
Phone: [phone] \ FAX: [phone]
Internet: htto:lloortel.ncdenr.oralweblwalesslhome
An Equal Opportunity t Affirmative Action Employer
one
NhCarolina
Naturally

•
Mike Mosely
April 10, 2012
Page 2 of 2
References Cited
Ruhl, L.S., A. Vengosh, G.S. Dwyer, H. Hsu -Kim, and A. Deoarine. 2010. Environmental Impacts of the
Coal Ash Spill in Kingston, Tennessee: An 18-Month Survey. Environ. Sci. Technol. 44 (24), pp-
9272-9278.
cc: Kent Wiggins, Section Chief, Chemistry Lab
Danny Smith, Raleigh Regional Office
Autumn Romanski, Raleigh Regional Office
Tom Belnick, Surface Water Protection Section

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-comanski, Autumn
From: Romanski, Autumn
Sent: Wednesday, March 14, 2012 2:07 PM
To: Pugh, James L.
Subject: FW: Classification of Mayo Steam Electric Plant NC0038377
Attachments: image003.gif; image004.gif
James,
As I was doing a staff report for Mayo Plant, I noticed the PC-1 classification did not get changed to PC-2 from
our conversation in 2009.
Can you please update in Bims and send Mayo Plant notification (regarding classification update), if one was
never sent out? RRO does not have a copy in our files.
The ww-2 biological classification is correct in Bims.
Thank you,
Autumn
ALSO: Mandy sent you an e-mail today about correction for the Roxboro Plant NC 0003425, "processes are the
same as Mayo". The classifications in bims should be PC-2, and' -11. Can you please send notification to
Roxboro if one was never sent? RRO does not have a copy in our files.
From: Pugh, James L.
Sent: Friday, September 04, 2009 10:12 AM
To: Hoban, Autumn
Cc: Smith, Danny; Mckay, James; Hall, Mandy
Subject: RE: Classification of Mayo Steam Electric Plant NCO038377
Autumn,
Yes, the Mayo facility will be classified as a PC 2 facility. With the PC classification flow is not a factor, we look at the
process. With the addition of reverse osmosis it will be a 2. 1 will send a letter to the facility notifying them of the
change and you should see the change in BIMS.
James
***Please note new email address: [e-mail]**-
James L. Pugh, Extension Education 6 Training Specialist
NCDWQ, Technical Assistance and Certification Unit
1618 Mail Service Center
Raleigh, NC 27699-1618
[phone] x341

[phone] Fax
[e-mail]
http://h2o.enr.state.nc.us/tacu/
E-mail correspondence to and from this address may be subject to the North Carolina
Public Records Law and may be disclosed to third parties.
From: Hoban, Autumn
Sent: Friday, August 28, 2009 2:12 PM
To: Pugh, James L.
Cc: Smith, Danny; Mckay, James; Hall, Mandy
Subject: Classification of Mayo Steam Electric Plant NCO038377
James,
The RRO recently received request for a minor permit modification for the Mayo Steam Electric Plant
NC0038377.
I have attached the draft permit dated July 29, 2009 by Jim McKay that discusses the addition of reverse
osmosis. I met with Jim this morning and understand we have not yet sent out the final permit modification
with issued date, but we are close. The plant is currently classified in BIMS as a PC-1 and Biological II.
Should the plant be re-classified with the addition of reverse osmosis and resulting reject wastewater to the
Outfall 002, as a PC -II. I do not have the proposed flow information, but Jim probably has it, if flow comes into
play.
Reference:
15A NCAC 08G .0306 CLASSIFICATION OF PHYSICAL/CHEMICAL WATER POLLUTION CONTROL TREATMENT SYSTEMS
(a) My water pollution control system, including systems designed for the remedlation of contaminated groundwater, that utilizes a primarily physical process to treat wastewaters is classified
as a Grade 1 MysicM/Chemical Water Pollution Control System.
(b) Any water pollution control system that ubltzes a primarily tlMmical process to treat wastewaters, including those systems whose treatment processes are augmented by physical processes,
Is classified as a Grade It Mysical/Chemical Water Pollution Control system. Any reverse osmosis, electrodialysis, ultrafitbatlon system m classified as a Grade ❑ Physical/Chemical Water
Pollution Control system.
Could you review and let RRO know if the classification should change? It was our opinion we should propose
that PC I classification should be reclassified as PC II upon the issuance of this minor modification.
Thank you for your time and consideration.
Autumn
�I
Autumn Hoban-Romanski
Environmental Senior Specialist
Division of Water Quality
Surface Water Protection
3800 Barrett Drive
Raleigh, NC 27609
htto://h2o.enr.state. nc. us/
Office: 919-791-4247

Mabile: 919-218-7670
u
Please note my e-mail address has changed:
E-Mail: autumn.hoban@ncdenr.¢ov
E-mail correspondence to and from this address maybe subject to the North Carolina Public Records Law and maybe disclosed to
third parties.

•
Hall, Mandy
From:
Hall, Mandy
Sent:
Wednesday, March 14, 2012 1:50 PM
To:
Rimmer, Jerry
Cc:
Romanski, Autumn
Subject:
Progress Energy Plants - NC FlSNC0038377
Hi Jerry,
The classifications for the subject facilities are incorrect - they are only classified as PC systems but SHOULD also be
Grade II Biological because they have Grade II Package Plants for their domestic waste that discharge to the common
outfalls associated with the plants.
Please let me know if you have questions,
Mandy
Mandy 1-,"e n HaU,
WWTP Consultant
NCDENR-DWQ-SWP
919-791-4254 P
919-788-7159 F
3800 Barrett Drive
Raleigh NC 27609
www.ncwaterquaIity.org
Pc -
0\�
Entail entreepandence to and from this add,. is subject to the North Carolina Public Records Lase end mn be disclosed
to third parties unto, the content is esesupt by statute orother regulation.
let
a

L�
Romanski, Autumn
From:
Landry, Natalie
Sent:
Monday, March 12, 2012 12:10 PM
To:
Romanski, Autumn
Subject:
roxboro steam plant
Hi Autumn,
I just received a call from Shannon Langley. He was calling to notify DWQ that the plant (NC0003425) will be taking
down the 4`" Unit for maintenance this Saturday through Sunday and will be draining the cooling tower to the ash pond.
They will measure flow and pH as required by the permit and report it on their DMR. He said you can call him at 919-
546-2439 if you have any questions.
How should I enter that into RIMS? As a noncompliance or just other?
Thanks. Natalie
Natalie Landry
NCDWQ Raleigh Regional Office
3800 Barrett Drive
Raleigh, NC 27609
phone: [phone]
email: [e-mail]

AT
RUDER 9
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor Director
Secretary
February 8, 2012
Mr. Mike Mosley
Plant Manager
Progress Energy Carolinas, Inc.
Roxboro Steam Electric Generating Plant
1700 Dunnaway Rd.
Semora, NC 27343
Subject: Compliance Evaluation Inspection (Revised)
NPDES Permit No. NC0003425
Roxboro Steam Electric Generating Plant
Person County
Dear Mr. Mosley:
This letter supersedes the Compliance Evaluation Inspection Letter dated October 13, 2011, which
contained incorrect reference in Item 6 (correct reference is underlined and highlighted).
On September 27, 2011, Cheng Zhang and Autumn Romanski of the Raleigh Regional Office (RRO)
conducted a compliance evaluation inspection of the subject facility. The assistance of Ms. Amber
Ramey, Mr. Robert Howard, and Mr. Shannon Langley, was appreciated as it facilitated the inspection
process. The inspection report is attached. The following observations were made:
Progress Energy Carolinas, Inc., Roxboro Steam Electric Generating Plant is authorized to operate
the following systems: ash pond treatment system, heated water discharge canal system, cooling
tower blowdown system, coal pile runoff treatment system, domestic wastewater treatment system,
chemical metal cleaning treatment system, and flue gas desulfirrization (FGD) treatment system.
The final effluent is discharged into the Hyco Lake, classified WS-V & B waters in the Roanoke
River basin.
1. The newly built east FGD pond and refurbished west FGD pond are redundant, at the time of
this inspection only the west FGD pond was in use to receive FGD blowdown water and
supernatant from the nearby bioreactor flush pond. Supernatant from the FGD pond is treated
by the bioreactors and then discharged in to the canal at Outfall 010.
Nol
rdiCaro ina
✓Vatmrally
North Carolina Division of Water Quality 1628 Mail Service Center Raleigh, NC 27699-1628 Phone [phone] Customer
service
Internet: www.ncwaterquality.org Location: 3800 Barrett Drive Raleigh, NC 27609 Fax [phone]
An Equal Opportunity/Afinnative Action Employer- 50% Recycled/10% Post Consumer Paper

SGWASA WTP •
NPDES Permit No. NC0058410
Compliance Evaluation Inspection
2: " An alum feeding system, which is comprised of two 250-gallon totes, pump, and solar power
—panels is TV5101e to feed alum to the channel in the west ash pond. The system was not
running at the time of the inspection because the plant was not running wet ash.
3. The domestic wastewater treatment system was operated properly. The aeration basin was
reseeded in July 2011.
4. The coal pile runoff treatment system was observed during the inspection. It was noted that the
proposed sodium hydroxide feed system had not been constructed yet. Caustic is fed to the
runoff manually.
5. Lab results, chain -of -custody forms, and DMRs were complete and current, kept in good order
and ready for review. June 2011 DMR data were compared to lab results; no discrepancies
were noted.
6. Outfalls 002, 003, 006, 008, and 010 were observed during the inspection. It was noted that
there were several leaking spots at outfall 002, not all effluent flew through the v-notch weir,
which affects the accuracy of estimating the flow from the outfall. This problem had been
enclosed copy of the Memorandum). Mr. Langley stated that Progress Energy had hired a
consultant to evaluate the problem. Please resolve this problem and respond to RRO in
writing within 90 days of receipt of this letter.
The overall condition of the subject facility is compliant with Division standards. If you have any
questions regarding the attached report or any of the findings, please contact Cheng Zhang at: (919)
791-4200 (or email: (cheng zhang_(a)ncdenr.gov)).
Sincerely,
Cheng Zhang Auturnit Romanski
Environmental Specialist Environmental Senior Specialist
Attachments: Memorandum to EPA from DWQ RRO
Cc: Central Files w/attachment
Raleigh Regional Office w/attachment
Amber Ramey - Roxboro Steam Electric Generating Plant

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Cee Freeman
Governor
Director Secretary
November 16, 2009
MEMORANDUM
To:
Mr. Jim Kohler, P.E.
Environmental Engineer LT, U.S. Public Health Service
U.S. Environmental Protection Agency
Office of Resource Conservation and Recovery
From:
Autumn Hoban Romanski
Raleigh Regional Office, Surface Water Protection Section
Division of Water Quality
Through:
Danny Smith f
Raleigh Regional Office, Surface Water Protection Section
Division of Water Quality
Subject:
Impoundment Inspection Comments
Roxboro Steam Electric Power Plant
NPDES Wastewater Discharge
Permit No. NC0003425
On September 1, 2009, Autumn Hoban Romanski of the Raleigh Regional Office (RRO) Surface Water
Protection Section (SWP) North Carolina Division of Water Quality (NC DWQ) participated in the Coal
Combustion Waste (CCW) Surface Impoundment Assessment conducted at the Roxboro Plant Site in
Person County North Carolina. The EPA's Impoundment Condition Assessment was satisfactory for
the West Ash Pond Dam and fair for the Flue Gas Desulfurization (FGD) Settling Pond and FGD Flush
Pond wastewater treatment units at the Roxboro Plant Site. This memorandum is provided in
response to your request for comment on the draft report regarding the subject facility.
A NC DWQ annual NPDES Wastewater Discharge Permit Inspection at the Roxboro Steam Electric
Power Plant was conducted on May 27, 2009. This inspection was conducted to verify/determine the
compliance status of this facility with the conditions and limitations specified in NPDES Wastewater
Permit No. NC0003425.
While the facility was reported to be compliant with NPDES permit conditions, the site has been
required to provide additional sampling and monitoring to NC DWQ since March of 2008.
The RRO SWP staff of the NC DWQ has reviewed the draft EPA report and offers the following
corrections and observations for consideration in the final report development:
1) The report identifies/explains that the toe drains from the West Ash Pond Dam outlet to Hyco
Lake. This is not accurate. The toe drains from the West Ash Pond outlet to a mixing zone, at
the confluence of outfall 002 and the heated water discharge canal, prior to the final outfall at
003 to Hyco Lake. The toe drains are an internal outfall.
Page 1 of 3

)i
Roxboro Impoundment RRO Comments
2) The report accurately explains that the West Ash Pond Dam is regulated by the NC Utilities
Commission. However, NC DWQ regulates the NPDES wastewater treatment units and
respective discharges associated with the wet ash.
3) The draft report states_
The statement underlined above is accurate. In keeping with the findings of the EPA report, NC
DWQ observed the West Ash Impoundment and the permitted wastewater treatment units
constructed within the West Ash Pond. These treatment units discharge under the current NPDES
Discharge Permit. It is noted that current construction plans for repairs of the existing FGD Settling
Pond and the design of a new FGD Settling Pond indicate the elevation of the new FGD Settling
Pond will be raised an additional 4 feet. (Saturation of ash/groundwater table elevations are
recorded in Progress Energy's geotechnical data.)
4.
5.
R
3
0
In a written response to the NC DWQ's NPDES inspection from May 2009, the Progress Energy
Roxboro facility explained the following:
• Progress Energy recently completed bathymetry work for the existing ash pond
(excluding the footprint of the currently constructed FGD wastewater treatment units ).
The volume of the Roxboro Ash Pond as surveyed on September 17 & 18, 2009 is
563,217 cubic yards. This is based on the water surface elevation of 462.13 ft MSL
(NAVD88) taken at the time of the bathymetry survey. The volume of the pond after the
2007 bathymetry survey was 445,149 cubic yards at a water surface elevation of 458.7 ft
MSL (NAVD88).
• Available freeboard — The elevation of the ash pond dam crest is 470 ft. The design
water elevation is 463 ft with a maximum water elevation of 465 ft. Water elevation
surveyed during the last bathymetry event was 462.13 at the time of the survey.
The Roxboro Plant is located within the Piedmont Physiographic Province and near the Milton
and Charlotte Belts. More specific geologic details of the site can be found on the North
Carolina Geologic Map last dated 1985, as well as, in Progress Energy's geotechnical data.
The Roxboro Steam Electric Plant is located approximately 6.5 miles downstream of the Town
of Roxboro's surface water supply intake. This intake is located on South Hyco Creek and is
classified as Water Supply (WS-ll) High Quality Waters (HQW) critical area (CA) in the
Roanoke River Basin.
The power plant intakes and discharges water from Hyco Lake classified as Class B Primary
Rerreation. Water Supply (WS-V) waters in the Roanoke River Basin.
Much of the vegetative cover and side slopes
vegetative cover that inhibited full observation
Ash Pond were clear of vegetation.
of the Ash Pond Dam consisted of a tall, thick
of all slopes. The toe drain slopes of the West
The EPA report explains the discharge ends of the concrete swales are undermined. Further
the report states that this was not part of a dam safety concern due to the distance from the toe
of the dam. NC DWQ staff agrees that the toe drains of the dam showed signs of erosion
around the cement. These drains which convey intemal dam seepage should be inspected
frequently (e.g. weekly) to ensure stability and proper operation of the dam. [During the site
visit seven toe drains with the exception of the middle toe drain were discharging]
The #3 Summary Recommendation in the EPA report is to quantify the seepage/discharge rate
from the toe drains. The RRO concurs with this recommendation. (Note: EPA and NC DWQ
observations indicated that one of the toe drains showed evidence of soil transport, the subject
of the # 2 Summary Recommendation in the EPA report.]
Page 2 of 3

i�
Roxboro Impoundment RRO Comments
10. The northwest berm of the West Ash Pond by the NPDES internal outfall 002, had apparent
seepage at the discharge weir from beneath the concrete abutment that appears to be coming
from the rock foundation, as described in the EPA report. This is of concern to the Raleigh
Regional Office from an NPDES discharge standpoint. The additional flow could alter
measurements/sampling results at other NPDES outfalls. (Note: Based on boring data
recorded in the geotechnical data received by the Raleigh Regional Office on January 26,
2009, no groundwater was found at 9 feet (depth of augur refusal) at location GP-8 (the closest
boring data location to outfall 002). This paragraph is the subject of the #5 Summary
Recommendation in the EPA report.
11. The EPA report # 4 Summary Recommendation is to continue monitoring the seepage at
the toe of the West FGD Settling Pond.
Note: repair efforts are currently ongoing and permitted/addressed through NPDES permit
conditions. The FGD Flush Pond was under construction, as repairs for this treatment unit
were underway the day of this inspection.
If you have any questions or if I can be of further assistance, please do not hesitate to contact me
Cc: Raleigh Regional Office — DWQ SWP and DLQ Files
Page 3 of 3

C Progress Energy
1252OX January 9, 2012
Mr. Ken Pohlig
NC Division of Water Quality
Construction Grants and Loans
1633 Mail Service Center E
Raleigh, NC 27699-1633
JAN 10 2012
Subject: Roxboro Steam Electric Plant
Authorization to Construct No. 003425A08 NC DENR
Engineer's Certification Rai�i0 PfMnal Office
Dear Mr. Pohlig:
Attached is the signed Engineer's Certification for the subject Authorization allowing Progress
Energy to start up the Sodium Hydroxide feed pump and delivery system into the coal pile runoff
ditch.
In accordance with the requirements of the A to C, verbal notification was provided to the
Raleigh Regional Office (Mitch Hayes) on January 6, 2012.
Please contact Mr. Shannon Langley at [phone] if you have any questions about this
submittal.
I certify, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate
the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best ofmy knowledge and
belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information,
including the possibility offtnes and imprisonment for knowing violations.
Regards,
Mike Mosley'
Plant Manager
Cc: Shannon Langley
Barry Herzberg — DWQRRO
1628 Mail Service Center
Raleigh, NC 27699-1628
Progress Energy Carolinas, Inc.
Roxboro Steam Plant
1700 Dunnaaay Road
Semma, NC 27343

Progress Energy Carolinas, Inc.
Roxboro Steam Station
A To C No. 003425A08
Issued June 29, 2010
Engineer's Certification
I, 14r i s4opiter C. tt SehrI04, , as a duly registered Professional Engineer in the
State of North Carolina, having been authorized to obsery eriodic weekly/full time) the
construction of the modifications and improvements to the Roxboro Steam Plant FGD
Wastewater System, located on NCSR 1377 in Person County for Progress Energy, hereby state
that, to the best of my abilities, due care and diligence was used in the observation of the
following construction:
aso ka tt(A 2 +o4 164 11b112
A 3;A99 gallon Sodium Hydroxide chemical storagexank with feed pump and delivery
system into the coal pile runoff drainage ditch, which feeds into the Coal Pipe Runoff
Pond (prior to Outfall 006), in conformity with the project plans, specifications, and
other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature 4�Registration No. 13719
Date l [ (0 2
Send to: Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633

DUKE
. ' ENERGY
File No. 12520 M
Mr. Jay Sauber
Environmental Sciences Section
NC Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Subject: Duke Energy Progress
Roxboro Steam Electric Plant (NPDES Permit NC0003425)
2012 Environmental Monitoring Report
Dear Mr. Sauber:
Duke Energy Progress
ROXBORO STATION 1 1700 Dunnaway Road
Semora, NC 27343
July 24, 2013
AUG - 1 2013
Please find enclosed two copies of the Roxboro Steam Electric Plant 2012 Environmental
Monitoring Report as required by the subject NPDES permit.
1 certify, under penalty of law, that this document and all attachments were
prepared under my direction or supervision in accordance with a system designed
to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief, true, accurate, and complete.
1 am aware that there are significant penalties for submitting false information,
including the possibility offines and imprisonment for knowing violations.
Should you have any questions or require further information, please contact Mr. Reid Garrett of
Duke Energy Progress Water Resources at [phone].
Enclosure
Reh/wrg
c: Mr. Robert Curry (NCWRC)
Mr. Gordon Myers (NCWRC)
Mr. Shannon Langley (w/o enclosure)
Regards,
Mike Mosle�
Plant Manager
Roxboro Steam Electric Plant
www. du ke-energy. corn

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ROXBORO STEAM ELECTRIC PLANT
2012 ENVIRONMENTAL MONITORING REPORT
July 2013
Water and Natural Resources
Environmental Services
DUKE ENERGY PROGRESS
Raleigh, North Carolina

Now
Roxboro Steam Electric Plant 2012 Er nmental Monitoring Report
Preface
This copy of the report is not a controlled document as detailed in the Environmental Services Biology
Program Quality Assurance Manual. Any changes made to the original of this report subsequent to
the date of issuance can be obtained from:
1
Director
Water and Natural Resources
Environmental Services
goo Duke Energy Progress
09 410 South Wilmington Street
04 Raleigh, North Carolina 27601
0
04
at
4
0 s
04
04
00
IN
a Duke Energy Progress i Water and Natural Resources

Roxboro Steam Electric Plant 2012 Environmental Monitoring Report
Table of Contents
Page
Preface.........................................................................................................................................
i
..
Listof Figures..............................................................................................................................
iii
Listof Appendices.......................................................................................................................
iii
Metric -English Conversion and Units of Measure......................................................................
v
Water Chemistry Abbreviations..................................................................................................
v
ExecutiveSummary........`...........................................................................................................
vi
2012 Environmental Monitoring Report.....................................................................................
1
HistoricalOverview...............................................................................................................
1
ReservoirDescription............................................................................................................
2
Objectivesand Methods........................................................................................................
3
Results of Environmental Monitoring During 2012..............................................................
8
Limnology........................................................................................................................
8
Temperature and Dissolved Oxygen.........................................................................
8
WaterClarity Constituents........................................................................................
8
Nutrients and Phytoplankton Biomass.......................................................................
9
Ions, Hardness, and Specific Conductance................................................................
9
Alkalinityand pH......................................................................................................
9
TraceElements................................................................................................................
10
Arsenic.......................................................................................................................
10
Cadmium....................................................................................................................
10
Copper........................................................................................................................
10
Mercury......................................................................................................................
11
Selenium....................................................................................................................
11
Thallium.....................................................................................................................
12
Fisheries...........................................................................................................................
12
Fish Species Composition..........................................................................................
12
Fish Abundance, Distribution, and Size Structure.....................................................
13
Balanced Indigenous Population...............................................................................
14
FishCommunity Health.............................................................................................
16
BiofoulingMonitoring.....................................................................................................
16
Summaryand Conclusions..........................................................................................................
16
References.............................................................................:......................................................
18
h.. L.. C......... 11..........E 10 u. ...

OV
00
Roxboro Steam Electric Plant 2012 En nmental Monitoring Report
09
00
List of Tables
0
Table
Pace
oe
I
Hyco Reservoir environmental monitoring program ...............................................
so
00
2
Field sampling and laboratory methods utilized in the Hyco Reservoir
so
environmental monitoring program.........................................................................
6
00
3
Statistical analyses performed on data collected for the Hyco Reservoir
00
environmental monitoring program.........................................................................
7
00
■�
List of Figures
0,
Page
■'
00
1
Hyco Reservoir sampling locations.........................................................................
4
L
'7
List of Appendices
oo
Appendix
pace
•ly
1
Depth profiles of water temperature, dissolved oxygen, pH, and specific
00
conductance at Hyco Reservoir during 2012...........................................................
19
2
Means, ranges, and spatial trends of selected limnological variables from the
surface waters of Hyco Reservoir during 2012.......................................................
21
N _
3
Concentrations of chemical variables in surface waters of
I _
Hyco Reservoir during 2012....................................................................................
22
4
Long-term trends of selected parameters at Station 2B from Hyco Reservoir
ti
from 2003 through 2012..........................................................................................
24
5
Long-term trends of selected parameters at Station 3B from Hyco Reservoir
from2003 through 2012..........................................................................................
25
_
6
Long-term trends of selected parameters at Station 4B from Hyco Reservoir
0_
from 2003 through 2012..........................................................................................
26
7
Long-term trends of selected parameters at Station 6B from Hyco Reservoir
t
from 2003 through 2012..........................................................................................
27
8
Means and standard errors of trace element concentrations in sediments and
muscle tissue of fish by transect from Hyco Reservoir during 2012.......................
28
ti
NL_
Duke Energy Progress III Water and Natural Resources

Roxboro Steam Electric Plant 2012 Environmental Monitoring Report
9 Long-term trends of selenium concentrations in bluegill, largemouth bass,
white catfish muscle tissues at Transect 3 and Transect 4 from
Hyco Reservoir from 2002 through 2012................................................................ 29
10 Total number and weight of fish collected with electrofishing from Hyco
Reservoirduring 2012............................................................................................. 30
11 Mean catch per hour of fish collected with electrofishing by transect from Hyco
Reservoirduring 2012............................................................................................. 31
12 Length -frequency distributions of bluegill by transect collected with
electrofishing from Hyco Reservoir during 2012.................................................... 32
13 Length -frequency distributions of largemouth bass by transect collected with
electrofishing from Hyco Reservoir during 2012.................................................... 33
14 Length -frequency distributions of gizzard shad by transect collected with
electrofishing from Hyco Reservoir during 2012.................................................... 34
15 Relative weight values versus length of bluegill, gizzard shad, and largemouth
bass collected with electrofishing at Transect 3 from Hyco Reservoir
during2012............................................................................................................. 35
16 Relative weight values versus length of bluegill, gizzard shad, and largemouth
bass collected with electrofishing at Transect 4 from Hyco Reservoir
during2012.............................................................................................................. 36
17 Proportional Stock Density (PSD) ranges for balanced populations of
largemouth bass and bluegill collected from Hyco Reservoir during 2012........... 37
n_______ iv Watnr and Natural RPSOIIrcBS

Roxboro Steam Electric Plant 2012 En imental Monitoring Report
Metric -English Conversion and Units of Measure
Length
1 micron (µm) = 4.0 x 10-5 inch
1 millimeter (mm) = 1000 µm = 0.04 inch
I centimeter (cm) = 10 mm = 0.4 inch
1 meter (m) = 100 cm = 3.28 feet
1 kilometer (km) = 1000 in = 0.62 mile
Area
1 square meter (m2) = 10.76 square feet
1 hectare (ha) = 10,000 m2 = 2.47 acres
Volume
I milliliter (ml) = 0.034 fluid ounce
1 liter = 1000 ml = 0.26 gallon
1 cubic meter = 35.3 cubic feet
I Cl' - Chloride
SO'-4 - Sulfate
CaZ+ - Total calcium
Mgz+ - Total magnesium
Na+ - Total sodium
TS - Total solids
Weight
1 microgram (µg) = 10-3 mg or
10"6 g = 3.5 x 10-8 ounce
1 milligram (mg) = 3.5 x 10'5 ounce
1 gram (g) = 1000 mg = 0.035 ounce
1 kilogram (kg) = 1000 g = 2.2 pounds
l metric ton = 1000 kg = L I tons
1 kg/hectare = 0.89 pound/acre
Temperature
Degrees Celsius (°C) = 5/9 (°17-32)
Specific Conductance
VS/cm = Microsiemens/centimeter
Turbidity
NTU = Nephelometric Turbidity Unit
Water Chemistry Abbreviations
TDS - Total dissolved solids Al - Total aluminum
TSS - Total suspended solids As - Total arsenic
TOC - Total organic carbon
Cd - Total cadmium
TP - Total phosphorus Cu - Total copper
TN - Total nitrogen Hg - Total mercury
NH3-N - Ammonia nitrogen
NO3+ NO2-N - Nitrate +nitrite -
nitrogen
Se - Total selenium
I — Duke Energy Progress v Water and Natural Resources

Roxboro Steam Electric Plat.. 2012 Environmental Monitoring Report
Executive Summary
Despite receiving a thermal discharge, the fish community in Hyco Reservoir remained a self-
sustaining, balanced population of regionally common species during 2012.
Concentrations of the target trace elements, including arsenic, cadmium, copper, mercury, and
selenium, measured in the reservoir surface waters remained below water quality criteria during 2012.
However, selenium concentrations in sediments and in the tissues of catfish, bluegill, and largemouth
bass continued to be statistically greater at the station near the discharge compared to the
concentrations of these parameters at the headwater station.
During 2012 a number of limnological variables measured in Hyco Reservoir surface waters
N
including calcium, chloride, hardness, total dissolved solids, and specific conductance trended up
apparently due to the operations of the Roxboro Plant flue gas desulfurization systems. The annual
mean temperatures observed in 2012 were within the range observed in previous years.
Duke Energy Progress vi Water and Natural Resources

low
Roxboro Steam Electric Plant 2012 Environmental Monitoring Report
Roxboro Steam Electric Plant
2012 Environmental Monitoring Report
"A
'b Historical Overview
Duke Energy Progress (DEP; formerly Carolina Power & Light) began construction of Hyco
009 Reservoir in 1963 to serve as a cooling water source and receiving water for discharges from the
ab Roxboro Steam Electric Plant (Roxboro Plant). After reaching full pool in 1965, the reservoir was
00 noted as a popular fishery throughout the remainder of the 1960s and most of the 1970s. In 1980, a
large-scale fish kill was observed throughout much of the reservoir after the start-up of Unit 4.
Biological monitoring conducted by DEP noted continued declines in the fishery. Special
00 experimental bioassay studies ultimately determined that elevated concentrations of selenium in the
0" water, the food chain, and the tissues of fish were responsible (i.e., reproductive impairment) for the
a" observed sport fishery decline in Hyco Reservoir. As a result of elevated selenium concentrations in
00 fish flesh, the North Carolina Division of Health Services, Department of Health and Human Services,
0" issued an advisory in August 1988 recommending limitations on human consumption of all fish
0" species from Hyco Reservoir. In 1989, DEP constructed a dry ash handling system to reduce selenium
weinput into Hyco Reservoir.
06 Since 1990, biological monitoring studies conducted under the Roxboro Plant National
0% Pollutant Discharge Elimination System (NPDES) permit have demonstrated the effectiveness of the
00 dry fly ash handling system in limiting the amount of selenium entering the reservoir (CP&L 1991 and
01 2001, PEC 2008). Selenium concentrations quickly decreased in the water after the dry fly ash
Oft handling system began operation and have remained below the North Carolina water quality criterion
�of 5µg/liter since 1990. Changes in the aquatic community also reflected the reduced selenium loading
00 into the reservoir. A gradual shift from selenium -tolerant fish species to species more typical of
100 southeastern piedmont impoundments was observed following the commencement of dry ash handling
00 operations.
The fish consumption advisory was modified several times during the recovery period to
remove species from the consumption advisory list as selenium concentrations in the tissues of each
individual fish species declined below the established threshold level i.e., 25 � P (' µg/g at the time). In
August 2001, the fish consumption advisory was completely rescinded. Hyco Reservoir limnological
variables remained mostly unchanged during the period from 2002 through 2006 and were within the
range of values expected for a North Carolina piedmont impoundment. During 2007, Hyco Reservoir
was subjected to the most extensive drought on record (based on 110-year USGS streamflow records)
Duke Energy Progress 1 vvater and Natural Resources

Roxboro Steam Electric Plant 2012 Environmental Monitoring Report
in North Carolina, which affected water levels within the reservoir. The water levels decreased from
full pool of 124.9 meters National Geodetic Vertical Datum (NGVD) during May 2007 to slightly
greater than 123.4 meters NGVD in October 2007 when a significant rain event finally reversed the
decreasing trend in reservoir water levels. The drought event and subsequent decrease in lake level was
quite significant given that impacts to plant operations begin to occur when reservoir levels reach
123.4 meters NGDV. Despite the months of minimal flushing of the reservoir, no overall changes to
limnological variables, including selenium concentrations, were noted during 2007 when compared to
previous years. However, an increase in the mean selenium concentrations was observed in muscle
tissues of fish located near the power plant discharge to Hyco Reservoir. While no increase in mass
loading to Hyco Reservoir occurred during this period due to plant operations, decreased reservoir
flushing likely allowed more selenium to enter the food web and thus influenced tissue concentrations
in fish and other trophic level species.
With the passage of the North Carolina Clean Smokestacks Act of 2002, coal-fired power
plants were required to reduce sulfur emissions 73 percent by 2013. To meet the requirement, Flue
Gas Desulfinization (FGD) systems (one on each of the four units) were installed at the Roxboro Plant
and began discharging wastewater from these treatment systems in February of 2008. Since then,
several reservoir limnological constituents including calcium, chloride, hardness, and total dissolved
solids have gradually increased throughout the reservoir. However, trace elements such as copper and
selenium in surface waters have generally remained either below the laboratory reporting limits and/or
below water quality criteria.
Reservoir Description
Hyco Reservoir, an impoundment of the Hyco River, is located approximately 5 km south of
the North Carolina/Virginia border in Person and Caswell Counties in the northern Piedmont of North
Carolina. The reservoir water level reached full pool elevation in 1965. Hyco Reservoir serves as a
cooling lake and source of water for the Roxboro Plant.
Hyco Reservoir has a surface area of 17.6 kM2 (1760 ha); a volume of 9.62 x 107 m3; a drainage
area of 471 km2; a mean depth of 6.1 in; a normal elevation of 125.1 in NGVD; an average inflow of
5.7 m3/second; and a mean residence time of approximately 6 months. The land use along the 256-km
shoreline is primarily residential, forested, and agricultural. It is classified by the Division of Water
Quality as Class B usage designation, which is defined as suitable for primary recreation, aquatic life
propagation and maintenance, wildlife, and agriculture. Additionally, Hyco Reservoir is classified as

Roxboro Steam Electric Plant 2012 Environmental Monitoring Report
I
!� Water Supply V, which is designated as waters used by industry to supply their employees, but not
municipalities or counties, with a raw drinking water supply source.
Sampling transects and stations were selected based on their location relative to the
1 configuration of power plant effluents entering the main body of the reservoir at Transect 4 (Figure 1).
010 Transects 2 and 3 are located in the upper reservoir in the North Hyco Creek and South Hyco Creek
0% arms, respectively. Transect 6 is located in the lower reservoir adjacent to the spillway.
1
♦ Objectives and Methods
Oft
040 The primary objective of the Roxboro Plant environmental monitoring program conducted
oft during 2012 was to providb an assessment of the effect of power plant operations on the water and
041� aquatic organisms in Hyco Reservoir. Secondary objectives of the program were to document any
0" other environmental factors impacting the aquatic community and the impact of introductions of non-
0" native aquatic plant and animal species into the reservoir. These objectives were consistent with the
biological monitoring requirements in the NPDES Permit NC0003425.
0051
0" Limnology (water quality, water chemistry, and chlorophyll a) and trace elements in fish
"7 tissues and sediments were assessed at various locations in the reservoir (Figure 1; Tables 1 and 2), and
the results were analyzed using appropriate statistical methods (Table 3). Further, key limnological
variables were assessed at locations considered potentially impacted by the power plant discharge
Transect 4 and minimally b the power plant Transect 3 The water chemistry
� ( ) Y Y P P ( )• try portion of the
limnological variables was performed by laboratories certified by the State of North Carolina in water
and wastewater testing. Trace element analyses of sediment and tissues of fish were conducted by
either by Texas Agrilife Research (Texas A&M University) or by the DEP personnel using approved
in-house procedures and x-ray defraction equipment. The accuracy and precision of laboratory
analyses of water chemistry and trace element data were determined with analytical standards, sample
replicates, and reference materials. For calculation of means in this report, concentrations less than the
reporting limit and not estimated were assumed to be at one-half the reporting limit.
All
Duke Energy Progress 3 Water and Natural Resources

Roxboro Steam Electric Plal._ 2012 t_nvlronmental Monitoring Report
i
\
_r
l
Lr
i
u
I
Noah Nyco River
0 05 1 2
1
Miles
Cam Creek "aefhay
Reservoir
Spumy
4 L
y CA 8'
EA
B Al
I
(outratl E008) Auxiliary Intake
Discharge �- S
�F. (Outlall $003) , iD
E 4
C
B
A �
A e ,I
C C
Person-casvrek
Lake Authority
South
Nyco River
Figure 1. Hyco Reservoir sampling locations.
Gypsum /
Seek g
PofiT
&oreactn\
3
B C
s _Intake
CPnal
Gypawn Storage Pad
Dry
Ash
i� Ash
Pond
N1
0 075 15 3
Kdometem I
Duke Energy Progress 4 Water and Natural Resources

00
0* Roxboro Steam Electric F1011, 20 is environmental Monitoring Report
Table 1. llyco Reservoir environmental monitoring program.
Oft
a"
00
00
00
0"
a"
O!
0"
Oft
oft
s�
A
on
Program Frequency Location
Water quality Alternate calendar months
(February, April, June, August, October,
December)
Water chemistry Alternate calendar months
(including trace (February, April, June, August, October,
elements in water) December)
Phytoplankton' Alternate calendar months
(February, April, June, August, October,
December)
Chlorophyll a Alternate calendar months
(February, April, June, August, October,
December)
Zebra mussels Alternate calendar months
(February, April, June, August, October,
December)
Electrofishing Once every three calendar months
(March, June, September, December)
Trace elements Once per calendar year (spring)
(fish & sediments)
Stations 2B, 313, 413, 6B (surface
to bottom at I-m intervals)
Stations 213, 3B, 4B, 6B (surface)
Stations 213, 3B, 413, 6B
Stations 213, 3B, 413, 6B
Main intake structure or water
quality station buoys
Stations IA, 1C, 2A, 2C, 3A, 3C,
4A,4E,6A,6C
Transects 3 and 4
+Phytoplankton samples were collected and preserved but were not identified because all chlorophyll a
concentrations measured during 2012 were less than 40 mg/L.
Duke Energy Progress 5 Water and Natural Resources
ea

Roxboro Steam Electric Plant 2012 Environmental Monitoring Report
0
Table 2. Field sampling and laboratory methods utilized in the Hyco Reservoir environmental
monitoring program.
Method
Water quality Temperature, dissolved oxygen, pH, and specific conductance were measured with
a YSI® multiparameter instrument. Measurements were taken from the surface to
the bottom at 1-m intervals. Turbidity was measured in the surface waters only
with either a YSI® multiparameter instrument or a HACH Model 2100P
turbidimeter. Water clarity was measured with a Secchi disk.
Water Samples were collected with a nonmetallic sampler, transferred to appropriate
chemistry containers, transported to the laboratory on ice, and analyzed according to
applicable analytical methodologies.
Phytoplankton Equal amounts of water from the surface, the Secchi disk transparency depth, and
twice the Secchi disk transparency depth were obtained with a Van Dom beta
sampler and mixed in a plastic container. A 250-mL composite subsample was
taken and preserved with 5 mL of "MY fixative.
Chlorophyll a Equal amounts of water from the surface, the Secchi disk transparency depth, and
twice the Secchi disk transparency depth were obtained with a Van Dom beta
sampler and mixed in a plastic container. A 1000-mL composite subsample was
taken. The samples were placed in dark bottles and transported to the laboratory
on ice. In the laboratory, 250-mL subsamples were analyzed (APHA 1995).
Trace elements Water, sediments, and muscle tissue of selected fish were analyzed by standard
analytical techniques in the laboratory for selected trace metals and metalloids. All
media, except water, were homogenized and freeze-dried. Smaller -sized tissue
samples were analyzed by Texas Agrilife Research, Texas A&M University. Most
samples were analyzed in-house by x-ray spectrophotometry. Quality control was
achieved by analytical standards, replicates, and certified reference materials.
Mussel surveys Hardened structures such as docks and buoys were visually inspected for the
presence of zebra mussels and quagga mussels during routine water quality
monitoring.
Duke Energy Progress 6 Water and Natural Resources

i00
04 Roxboro Steam Electric Mane 2012 tnvironmental Monitoring Report
0 --
04 Table 3. Statistical analyses performed on data collected for the Hyco Reservoir environmental
04 monitoring program.
Program
Variable
Statistical test(s)/model(s)+
Main effect(s)
504
04
Water quality
Water temperature, specific
One-way, block on month
Station
04
conductance, Secchi disk
04
transparency depth, and
04
selected chemical variables
04
04
Water chemistry
Selected chemical variables
One-way, block on month
Station
04
Trace elements
Al, As, Cd, Cu, Hg,
One-way, block on month
Station
04
Se (water)
04
As, Cd, Cu, Hg, Se
One-way
Transect
04
(sediment and fish)
opq
all
Phytoplankton
Chlorophyll a
One-way, block on month
Station
+One-way Analysis
of Variance (ANOVA) statistical models were used. A Type I error rate of 5% (a =
0.05) was
used to judge the significance
of all tests. Fisher's protected
least significant
y
difference
(LSD) test was applied to determine where differences in means occurred for
significant
ANOVA models.
w
ILW
06
1
b
b
ti,
i�
� Duke Energy Progress 7 Water and Natural Resources

Roxboro Steam Electric ....nt 2 Environmental Monitoring Report
Results of Environmental Monitoring During 2012
Limnology
Temaerature and Dissolved Oxveen
• Hyco Reservoir generally exhibited variable thermal stratification defined as changes in water
temperatures of greater than 2°C over a 1 meter change in depth of the water column during 2012
(Appendix 1). The strongest stratification at the deepest station (Station 413) occurred within a few
meters of the bottom with no apparent pattern related to season of the year. Several factors
influence thermal stratification at Station 4B including the proximity to the Roxboro Plant
discharge, circulating water auxiliary intake system, and natural ambient conditions. The surface
water temperatures at Station 4B ranged from 22.2°C in February to 36.1 °C in August. The coolest
temperature of 10.6°C was measured at the surface at Station 3B in February. The annual mean
surface temperature at Station 4B was 28.0°C, which was significantly greater than the mean
surface temperatures at the other sampling stations, as expected (Appendix 2).
• Dissolved oxygen concentrations were generally greater than 5 mg/L throughout the water column
of Hyco Reservoir during 2012 except in deeper waters, as expected (Appendix 1). Several
stations monitored in 2012 exhibited a moderately strong clinograde oxygen profile with bottom
waters less than 5 mg/L during June and August.
• Greater volume of anoxic waters might occur within Hyco Reservoir were it not for use of a deep
water auxiliary intake from May through October each year. The operation of this intake results in
much of the reservoir remaining well -mixed to greater depths than would be expected otherwise.
Water Clarity Constituents
• Measurements of water clarity including Secchi disk transparency and turbidity varied significantly
among the stations in Hyco Reservoir during 2012 (Appendix 2). Generally clearer waters were
observed in the larger, more open portions of the reservoir at the downstream stations compared to
the values at the upstream stations. The annual mean Secchi disk transparencies were statistically
greatest at Stations 4B and 6B compared to the measurements at the upper Stations 2B and 3B.
Likewise the annual mean turbidity measurements, which are generally inversely related to Secchi
disk transparency, tended to be lower in the lower reservoir. The annual mean turbidity exhibited
the following decreasing order in Hyco Reservoir during 2012: Station 3B>2B>4B>6B.
1
1
1
1
1
Duke Energy Progress a Water and Natural Resources

MOO
Roxboro Steam Electric I .....t 20 — _nvironmental Monitoring Report
Nutrients and Phytoplankton Biomass
While there were minor statistical differences in total nitrate+nitrite-nitrogen and total
pot
024 phosphorous during 2012, all nutrient concentrations were considered to be low in concentration
one throughout Hyco Reservoir during 2012 (Appendices 2 and 3). The annual mean concentrations of
099 nutrients reflected the low to moderate trophic status of Hyco Reservoir.
age
owe • As expected, the mean chlorophyll a concentration (a measure of phytoplankton biomass) at
Oq Station 3B was statistically greater than concentrations at all other stations during 2012
w (Appendix 2). However, the concentration range of chlorophyll a at this station was still
owe
oneconsidered low to moderate. All measurements in Hyco Reservoir were below the North Carolina
000 Water Quality Standard of 40 µg/L for chlorophyll a (I SA NCAC 0213.0211, May 2007).
No
00 Ions, Hardness, and Specific Conductance
0 • The annual means of most of the major ion concentrations specific conductance, total dissolved
00 solids and hardness were statistically greater throughout the reservoir than those concentrations
00 observed at Station 3B (upstream) (Appendices 2 and 3). Over the past several years, there has
00 been an increasing trend in many conservative constituents that was likely associated with the FGD
00 system operations at the Roxboro Plant (Appendices 4-7). The annual mean manganese
concentrations were statistically similar among stations when comparing surface waters to bottom
waters. Also, the surface concentrations were generally low with all measured values below the
00 North Carolina 15 NCAC213 standard for water supply. However, concentrations in deepest anoxic
M, bottom waters were occasionally elevated during the summer months where the reduced form of
manganese remains in solution. In cooler months, little or no anoxic waters are found in the
°— reservoir and manganese is oxidized, precipitates, and then settles to the bottom.
ti
ti Alkalinity and pH
~ Hyco Reservoir continued to be moderately buffered with median values and ranges slightly above
t
t neutral (basic) pH throughout the Hyco reservoir during 2012 (Appendices 1 and 2). The surface
pH medians and ranges of pH values were fairly uniform and overlapping throughout the reservoir.
1 Surface water pH values ranged from 7.5 to 3.8 Standard Units among stations during 2012. The
t pH of deeper waters occasionally displayed slightly lower values compared to surface waters
reflecting different biological and limnological processes.
t�
Duke Energy Progress 9 Water and Natural Resources

Roxboro Steam Electric Plant 2012 Environmental Monitoring Report
• Total alkalinity concentrations were statistically greater at Station 3B compared to concentrations
at all other stations which were similar. Individual values ranged from 25 to 36 mg/L in surface
i waters (Appendices 2 and 3).
Trace Elements
Arsenic
• The annual mean arsenic concentration was statistically greatest at Station 4B compared to
concentrations at all other stations: the mean concentration was least at Station 3B during 2012
(Appendices 2 and 3). However, all individual values in surface waters at all stations were
relatively low and were below the North Carolina surface water quality criteria (50 µg/L aquatic
life and 10 µg/L human health). The long term trends of arsenic concentrations at all stations
exhibited what appeared to be seasonal fluctuations in concentrations (Appendices 4-7).
• The annual mean arsenic concentration in the sediments at Transect 4 was significantly greater
compared to concentrations in sediments at Transect 3 from Hyco Reservoir during 2012, as
expected (Appendix 8). This pattern of arsenic in sediments has been observed historically in the
reservoir (PEC 2011 and PEC 2012). In bluegill from Transect 4, arsenic concentrations in liver
were significantly greater than concentrations in bluegill liver from Transect 3 during 2012.
However, these liver values were not considered overly elevated and are of no biological concern.
• All arsenic measurements from fish muscle tissues were below Laboratory Reporting Limits (LRL)
during 2012.
Cadmium
• All annual mean cadmium concentrations in sediments and fish muscle tissues were below the
LRLs during 2012 (Appendix 8). Only cadmium concentrations in fish livers were greater than the
LRLs during 2012. Also, bluegill liver showed the only statistical difference when comparing
concentrations at Transect 4, which were greater, to those concentrations at Transect 3.
Cooper
• The annual mean copper concentrations in Hyco Reservoir surface waters were similar among all
stations during 2012 (Appendices 2 and 3). Further, all copper concentrations measured in 2012
were below the North Carolina action level of 7µg/L. Long-term trends have shown no pattern of
accumulation despite beginning FGD operations in 2008 (Appendices 4-7).
1
1
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1
1
1
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Duke Energy Progress 10 Water and Natural Raanurraa

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One Roxboro Steam Electric F 20 — -nvironmental Monitoring Report
04V
040 • As expected, the annual mean copper concentration in the sediments near the power plant
mdischarge outfall (Transect 4) was statistically greater than the copper concentration at Transect 3
Wq* (South Hyco Creek arm) during 2012 (Appendix 8).
0"
■A • The annual mean copper concentrations of fish liver tissues were statistically similar between
040 Transects 3 and 4 and were considered to be of no biological significance. Most mean copper
000 concentrations in fish muscle tissues were low or they were below the LRL.
00
040 Mercury
00too • The annual mean mercury concentration in surface waters measured at Stations 4B was statistically
040 greater than those concentrations at the other stations during 2012 (Appendices 2 and 3).
go% However, all individual mercury concentrations measured throughout the reservoir ranged from the
Oft LRL (< 0.5 ng/L) to 5.0 ng/L, which were all below the state water quality criterion of 12 ng/L.
Oft
The mean mercury concentrations in sediments were less than the LRLs during 2012 (Appendix 8).
Oft
• The annual mean mercury concentrations in liver tissue of all fish collected at Transect 3 were
0" similar to the concentrations measured in fish at Transect 4 near the power plant discharge during
2012. All annual mean concentrations in fish muscle tissues were below the LRLs, which when
Oft converted to fresh weight concentrations, were all well below the North Carolina Health Director's
w
00% screening value of 0.4 µg/g fresh weight and the EPA's water quality criterion for methylmercury
00% in fish tissues of 0.3 µg/g fresh weight.
Oft
A Selenium
• The annual mean selenium concentration in surface waters of Hyco Reservoir at Stations 4B was
statistically greater than the mean concentrations at the other reservoir stations during 2012
A (Appendices 2 and 3). Since FGD operations began in 2008, selenium concentrations in surface
water have trended somewhat higher and fluctuated more than previously observed in recent years
w (Appendices 4-7). All selenium concentrations measured during 2012 were below the North
Carolina water quality criterion for freshwater of 5 µg/L.
w • The mean selenium concentrations in sediments were statistically greater at Transect 4 compared to
16111 concentrations at Transect 3 during 2012 (Appendix 8). Similarly, all mean selenium
concentrations in fish tissues were statistically greater at Transect 4 compared to the mean
Duke Energy Progress tt Water and Natural Resources

Roxboro Steam Electric runt 2012 Environmental Monitoring Report
concentrations at Transect 3. During 2012 selenium concentrations in bluegill, catfish (white
catfish), and largemouth bass muscle tissues trended somewhat higher at Transect 4 while
r concentrations remained relatively flat at Transect 3 (Appendix 9). This more recent increase in
muscle tissue selenium concentration was likely due to FGD operations at the Roxboro Plant. All
values in edible flesh during 2012, as well as the long-term observation period, were well below
the North Carolina human health consumption advisory level (50 µg/g dry weight, North Carolina
Department of Health and Human Services, 2008).
Thallium
• All thallium measurerpents were below the laboratory reporting limit of 0.1 µg/L during 2012
(Appendix 2 and 3).
Fisheries
Fish Species Composition
• Twenty-two different fish species belonging to eight families were collected from Hyco Reservoir
with electrofishing during 2012 (Appendices 10 and I1). The sunfish family (Centrarchidae) was
predominant in total number (6) of fish species followed by the sucker family (Catostomidae) in
which 5 species were collected. Hyco Reservoir exhibited a typical fish assemblage in terms of the
presence of predator and prey species for piedmont impoundments in the Southeast. Largemouth
bass was the primary apex predator while black crappie, channel catfish, and white bass also
occupied the predatory niche in significant numbers. A reasonably wide variety of prey species
existed in Hyco Reservoir to serve food for these predator species.
• Except for blue tilapia, redbelly tilapia, and threadfin shad, the fish assembled in Hyco Reservoir
are considered widely distributed in the Southeastern United States and their presence is not
believed to be a result of the operation of the Roxboro Plant. Threadfin shad, blue tilapia, and
redbelly tilapia are intolerant of cold water temperatures and it is believed that the thermal
discharge allows these species to overwinter within the reservoir. The remaining fish species were
indigenous or typically found in piedmont reservoirs of North Carolina.
• The greatest diversity of fish was found upstream at Transect 3 (19 species) followed by the
number at Transect 1 (18 species) during 2012 (Appendix 11). Fewer fish species were observed
Duke Energy Progress 12 Water and Natural Resources
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Roxboro Steam Electric f 20._ _nvironmental Monitoring Report
downstream in the power plant discharge and near the dam at Transects 4 (9 species) and 6 (11
species).
Fish Abundance, Distribution, and Size Structure
• Sunfish were the most the abundant fish group in the reservoir followed by herrings (Clupeidae)
and tilapia (Cichlidae) (Appendices 10 and 11). The sunfish family represented 66% of the total
annual electrofishing catch with bluegill as the most abundant single species caught representing
44% of the total catch. Gizzard shad was the second most abundant species representing 16% of
all fish collected and 25% of the total species biomass collected during 2012. This species was
comprised of mostly larger individuals greater than 200 millimeters which explains their sizable
biomass percentage of the total catch (Appendix 14). Largemouth bass ranked third overall
accounting for 13% of the total number of fish caught and they were the greatest percentage of the
total biomass (32%) in electrofishing catches during 2012. Total fish number and biomass
reservoir -wide during 2012 were consistent with values observed in recent years (PEC 2011 and
PEC 2012).
• Bluegill, the most abundant species overall, were collected in greatest numbers at Transect 1
(Cobbs Creek) during 2012 (Appendix I1). The mean catches by transect arranged in decreasing
order were l>3>4>6>2.
• Bluegill reproduced well at most transects in Hyco Reservoir during 2012 (Appendix 12). The
size class distributions were similar among all transects except at Transect 2 where few fish less
than 100 mm were collected, as has been observed previously (PEC 2012). The habitat at Transect
2 is comprised mostly of bare shoreline with very little structure to provide cover for fish which
resulted in the low catch of small bluegill at this location. As a result, the mean length of bluegill
was greatest at this transect compared to the lengths at other transects. The mean bluegill Relative
Weight (Wr), an indirect measure of condition, at Transect 4 near the heated water discharge was
81 during 2012 (Appendix 15). At Transect 3, which is considered to be relatively un-impacted by
power plant operations, the bluegill Wr was 78 (Appendix 16). The suboptimal Wr values (100 is
optimal) may be reflective of the moderate nutrient status of Hyco Reservoir and competition for
food for this dominant species. Most fish rarely achieve optimal condition in natural settings.
r • Largemouth bass were well distributed throughout the reservoir during 2012 (Appendix 11). They
Duke EnergyProgress ro9 ress
13 Water and Natural Resources

Roxboro Steam Electric Plant 2012 Environmental Monitorinq Report
were also well represented in most size classes in the reservoir (Appendix 13). Largemouth bass
reproduction, represented by individuals less than 150 mm, was considered to be reasonably good
at most locations except Transect 2. Again the lack of cover for small fish may have led to the
absence of this smaller size class for largemouth bass at this location. Transect 4 near the heated
water discharge was on average the smallest mean size (211 mm) in the reservoir. Relative weight
for largemouth bass was 87 at Transect 3 and was 82 at Transect 4 during 2012 (Appendices 15
and 16).
• Gizzard shad were primarily collected in the greatest numbers in the upstream locations including
Transects 1, 2, and 3 in Hyco Reservoir during 2012 (Appendix 11). Habitat in these locations is
generally cooler, shallower, and more productive than the warmer, more open area downstream
near the power plant.
• Gizzard shad caught in Hyco Reservoir were mostly greater than 200 mm during 2012
(Appendix 14), as expected and observed previously (PEC 2012). Young -of -year gizzard shad are
not efficiently collected by electrofisher sampling due to the inherent geartype bias against smaller
fish and the natural schooling behavior of fish in their first year of life (Carlander 1970). The Wr
values of gizzard shad were 88 at Transect 3 and 84 at Transect 4 during 2012 (Appendices 15
and 16).
• Redear sunfish, channel catfish, and blue tilapia were reasonably well distributed throughout Hyco
Reservoir during 2012 (Appendix 11). Other species that were more abundant at certain locations
included threadfm shad, notchlip redhorse, black crappie, and redbelly tilapia.
Balanced. Indigenous Population
• A "Balanced, Indigenous Population (BIP)," particularly as it relates to thermal impacts for power
plant operations, means a diverse aquatic community that is self-sustaining with an adequate food
supply and is not dominated by pollution tolerant species. However, man-made impoundments for
the purpose of providing cooling water for power plants are by definition artificial systems and
thus the term indigenous may be inappropriate when applied to them. Indigenous refers to
presence of species through natural processes without any intervention by man, which is not the
case for impoundment aquatic populations. Anderson and Newmann (1996), in their review of
indices of balance and condition, stated "In contrast with natural systems, many fisheries are
Duke Energy Progress 14 Warm 2~1 u.+.._j o ._
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Roxboro Steam Electric Pian[ 201[ environmental Monitorinq Report
�A
managed within artificial systems such as impoundments. These artificial systems contain
moo introduced species because no fish communities are native to these newly created (from an
oft evolutionary perspective) waters." DEP agrees with this statement. The riverine communities that
011101
00% once existed in the system prior to impoundment generally decline and are displaced by lentic
no% communities of species common in the region. Many species in impoundments show up through
oft introductions by resource agency stocking activity, by anglers, and by other means. However,
NK% while the indigenous aspect of impoundments is questionable, the communities can be assessed in
00% terms of being self-sustaining, in balance with food supply, and being composed of diverse species
Oft
001111111 common in the region that are not there because they can tolerate pollution, thermal or otherwise.
• As indicated above, Hyco Reservoir represents a balanced, self-sustaining community. To
oft demonstrate balance, an aquatic population/community must contain both predator and prey
Oft species in numbers reflecting the trophic status of the system and that are reproducing and
s^
1�0 recruiting adequately. Several regionally common predator species including adult largemouth
bass, black crappie, white bass, channel catfish continue to exist in Hyco Reservoir. The apex
00 predator largemouth bass, an integral part of the aquatic community, exhibited both adequate
00 reproduction and recruitment for a self-sustaining population as indicated by the presence of
00 sufficient numbers of young -of -year (generally < 150 mm) and year class 1+ fish (generally > 150
511% nun to 250 mm) throughout the reservoir during 2012 (Appendix 13). Many forage species also
00 exist in the reservoir as well, including the primary prey species bluegill. This species also
Aexhibited the necessary presence of young -of -year (generally < 80 mm) and year class I+ fish
(generally > 80 mm to 125 mm).
Oft
a% • Also, fish populations in balance are indicated by accepted Proportional Stock Density (PSD) index
A values. PSD values for balanced populations of largemouth bass range from 40 to 70 and for
bluegill from 20 to 60 (Gabelhouse 1984). In Hyco Reservoir, largemouth bass and bluegill
exhibited overall PSD values of 46 and 23, respectively, which indicates these species fall within
the ranges for balanced populations (Appendix 17).
0% • Use of a regionally suitable reference water body with similar characteristics (except for an
1% absence of a thermal input) for comparison purposes is another way to determine the status of BIP.
Mayo Reservoir is a reasonable choice for a reference system because of its nearby location, size,
and associated power plant with both ash pond and FGD system discharges but lack of a thermal
M discharge. Based on nutrient loading, Hyco Reservoir (oligotrophic to mesotrophic) is somewhat
rDuke Energy Progress I5 Water and Natural Resources

Roxboro Steam Electric .._..t 2( nvironmental Monitoring Report
more productive than Mayo Reservoir (oligatrophic) owing to its greater watershed and stream
flow. In 2012, Hyco Reservoir contained 22 fish species compared to 14 fish species in Mayo
Reservoir (DEP 2013). Also, Hyco Reservoir produced about twice as many fish and over twice as
• much biomass during 2012 due to the trophic difference.
• Both impoundments- contain several species introduced accidentally, through agency stocking
programs, or by anglers. However, the compositions and diversity of both fish communities
remain basically similar with primarily regionally common fish species. Other minor apparent
differences in diversity between the two communities exist such as the presence of chained pickerel
in Mayo Reservoir but not in Hyco Reservoir electrofishing catches. This aspect is considered to
be more related to a Vnuch greater abundance of aquatic vegetation, a preferred habitat of chain
pickerel, in Mayo Reservoir. Thus it can be said that the fish community of Hyco Reservoir is not
a result of thermal influence. One exception to point out is that two truly exotic species in Hyco
Reservoir including blue tilapia and redbelly tilapia that were accidentally released are able to
survive cold winters strictly because of the thermal discharge.
Fish Community Health
• No fish kills were observed or reported from Hyco Reservoir during 2012.
Biofouling Monitoring
No zebra mussels (Dreissena polymorpha) or quagga mussels (D. bugensis) were found in
Hyco Reservoir during 2012. These mussels are potentially serious biofouling organisms to power
plant operations. Neither species has been collected from Hyco Reservoir. Asiatic clams (Corbicula
Jluminea) are known to exist in Hyco Reservoir as in many other Southeastern reservoirs; however, no
significant power plant operational issues have been caused by their presence.
Summary and Conclusions
During 2012, Hyco Reservoir thermal stratification patterns and water temperature extremes
continued to be dependent on the local meteorological conditions, the proximity to the discharge canal
outfall area, the influence of the circulating water of the auxiliary intake system, and the inverted
siphon (part of the old discharge canal to Cobbs Creek) on the South Hyco Creek arm of the reservoir.
Duke Energy Progress 18 Water and Natural Resources

sA
a" Roxboro Steam Electric P 201_ -avironmental Monitoring Report
The annual mean reservoir water temperature during 2012 continued to be within the range typically
observed in Hyco Reservoir.
A number of water chemistry parameters had lower concentrations at the historical background
station compared to the remainder of Hyco Reservoir during 2012 likely due to FGD operations.
009 Certain aqueous constituents including total dissolved solids, ions, and the trace element selenium
009 continued to trend up within the reservoir, particularly near the discharge. In fish tissues, selenium
029 concentrations discharge trended up as well near the discharge, again likely caused by FGD operations
089 through time as food chain bioaccumulation has gradually increased. However, the edible flesh
04 selenium concentrations remained well below the North Carolina Department of Health and Human
04 Services consumption advisory level of 50 p ry µg/g (dry weight).
04
004 Fish species composition, abundance, and distribution in Hyco Reservoir during 2012 were
019 similar to results from previous years. Bluegill continued to dominate the fishery during 2012 and
W" gizzard shad and largemouth bass were also very abundant within the reservoir. The fish community
am tended to be slightly less diverse in the open -water habitat of the middle and downstream portion of the
w reservoir compared to the upper, riverine-like areas of Hyco Reservoir.
w Hyco Reservoir, an artificial man-made water body, contained a fish community that was
04
04 balanced, and self-sustaining, which indicates a balanced aquatic community characteristic of
09 oligotrophic to mesotrophic piedmont impoundments located in Southeastern United States.
•A
04
04
04
04
.w
.n
04
A
w
.w
w
w
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w
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w
A
A 4 Duke Energy Progress 17 Water and Natural Resources

Roxboro Steam Electric Plant 2012 Environmental Monitoring Report
References
APHA. 1995. Standard methods for the examination of water and wastewater. 19th Ed. American
Public Health Association, Washington, DC.
Anderson, R.O. and R. M. Neumann. 1996. Length, Weight, and Associated Structural Indices, In
Fisheries Techniques, Second Edition. American Fisheries Society, Bethesda, Maryland.
Carlander, K. D. 1970. Handbook of freshwater fishery biology. Volume 1. Second Edition. The Iowa
Univ. Press, Ames, Iowa.
Claudi, R., and G. L. Mackie. 1993. Practical manual for zebra mussel monitoring and control. Lewis
Publishers, Boca Raton, FL.
CP&L. 1991. Roxboro Steam Electric Plant 1990 environmental monitoring report. Carolina Power &
Light Company, New Hill, NC.
2001. Roxboro Steam Electric Plant 2000 environmental monitoring report. Carolina Power &
Light Company, New Hill, NC.
DEP. 2013. Roxboro Steam Electric Plant 2009 environmental monitoring report. Duke Energy
Progress, New Hill, NC.
Gabelhouse. D. W., Jr. 1984. A length -categorization system to assess fish stocks. North American
Journal of Fisheries Management 11:50-56.
PEC. Analytical Chemistry Laboratory. Nuclear Generation Group Standard Procedure. Energy
Dispersive X-ray Analysis of Materials (CUE-NGGC-0044) Revision 0. Volume 99, Book/Part
99.
2008. Roxboro Steam Electric Plant 2007 environmental monitoring report. Progress Energy
Carolinas, Raleigh, NC.
1
2011. Roxboro Steam Electric Plant 2010 environmental monitoring report. Progress Energy 1
Carolinas, Raleigh, NC.
1
2012. Roxboro Steam Electric Plant 2011 environmental monitoring report. Progress Energy 1
Carolinas, Raleigh, NC. `
1
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Ouke Energy Progress is

Roxboro Steam Electric F .-.., 20 - _nvironmental Monitoring Report
Appendix 1. Depth profiles of the water temperature (°C), dissolved oxygen (mg/L), pH, and
specific conductance (µS/cm) at Hyco Reservoir during 2012.
February 23,2012
Temperature
Dissolved oxygen
pH
Specific conductance
Depth
28
3B
4B
68
2B
38
4B
6B
2B
3B
4B
6B
2B
3B
4B
6B
0.2
12.9
10.6
22.2
16.3
10.7
12.4
9.3
10.0
7.7
8.1
7.6
7.7
302
149
339
322
1.0
12.8
10.5
22.2
16.2
10.7
12.5
9.3
9.9
7.7
8.0
7.6
7.7
302
149
339
322
2.0
11.7
10.1
21.4
16.1
10.8
12.5
9.3
9.9
7.7
8.0
7.6
7.7
299
148
338
322
3.0
11.5
9.4
17.5
15.8
10.8
12.6
9.5
9.8
7.6
8.0
7.6
7.6
297
149
324
322
4.0
11.4
9.1
16.4
15.6
10.8
11.6
9.2
9.9
7.6
7.8
7.5
7.6
297
187
319
321
5.0
10.6
8.8
14.8
10.6
11.3
9.4
7.6
7.8
7.5
283
182
314
6.0
10.5
8.7
13.7
10.0
10.5
9.3
7.5
7.7
7.5
281
179
312
7.0
10.5
13.1
9.8
9.2
7.5
7.4
281
310
8.0
12.9
9.2
7.4
308
9.0
12.3
9.2
7.4
298
10.0
11.6
8.7
292
April 24, 2012
Temperature
Dissolved oxygen
pH
Specific conductance
Depth
26
3B
48
6B
2B
3B
4B
6B
2B
3B
4B
6B
2B
3B
4B
6B
0.2
19.4
18.0
27.2
20.1
8.2
8.4
7.7
8.2
7.6
7.7
T6
7.6
346
188
406
375
1.0
19.4
18.0
27.3
20.1
8.2
8.4
7.7
8.1
7.6
7.6
7.6
7.6
345
189
407
375
2.0
19.4
17.9
26.6
20.0
8.2
8.4
7.7
8.1
7.6
7.6
7.6
7.6
345
192
405
375
3.0
19.4
17.8
23.4
19.6
8.2
8.3
7.4
8.0
7.6
7.6
7.6
7.6
345
195
369
375
4.0
19.4
17.8
21.9
8.1
8.3
7.0
7.6
7.6
7.4
345
1%
358
5.0
19.3
17.7
21.1
8.1
8.2
6.3
7.5
7.5
7.4
345
197
348
6.0
19.3
17.6
20.4
8.1
8.1
5.6
7.5
7.5
7.2
345
197
339
7.0
19.3.
19.9
8.0
5.1
7.5
7.2
345
337
8.0
19.0
3.8
7.1
341
9.0
18.0
1.6
7.0
340
10.0
16.8
0.3
7.0
347
11.0
16.3
0.3
7.0
351
June 2.5. 2012
Temperature
Dissolved oxygen
pH
Specific conductance
Depth
2B
3B
4B
6B
2B
3B
4B
6B
2B
3B
4B
6B
2B
3B
4B
6B
0.2
30.5
30.9
34.4
31.7
8.5
8.4
7.1
7.6
8.3
8.2
7.9
7.9
419
274
427
424
1.0
30.4
30.3
34.3
31.5
8.6
8.6
7.1
7.6
8.3
8.2
7.9
7.9
419
281
428
424
2.0
30.1
29.4
33.4
30.1
8.7
8.0
7.0
7.6
8.3
8.1
7.8
7.9
418
281
427
423
3.0
30.0
28.2
32.6
30.7
8.7
5.7
6.7
8.0
8.3
7.7
7.7
7.9
418
285
423
423
4.0
29.5
25.3
31.6
7.6
0.3
6.5
8.1
7.2
7.6
412
267
421
5.0
28.5
21.5
29.3
4.1
0.2
5.5
7.5
7.1
7.5
401
289
416
6.0
27.4
20.2
28.6
1.0
0.2
5.6
7.2
7.1
7.4
389
294
416
7.0
27.0
27.7
0.2
4.5
7.0
7.3
390
414
8.0
26.9
2.7
7.1
409
9.0
23.2
0.2
7.2
406
10.0
20.8
0.2
7.3
409
11.0
20.1
0.2
7.5
410
Duke Energy Progress 19 Water and Natural Resources

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pocloN uuoliuow leluawuoJ1nu3 ZLOZ lUeld auloa13 weals oiogxoa

Roxboro Steam Electric Pla
2012 ironmental Monitoring
Report
aA
Appendix 2. Means, ranges and spatial
trends
of selected
limnological variables from Hyco
Reservoir during 2012't.
Ow
t"
Station 2B
Station 3B
Station 4B
Station 6B
OW
Variable Mean Ranee
Mean
Mean
Mean Range
Mean
Range
040
Temperature ('C) 21.6bc 12.9-32.3
20.Oc
10.6-31.5
28.0' 21.4-36.1
23.46
16.3-33.6
Alm
Dissolved oxygen (mg/L) 8.9' 8.1-10.7
9.5'
8.1-12.4
7.8b 6.4-9.3
8.3b
7.2-10.0 .
tt�
Secchi disk transparency (m) 2.Ob 1.0-3.0
1.2c
0.6-1.8
2.7' 2.3-3.0
3.3'
3.1-3.4
Specific conductance(µS/em) 418' 302-513
2961,
149462
447' 339-533
432'
322-517
pH (SU) 7.8 7.6-8.3
7.8
7.5-8.2
7.6 7.5-7.9
7.7
7.5-7.9
A*V
Turbidity (NTU) 3.9'b 1.5-9.0
5.2'
3.5-8.7
2.1bc 1.6-3.2
1.70
1.4-2.0
aA
Chlorophyll o (µg/L) 3.2b 0.9-5.7
9.9'
4.8-10
1.4b 0.0-2.1
0.71,
0.0-1.5
04
Nutrients (mg/L)
04
Ammonia-N 0.02 <0.01-0.03
0.01
<0.01-0.02
0.02 <0.01-0.04
0.01
<0.01-0.02
Nitrate +Nitrite N g038b <0.02-0.06
0.011,
<0.02-0.04
0.05' <0.02-0.11
0.04'
<0.02-0.10
009
Total nitrogen 0.40 <0.10-0.69
0.42
<0.10-0.80
0.49 <0.10-0.99
0.37
<0.10-0.63
tw
Total phosphorus 0.014b 0.010-0.020
0.023'
0.015-0.032
0.010bc 0.008-0.012
0.0080
0.007-0.010
l*
Total organic carbon (mg/L) 5.7 4.9-8.6
6.1
5.3-9.7
0.02 <0.01-0.04
0.01
<0.01-0.02
tW
Ions (mg/L)
019
Calcium 45' 33-60
30b
16-53
48' 41-63
44'
33-59
Chloride 88' 64-118
55b
24-94
96' 75-114
92'
68-116
Magnesium 13' 10-17
9.36
5.9-14.7
14' 12-17
134
11-17
009
Manganese (surface) 41 25-57
85
52-156
64 42-88
54
37-83
off
Manganese (bottom) 62 49-94
567
96-1180
2,146 103-7550
N/A
N/A
Sodium 8.7' 7.1-10.2
7.7b
5.9-9.7
8.9' 7.9-10.2
8.7'
7.6-10.0
009
Sulfate 42' 32-59
25'
15-39
42' 37-57
47'
34-79
00
Total alkalinity (mg equiv. 27' 25-30
31'
26-36
28b 25-34
26b
25-27
OW
CaCO3/L)
me
Hardness (mg equiv. CaCO3/L) 165' 124-218
113b
65-194
177' 150.228
1663
129-217
Total dissolved solids (mg/L) 281' 223-352
200'
118-320
309' 249-380
282'
244-320
00
Trace elements (µg/L)
Ole
Arsenic 1.2b 0.9-1.6
0.8c
<0.5-1.2
1.4' 1.0-1.8
1.3'
0.9-1.7
00
Copper 1.3 1.1-1.7
1.1
0.7-1.4
1.1 0.8-1.4
1.2
1.0-1.5
00
Mercurv,(ne/L) 1.11, < 0.5-1.5
0.6b
< 0.5-1.0
2.6' 0.6-5.0
0.81
< 0.5-1.5
Selenium 1.76 1.5-1.8
0.8c
0.5-1.5
2.1' 1.7-2.4
1.9'
1.8-2.0
1
Thallium <0.1 N/A
<0.1
N/A
<0.1 N/A
<0.1
N/A
t
'Unless otherwise noted, all measurements were taken from the surface. Fishers protected Least Significant Difference (LSD)
test was
applied only if the overall F test for the treatment was significant. Means followed by different superscripts were significantly
different from each other (P = 0.05). The rows where significant
differences occurred are shaded.
Data were
rounded to
i
conform to significant digit requirements. Rounding
may obscure mean differences. The. variable pH was reported
as a median
y
value and was not subjected to statistical analysis.
Sample
size equaled 6
unless otherwise noted.
Statistical
testing was
conducted on surface water means only.
`Less than values (<) indicate the Lower Reporting Limit (LRL)
for
the variable. 'fhe
LRL is a statistically determined
limit
beyond
t�
which chemical concentrations cannot be reliably quantified.
Statistical analyses were utilized only when
mean concentrations
were above the highest analytical LRL and where
LRL values
occurred, means were calculated by utilizing
one
half of the
absolute value of each LRL.
tiMercury was measured in nanograms per liter (ng/L).
Duke Energy Progress
21
Water and Natural Resources

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Roxboro Steam Electric Pla 2012 1ronmental Monitoring Report
Appendix 3 (continued)
Month TDS Turbidity
Feb
249
1.6
Apr
346
3.2
Jun
268
1.6
Aug
314
2.3
Oct
298
2.0
Dec
380
2.1
NH,,N NO;+NO=-N
0.02
< 0.02
0.02
0.11
<0.01
< 0.02
0.04
< 0.02
<0.01
0.08
<0.01
0.07
Station 4B
TN
<0.10
0.20
0.99
0.74
0.32
0.63
TP
TN:TP
TOC
Ca='
CI"
0.011
8.1
42
77
0.009
22
4.5
41
75
0.009
110
4.6
41
114
0.012
62
4.9
50
95
0.008
40
4.8
50
103
0.010
63
4.9
63
I10
Month
Mgr'
Na
SO,r"
Alkalinity
Hardness
As
Cu
Hg
TI
Se
Feb
12
7.9
37
26
156
1.1
1.3
0.0034
<0.10
2.1
Apr
12
8.3
37
34
150
1.0
1.4
0.0019
<0.10
2.0
Jun
13
8.1
40
27
155
1.2
1.3
0.0006
<0.10
1.7
Aug
14
9.2
38
26
183
1.8
1.0
0.0050
<0.10
1.9
Oct
15
9.5
57
25
187
1.8
0.8
0.0010
<0.10
2.3
Dec
17
10
46
27
228
1.6
1.0
0.0034
< 0.10
2.4
Station 6B
Month
TDS
Turbidity
NHS-N
NO;+NO=-N
TN
TP
TN:TP
TOC
Ca='
CI'
Feb
244
1.4
0.02
<0.02
<0.10
0.007
4.8
39
73
Apr
250
1.6
0.02
0.10
0.10
0.008
13
3.9
33
68
Jun
270
1.6
0.01
<0.02
0.48
0.008
60
8.3
41
116
Aug
311
1.8
<0.01
<0.02
0.53
0.010
53
5.4
47
92
Oct
299
2.0
<0.01
0.07
0.45
0.007
64
5.2
47
102
Dec
320
1.6
<0.01
0.07
0.63
0.007
90
4.7
59
101
Month
Mg"
Na
SO ='
Alkalinity
Hardness
As
Cu
Hg
TI
Se
Feb
12
7.6
36
26
148
1.0
1.5
<0.0005
<0.10
1.9
Apr
11
8.1
34
27
129
0.9
1.5
0.0010
<0.10
1.9
Jun
12
8.1
40
27
153
1.1
1.1
<0.0005
<0.10
1.8
Aug
14
8.9
49
26
173
1.7
1.0
0.0014
<0.10
1.9
Oct
15
9.6
44
25
177
1.6
1.0
0.0007
<0A0
2.0
Dec
17
10.0
79
27
217
1.4
1.1
0.0015
<0.10
2.0
+Units are in mg/L except for most trace elements (µg/L) turbidity (NTU), total alkalinity (mg/L as
CaCO3), and hardness (calculated as mg equivalents CaCO3/L). Less than values (<) indicate
the Lower Reporting Limit (LRL) for the variable. The LRL is a statistically determined limit
beyond which chemical concentrations cannot be reliably reported.
SAIL variables are surface measurements.
Duke Energy Progress 23 Water and Natural Resources

Roxboro Steam Electric Flan[ 2012 Environmental Monitoring Report
_125 Chbride
� J
E100----- - -------------------- ----- - -- -- - -----..._
c75 ..-..... -- - - — ---- - -------
��
a�
U
0
U
0
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
Hardness
03 2004 2005 2006 2007 MOB 2009 2010 2011 M12
Year
_25 Total Copper
_J
3
015......------_...._--_------------- -----------------------
�10............. ... .------------ .--------- ....-..-------- .......
N
U
5----._... - ----------
U
0
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
500 Total Dissolved Soilids
J
E400-....__.._.-_-....._-...
=300
f200 -- ---....--- -
m
U
0
U
0
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
Total Areanir
2003 2001 2005 2e06 2007 2008 2009 2010 2011 MI;
Year
Total Selenium
2003 2004 20M 2006 2007 2009 2009 2010 201t 41i
Year
Appendix 4. Long-term trends of selected parameters at Station 2B from Hyco Resenviir from
2003 through 2012.
Duke Energy Progress 24
Water and Natural Resources

Roxboro Steam Electric PIS 2011 _.. jironmental Monitoring Report
1ao Chloride 1
E75 __._-._... _...... -_......._-I_
c
0
m 50
d
O25
C
O
CU
2003 2004 2M5 2006 2007 2008 2009 2010 2011 M12
Year
Hardness
75 YAJ
C50
O 2t5 - -...
U
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
25 Total Copper
m
U
U
0
2003 2004 2005 2006 2007 2006 2009 2010 2011 M12
Year
6W Total Dissolved Soilids
O500 ___ ---............_
E
c
0
W300
c200
V
0100 .._._
U
e
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
5 Total Arsenic
J
03-----------------------__....-..-..
`2
mom
U
C1
U
0
2003 2004 2005 2008 2007 200E 2009 2010 2011 2012
Year
5 Total Selenium
_J
03--- _..---- -_
m
U
U
0
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
Appendix 5. Long-term trends of selected parameters at Station 3B from Hyco Reservoir from
2003 through 2012.
' Duke Energy Progress 25 Water and Natural Resources

Roxboro Steam Electric Fiant 2012 Environmental Monitoring Report
Chloride Total Dissolved Soilids
2003 2000 M M 2007 2009 2009 2010 2011 20t
Year
N
250 Hardness
_J
E
=150 ---------------------------------- _. _....--- _---- _ __
=1W . __........
c
W
ca
C5D.. .. ... _... ... ..
O
U
9
2009 2004 2005 2006 2007 2008 2009 2010 Nil 201
Year
Tntal Areanir
2003 2001 2005 M 2007 20 2009 2010 Nil ni
Year
50 Total Copper s Total Selenium
J
_J
?40 2
2DLL,=.�
C
WA I
O N t
U U
U O
9 U0 1
2003 2004 2005 2006 2007 M08 2009 2010 X11 2012 M 209r M 2009 2007 2009 2009 2010 N11 2012 1
Year Year
1
1
t
1
Appendix 6. Long-term trends of selected parameters at Station 411 from 11 co Reservoir from 1
2003 through 2012.
1
Duke Energy Progress 26 Water and Natural Rpmnurr.Pc 1

Roxboro Steam Electric P 201_ _.lvironmental Monitoring Report
s
a
a
a
00
4
150 Chloride
J_
G125 -- ... ..... -
E
:100 _. _ _..... -------- .
0
75 --- - .... - -- ------
�50
U
0 25 .... -- - - -- ---
2003 2OD4 2005 20D6 2007 2008 2009 2010 2011 2012
Year
Hardness
_250
J
D
2003 20% 2005 2006 2107 2008 2009 2010 2011 2012
Year
_50 Total Copper
J
O_40 ....-.....-... _ ___
930
-10
Y
0
U
0 . . . I I I F L1.1 1 11 11
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
4Da Total Dissohled Soilids
J_
O
E3DO .. _ -.... -
c
0
d
U
0
20M 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
5 Total Arsenic
J
w - ...
03 -- _.
u
U
0
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
Tntol Solonium
003 2004 2005 M 2007 2008 2009 M10 2011 412
Year
Appendix 7. Long-term trends of selected parameters at Station GB from Hyco Reservoir from
2003 through 2012.
Duke Energy Progress 27 Water and Natural Resources

r
Roxboro Steam Electric Plant 2012 Environmental Monitorinq Report
Appendix 8. Means and standard errors of trace element concentrations (µgtg dry weight)' in
sediments and fish by transect from Hyco Reservoir during, 2012.1
Matrix
n
Transect
Element
Arsenic
Cadmium
Copper
I Mercury
Selenium
Sediments
3
3
4.3' f 0.5
< 0.9
78b f 4.4
< 2.1
2.6' t 0.2
3
4
24fl't0.4
<1.1
121°f4.8
<2.5
8.28f0.5
Fish liver
Catfish§
11
3
0.1 f 0.01
0.05 f 0.01
6.6 f 0.3
0.5 f 0.16
20b f 2.6
10
4
0.1f0.03
0.1t0.02
8.0±0.8
0.4f0.08
370±3.8
Bluegill
10,
3
0.5b f 0.12
0.4b f 0.07
6.2 f 0.5
0.2 t 0.03
job f 1.3
12
4
2.10±0.4
0.8°t0.1
6.8f0.8
0.3t0.05
20°f2.2
Largemouth bass
10
3
0.8 f 0.09
0.6 f 0.32
13 f 2.2
0.4 f 0.06
13b f 1.3
10
4
0.9f.0.12
1.1f0.6
21t4.9
0.5f0.07
26°f2.1
Fish muscle
Catfish'
11
3
<0.5
<0.7
<2.0
<0.8
5.lbf 1.0
10
4
<0.4
<0.7
2.1 f 0.3
<0.8
142t 1.4
Bluegill
10
3
< 0.5
< 0.6
< 2.0
< 0.7
5.3' t 0.7
12
4
< 0.4
< 0.7
< 2.0
< 0.7
168 t 1.4
Largemouth bass
10
3
< 0.4
< 0.6
2.8 f 1.8
< 0.8
7.8b f 0.4
10 1
4 1
<0.5
<0.6
<2.0
<0.8
18°t0.9
+ To convert to mean wet weight concentrations, multiply the mean dry weight concentration by the
appropriate mean dry -to -fresh weight ratio as follows: sediments-0.30, catfish liver--0.20,
bluegill liver-0.23, and largemouth bass liver--0.22, catfish muscle-0.17, bluegill muscle-
0.19, and largemouth bass muscle-0.20.
'Standard errors and statistical analyses are given when mean concentrations were at or above the
laboratory reporting limit. Laboratory reporting limits varied between samples. Fisher's
protected least significant difference procedure was applied only if the overall F test for
transect was significant. Means for each element followed by different superscripts were
significantly different at the P = 0.05 level and were shaded gray to denote significant results
between transects.
'"Catfish" included white catfish (Ameiurus catus) only.
1
1
nix,. Fnnrnv orn-- 9A ... .._

Roxboro Steam Electric PI 201< �„vironmental Monitoring Report
25
Bluegill
20 -
c 15
o----- - - ------
u
E 10 _
E
v 5 _.- \-
0 —
-r
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
-i--Transect 3 -f-Transect 4
u
Largemouth bass
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
- +--Transect 3-FTransect 4
20 ----------.—. - -
White catfish
-
c
$10
E-- --
3 5
c -- -
m
w 0 ----- --- r - - -r- - --,
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Year
-r-Transect 3 -*-Transect 4
Appendix 9. Long-term trends of selenium concentrations in hlucgill, largemouth bass, and
white catfish muscle tissues at Transect 3 and Transect 4 from Hyco Reservoir
from 2001 through 2012.
Duke Energy Progress 29 Water and Natural Resources

Steam Electric it
2vi4 cnvironmentni
n
Appendix 10. Total number and weight (kilograms) of fish collected with electrofishing from
Hyco Reservoir during 2012.
Scientific name' Common name Total number Total weight
Clupeidae
Herrings
Dorosoma cepedianum
Gizzard shad
423
90.7
Dorosoma petenense
Threadfin shad
190
1.1
Cyprinidae
Minnows
Cyprinella analostana
Satinfin shiner
28
< 0.1
Cyprinus carpio
Common carp
5
13.7
Catostomidae
Suckers
Erimyzon oblongus
Creek chubsucker
3
1.0
Erimyzon sucetta `
Lake chubsucker
7
2.1
Moxostoma collapsum
Notchlip redhorse
40
36.1
Moxostoma pappillosum
V-lip redhorse
1
0.7
Moxostoma erythrurum
Golden redhorse
5
4.1
Ictaluridae
Bullhead catfishes
Ameiurus catus
White catfish
8
23.7
Ameiurus platycephalus
Flat bullhead
9
0.9
ktalurus punctatus
Channel catfish
37
29.9
Percicthyidae
Temperate basses
Moron chrysops
White bass
9
3.1
Centrarchidae
Sunfishes
Lepomis cyanellus
Green sunfish
75
1.1
Lepomis gulosus
Warmouth
5
0.4
Lepomis macrochirus
Bluegill
1,177
24.5
Lepomis microlophus
Redear sunfish
90
13.4
Lepomis hybrid
Hybrid sunfish
4
0.2
Micropterus salmoides
Largemouth bass
354
114.5
Pomoxis nigromaculatus
Black crappie
69
7.6
Percidae
Perches
Perca flavescens
Yellow perch
4
< 0.1
Cichlidae
Cichlids
Tilapia aurea
Blue tilapia
44
9.2
Tilapia zilli
Redbelly tilapia
88
2.1
Total'
Total Species
2,676
359.0
22
'Taxonomic nomenclature follows Robins et al. (1991).
'Totals include only fish identified to species level.
t
1
Duke Energy Progress 30 Water and Natural Resources
III

Roxboro Steam Electric Plar_ 20121 ronmental Monitoring Report
s
s
s
s
as
as
s
s
s
s
s
s
s
a
a
I
■
r
r
00
A
Appendix 11. Mean catch per hour of fish collected with electrofishing by transect from Hyco
Reservoir during 2012.
Common Name
Transect
Resen,oir mean
1
2
3
4
6
Gizzard shad
56
50
89
8
10
42
Threadtin shad
9
0
86
0
0
19
Satintin shiner
6
< 1
6
0
2
3
Common carp
< 1
0
2
0
0
< I
Creek chubsucker
0
0
2
0
0
< 1
Lake chubsucker
1
0
2
0
0
I
Notchlip redhorse
< 1
2
18
0
0
4
V-lip redhorse
0
< 1
0
0
0
< I
Golden redhorse
I
< I
1
0
0
<
White catfish
2
0
1
0
< 1
1
Flat bullhead
1
0
2
0
2
1
Channel catfish
6
6
6
1
< 1
4
White bass
< 1
0
4
0
0
1
Green sunfish
< 1
0
< 1
3
34
8
Warmouth
0
0
0
2
1
< 1
Bluegill
253
14
136
95
90
118
Redear sunfish
9
10
16
4
5
9
Hybrid sunfish
0
0
0
< 1
2
< 1
Largemouth bass
44
25
36
36
36
35
Black crappie
31
0
4
0
0
7
Yellow perch
0
0
2
0
0
< 1
Blue tilapia
3
2
I
15
2
4
Redbelly tilapia
1
0
0
43
0
9
Total mean'
425
109
415
207
182
268
Total number of species
18
10
19
9
11
22
}Totals may vary from column sums due to rounding.
'Total number of species does not include hybrid sunfish.
J
Duke Energy Progress 31 Water and Natural Resources

Roxboro Steam Electric PIL... 2012 ciivironmental Monitoring Report
TransactI (Year-2012)
« 15 n=s0s
C Mean = 81
O
10
O
0 25 50 75 100 125 150 175 200 225 250
length (mm)
20
Transect2 (Year-2012)
15 Meann• t59
m 10
s
0 25 50 75 100 125 150 175 200 225 250
length (mm)
20
Transecll (Year= 20121
« 15 n - 272
C Mean =114
O
to
O
S.
4 o u1�1�1'1�'1W���s1_>•�
0 25 50 75 100 125 150 175 200 225 250
length (mm)
20
Tronsects (Year -2012)
15 10 Moan -
m Moan 97
m
d 5 ■■
0 25 50 75 100 125 150 175 200 225 250
length (mm)
20
Transecto (Yur•2012)
15 n = t90
Mean = 115
N
� 10
a
a 5
0
0 25 50 75 100 125 150 175 200 225 250
length (mm)
20
Transacts Combined (year- 20121
= 1177
as 15 asMean•99
10
•
d 5
o
0 25 50 75 100 125 150 175 200 225 250
length (mm)
Appendix 12. Length -frequency distributions of bluegill by transect collected with
clectrotishing from Hyco Reservoir during 2012.
Duke Energy Progress 32 Water and Natural Resources

Roxboro Steam Electric Pla 2012 ..Yironmental Monitoring Report
20 Transeclt 1Ye ar=2012)
a. n=89
C 15 Mean = 289
m
10
m
6 $
0 .III■'■ LIII■ .�.._ . . . ..----
0 50 100 150 200 250 300 350 400 450 500 550 600
length (mm)
20 Transact (Year •20121
n-49
15 Mean-304
10
d 5
0 50 100 150 200 250 300 350 400 450 500 550 600
length (mm)
20 Transact 3 (Year-2012)
n=72
O 15 Mean = 271
•
4a 10
G g
0 50 100 ISO 200 250 300 350 400 450 500 550 600
length (mm)
20
� 15
�m 10
,r o
0 50 100 150 200 250 300 350
■ length (mm)
■ 20
15
•
00 t 10
d 5
00 0 0 .11.1 lei 0 loillinalmom
0 50 100 150 200 250 300 350
ISO length (mm)
20
■ 15
as
■ 10
•
■ IL 5
0
Ole0 50 100 150 200 250 300 350
length (mm)
Tra nsect4 (Year =2012)
n=50
Mean = 211
400 450 500 550 600
Transect6 (Year- 2012)
n=71
Mean = 241
400 450 S00 550 600
Transacts Combined (Year= 20121
n-331
Mean - 265
400 450 500 550 600
Appendix 13. Length -frequency distributions of largemouth bass by transect collected with
electrofishing from Hyco Reservoir during 2012.
Duke Energy Progress 33 Water ano Natural Resources

Roxboro Steam Electric Plant 2012 Environmental Monitoring Report
30 Traneec(l wear=2012)
« 25 n 112
r 20 Mean=277
15
a
10
0 50 100 150 200 250 300 350 400 450
length (mm)
30 Trana@02 (Year- 2012)
20 Ma n-287
� 15
u 10
5
0 �� ■ ��■`
0 50 100 150 200 250 300 350 400 450
length (mm)
30
25 nr-110et3 (Year-2012)
Z 20 Mean • 20e
m
15
a 10 ■,I"0. mdmm
5 _
0 50 100 150 200 250 300 350 400 450
length (nam)
30 Tre nee014 (Yaar•2012)
25 n • t1
a: 20 Moon • 20e
15
d 10
5
0 _
0 50 100 150 200 250 300 350 400 450
length (mm)
30,
25
d 20
15
a 10
5
0
0
50 100
30
25
m 20
15
i 10
5
0
0 50
Tranaect6 (Year= 20121
n=19
Mean-315
150 200 250 300 350 400
length (mm)
Transacts Combined (Year= 2012)
n=421
Mean = 278
450
100 150 200 250 300 350 400 450
length (mm)
Appendix 14. Length -frequency distributions of gizzard shad by transect collected with
electrotishing from Ilyco Reservoir during 2012.
Duke Energy Progress 34 Water and Natural Recnurroc

Roxboro Steam Electric Plal._ 2012 1 ronmental Monitoring Report
140 Bluegill
^
3 120 Mean value = 78 ± 9 (SD), n = 217
m 100 ' _
80
60
60
I X 40
75 100 125 150 175 200 225
Length (mm)
A
Gizzard Shad
^ 140
Mean value = 88 ± 8 (SD), n = 136
120
rn • �•
iu 100 •
> 80 ' • : i44�'•'•
•
10 ' • ' •
I � 60
40
0 150 175 200 225 250 275 300 325 350 375
04 Length (mm)
ILargemouth bass
so 140.0
120.0 • Mean value = 87 + 9.4 (SD), n = 128
r t
• 4) 100.0 t �• •
� '' • • > 80.0 g
'Ir-` • • • ••
.}••
r ''� '� •' ••�Ir' •
w 60.0 '
40.0 T
0 125 150 175 200 225 250 275 300 325 350 375 400 425 450
00 Length (mm)
00
00
Appendix B. Relative weight values versus length for bluegill, gizzard shad, and largemouth
bass collected by electrofishing at Transect 3 in Hyco Reservoir during 2012.
Duke Energy Progress 35 Water and Natural Resources
r

Roxboro Steam Electric Plant 2012 Environmental Monitoring Report
140 -
120
t
rn 100
3 80
">
so
40
75
140 --
t
120
rn
100
> 80
Z 60
40 1 —
150
Bluegill
Mean value = 81 + 10 (SDI, n = 97
.f%i• • •�Y••= •� •
100 126 150 175 zoo 225
Length (mm)
Gizzard Shad
Mean value = 84 + 9 (SD), n = 15
•
175 200 225 250 275 300 325 350 375
Length (mm)
Largemouth bass
140.0
?�
Mean value = 82 + 10 (SD), n = 108
120.0
L
O1
•
•
m
100.0
• •
• •
>
80.0
•
••s
•
��j �• s• 0 • •
• •S • •
6
60.0
•
• ` •
of
40.0
125
150 175
200
225 250 275 300 325 350 375 400 425 450
Length (mm)
Appendix 16. Relative weight values versus length for bluegill, gizzard shad, and largemouth
bass collected by electrofishing at Transect 4 in Hyco Reservoir, during 2012.

Roxboro Steam Electric Plan, 2012 Environmental Monitorin Report
00
00
00
00
wo
00
00
00
00
00
00
00
00
.o
00
00
00
00
00
00
00
00
do
No
do
40
y
10U
80
m60-
a�
m
0
a 40
20
0 20 40 60 80 100
PSD Largemouth Bass
Appendix 17. Proportional Stock Density (PSD) ranges for balanced populations of largemouth
bass and bluegill collected from Hyco Reservoir during 2012.
Duke Energy Progress 37 Water and Natural Resources

4 Progress Energy
12520X January 9, 2012
Mr. Ken Pohlig
NC Division of Water Quality
Construction Grants and Loans R�VG'�LD
1633 Mail Service Center �J G
Raleigh, NC 27699-1633
Subject: Roxboro Steam Electric Plant 20�
Authorization to Construct No. 003425A08
Engineer's Certification (QNSTRUC
10Ar1 "TO
Dear Dear Mr. Pohlig:
Attached is the signed Engineer's Certification for the subject Authorization allowing Progress
Energy to start up the Sodium Hydroxide feed pump and delivery system into the coal pile runoff
ditch.
In accordance with the requirements of the A to C, verbal notification was provided to the
Raleigh Regional Office (Mitch Hayes) on January 6, 2012.
Please contact Mr. Shannon Langley at [phone] if you have any questions about this
submittal.
l certify, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate
the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate, and complete. l am aware that there are significant penalties for submitting false information,
including the possibility offines and imprisonment for knowing violations.
Regards,
Mike Mosley '
Plant Manager
Cc: Shannon Langley
Barry Herzberg — DWQRRO
1628 Mail Service Center
Raleigh, NC 27699-1628
Progress Energy Carolinas, Inc.
Roxboro Steam Plant
1700 Dunnaway Road
Semma, NC 27343

o FATE OF NORTH uAROLINA
Department of Environment and Natural Resources
Raleigh Regional Office
FILE ACCESS RECORD
SECTION DATEITIME I I
NAME Laura a-121 REPRESENTING �2 ()rivers
2
C!
5.
a
2
4.
5.
Guidelines for Access: The staff of the Raleigh Regional Office is dedicated to making public
records in our custody readily available to the public for review and copying. We also have the
responsibility to the public to safeguard these records and to carry out our day -today program
obligations. Please read carefully the following before signing the form.
Due to the large public demand for file access, we request that you call at least a day in
advance to schedule an appointment for file review so you can be accommodated.
Appointments are scheduled between 9:00 a.m. and 3:00 p.m. Monday —Thursday. Viewing
time ends at 4:00 p.m. Anyone arriving without an appointment may view the files to the
extent that time and staff supervision are available.
You must specify files you want to review by facility name or incident number, as appropriate.
The number of files that you may review at one appointment will be limited to five.
You may make copies of a file when the copier is not in use by the staff and if time permits.
Cost per copy is 2.5 cents for ALL copies if making more than 25 copies - there is no charge if
less than 25 copies are made. Payment is to be made by check, money order, or cash in the
administrative offices.
FILES MUST BE KEPT IN THE ORDER YOU RECEIVED THEM. Files may not be taken
from the office. No briefcases large totes etc. are permitted in the file review area. To
remove, after, deface, mutilate, or destroy material in one of these files is a misdemeanor for
which you can be fined up to $500.00.
In accordance with General Statute 25-3-512, a $25.00 processing fee will be charged and
collected for checks on which payment has been refused.
The customer must present a photo ID, sign -in, and receive a visitor sticker prior to reviewing
files.
FACILITY NAME COUNTY
RCxh3rc, Powev pipt.j Perm
M94, a Q, )e v- Pl a v�.,� Fersoy\
Q
Sign�An� l �f " - 10U I�'(0o
and Name of Firm/Business Date Time In Time Out
Please attach a business card to this form if available

11
91A Viftl
14j,'ApI("J i)AWW-I.F pue p"U
, 4m OUG ij;Gz!(
Ulf;
oppo-je
bsvovot 2 to piww,,,�, rm tjjoo(FA otfj*! i�P;-
r 161 Off SU
q in
LJ-
(0 Z^PGOFII�i 9)bowp,,;Guj j%, t"iP-.Ni rl,%j p-,
ix-, -v,;Muj ^klrs JC(,'C.U' AtNl ti;Jj 84
:..(I, I CIS i,a
i
AL

`C , Progress Energy
File: 12520B
Mr. Cheng Zhang
NC DENR Raleigh Regional Office
1628 Mail Service Center
Raleigh, North Carolina 27699-1628
Dear Mr. Zheng:
R
ECNE
NOV 2 8 2011
NC DE,%R
RJel�h kagion31 Office
November 21, 2011
RE: Response to inspection letter dated October 13, 2011
Roxboro Steam Electric Plant
NPDES #: NC0003425
Person County, North Carolina
Thank you for your letter referenced above. The inspection letter was received in our office on
October 24, 2011. We have reviewed your comments and provide the following comments and
clarifications to your report. Your comments, followed by our response are included for completeness
and clarity.
DWO Comment #1: The newly built east FGD pond and refurbished west FGD pond are
redundant, at the time of this inspection only the west FGD pond was in use to receive FGD
blowdown water and supernatant from the nearby bioreaetor.Jlush pond Supernatantfrom the
FGD pond is treated by the bioreactors and then discharged in to the canal at Outfall 010.
Progress Enerey Carolinas (PEC) response: The East FGD pond was constructed to allow for repairs
to be made to the west FGD pond and can be used in case of emergency or maintenance needs.
DWO Comment #2: An alum feeding system, which is comprised of two 250-gallon totes, pump,
and solar power panels, is available to feed alum to the channel in the west ash pond The system
was not running at the time of the inspection because the plant was not running wet ash.
PEC Response: For clarification, please note that the alum feed system was not operational at the
time of the inspection because the plant was not running wet fly ash. The site handles bottom ash
through wet sluicing to the west ash pond as part of normal processes.
DWO Comment #3: The domestic wastewater treatment system was operated properly. The
aeration basin was reseeded in July 2011.
PEC Response: No additional comments
Progress Energy Carolinas, Inc.
Roxboro Steam Plam
1700 Dunraway Road
Semma, NC 27343

North Carolina
Beverly Eaves Perdue
Governor
Secretary
©*A
NCDENR 1
Department of Environment and Natural Resources
Division of Water Quality
Coleen H. Sullins
Director
October 13, 2011
Mr. Mike Mosley
Plant Manager
Progress Energy Carolinas, Inc.
Roxboro Steam Electric Generating Plant
1700 Dunnaway Rd.
Semora, NC 27343
Subject: Compliance Evaluation Inspection
NPDES Permit No. NC0003425
Roxboro Steam Electric Generating Plant
Person County
Dear Mr. Mosley:
Dee Freeman
On September 27, 2011, Cheng Zhang and Autumn Romanski of the Raleigh Regional Office (RRO)
conducted a compliance evaluation inspection of the subject facility. The assistance of Ms. Amber
Ramey, Mr. Robert Howard, and Mr. Shannon Langley, was appreciated as it facilitated the inspection
process. The inspection report is attached. The following observations were made:
Progress Energy Carolinas, Inc., Roxboro Steam Electric Generating Plant is authorized to operate
the following systems: ash pond treatment system, heated water discharge canal system, cooling
tower blowdown system, coal pile runoff treatment system, domestic wastewater treatment system,
chemical metal cleaning treatment system, and flue gas desulfurization (FGD) treatment system.
The final effluent is discharged into the Hyco Lake, classified WS-V & B waters in the Roanoke
River basin.
1. The newly built east FGD pond and refurbished west FGD pond are redundant, at the time of
this inspection only the west FGD pond was in use to receive FGD blowdown water and
supematant from the nearby bioreactor flush pond. Supernatant from the FGD pond is treated
by the bioreactors and then discharged in to the canal at Outfall 010.
2. An alum feeding system, which is comprised of two 250-gallon totes, pump, and solar power
panels, is available to feed alum to the channel in the west ash pond. The system was not
running at the time of the inspection because the plant was not running wet ash.
N_o ;tttCarolina
rNllillCQ��f�
North Carolina Division of Water Quality 1628 Mail Service Center Raleigh, NC 27699-1628 Phone [phone] Customer
Service
Internet: w .ncwaterquality.org Location: 3800 Barrett Drive Raleigh, NC 27609 Fax [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

SGWASA WTP .
NPDES Permit No. NG005841
Compliance Evaluation Inspection
3. The domestic wastewater treatment system was operated properly. The aeration basin was
reseeded in July 2011.
4. The coal pile runoff treatment system was observed during the inspection. It was noted that the
proposed sodium hydroxide feed system had not been constructed yet. Caustic is fed to the
runoff manually.
5. Lab results, chain -of -custody forms, and DMRs were complete and current, kept in good order
and ready for review. June 2011 DMR data were compared to lab results; no discrepancies
were noted.
6. Outfalls 002, 003, 006, 008, and 010 were observed during the inspection. It was noted that
there were several leaking spots at outfall 002, not all effluent flew through the v-notch weir,
which affects the accuracy of estimating the flow from the outfall. This problem had been
mentioned in the previous inspection letter dated on August 27, 2009. Mr. Langley stated that
Progress Energy had hired a consultant to evaluate the problem. Please resolve this problem
and respond to RRO in writing within 90 days of receipt of this letter.
The overall condition of the subject facility is compliant with Division standards. If you have any
questions regarding the attached report or any of the findings, please contact Cheng Zhang at: (919)
791-4200 (or email: (cheng zhang(a.ncdenr.gov)).
Sincerely,
C �'",r? &
Cheng Zhang
Environmental Specialist
Attachments: Compliance Inspection Report
W"'X�41ttV3�`
Autumn Romanski
Environmental Senior Specialist
Cc: Central Files w/attachment
Raleigh Regional Office w/attachment
Amber Ramey - Roxboro Steam Electric Generating Plant

SGWASA WTP
NPDES Permit No. NWu68410 •
Compliance Evaluation Inspection
3. The domestic wastewater treatment system was operated properly. The aeration basin was
reseeded in July 2011.
4. The coal pile runoff treatment system was observed during the inspection. It was noted that the
proposed sodium hydroxide feed system had not been constructed yet. Caustic is fed to the
runoff manually.
i
5. Lab results, chain -of -custody forms, and DMRs were complete and current, kept in good order
and ready for review. June 2011 DMR data were compared to lab results; no discrepancies
were noted.
6. Outfalls 002, 003, 006, 008, and 01.0 were observed during the inspection. It was noted that
there were several leaking spots at outfall 002, not all effluent flew through the v-notch weir,
which affects the accuracy of estimating the flow from the outfall. This problem had been
mentioned in the previous inspection letter dated on August 27, 2009. Mr. Langley stated that
Progress Energy had hired a consultant to evaluate the problem. Please resolve this problem
and respond to RRO in writing within 90 days of receipt of this letter.
The overall condition of the subject facility is compliant with Division standards. If you have any
questions regarding the attached report or any of the findings, please contact Cheng Zhang at: (919)
791-4200 (or email: chen .zhanncdenr. ov .
Sincerely,
Cheng Zhang d
Environmental Specialist
Attachments: Compliance Inspection Report
Cc: Central Files w/attachment
W-4.,'/-A:
Autumn Romanski
Environmental Senior Specialist
Raleigh Regional Office w/attachment
Amber Ramey - Roxboro Steam Electric Generating Plant

C,
United states Envimnmental Protection Agency
EPA Washington, D.C. 20460
n Approved.
TA
B No. 2040-0067
roval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 U 2 U 31 NC0003425 111 121 11/09/27 117 l a l r• I 191 c 1 201 I
U lJ lJ
Remarks
21LIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII6
Inspection Work Days Facility Self -Monitoring Evaluation Rating 81 OA —Reserved-
671 169 70 71 I I 721 N I 731 I 174 75I I I
IJ LJ L_L_J I I I I 180
RPRII7....
.. -
Data
'�—��%
POTW naName me a 2 V ,also include Entry Time/Date Permit Effective Date
Roxboro Stea `,„ �� �r � 10:30 AM 11 /09/27 09/07/01
Person Coun Exit Time/Date Permit Expiration Date
�—{�� _1
Roxboro NC 22 �V �. Sn� _ 02:00 PM 11/09/27 12/03/31
Name(s) of O
Other Facility Data
Amber Michell
Name, Atldrel,
Harry K Side Contacted
No
n Check onlythose areas evaluated)
Permit rations & Maintenance Records/Reports
Self -Monitoring Program Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Laboratory
Section D: Summary of Finding/Comments; Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s)//of Inspector(s)
Inspector(s)Agency/Office/Phone and Fax Numbers Date
ll
Chang Zhang (e(�,- �'/ u Q" RRO WW919-791-42001 ( 0/r 712 47
Autumn H Romanski 4 'kMAV J'3 / , RRO W0//919-791 A2471 /
Signature f Manageme AR,, iewer A ency/ /Phone nd Fax Numbers Date
EPA Form 3566-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

Permit: NC0003425
Inspection Date: 09127/2011
Owner - Facility: Roxboro Steam Electric Power Plant
Inspection Type: Compliance Evaluation
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ ❑ ❑ ❑
Judge, and other that are applicable?
Comment: The facility analyzes settleable solids, pH, and DO at the aeration basin of
the domestic sewage treatment plant weekly.
Permit Yes N NA NE
0
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
❑
❑
■
❑
Is the facility as described in the permit?
0
❑
❑
❑
# Are there any special conditions for the permit?
❑
E
❑
❑
Is access to the plant site restricted to the general public?
■
❑
❑
❑
Is the inspector granted access to all areas for inspection?
❑
❑
❑
Comment: The facility has completed and is ready to submit the permit renewal
application.
Record Keeping
Yes No
NA
NE
Are records kept and maintained as required by the permit?
0
❑
❑
❑
Is all required information readily available, complete and current?
■
❑
❑
❑
Are all records maintained for 3 years (lab. reg. required 5 years)?
■
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
E
❑
❑
❑
Is the chain -of -custody complete?
0
❑
❑
❑
Dates, times and location of sampling
111111
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
❑
Transported COCs
Are DMRs complete: do they include all permit parameters?
❑
❑
❑
Has the facility submitted its annual compliance report to users and DWQ?
❑
❑
■
❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 2417 with a certified operator on each shift?
❑
❑
■
❑
Is the ORC visitation log available and current?
■
❑
❑
❑
Is the ORC certified at grade equal to or higher than the facility classification?
■
❑
❑
❑
Page # 3

United States Environmental Protection Agency
Form Approved.
EPA Washingtxxr, D.C. 20460
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCs)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 I N I 2 I s I 3I NC0003425 111 12I 11/0927 117 181 C I 191 c I 201 I
IJ U U G IJ
Remarks
2111111111111111111111111111111111111,111,111,111
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 CA Reserved -----
671 ........
J LJ 169 701 I 71 I tyI 721 N I 73 � 74 75I I I I I I I 180
U
SectionB: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Entry Time/Date
Permit Effective Date
Roxboro Steam Electric Power Plant
10:30 AM 11/0927
09/07/01
Exit TimelOate
Permit Expiration Date
Person County Rd 1377
Roxboro NC 27573
02:00 PM 11/0927
12/03/37
Name(s) of Onsite Representative(s)[Titles(syPhone and Fax Number(s)
Other Facility Data
///
Amber Michelle Ramey/ORC/336-597-6139/
Name, Address of Responsible OfficiaUritle/Phone and Fax Number
Harry K Sideris,1700 Dunnaway Rd Semom NC 27343//336-597-1174/ Contacted
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program 0 Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Laboratory
Section D: Summary of Finding/Comments Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and SignatuInspector(s) Agency/Office/Phone and Fax Numbers Date
rere(s)Jof
Chang Zhang cj� V/ RRO WO//919-7914200/ t fl/r %120
Autumn H Romanski a fY. FRO WO//919-791-4247/ /
Signature f Manageme A Reviewer cy/ a nd Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

Permit: NC0003425 Owner - Facility: Roxboro Steam Electric Power Plant
Inspection Date: 09/27/2011 Inspection Type: compliance Evaluation
Record Keeping Yes No NA NE
Is the backup operator certified at one grade less or greater than the facility classification? ■ ❑ ❑ ❑
Is a copy of the current NPDES permit available on site? ■ ❑ ❑ ❑
Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ■ ❑
Comment:
Flow Measurement - Effluent Yes No NA NE
# Is flow meter used for reporting? ■ ❑ ❑ ❑
Is flow meter calibrated annually? ■ ❑ ❑ ❑
Is the flow meter operational? ■ ❑ ❑ ❑
(If units are separated) Does the chart recorder match the flow meter? ❑ ❑ ■ ❑
Comment: The only applicable flow meter is the one installed at the bioreactor effluent
(Outfall 010). The meter was calibrated on December 5, 2010.
The facility monitors flow at Outfall 002 (Ash Pond and Outfall 010 FGD treated
combined flow) by open channel meter (v-notch weir and staff gauge). Several leaking
spots was observed during the inspection from the dam where the v-notch was located,
which make the flow estimate inaccurate. The facility has contracted MatTec to evaluate
the situation and provide a solution.
Secondary Clarifier
Yes
No
NA
NE
Is the clarifier free of black and odorous wastewater?
■
❑
❑
❑
Is the site free of excessive buildup of solids in center well of circular clarifier?
■
❑
❑
❑
Are weirs level?
■
❑
❑
❑
Is the site free of weir blockage?
■
❑
❑
❑
Is the site free of evidence of short-circuiting?
■
❑
❑
❑
Is scum removal adequate?
■
❑
❑
❑
Is the site free of excessive floating sludge?
■
❑
❑
❑
Is the drive unit operational?
■
❑
❑
❑
Is the return rate acceptable (low turbulence)?
■
❑
❑
❑
Is the overflow clear of excessive solids/pin floc?
■
❑
❑
❑
Is the sludge blanket level acceptable? (Approximately Y. of the sidewall depth)
■
❑
❑
❑
Comment:
Aeration Basins
Yes No
NA
NE
Mode of operation
Ext.
Air
Page # 4

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Pennit: NC0003425 Owner - Facility: Roxboro Steam Electric Power Plant
Inspection Date: 09/27/2011 Inspection Type: compliance Evaluation
Lagoons
Yes
No
NA
NE
Is lagoon free of excessive Floating materials?
❑
❑
■
❑
# Are baffles between ponds or effluent baffles adjustable?
n
n
■
❑
Are dike slopes clear of woody vegetation?
❑
❑
0
❑
Are weeds controlled around the edge of the lagoon?
❑
0
■
❑
Are dikes free of seepage?
❑
fl
■
❑
Are dikes free of erosion?
❑
Cl
s
❑
Are dikes free of burrowing animals?
❑
❑
0
❑
# Has the sludge blanket in the lagoon (s) been measured periodically in multiple locations?
❑
❑
■
❑
# If excessive algae is present, has barley straw been used to help control the growth?
❑
❑
■
Q
Is the lagoon surface free of weeds?
❑
❑
m
❑
Is the lagoon free of short circuiting?
❑
❑
Is
❑
Comment: The facility has a FGD flush pond and two FGD settling ponds (accept
FGD blowdown water, the west pond was a refurbished one and the east pond was
newly built in 2010). The two FGD ponds are redundant, currently only the west pond is
in use. Supernatant from the flush pond is pumped into one of the settling ponds once
every six months. The east pond can be used as needed to manage and settle FGD
wastewater. It also provides additional FGD wastewater storage capacity, and acts as
wastewater containment should the West Pond overflow.
The facility also has a coal pile runoff pond to receive and treat stormwater runoff from
the coal pile. The proposed sodium hydroxide feeding system has not been installed.
Caustic is currently fed to the runoff manually.
Chemical Feed
Yes
No
NA
NE
Is containment adequate?
■
❑
❑
❑
Is storage adequate?
■
❑
❑
❑
Are backup pumps available?
■
n
n
❑
Is the site free of excessive leaking?
■
❑
❑
❑
Comment: A alum feed system consists of two 250-gallon totes, a pump, and solar
power supply feed alum to the low volume waste stream in the Ash Pond.
Effluent Pipe
Yes
No
NA
NE
Is right of way to the outfall properly maintained?
❑
❑
M
Are the receiving water free of foam other than trace amounts and other debris?
❑
❑
■
❑
If effluent (diffuser pipes are required) are they operating properly?
❑
❑
■
❑
Page # 6

Ll
Permit: NC0003425 Owner • Facility: Roxboro Steam Electric Power Plant
Inspection Date: 09/27/2011 Inspection Type: Compliance Evaluation
Effluent Pipe
Comment: Outfalls 002, 003, 006, 008, and 010 were observed during the inspection,
which were in good condition, except that the leaking spots at Outfall 002 dam need to
be repaired. It was noted that the effluent pipe at 010 had been extended down the
bank and submerged under water at the Outfall 002 canal. No foams or debris were
observed at Outfall 003, the final NPDES outfall. There were no discharge at other
outfall at the time of this inspection.
Yes No NA NE
Page # 7

Permit: NC0003425 Owner • Facility: Roxboro Steam Electric Power Plant
Inspection Date: 09/27/2011 Inspection Type: Compliance Evaluation
Effluent Pipe
Comment: Outfalls 002, 003, 006, 008, and 010 were observed during the inspection,
which were in good condition, except that the leaking spots at Outfall 002 dam need to
be repaired. It was noted that the effluent pipe at 010 had been extended down the
bank and submerged under water at the Outfall 002 canal. No foams or debris were
observed at Outfall 003, the final NPDES outfall. There were no discharge at other
outfall at the time of this inspection.
Yes No NA NE
Page # 7

NCDENR t
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freelran
Govemor Director Secretary
August 16, 2011
Progress Energy Carolinas, Inc.
Attention: Mr. Mike Mosley, Plant Manager
Roxboro Steam Plant
1700 Dunnaway Road
Semora, NC 27343
Subject: Roxboro Steam Electric Plant—NC0003425 Person County
FGD Wastewater Treatment Systems
Repairs and Monitoring
Dear Mr. Mosley:
In correspondences dated March 4, 2008 the Division of Water Quality Raleigh Regional Office
requested additional monitoring from the Roxboro Steam Electric facility.
This additional monitoring was in response to a Progress Energy of the Carolina's (PEC)
February 25, 2008, notice of an "anticipated bypass "[NPDESpermit,Part H,,Section C, 4.b.(1)1
for the Roxboro Flue Gas Desulfurization (FGD) Wastewater Treatment Systems at the Roxboro
Steam Electric Generating Plant (NC0003425). PEC explained that the FGD Settling Pond was
seeping and at risk of failure. Accordingly, Progress Energy explained they were preparing to
dewater the FGD Settling Pond into the adjacent Ash Pond to reduce the hydraulic head in the
FGD Settling Pond.
On February 27, 2008, PEC notified DWQ RRO staff that the FGD Flush Pond berm had partially
failed, such that a 8 to 12 foot wide berm failure had occurred allowing water to discharge into the
adjacent Ash Pond. [It was explained to DWQ that the FGD Flush Pond contained FGD Bioreactor
"start-up " water and did not house backwash water from the FGD Bioreactor.]
This monitoring request was subsequently revised on November 6, 2009 and November 13, 2009, by
DWQ RRO.
PEC has affected repairs to the flush pond, settling basin, and has constructed a new settling basin. On
August 2, 2011, Division of Water Quality (DWQ) Raleigh Regional Office (RRO) received a PEC
request to rescind the above mentioned additional monitoring.
Accordingly, by copy of this letter dated August 16, 2011, the additional monitoring and reporting
depicted in the letters dated March 4, 2008, November 6, 2009, and November 13, 2009 is no
longer requested and may be discontinued.
ne
iil
nCaroina
Nattrrally
North Carolina Division of Water Quality Raleigh Regional Office Surface Water Protection Phone [phone] Customer Service
Internet: www.ncwaterquality.org 1628 Mail Service Center Raleigh. NC 27699-1628 FAX [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

Page 2 of 2
Thank you for your attention to this matter. PEC should continue any and all monitoring and reporting
as required by the"permit and any PEC deems necessary to operate all wastewater treatment systems at
optimum efficiency and in a manner consistent with the NPDES permit.
If you have any questions please do not hesitate to call me at [phone].
Si cere,
!�
Danny Smi
Raleigh gional Supervisor
Surface Water Protection
cc: RRO File Copy
NPDES Files

f
Romanski, Autumn
From: Langley, Shannon [[e-mail]]
Sent: Monday, August 08, 2011 2:27 PM
To: Romanski, Autumn
Subject: RE: Withdrawal letter to Jeff Poupart
Autumn,
That is correct. It should have read "June 15, 2011". That is my fault. You can attach this email to the letter for
clarification if you wish.
Shannon
E. Shannon LangCey
Senior Environmental Specialist
Environmental Services Section - Carolinas
Progress Energy Carolinas, Inc.
[phone] (public)
8-770-2439 (voicenet)
` ci Progress Energy
From: Romanski, Autumn [mailto:[e-mail]]
Sent: Monday, August 08, 2011 2:24 PM
To: Langley, Shannon
Subject: Withdrawal letter to Jeff Poupart
Hi Shannon,
Hope you and your family are doing well.
I just wanted to check on a date that was given in the SOC Withdrawal Letter. The first paragraph last
sentence "The refurbished west settling pond was put back into service on June 15, 2010". Should it be
corrected to June 15, 2011?
I think this is a typo- my records show dewatering of the west pond to the east pond in August 2010 and start
up of the East pond, so it appears at that time the west pond would not have been refurbished and put back in
service in 2010.
Thank you for your consideration.
Autumn

`v 14 Progress Energy
File: 12520-B August 2, 2011
Mr. Danny Smith
NC Division of Water Quality
Raleigh Regional Office
1628 Mail Service Center Raleigh, NC 27699-1628 " R "� ` ^' _'
Subject: Monitoring Revision AUG 3 2011
Roxboro Steam Electric Plant v111 "M
NC0003425 ROkirr 7":
Person County
Dear Mr. Smith:
In accordance with your requests for additional monitoring dated March 4, 2008 and November
6, 2009, Progress Energy has conducted an extensive monitoring program at various locations
throughout the FGD wastewater treatment process as the settling pond issues were being
addressed. This data has been routinely reviewed by our staff and submitted to your office in the
format you requested.
On July 29, 2011, Mr. Fred Holt and Mr. Shannon Langley met with you to discuss the status of
the Special Order of Consent (SOC) for the subject facility. At that meeting, you were given a
copy of a letter dated July 20, 2011, withdrawing our application for a SOC. As was discussed at
that meeting, Progress Energy hereby requests a rescinding of the additional monitoring
requirements as directed in your letters of March 4, 2008 and November 6, 2009.
We appreciate your assistance. If you have any questions, please feel free to contact Shannon
Langley at [phone].
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility off:nes and imprisonment for knowing violations.
Regards,
Mike M/ sle a� t Manager
Roxboro Ste Electric Plant
Progress Energy Carolinas, Inc.
Roxboro Steam Plant
1700 Dunnaway Road
Somme, NC 27343

Progress Energy
File: 12520-B
Mr. Jeff Poupart, Supervisor
Point Source Branch
North Carolina Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Withdrawal of Application for Special Order by Consent
Progress Energy Carolinas, Inc.
Roxboro Steam Electric Plant
NPDES Permit No.: NC0003425
Person County
Dear Mr. Poupart:
July 20, 2011
JUL 2 9 Zan
On March 30, 2009 Carolina Power & Light Company d/b/a Progress Energy Carolinas, Inc. hereinafter
referred to as "PEC", made application for a Special Order by Consent to allow for refurbishment of
wastewater treatment basins associated with the site's Flue Gas Desulphurization (FGD) wastewater
treatment process. Since that time, PEC has completed the refurbishment of the site's forward flush pond,
built a new wastewater settling pond commonly referred to as the "east pond" and completed
refurbishment of the site's west FGD settling pond. These activities were completed as authorized by
both NC DWQ and NC DLR Dam Safety staff. The refurbished west settling pond was put back into
service on June 15, 2010 completing the work on this project.
With this work complete, there is no further need for the Special Order by Consent and PEC is, therefore,
withdrawing the subject application. PEC is in the process of preparing the required application for
renewal of the Roxboro Plant's NPDES permit. The application is due no later than October 2, 2011.
PEC believes that any related issues can be best addressed in the renewed permit.
If you have any questions, please feel free to contact Mr. Shannon Langley at [phone] or
shannon.langley(a)pgnmail.com.
Regards,
Mike Mosley, Plant Manager
Roxboro Steam Electric Plant
MM/sl
Cc: Danny Smith
Shannon Langley
Billy Milam
Progress Energy Carolinas, Inc.
Roxboro Steam Plant
1700 Dunnaway Road
Semora, NC 27343

`� Progress Energy
File 12520-B
Tom Belnick, Supervisor
Complex NPDES permitting Unit
NC Division of Water Quality
1617 Mail Service center
Raleigh, NC 27699-1617
Subject: Administrative Update to NPDES Application
Roxboro Steam Electric Plant
NC0003425
Person County
Dear Mr. Belnick;
July 27, 2011
RO"L9UED
JUL 2 8 2U11
�aleig� ,�ywaloft
This letter is intended to provide additional information for the NPDES permit file and
application of record for the subject facility.
The current application on file provides explicitly for the west ash pond that receives and treats
bottom ash sluice wastewater and other wastewaters. The application also provides implicitly
for an east ash pond that no longer receives ash sluice water but receives storm water runoff and
leachate from the dry fly ash monofill that is located within and adjacent to the east ash pond.
The east ash pond directs its discharge to the west ash pond where it is combined with the
wastewater in the west ash pond and discharged via internal monitoring point 002 to outfall 003
PEC is adding the following information to attachment 4 of the facility's NPDES application:
The facility may transfer settled ash from the west ash pond to fill remaining capacity in the east
ash pond as needed. The boundaries of the east ash pond have been identified (surveyed) and
recorded on a survey plat. This activity maybe undertaken to provide treatment capacity (i.e.
volume) in the active, west ash pond and or in preparation for landfill expansion in accordance
with permits issued through the NC Division of Solid Waste.
We are making this amendment to the facility's official NPDES application to support ash pond
maintenance and landfill expansion site prep activity planned to begin in the third quarter of this
year. We do not believe this notification and file amendment will result in the need for, nor are
we seeking, amendment to the facility's NPDES permit for this activity as neither the discharge
characteristics nor permit limits will be altered . This is intended to allow for flexibility in
maintenance and to enhance the treatment capacity of the facility's active ash pond.
Please contact Mr. Shannon Langley at [phone] or Shaluion.langley a�pgnmail.com if you
have any questions.
Progress Energy Carolinas, Inc.
Roxboro Steam Plant
V00 Dunnaway Road
Semma, NC 27343

I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
parsons -who -manage- the -system, -or those_persons directly responsible forgathering the.
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. 1 am aware that there are significant penalties for submitting false information,
including the possibility offines and imprisonment for knowing violations.
Regards,
Mike Mosley, Plant Manager
Roxboro Steam Electric Plant
Cc: Robert Howard (ROX files)
Shannon Langley (PEB4)
Danny Smith — DWQ RRO

`� Progress Energy
File: 12520-B
Mr. Jeff Poupart, Supervisor
Point Source Branch
North Carolina Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Withdrawal of Application for Special Order by Consent
Progress Energy Carolinas, Inc.
Roxboro Steam Electric Plant
NPDES Permit No.: NC0003425
Person County
Dear Mr. Poupart:
July 20, 2011
On March 30, 2009 Carolina Power & Light Company d/b/a Progress Energy Carolinas, Inc. hereinafter
referred to as "PEC", made application for a Special Order by Consent to allow for refurbishment of
wastewater treatment basins associated with the site's Flue Gas Desulphurization (FGD) wastewater
treatment process. Since that time, PEC has completed the refurbishment of the site's forward flush pond,
built a new wastewater settling pond commonly referred to as the "east pond" and completed
refurbishment of the site's west FGD settling pond. These activities were completed as authorized by
both NC DWQ and NC DLR Dam Safety staff. The refurbished west settling pond was put back into
service on June 15, 2010 completing the work on this project.
With this work complete, there is no further need for the Special Order by Consent and PEC is, therefore,
xe ithdrawing the subject application. PEC is in the process of preparing the required application for
renewal of the Roxboro Plant's NPDES permit. The application is due no later than October 2, 2011.
PEC believes that any related issues can be best addressed in the renewed permit.
If you have any questions, please feel free to contact Mr. Shannon Langley at [phone] or
shannon.langley(@.penmail.com.
Regards,
Mike Mosley, Plant Manager
Roxboro Steam Electric Plant
MM/sl
Cc: Danny Smith
Shannon Langley
Billy Milam
Progress Energy Carolinas, Inc. A V u 0 3 2011
Roxboro Steam Plant
1700 Dunnaway Road DENR-WATER OUAt
Semora. NC 27343 POINT SOURCE BRA

a
Progress Energy
Draft SOC comments — Roxboro Steam Electric Plant
February 23, 2011

•
Table of Contents
I. Modifications to proposed Hyco Lake monitoring as
condition of SOC.
a. Water chemistry monitoring
b. Fish tissue
II. General Comments on DRAFT Special Order by
Consent.
III. Modifications requested to Plant sampling program.
IV. Summary Table of data from Hyco Lake 2009-2010.
2

s
Section I. Modifications requested to proposed Hyco Lake monitoring as
condition of SOC
a. Water Chemistry monitoring Program:
1. Stations - Progress Energy Carolinas, Inc. (PEC) proposes to conduct continued
monitoring from established stations identified in the Plant's Biological Monitoring
Plan. This will best allow for analysis of data and comparison over the historic
record of over 30 years of intensive analysis performed in the Lake by PEC. These
stations align with the stations identified in the NC DWQ proposal in terms of intent.
Station 4B is in close proximity to the plant's discharge. Station 6B is in close
proximity to the plant's intake (Note that DWQ identified the plants auxiliary intake
as the plant intake on their proposal). PEC will add one additional station upstream
on the North Hyco arm of the Lake in the general area identified on the NC DWQ
proposal.
PEC will conduct monitoring at a frequency as identified in the approved biological
monitoring plan (currently every other month). We believe this frequency to be
representative and adequate to identify any seasonal changes and any trends.
Monthly sampling was conducted during 2009 as part of the studies initiated by
Progress Energy in evaluating wastewater discharges. Summary results from that
sampling extensive are attached.
2 Remove mid and bottom samples: Analyzing constituent concentrations (including
trace elements) throughout the water column of Hyco Reservoir would be of limited
value because the water body remains well mixed throughout the year. Unlike other
non -heated reservoirs that exhibit strong monomictic stratification patterns typical of
Southeastern U.S. reservoirs, Hyco Reservoir does not strongly stratify due to normal
plant operations and the use of a deep water intake (auxiliary intake) during summer
months. The combination of these two factors results in vertical mixing within the
reservoir during the summer months. Only the very deep portions of the reservoir
become strongly stratified. In the winter months, the heating from power plant
operations is not enough to overcome the natural turnover tendencies common in this
region of the country. The result is a year round well -mixed reservoir.
3

Because of this phenomenon, mid -water column samples tend to show little
difference in concentrations of constituents from that of surface water samples. This
sampling approach has been repeatedly approved by DWQ as a part of the biological
monitoring plan review. As we discussed on February 4, 2011, sampling deep bottom
waters where non -mixed anoxic waters are found is also of limited value because the
percentage volume of this portion of the total water volume is very low. While
concentrations of trace elements can become elevated through re-solubilization in
these anoxic zones, the relative impacts to the overall water column is minimal
because of the small volume of these zones in the reservoir.
Remove proposed monitoring for sulfates — The Water quality criterion for WS-V 6 �j
\ waters is 250 mg/l. The highest single value lake wide in last two years is 33.7 b !
(based on 59 data points). The mean value for that time period was 23.18 mg/I. it' ek
L''
4. Remove proposed monitoring for Barium —The Water Quality criterion is 1000
ug/l. The highest single value in lake over last two years is 48 ug/l (based on 60 data
points). The mean value for that time period was 34.6 ug/l.
5. Remove proposed monitoring for Nickel — The water quality criterion is 25 ug/l.
The highest single lake wide value 1.93 ug/l. (Based on 60 data points). The mean
value for that time period was 0.76 ug/l.
6. Remove proposed Methyl mercury water column sampling— As discussed on
February 4, 2010, PE conducts fish tissue analysis for mercury and water column
analysis for total mercury. The water quality criterion is expressed as total mercury.
S� As stated in EPA's Guidance for Implementing the January 2001 Methylmercury
Water Quality Criterion, "Nearly 100 percent of the mercury that bioaccumulates in
the u r tro hic level fish(predator) tissue is meth lmerc " PEC conducts fish
tissue analysis currently as discussed in Section 11 b. of this document. This should
adequately addresses any concern with bioaccumulation of mercury. PEC will
perform low level mercury analysis (method 1631) within Hyco Lake as part of the
Lake proposed monitoring program. The combination of low level water sampling
analysis and continued fish tissue analysis provides sufficient information with regard
to this parameter.
4

r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Land Resources
Land Quality Section
James D. Simons, PG, PE Beverly Eaves Perdue, Governor
Director and State Geologist Dee Freeman, Secretary
Final Approval to Impound
November 17, 2010
Mr. Fred T. Holt RECEIVED
Progress Energy Carolina, Inc.
Post Office Box 1551
Raleigh, North Carolina 27602 NOV 1 9 2010
RE: Roxboro East SettlingPond Dam uc OENR
Raleigh Regional Office
Person County
State Dam ID: PERSO-041
Dear Mr. Holt:
This concerns your submittal of as -built record drawings for the construction of the subject dam
which were dated September 27, 2010, and received in this office on September 29, 2010.
Construction of the subject dam was begun prior to January 1, 2010, at which time the dam
became subject to the requirements of the Dam Safety Law of 1967 (NCGS 143-215.23). The
dam's construction was certified by Mr. Jon A. Winterhalter, PE. Also, Check No. 199816 in the
amount of $29,562.63 serving as the additional application processing fee was received on
September 29, 2010.
An inspection of this dam was made by Land Quality Section staff of the Raleigh Regional
Office on October 21, 2010. The dam was found to be in substantial conformance with the
submitted as -built record drawings, and you may impound water subject to the following
stipulations:
All areas of the embankment shall be permanently stabilized in accordance with Sheet Cl of
plan drawings dated June 8, 2010, and received by this office on June 10, 2010, which
called for permanent vegetation in accordance with Standard 6.11 of the North Carolina
Erosion and Sediment Control Planning and Design Manual.
All toe drain outlets shall be clearly marked and visible for inspection and monitoring
purposes. At least one outlet appeared to be buried beneath fill material at the time of our
inspection. It is recommended that they be permanently marked in the field and protected
from mowing equipment or other damage.
3. An emergency action plan (EAP) must be submitted and approved for the subject dam
within 45 days of this approval. An EAP was received by our office on September 29,
1612 Mail Service Center, Raleigh, North Carolina 27699-1612 • Telephone [phone] / FAX: [phone]
512 North Salisbury Street, Raleigh, North Carolina, 27604 • Intemet:http://www.dlr.enr.state.nc.us/pagesAandqualitysection.htmi

Mr. Holt , - Pr Ass Energy Roxboro Dams
EAP Revisions Requested State ID #s PERSO-002, -013, -038, -039, -040, -041, -042
October 11, 2010
Page 2 of 4
Dam Name
Dam State ID Number
NID Number
Roxboro West Ash Pond South Rock
Filter
PERSO-039
NC06007
Roxboro West FGD Settling Pond
PERSO-040
NC06008
Roxboro East FGD Settling Pond
PERSO-041
NC06009
Roxboro FGD Forward Flush Pond
PERSO-042
NC06010
2. It is recommended that the general location maps show where the dams are located
relative to other key local roads and population centers such that each of the dam
locations and key local road names are labeled. A larger scale may be appropriate.
3. Page 3 of the EAP for the West Ash Pond Dam and associated structures (PERSO-038,
PERSO-039, PERSO-040, PERSO-041, and PERSO-042) provides a dam description for
the Roxboro West Ash Pond Dam (PERSO-038). Please provide a dam description for
all dams included within the EAP.
4. We appreciate your use of the Natural Resource Conservation Service (MRCS) EAP
template shell as a starting base for development of your EAPs. It has been brought to
our attention that the emergency level notification numbering system in the NRCS shells
do not correspond to the North Carolina Emergency Management Agency notification
numbering system. In order to prevent confusion, this Division will utilize the emergency
levels listed below. Please revise your emergency levels accordingly.
Emergency Level listed in the
Progress Energy Roxboro EAPs
North Carolina Dam EAP Emergency Level
1
Slowly Developing Failure or Unusual
Situation
2
Potential Dam Failure Situation, Rapidly
Developing
3
Dam Failure is Imminent or in Progress
5. In the event of a potential, imminent, or occurring dam failure (Level 2 or 3), the North
Carolina State Warning Point should be contacted by the person responsible for
implementing the EAP. Please revise the notification sequence such that the North
Carolina State Waming Point receives notification as soon as possible after 911 is
contacted for these levels.
6. For the Slowly Developing Failure or Unusual Situation please reference the "Raleigh
Regional Office, Land Quality Section Staff at [phone] and Central Office Dam
Safety Staff at [phone]." For this level event, notification during regular business
hours is sufficient. Any member of the Land Quality Section may respond to a dam
emergency, therefore individual staff names are not necessary. For Potential Dam
Failure Situation, Rapidly Developing and Dam Failure is Imminent or in Progress
scenarios, the NC State Warning Point will contact the appropriate Land Quality Section
staff, in lieu of contacting Steve McEvoy, PE, as a representative of the State Dam Safety

L.
Mr. Holt Energy Roxboro Dams
EAP Revisions Requested State ID #s PERSO-002, -013, - 8, -039, -040, -041, -042
October 11, 2010
Page 3 of 4
Program in the Emergency Level Notifications. The State Warning Point should be
moved up the list and called directly by Progress Energy staff on scene.
7. On Page 16 of each EAP, please correct the street address for the NC State Warning Point
and the Raleigh Regional Office, Land Quality Section. The street address is 3800
Barrett Drive. Also, the mailing address zip code for the Person County Emergency
Management Services is 27573.
8. On Page 22, Copy Number 6 should be mailed to the Dam Safety Program, Division of
Land Resources, Land Quality Section, 1612 Mail Service Center, Raleigh, North
Carolina 27699-1612. Copy 7 should be mailed to the Division of Land Resources, Land
Quality Section, Raleigh Regional Office, 3800 Barrett Drive, Raleigh, North Carolina
27609.
9. On Page 22, Copy Number 9 should be mailed to the Person County Emergency
Management Services, 216 West Barden Street, Roxboro, North Carolina 27573.
10.On Page 24, it is not necessary to include the signatures for the North Carolina Dam
Safety Program nor the Raleigh Regional Office, Land Quality Section. Our approval
letter will indicate our review and acceptance of the EAP.
11. The inundation maps contained in Appendix B-3 for Lake Hyco Dam (PERSO-002) and
Roxboro Afterbay Dam (PERSO-013) are identical, and appear to begin with a failure of
the Roxboro Afterbay Dam. Inundation maps should contain the dam locations and
downstream area such that the boundaries of the evacuation maps may be easily
interpreted by emergency personnel staff. Please revise these maps to include the
location of the.dams and topographic features recognizable by local authorities. A larger
scale may be appropriate.
12.One inundation map is contained in Appendix B-3 of the EAP for the West Ash Pond
Dam and associated structures (PERSO-038, PERSO-039, PERSO-040, PERSO-041, and
PERSO-042). Please confirm whether the inundation map would apply for failure of any
of the 5 dams, or include a map applicable for each potential dam failure.
13. Briefly discuss your methods for determining the inundation area. It is recommended that
you include a qualification stating that the inundation limits for an actual dam failure may
vary in some ways from what is shown on the inundation map.
14. The evacuation maps contained in Appendix B-4A and B-413 for the Lake Hyco Dam
(PERSO-002) Roxboro Afterbay Dam (PERSO-013) are identical, and appear to begin
with failure of the Roxboro Afterbay Dam. These evacuation maps should be referred to
as the Downstream Hazards Maps, and contain the dam locations and locations of the
downstream hazards such that the maps may be easily interpreted by emergency
personnel staff. Please revise these maps to include the location of the dams and
topographic features recognizable by local authorities. A larger scale is necessary. If you
desire, you may combine the downstream hazards maps with the inundation maps for
convenience.

Mr. Holt P4-- 3nergy Roxboro Dams
EAP Revisions Requested State ID #s PERSO-002, -013, -038, -039, -040, -041, -042
October 11, 2010
Page 4 of 4
15. The Highways at Risk outlined in Appendix B-5 for the Lake Hyco Dam (PERSO-002)
Roxboro Afterbay Dam (PERSO-013) should be described in greater detail. For
example, State Route 714 could be listed as "Woodsdale Road (SR 714), where the
bridge crosses the Hyco River."
16. Please revise the dam coordinates for the Roxboro Afterbay Dam (PERSO-013) in
Appendix B-9. The coordinates for this dam are Latitude: 36.5223, Longitude:-78.997.
17. For reference, the expected inspection frequency of these dams in Appendix B-9 will be
at least every 2 years.
18. Appendix B-9 for the West Ash Pond Dam and associated structures (PERSO-038,
PERSO-039, PERSO-040, PERSO-041, and PERSO-042) lists the same coordinates for
each dam. Please clarify. A sheet can be provided by this office for each dam with
individual information.
19. Please provide signatures of the dam owner, dam EAP preparer, and the person
responsible for implementing each EAP in the event of a dam emergency. Also include
printed or typed names with each signature.
20. All stakeholders and responders downstream of the dams shall be contacted for input and
planning for the EAPs.
Your efforts toward developing EAPs are appreciated. Accurate EAPs will reduce the potential
for loss of life should a dam failure occur. Please revise the EAPs to include the modifications
and additional information as requested, and submit two copies to this Office no later than thirty
days following receipt of this letter. Once the modifications are completed, a final approval of
your EAPs can be issued.
Please contact Ms. Tami Idol, EI, or me at [phone] should you have questions or need
additional information.
Sincerely,
Steven M. McEvo ,
State Dam Safety eer
Land Quality Section
cc: Mr. Harry Sideris, Progress Energy
Mr. Al Tice, PE, MACTEC Engineering & Consulting
Mr. John Holley, PE, Land Quality Regional Engineer
Mr. Danny Smith, Surface Water Protection Regional Supervisor
Mr. Michael Day, Person County Emergency Management Agency
File Name: PERSO-002_013_038_039_040_041_042_Roxboro_EAP_RevRecL20101011.doc

A, j� LA
NCDENR
North Carolina Department of Environment and
Division of Land Resources
Land Quality Section
James D. Simons, PG, PE
Director and State Geologist
September 30, 2010
Mr. Harry Sideris, Plant Manager
Progress Energy Carolinas, Inc.
1700 Dunaway Road
Seniors, NC 27343
RE: Roxboro East Settling Pond Dam
Person County
PERSO-041
Dear Mr. Sideris:
Natural Resources
geuedy�aues�A4ettlne;:�li�tnoi^�TM �,�. ,
OCT — 5 2010
N
VJi�T�H GUF.LITY -"� ZCFl
This is to acknowledge receipt of your "as -built' submittal and application for impoundment dated September 27,
2010 for the subject dam The submittal was received in our office on September 29, 2010. Also, Check No.
199816 in the amount of $29,562.63 serving as the additional application processing fee was received on September
29,2010.
Applications requiring an Approval to Impound require a comprehensive field inspection by our Regional Office
personnel. Upon completion of the requisite field inspection and finding by our field personnel that the dam has
been constructed in conformance with the approved plan and as reported in the as -built submittal, our office will
issue an Approval to Impound. If significant discrepancies are found to exist, revisions may be required before
Approval to Impound can be issued. We endeavor to respond to applications within 60 days of receipt of the
application.
Please contact Mr. John Holley, PE, Regional Engineer, Land Quality Section, 1628 Mail Service Center, 3800
Barrett Drive, Raleigh, North Carolina 27609, telephone number [phone], or me at telephone number (919)
733-4574 should you have any questions concerning this matter.
Sincerely, fi
Steven M. McEvoy, PE
State Dam Safety Engineer
Land Quality Section I
SMM/rdk OCT $ 2010 J
cc: Mr. John A. Winterhalter, PE, Design Engineer OFFICE
Ms. Janet Boyer, PE, Land Quality Regional Engineer N" --
Surface Water Protection Supervisor
Filename: PERSO-041 20100929 RECT-As-built
1612 Mail Service Center, Raleigh, North Carolina 27699-1612 - Telephone [phone] / FAX: [phone]
512 North Salisbury Street, Raleigh, North Carolina, 27604 - Intemethttp://www.dlr.enr.state.nc.us/pagesflandqualitysection.html

1
SOC Timeline for Progress Energy Roxboro Plant
February 2008-West FGD Settling Pond structural failure with resulting treatment bypass of 50 million
gallons to ash pond.
February 26, 2008-Meet with Progress Energy (RRO SWP and RRO DLR) Roxboro Site visit and document
treatment unit failure.
February 27, 2008-FGD Flush Pond structural failure with resulting FGD backwash having to be sent to
the failed West FGD Settling Pond for approx. 2 yrs.
March 3, 2008-Meeting with Progress Energy
March 4, 2008 Mailed letter requesting explanation of treatment unit failures, operational changes
resulting from event, disposal of solids in flush pond, treatment unit repairs, and describe nature of
wastewater, as well as, requested additional monitoring requirements in addition to the current permit
requirements with regards to surface water and groundwater sampling.
March 11, 2008-Meeting with progress Energy (EPA visit)
March 26, 2008-Received Progress Energy Response to letter dated March 4, 2008.
April 18, 2008-A to C for temporary piping of FGD flush pond backwash to West FGD Settling Basin.
May 14, 2008-Meeting with AQP to discuss well sampling at PE Roxboro Plant.
May 19, 2008-Meeting with Sergei Chernikov of Permitting to discuss Roxboro Permit Application
records.
May 23, 2008-Meeting with Shannon Langley of PE
May 30, 2008-Meeting Archdale on Roxboro Plant
June 3, 2008-Meeting to discuss Roxboro Plant data -and EPA request for data.
June 18, 2008-Met with ESS to discuss Surface water Lake Sampling at Hyco Lake -Roxboro Plant
July 9, 2008-Met with ESS to discuss sampling plan and design for July sampling event.
July 21, 2008-RRO conducted sampling at the Roxboro NPDES outfalls. ESS conducted sampling at Hyco
La ke.
August 19, 2008-Met with CG&L about Roxboro Plant
August 29, 2008-Meeting on Roxboro plant data results
September 19, 2008-Meeting with ESS

October 8, 2008-Discussions a -mails with Ken Polig CG&L on Roxboro bioreactor and pond designs.
October 9, 2008-Met with Connie Brower Classifications unit on water quality standards as they relate
to data we received from Roxboro Plant.
November 6, 2008-Met with Connie Brower of Classifications Unit and Sergei Chernikov of Permitting to
discuss Roxboro Data
November 17, 2008-Met with Progress Energy (DWQ Upper Management and PE upper Management)
RRO, ESS, Permitting, discussed Roxboro bypass, DWQ subsequent monitoring request, and results data.
Resolution was PE's intent to file a SOC Application.
December 1, 2008- RRO sent letter to Roxboro Plant regarding FGD wastewater treatment units,
monitoring and repairs, special order by consent, and final effluent.
December 3, 2008-Participated in EPA webcast on FGD
December 15, 2008-RRO received Roxboro Plant Response to letter dated December 3, 2008.
December 30, 2008-Ervin Lane with Solid Waste sent letter to Roxboro Plant regarding the data results
RRO shared with Solid Waste regarding Thallium, Boron, and Nickel.
January 26, 2009-RRO drafted a letter with the items that should be addressed in a SOC Application.
February 3, 2009-RRO received Roxboro Plant treatment unit failure analysis.
February 12, 2009-Meeting Archdale on power plants.
March 29, 2009-SOC meeting with Progress Energy at RRO.
March 30, 2009-RRO received SOC Application.
April 17, 2009-Meeting RRO to discuss Roxboro Plant SOC.
May 8, 2009-PE requested SOC language draft from RRO
May 15, 2009-CG&L A to C approved reconstruction of settling pond and flush pond.
May 22, 2009 Permit Modification with regards to addition of Reverse Osmosis.
May 27, 2009-RRO Roxboro NPDES Inspection
June 2, 2009-SOC review by PE, rationale for monitoring changes provided, discussed data results.
June 15, 2009-A to C for new gypsum pond (East Pond) approved.
June 19, 2009-RRO data review (Jan 08-March 09) met with Roxboro Plant/PE regarding SOC. PE request
for relaxed monitoring.

July 2, 2009-RRO requested Solids Management plans for treatment units
July 14 —July 16, 2009-RRO meeting and work with Central Office Enforcement Staff on Roxboro SOC.
Attachment A sampling negotiation.
July 22, 2009-RRO received Roxboro data analysis.
August 11, 2009-Sent SOC draft to Central Office Enforcement Branch.
August 13, 2009-Fish Tissue Sampling completed at Hyco Lake by ESS.
August 26, 2009-CG&L approved A to C modification raising the new East Pond by 4 feet -groundwater
table/boring data.
September 1, 2009-RRO participated in EPA Roxboro Ash Impoundment Inspection.
September 9, 2009-Central Office Enforcement mailed "first' SOC draft to PE Roxboro Plant.
October 8, 2009-PE Rox Data Review
October 12, 2009-Certification on Flush Pond received.
October 14, 2009-PE Roxboro SOC data and meeting/Roxboro.
October 15, 2009-RRO met with DWQ SW and DAQ to discuss air quality data regarding power plants.
October 30, 2009- RRO and AQP meeting to discuss collaboration with Duke University on Surface water
and groundwater
November 6, 2009-RRO sent letter of change regarding relaxing monitoring frequency.
November 9, 2009-RRO submits "second "SOC draft to Central Office for review.
November 16, 2009-RRO report to EPA regarding Ash Impoundment Inspection at Roxboro and toe drain
discharge sampling results reviewed. Toes drain discharge not included in permit application by PE.
November 17, 2009-ESS review of Progress Energy self report 2008 and 2009 lake monitoring data.
Letter documenting concerns.
December 7, 2009- PE reports 108,000 gallon Pyrite spill to the Ash Pond. Incident 200903009.
December 22, 2009-Central Office Enforcement E-mail concerning review of "second"SOC draft.
January 2010- EPA posts Ash Impoundment Inspection results for Roxboro Plant.
January 11, 2010-Confirmed construction on New east Settling Pond began October 9, 2009.
January 15, 2010-ESS Biological Study plan for Roxboro Plant reviewed and RRO provided comments
back to ESS.

February 2, 2010-Central Office Enforcement Branch mailed out the "second"draft special order by
Consent to PE Roxboro Plant. Delivery notice dated February 5, 2010. No reply within the 15 day return
period.
February 15, 2010-Responded to compliant in Person County on Bowes Mining Site.
March 18 and March 25 2010-Met with Connie and Nikki in Classifcations Unit to discuss Roxboro data
and water quality standards.
April 19, 2010-Met with Roy Byrd and Ellen Stafford on Roxboro Lab results.
May 19, 2010-Held meeting at Archdale to discuss Roxboro Plant events and results/SOC/treatment unit
efficiency and residual findings. Invited upper management, and all sections, permitting, ess,
classifications, AQP, and SWP regions.
June 2010-met with CG&L and Permitting to discuss solids residuals management and permit.
August 5, 2010- PE reported 48 hour notice on start-up of East Pond.
August 2010-PE reported start-up of FGD Influent /East Pond Effluent to Bioreactor.
September 2, 2010-E-mailed PE on the use of SOC language in labeling data from November 2009
monitoring letter.
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do
United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Ins ection ReDort
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 i N� 2 ICI 31 NC0003425 Ill 121 11/02/21 117 16I B 19I SI 20I I
lJ l.� U U
Remarks
2111111111111111111111111111111111111111111111111°
Inspection Work Days Facility Se8-Monitonng Evaluation Rating Bit QA —Reserved-----------------
67I I69 70u 711 I 72UN 731LI1J 174 75I I I I 1 I I I80
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry TimelDate
Permit Effective Date
POTW name and NPDES permit Number)
09:00 AM 11/02/21
07/05/01
Roxboro Steam Electric Power Plant
Exit Time/Date
Permit Expiration Date
Person County Rd 1377
Roxboro NC 27573
03:00 PH 11/02/21
12/03/31
Name(s) of Onsite Representative(s)rTities(s)/Phone and Fax Number(s)
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Harry K Sideris,1700 Dunnaway Rd Semora NC 27343//336-597-1174/ No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Other
Section D: Summary of Finding/Comments Attach additional sheets of narrative and checklists as necessary)
(See attachment Summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Vicki Webb RRO WQ/// / 2 > k.� L G //
tom ascenzo RHO WQ//919-791-4200/
natu of Manag ment Q A vl er .Agency/04,oallphone, and FaxNumbersDate ,
j
EPA Form 3/0-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

ft
e
Permit: NC0003425 Owner • Facility: Roxboro Steam Electric Power Plant
Inspection Date: 02/21/2011 Inspection Type: Bioassay Compliance
Other
Comment: Tox test done on Feb 2, 2011. Facility passed
Yes No NA NE
Page # 3

i
Permit: NC0003425 Owner - Facility: Roxboro Steam Electric Power Plant
Inspection Date: 02/21/2011 Inspection Type: Bioassay Compliance
Other
Comment: Tox test done on Feb 2, 2011. Facility passed
Yes No NA NE
Page # 3

% �F�/� 0
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
September 9, 2010
Mr. Steve Cahoon
Progress Energy Carolinas, Inc.
10600 Boston Road
Roxboro, North Carolina 27574
SUBJECT:
I_�Z�,vil�iwfl_r •�
Dee Freeman
Secretary
tl�SEP 1 3 2010 Dr
Authorization to Construct
A to C No. 038377A04
Progress Energy Carolinas, Inc.
Mayo Electric Generating Plant
Metclear Treatment Delivery System
Person County
A letter of request for an Authorization to Construct was received August 3, 2010, by the
Division of Water Quality (Division), and final plans and specifications for the subject project
have been reviewed and found to be satisfactory. Authorization is hereby granted for
modification of the 0.255 MGD Flue Gas Desulfurization (FGD) Wastewater Treatment System
(Internal Outfall 009), with discharge of treated wastewater into the Ash Pond (Outfall 002),
which discharges into the Ash Pond Discharge Canal, which discharges into the Mayo Reservoir
in the Roanoke River Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
Metclear chemical storage tanks (dual 270 gallon totes) with feed pump and delivery
system into the existing 4-inch FGD influent force main, which feeds into the existing 18
MG Settling Pond (prior to the FGD Bioreactor WWTP and Internal Outfall 009), in
conformity with the project plans, specifications, and other supporting data subsequently
filed and approved by the Department of Environment and Natural Resources.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NCO038377 issued October 14, 2009, and shall be subject to revocation
unless the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0038377.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] \ FAX: 9IM07-6492 \ Customer Service: 1-877-623.6748
Internet: w .nmaterqualily.org
An Equal Opportunity \ A@nnative Action Employer
None Carolina
Naturally

Mr. Steve Cahoon
September 9, 2010
Page 2
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the Division.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by the Division, such as;the construction of additional or replacement wastewater
treatment or disposal facilities.
— The Raleigh Regional Office, telephone number [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Construction Grants & Loans,
DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North

Mr. Steve Cahoon
September 9, 2010
Page 2
The sludge -generated- frorni hese treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the Division.
q 4
Y
In the event that the facfail to perform satisfactorily, including the creation of
nuisance conditions, the Permi�t'ee'all take immediate corrective action, including those as may
be required by the Division, such as Ithe construction of additional or replacement wastewater
treatment or disposal facilities.
F
`Wi Raleigh Regional Office, telephone number [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Construction Grants & Loans,
DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-1633.
Upon classification of the facility by the Certification Commission, the Pemuttee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class 11, III and W facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North

Mr. Steve Cahoon
September 9, 2010
Page 3
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Seth Robertson, P.E. at telephone
number [phone].
Sincerely,
Coleen H. Sullins
kp:sr
cc: Leigh Anne Casavant, P.E., Progress Energy, 7001 Pinecrest Road., Raleigh, NC 27612
Person County Health Department
DWQ Raleigh Regional Office, Surface Water Protection
DWQ, Technical Assistance and Certification Unit
DWQ, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
ATC File # 038377A04

Progress Energy Carolinas, Inc.
Mayo Electric Generating Plant
Metclear Treatment Delivery System
A To C No. 038377A04
Issued September 9, 2010
Engineer's Certification
I, , as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time)
the modification of the FGD W WTP, located at the Mayo Electric Generating Plant off US
Highway 501 northeast of Roxboro in Person County, hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the following construction:
Metclear chemical storage tanks (dual 270 gallon totes) with feed pump and
delivery system into the existing 4-inch FGD influent force main, which feeds
into the existing 18 MG Settling Pond (prior to the FGD Bioreactor WWTP and
Internal Outfall 009), in conformity with the project plans, specifications, and
other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature Registration No.
Date
Send to: Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633

�r
NCDENR
North Carolina Department of Environment and
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
September 9, 2010
5080
Mr. Steven Conner
Progress Energy Carolinas - Roxboro Steam Electric Plant
1700 Dunnaway Road
Semora, NC 27343
0
Natural Resources
Dee Freeman
Secretary
Subject: North Carolina Wastewater/Groundwater Laboratory Certification (NC WW/GW LC)
Maintenance Inspection
Dear Mr. Conner:
Enclosed is a report for the inspection performed on August 24, 2010 by Mr. Jeff Adams. No findings
are cited in this report, a response is not required. We appreciate the fine job you and your staff are
doing. As a certification requirement, your laboratory must continue to carry out the requirements set
forth in 15A NCAC 2H .0800.
Copies of the checklists completed during the inspection may be requested from this office. Thank you
for your cooperation during the inspection. If you wish to obtain an electronic copy of this report by
email or if you have questions or need additional information, please contact us at 919-733-3908.
ncerely,
Dana Satterwhite \
Certification Unit Supervisor
Laboratory Section
Enclosure
cc: Jeff Adams
Raleigh Regional Office
DENR DWQ Laboratory Section NC Wastewater/Groundwater Laboratory Certification Branch
1623 Mail Service Center, Raleigh, North Carolina 27699-1623
Location: 4405 Reedy Creek Road. Raleigh, North Carolina 27607-6445
Phone: [phone] FAX: [phone]
Internet: wvvw.dwglab.org
L� C E Q U E
SEP 1 5 20n
NC DENR
NorthCarofina
Naturally
An Equal opportunity l Afirmahve Action Employer Customer Service: 1-877-623-6748 www.ncwaterqualitycrg

0
0
LABORATORY NAME:
NPDES PERMIT #:
ADDRESS:
CERTIFICATE #:
DATE OF INSPECTION:
TYPE OF INSPECTION:
AUDITOR(S):
LOCAL PERSON(S) CONTACTED:
I. INTRODUCTION:
On -Site Inspection Report
Progress Energy Carolinas — Roxboro Steam Electric Plant
NC0003425
1700 Dunnaway Road
Semora, NC 27343
M
August 24, 2010
Field Maintenance
Jeffrey R. Adams
Steven Connor and Dana Newcomb
This laboratory was inspected to verify its compliance with the requirements of 15A NCAC 2H .0800 for
the analysis of environmental samples.
GENERAL COMMENTS:
The laboratory was neat and equipment was well maintained. The findings noted during the audit were
corrected prior to completion of the inspection report.
The laboratory was given a packet containing the Technical Assistance documents and Quality Control
requirements for all field parameters during the inspection.
FINDINGS, REQUIREMENTS, COMMENTS AND RECOMMENDATIONS:
Documentation
Comment: The laboratory needs to increase the documentation of purchased materials and reagents,
as well as, documentation of standards and reagents prepared in the laboratory. All chemicals,
reagents, standards and consumables used by the laboratory must have the following information
documented: Date Received, Date Opened (in use), Vendor, Lot Number, and Expiration Date. A
system (e.g., traceable identifiers) must be in place that links standard/reagent preparation information
to analytical batches in which the solutions are used. Documentation of solution preparation must
include the analyst's initials, date of preparation, the volume or weight of standard(s) used, the solvent
and final volume of the solution. This information, as well as the vendor and/or manufacturer, lot
number, and expiration date must be retained for chemicals, reagents, standards and consumables
used, for a period of five years. Consumable materials such as pH buffers, lots of pre -made standards
are included in this requirement. Ref: Quality Assurance Policies for Field Laboratories. The laboratory
has submitted a copy of its traceability log since the inspection and it is acceptable. No response is
required for this finding.
Recommendation: It is recommended that the laboratory use the attached laboratory benchsheet
which includes spaces to record the traceability information. An example benchsheet was left by the
inspector during the audit; however, that example did not include spaces to record traceability

0
On -Site Inspection Report
LABORATORY NAME: Progress Energy Carolinas — Roxboro Steam Electric Plant
NPDES PERMIT #: NC0003425
ADDRESS: 1700 Dunnaway Road
Semora, NC 27343
CERTIFICATE #: 5080
DATE OF INSPECTION: August 24, 2010
TYPE OF INSPECTION: Field Maintenance
AUDITOR(S): Jeffrey R. Adams
LOCAL PERSON(S) CONTACTED: Steven Connor and Dana Newcomb
This laboratory was inspected to verify its compliance with the requirements of 15A NCAC 2H .0800 for
the analysis of environmental samples.
GENERAL COMMENTS:
The laboratory was neat and equipment was well maintained. The findings noted during the audit were
corrected prior to completion of the inspection report.
The laboratory was given a packet containing the Technical Assistance documents and Quality Control
requirements for all field parameters during the inspection.
III. FINDINGS, REQUIREMENTS, COMMENTS AND RECOMMENDATIONS:
Documentation
Comment: The laboratory needs to increase the documentation of purchased materials and reagents,
as well as, documentation of standards and reagents prepared in the laboratory. All chemicals,
reagents, standards and consumables used by the laboratory must have the following information
documented: Date Received, Date Opened (in use), Vendor, Lot Number, and Expiration Date. A
system (e.g., traceable identifiers) must be in place that links standard/reagent preparation information
to analytical batches in which the solutions are used. Documentation of solution preparation must
include the analyst's initials, date of preparation, the volume or weight of standard(s) used, the solvent
and final volume of the solution. This information, as well as the vendor and/or manufacturer, lot
number, andllexpiration date must be retained for chemicals, reagents, standards and consumables
used, for a period of five years! Consumable materials such as pH buffers, lots of pre -made standards
are included in this requirement. Ref: Quality Assurance Policies for Field Laboratories. The laboratory
has submitted a copy of its traceability log since the inspection and it is acceptable. No response is
required for this finding.
Recommendation: It is recommended that the laboratory use the attached laboratory benchsheet
which includes spaces to record the traceability information. An example benchsheet was left by the
inspector during the audit; however, that example did not include spaces to record traceability

IV
•
Page 2
#5080 Progress Energy Carolinas - Roxboro Steam Electric Plant
information for chemicals, reagents, standards and consumables. Please replace the inspection
packet benchsheet with the newer attached version.
pH - Standard Methods, 18'" Edition, 4500 H+ B
Comment: The laboratory was checking the temperature sensor annually against a National Institute of
Standards and Technology (NIST) certified or NIST traceable thermometer but was not posting corrections
on the meter. The Technical Assistance for Field Analysis of pH states: The temperature sensor in the
meter must be checked every 12 months against an NIST certified or NIST traceable thermometer and the
process documented even if the instrument is not used for reporting temperature results. The temperature
correction (even if it is zero) must be posted on the meter as well as in hard copy format (to be retained for 5
ears . The laboratory has submitted documentation and a photograph of the instrument showing that the
corrections are now being posted on the meter. No response is required for this finding.
PAPER TRAIL INVESTIGATION:
The paper trail consisted of comparing laboratory benchsheets
Monitoring Reports (DMRs) submitted to the North Carolina
reviewed for March, May and July, 2010. No transcription errors
be doing a good job of accurately transcribing data.
V. CONCLUSIONS:
and contract lab reports to Discharge
Division of Water Quality. Data were
were detected. The facility appears to
All findings noted during the inspection were adequately addressed prior to the completion of this
report. The inspector would like to thank the staff for its assistance during the inspection and data review
process. No response is required.
Report prepared by: Jeffrey R. Adams
Report reviewed by: Todd Crawford
Date: September 3, 2010
Date: September 7, 2010

Date: Analyst_:
Certification #
Facility Name:
Permit #:
pH Analysis
Reference Method: (include edition e.a.. SM 18t")
Cal. Time
Calibration Buffer
4.0
Calibration Buffer
10.0
•Check Buffer
7.0
Comments
*pH buffer checks are to be within ± 0.1 pH units of the standards true value
4 buffer Lot#/identifier: 7 buffer Lot#/identifier: 10 buffer Lot#/identifier:
Facility/Sample
location
Time
Sampled*
Time
Analyzed*
Temp
(°C) ■
pH
Result
►EBufferCheck
value
Comment
♦If sample is measured in directly in the stream only time analyzed would be recorded.
►Indicates a recommended drift check. (Use Buffer 7.0) Should be within ± 0.1 units of the buffer's true value)
■ Document the temperature of the sample at the time of analysis. Note: This temperature is not to be used for
reporting on the monthly monitoring report.
Calibration drift check is recommended when performing analysis at multiple sampling locations,
'All pH results in pH units (i.e., s.u.).
Annual Temperature Sensor Check Date:
Temperature
Reference Method: (include edition)
Facility/Sample
Location
Temperature
°C
'Time Analyzed[Fime
Sampled
Comments
"Analysis time and sampling time the same. (Ideally the sample should be analyzed in -situ).
Annual Verification Date
Field Personnel Notes
12/29/2009

Romanski, Autumn
From:
Romanski, Autumn
Sent:
Thursday, September 02, 2010 10:36 AM
To:
'Langley, Shannon'
Cc:
Smith, Danny; 'Newcomb, Dana'
Subject:
Progress Energy Electronic Data Submittal
Attachments:
FGD SOC Results 070610.pdf, image001.gif
Shannon,
I noticed in the recent submittal of monitoring data for the Roxboro Steam Electric Plant that the wording
"SOC Results" is being used for labeling the electronically submitted documents (see attached submittal
example from PE ). Since we do not have an active SOC, and the sampling as stated in the cover letter of the
raw sampling results is "as directed by November 6, 2009 letter", a correction to the labeling would ensure
that there is no misunderstanding by anyone about Progress Energy currently holding an active SOC with
DWQ.
Please contact myself or Danny Smith if you have questions.
Thank you for your time and consideration.
Sincerely,
Autumn
NLIItul A &MP SI G
Environmental Senior Specialist
Division of Water Quality
Surface Water Protection
3800 Barrett Drive
Raleigh, NC 27609
Website: htto://Portal.ncdenr.org/web/wo/ws/su
Office: 919-791-4247
Please note my e-mail address has changed:
E-Mail: [e-mail]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to
third parties.

©kA •
w '
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Land Resources
Land Quality Section
James D. Simons, PG, PE Beverly Eaves Perdue, Governor
Director and State Geologist Dee Freeman, Secretary
July 12, 2010
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. Jon A. Winterhalter, PE JUL
Parsons E&C
2675 Morgantown Road
Reading, PA 19607 - --
RE: Roxboro West Settling Pond Dam (PERSO-040-H)
Roxboro East Settling Pond Dam (PERSO-041-H)
Roxboro Flush Pond Dam (PERSO-042-H)
Person County
Dear Mr. Winterhalter:
A review has been made of the plans specifications and design data dated June 8, 2010, received
by this office on June 10, 2010 for repair and construction of the referenced dams. This
submittal is in response to a request dated May 10, 2010 for addition information related to the
original submittals dated February 8, 2010 and April 19, 2010 received by this office on February
10, 2010 and April 30, 2010. These plans address three dams: (L) the Roxboro West Settling
Pond Dam which is of high hazard classification, (2.) the Roxboro East Settling Pond Dam
which is of high hazard classification, and (3.) the Roxboro Flush Pond Dam which is of high
hazard classification. Prior to issuance of an approval to construct and/or repair, additional
information or revision is requested. Format form the May 10, 2010 letter is used for the
following items:
General: These dams became subject to jurisdiction of the North Carolina Dam
Safety Law of 1967 (Law) on January 1, 2010. Please provide a narrative
describing what was in place on January 1, 2010 and what work remained as of this
date. It appears that the West Settling Pond Dam and the Flush Pond Dam were
essentially in place as of January 1, 2010 and are now in need of repair as
evidenced by excessive seepage and sink holes. The East Settling Pond Dam is
currently under construction to serve in place of the West Settling Pond Dam until
1612 Mail Servioe Center, Raleigh, North Carolina 27699-1612 • Telephone [phone] / FAX: [phone]
512 North Salisbury Street, Raleigh, North Carolina, 27604 • Intemet:http://www.dlr.enr.state.nc.us/pagesAandqualitysection.htmi

Mr. Jon A. Winterhalter, P •
Roxboro West Settling Pona liam (PERSO-040-H)
Roxboro East Settling Pond Dam (PERSO-041-H)
Roxboro Flush Pond Dam (PERSO-042-H)
July 12, 2010
Page 2 of 5
it can be repaired, after which it will remain in service as an auxiliary facility to the
West Settling Pond Dam. If this is the case, you are seeking approval to repair the
West Settling Pond Dam and the Flush Pond Dam and approval to construct the
East Settling Pond Dam in accordance with the Law.
RESOLVED: No further response required.
It appears that the essence of repair is to remove internal riprap armoring in the
West Settling Pond and the Flush Pond and replace the armoring with an
impervious synthetic liner. For clarification, please provide a narrative detailing
problems encountered after initial construction of the West Settling Pond Dam and
the Flush Pond Dam, and the general concept of proposed repairs.
RESOLVED: No further response required.
General: Please provide construction details for a bottom drain assembly (see
North Carolina Administrative Code, Title 15A, Subchapter 2K, Section .0206
(15A NCAC 2K .0206)). This is available at our website. The skimmer
assemblies may be a source for this function; however, an outfall must be defined.
Please provide a hydraulic profile (schematic with elevations) of the ponds and
treatment plant to illustrate flow through the system.
UNRESOLVED: Please provide construction details for means of complying
with 15A NCAC 2K .0206 (a).
4. Calculations: Please provide hydrologic and hydraulic analysis in accordance with
spillway design storm requirements described in 15A NCAC 2K, Section .0205.
Please obtain rainfall data for this site from
http://hdsc.nws.noaa.gov/hdsc/pfds/orb/nc pfds.html.
PARTIALLY RESOLVED: Please note page 73, Item 6.1 of HMR 52.
Minimum duration of design storms must be 6 hours to reflect effects of
tropical storm activity versus isolated non -tropical storm activity which is
likely to be of lesser duration. In North Carolina, this is standard procedure
employed for dams with a time of concentration of less than six hours. It is
suggested that the dams be flood routed in series with beginning elevation
equal to the emergency spillway crest for conservatism. Inflow hydrographs
can be developed with drainage area of the impoundments equal to reservoir
area, CN would be 98 and time of concentration 5 minutes. Time rate of flow
through the emergency spillway weirs can be accounted for in this manner. It

Mr. Jon A. Winterhalt_, 0
Roxboro West Settling Pon%am (PERSO-040-H)
Roxboro East Settling Pond Dam (PERSO-041-H)
Roxboro Flush Pond Dam (PERSO-042-H)
July 12, 2010
Page 2 of 5
it can be repaired, after which it will remain in service as an auxiliary facility to the
West Settling Pond Dam. If this is the case, you are seeking approval to repair the
West Settling Pond Dam and the Flush Pond Dam and approval to construct the
East Settling Pond Dam in accordance with the Law.
RESOLVED: No further response required.
2. It appears that the essence of repair is to remove internal riprap armoring in the
West Settling Pond and the Flush Pond and replace the armoring with an
impervious synthetic liner. For clarification, please provide a narrative detailing
problems encountered after initial construction of the West Settling Pond Dam and
the Flush Pond Dam, and the general concept of proposed repairs.
RESOLVED: No further response required.
3. General: Please provide construction details for a bottom drain assembly (see
North Carolina Administrative Code, Title 15A, Subchapter 2K, Section .0206
(15A NCAC 2K .0206)). This is available at our website. The skimmer
assemblies may be a source for this function; however, an outfall must be defined.
Please provide a hydraulic profile (schematic with elevations) of the ponds and
treatment plant to illustrate flow through the system.
UNRESOLVED: Please provide construction details for means of complying
with 15A NCAC 2K .0206 (a).
4. Calculations: Please provide hydrologic and hydraulic analysis in accordance with
spillway design storm requirements described in 15A NCAC 2K, Section .0205.
Please obtain rainfall data for this site from
hqp://hdsc.nws.noaa.gov/hdsc/pfds/orb/nc pfds.html.
PARTIALLY RESOLVED: Please note page 73, Item 6.1 of HMR 52.
Minimum duration of design storms must be 6 hours to reflect effects of
tropical storm activity versus isolated non -tropical storm activity which is
likely to be of lesser duration. In North Carolina, this is standard procedure
employed for dams with a time of concentration of less than six hours. It is
suggested that the dams be flood routed in series with beginning elevation
equal to the emergency spillway crest for conservatism. Inflow hydrographs
can be developed with drainage area of the impoundments equal to reservoir
area, CN would be 98 and time of concentration 5 minutes. Time rate of flow
through the emergency spillway weirs can be accounted for in this manner. It

Mr. Jon A. Winterhalte •
Roxboro West Settling Pona uam (PERSO-040-H)
Roxboro East Settling Pond Dam (PERSO-041-H)
Roxboro Flush Pond Dam (PERSO-042-H)
July 12, 2010
Page 3 of 5
is understood that the Flush Pond flowing into the West Settling Pond become
one reservoir at elevation 503.5, discharging to the East Settling Pond which is
the discharge point of the three pond system. Skimmer dewatering systems
discharging through the Bioreactor Plant to the Plant discharge pipe are
noted in the West Settling Pond and the East Settling Pond. How is the
normal operating level controlled in the Flush Pond and how is it dewatered?
Calculations: Please reference page 16, Section 2.6: Anti -seep collars have
experienced failures as documented by the USDA-NRCS. It is recommended that
a "filter diaphragm" be provided for at least the new conduit in the East Settling
Pond Dam. Please reference the USDA-NRCS National Engineering Handbook,
Part 628 "Dams" Chapter 45 "Filter Diaphragms". This can be downloaded from
the NRCS (Natural Resource Conservation Service) website. This may be
particularly appropriate for pipe installed by directional drilling if an outfall for the
collection system is feasible.
RESOLVED: Given the date of jurisdiction and the extent of construction at
date of jurisdiction, we will not require this device at this time. Please be
advised in the future that this device is generally required for conduits in
earthen dams. It is a very effective way to prevent piping while discharging
seepage flow that may occur along the outside of a conduit through the dam.
6. Drawing ROXO-O-DW-526-717-100: Please provide piezometers on the west and
north embankments of the West Settling Pond Dam.
RESOLVED: No further response required.
7. Drawing ROXO-O-DW-526-717-101: Please provide specifications for the
grouting program depicted.
RESOLVED: No further response required.
8. Drawing ROXO-O-DW-526-720-100: Refer to Note 4. Please note that all
construction on a jurisdictional dam must be performed under supervision of a
professional engineer registered in the state of North Carolina (see NCGS 143-
215.29 (a)) and the approval will state this. Please revise this note to reflect this.
RESOLVED: No further response required.

Mr. Jon A. Winterhalter, P] •
Roxboro West Settling Pona uam (PERSO-040-H)
Roxboro East Settling Pond Dam (PERSO-041-H)
Roxboro Flush Pond Dam (PERSO-042-H)
July 12, 2010
Page 4 of 5
9. Drawing ROXO-O-DW-526-720-101: Please label pipe type and provide
specifications for pipe, pipe joints, valves and siphon vent assembly.
PARTIALLY RESOLVED: Please provide ASTM standards for the HDPE
pipe used, and description and ASTM standards for pipe joints. Note in the
future that pipe installation by HDD (horizontal directional drilling) is not
allowed in dam construction as adequate compaction directly adjacent to the
outside wall of the pipe cannot be achieved with any certainty. This can result
in a seepage flow path along the outside wall of the pipe.
10. Drawing ROXO-O-DW-526-720-101: Please provide a profile along the discharge
pipe assembly of the West Settling Pond and Flush Pond similar to Section 3-3.
Please provide stationing and elevation grid for each of three profiles.
RESOLVED: No further response required.
11. Drawing ROXO-O-DW-526-720-101 and 103: Please provide a plan view of the
toe drain layout and depict outfall routing.
RESOLVED: No further response required.
12. Specifications, Section 2200 Earthwork, Section 2.1 MATERIALS: Please specify
suitable and unsuitable soil materials as defined by the Unified Soil Classification
System (USCS) for "random fill". Also provide material specifications for "clay
liner material' as referenced on Drawing ROXO-O-DW-526-720-100 with USCS
description.
RESOLVED: No further response required.
13. EAP: As a dam owner, you may incur liability should your dam have a problem or
fail, if such an event results in loss of life, property damage, or environmental
damage downstream. It is therefore requested that you prepare an Emergency
Action Plan (EAP) for this dam. The EAP establishes procedures to be followed in
events that could adversely impact the dam such as extreme precipitation, seismic
activity, excessive seepage, slides, sinkholes, and other natural hazards, and for
warning the public downstream in the event of an emergency at the dam. Guidance
for preparing an EAP can be found on the Internet at
http://www.dlr.enr.state.nc.us/pages/damsafetyprogram.html or by calling Dam
Safety Program staff at [phone].

Mr. Jon A. Winterhalte_, _ •
Roxboro West Settling Ponfam (PERSO-040-H)
Roxboro East Settling Pond Dam (PERSO-041-H)
Roxboro Flush Pond Dam (PERSO-042-H)
July 12, 2010
Page 4 of 5
9. Drawing ROXO-O-DW-526-720-101: Please label pipe type and provide
specifications for pipe, pipe joints, valves and siphon vent assembly.
PARTIALLY RESOLVED: Please provide ASTM standards for the HDPE
pipe used, and description and ASTM standards for pipe joints. Note in the
future that pipe installation by HDD (horizontal directional drilling) is not
allowed in dam construction as adequate compaction directly adjacent to the
outside wall of the pipe cannot be achieved with any certainty. This can result
in a seepage flow path along the outside wall of the pipe.
10. Drawing ROXO-O-DW-526-720-101: Please provide a profile along the discharge
pipe assembly of the West Settling Pond and Flush Pond similar to Section 3-3.
Please provide stationing and elevation grid for each of three profiles.
RESOLVED: No further response required.
11. Drawing ROXO-O-DW-526-720-101 and 103: Please provide a plan view of the
toe drain layout and depict outfall routing.
RESOLVED: No further response required.
12, Specifications, Section 2200 Earthwork, Section 2.1 MATERIALS: Please specify
suitable and unsuitable soil materials as defined by the Unified Soil Classification
System (USCS) for `random fill". Also provide material specifications for "clay
liner material' as referenced on Drawing ROXO-O-DW-526-720-100 with USCS
description.
RESOLVED: No further response required.
13. EAP: As a dam owner, you may incur liability should your dam have a problem or
fail, if such an event results in loss of life, property damage, or environmental
damage downstream. It is therefore requested that you prepare an Emergency
Action Plan (EAP) for this dam. The EAP establishes procedures to be followed in
events that could adversely impact the dam such as extreme precipitation, seismic
activity, excessive seepage, slides, sinkholes, and other natural hazards, and for
warning the public downstream in the event of an emergency at the dam. Guidance
for preparing an EAP can be found on the Internet at
http://www.dlr.enr.state.nc.us/pages/damsafetyprogram.html or by calling Dam
Safety Program staff at [phone].

Mr. Jon A. Winterhalte .
Roxboro West Settling Pona uam (PERSO-040-H)
Roxboro East Settling Pond Dam (PERSO-041-H)
Roxboro Flush Pond Dam (PERSO-042-H)
July 12, 2010
Page 5 of 5
UNRESOLVED: On June 15, 2010, Ms. Idol of our office forwarded to Mr.
Fred Holt an EAP template developed by the Natural Resource Conservation
Service, revised for North Carolina. Please provide all documents required in
Appendix B of this template.
14. O&M Plan: Please provide a maintenance and operation plan for the three dam
facilities.
RESOLVED: No further response required.
15. Please determine the appropriate jurisdiction for sediment and erosion control plan
approval and other necessary environmental approvals. Secure independent
approval prior to construction.
RESOLVED: No further response required.
It would greatly aid further application review if a response to each of the above comments were
made in a cover letter submitted with two sets of the revised plans, specifications and design
data.
Please note that the jurisdictional time sequence involving these dams has created a situation
abnormal to standard procedure under the Dam Safety Law of 1967. As a result, decisions made
in this approval process may differ from those made in the future on other dams under similar
circumstances.
Please contact this office should you have any questions concerning the above items.
Sincerely,,
Steven M. McEvo PE
State Dam Safety Eng er
Land Quality Section
cc: Mr. Fred Holt, Progress Energy
Mr. John Holley, PE, Raleigh Regional Engineer
Surface Water Protection Regional Supervisor
File name: PERSO-040-042_20100712_revreg2_Roxboro East & West SP & Flush Pond Dams.doc

Mr. Harry Sideris, Plant Manager
June 29, 2010
Page 2
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Raleigh Regional Office, telephone number [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Construction Grants & Loans,
DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.

JUL - 6
NCDENR
North Carolina Department of Environment and
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
June 29, 2010
Mr. Harry Sideris, Plant Manager
Progress Energy Carolinas, Inc., Roxboro Steam Plant
1700 Dunnaway Road
Semora, North Carolina 27343
Dear Mr. Sideras:
Natural Resources
Dee Freeman
Secretary
SUBJECT: Authorization to Construct
A to C No. 003425A08
Progress Energy Carolinas, Inc.
Roxboro Steam Plant
Sodium Hydroxide Treatment Delivery System for
Coal Pile Runoff Pond
Person County
A letter of request for Authorization to Construct was received June 2, 2010, by the
Division, and final plans and specifications for the subject project have been reviewed and found
to be satisfactory. Authorization is hereby granted for the construction of modifications to the
existing Coal Pile Runoff Pond, with discharge of treated wastewater (via NPDES Permit
NC0003425 Outfall No. 6) into Hyco Lake in the Roanoke River Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
A 5,000 gallon Sodium Hydroxide chemical storage tank with feed pump and delivery
system into the coal pile runoff drainage ditch, which feeds into the Coal Pipe Runoff
Pond (prior to Outfall 006), in conformity with the project plans, specifications, and
other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NC0003425 issued April 9, 2007, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0003425.
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the Division.
1617 Mail Service Center, Ralegh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: 91 M07-63001 FAX: 9IM07-64921 Customer Service:1-877-623-6748
Internet www.ncwaterquality.org
An Equal Opportunity, \ AlI m ative Aclion Employer
NorthiCarolina
Natara!!if

Mr. Harry Sideris, Plant Manager
June 29, 2010
Page 2
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Raleigh Regional Office, telephone number [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Construction Grants & Loans,
DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, IH and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.

Mr. Harry Sideris, Plant Manager
June 29, 2010
Page 3
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Seth Robertson, P.E. at telephone
number [phone].
Sincerely,
Coleen H. Sullins
kp:sr
cc: Leigh Anne Casavant, P.E. — Progress Energy, 7001 Pinecrest Road, Raleigh, NC 27612
Person County Health Department
DWQ Raleigh Regional Office, Surface Water Protection
DWQ, Technical Assistance and Certification Unit
DWQ, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
ATC File # 003425A08

Progress Energy Carolinas, Inc.
Roxboro Steam Station
A To C No. 003425A08
Issued June 29, 2010
Engineer's Certification
I, , as a duly registered Professional Engineer in the
State of North Carolina, having been authorized to observe (periodically/weekly/full time) the
construction of the modifications and improvements to the Roxboro Steam Plant FGD
Wastewater System, located on NCSR 1377 in Person County for Progress Energy, hereby state
that, to the best of my abilities, due care and diligence was used in the observation of the
following construction:
A 5,000 gallon Sodium Hydroxide chemical storage tank with feed pump and delivery
system into the coal pile runoff drainage ditch, which feeds into the Coal Pipe Runoff
Pond (prior to Outfall 006), in conformity with the project plans, specifications, and
other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature
Date
Registration
Send to: Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633

b' A
DE I�R
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Colleen H. Sullins
Governor Director
June 29,2010
Harry Sideris, Plant Manager
Progress Energy Carolinas, file, Roxboro Steam Plant
1700 Dunnaway Road
Samora, North Carolina 27343
Dear Mr. Sideris:
Dee Freeman
Secretary
Subject: Request to Modify NPDES Permit NCO003425
Progress Energy Carolinas, Inc, Roxboro Steam Plant
700 Dunaway Road
Samora, North Carolina 27343
Person County
The Division of Water Quality (the Division) has reviewed your written request, received April 12, 2010, to
modify the subject NPDES Permit. We find no need to modify your permit at this time.
You have provided a list of chemical products - please be advised that you must acquire further approval from
the Division's Aquatic Toxicity Unit for use of these products. The Division understands that you intend to
apply these chemicals to aid settling, and to moderate pH in both the ash pond and coal -pile runoff pond. We
further understand that on April 14 of this year you received an Authorization to Construct (ATC) permit from
Construction Grants and Loans to install the necessary chemical -feed systems.
Your permit requires you to apply Acute Whole Effluent Toxicity (WET) testing 1/Quarter at your final
Olutfall 003 to Hyde Reservoir (classified WS-V, B). The Division therefore feels no need to modify your
permit provided that future WET testing remains compliant with the permit. If you have questions, please e-
mail me fioe.corporon a('!ncdenr.govl or call me at [phone].
cc:
Danny Smith, (RRO/SWPS) [hardca
Central Files [hardcopy]
NPDES Program Files [hardcopy]
Daniel M. Blaisdell, Construction Grants and Loans [e-copy];
Susan Meadows (TOX) [e-copy]
Michael Douglass (RRO / DEH) [e-copy];
James Pugh, TACU [e-copy]
Marshall Hyatt, EPA Region 4 [e-copy]
Shannon Langley [ecopy; Shannon.langley(i)o>mmail.com]
1617 Mail Service Center, Ralegh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Ralegh, North Carolina 27604
Phone: 91"07.63001 FAX: [phone] Customer Service: 1$77-623-6746
intemebw .ncwaterqualily.org
-2
Noi thCarolina
Xtura!!y
An Equal Opportunity 1 Affirmative Action Employer

Romanski, Autumn
From: Langley, Shannon [Shannon. [e-mail]]
Sent: Wednesday, June 16, 2010 11:51 AM
To: Pohlig, Ken
Cc: Howard, Robert, Holt, Fred; Romanski, Autumn
Subject: RE: Progress Energy, Roxboro Steam Plant, ATC # 003425A08 for Coal Pile Runoff Pond
Attachments: image001.gif; Position of Sodium Hydroxide injection2.pptx
Hi Ken,
Our responses to your questions are below. I've copied your questions and added the responses in RED.
Shannon
We do have a few questions on this small ATC proposal (which are similar to the questions we've asked before on
previous projects):
(1) Please provide a map of the localized area, showing the exact location of where the Sodium Hydroxide will be
injected in. We understand that the system will be located on a drainage ditch which leads to the Coal Pile
Runoff Pond. Response: A map is attached
(2) How many drainage ditches and/or pathways of drainage are there into the Pond... coming from the Coal Pile?
Are there numerous, or only one? Response: There is one drainage ditch into the pond from the coal pile.
Ditches around the perimeter of the coal pile merge prior to entering the coal pile runoff pond.
(3) Are there any other sources of runoff or inputs into this Pond other than the Coal Pile? Response: As detailed in
AtoC 003425A01, some runoff from the limestone pile is also tributary to this pond. Sumps from the limestone
and coal unloading areas are also directed to the coal pile runoff pond.
(4) Please provide an estimate of the Coal Pile Runoff Pond's Volume to the high water mark (dictated by the
overflow tower, if I remember correctly). Response: As detailed in the Engineers certification for AtoC
003425A01, the coal pile runoff pond has a live storage volume of 609,012 ft' and a sediment accumulation
storage volume of 199,287 ft'.
(5) Please provide an estimate of the amount of sludge already in the Pond. What is the depth of the sludge (if any)
already in the Pond? Response: There is minimal sediment accumulated in the pond currently. When the pond
was recently reconfigured as part of the FGD construction project, the pond was lowered and all sediments were
removed from the structure. At the same time, the design water level was increased by approximately 5 feet.
Recently, staff asked a contractor to excavate the "front area' of the pond to judge how much accumulated
sediments were present. A very small amount of sediment had accumulated at that time.
(6) Please provide a Sludge Management Plan for the Coal Pile Runoff Pond, which would include:
(a) Estimate of the amount of sludge in the Pond currently (Year 2010), Response: See item 5 above
(b) Estimate of the amount of sludge generated each year (or multiple years), and Response: This can be
highly variable and dependent on several factors. Relevant information is found in the design sediment
accumulation volume listed above. As sediments need to be removed, they will be handled as described
below. It is anticipated that it will be several years before any sediments will need to be removed.

(c) Plan for how the sludge will be removed, and where the sludge will be disposed of. Response: As needed,
bottom sediments can be removed from the pond using a long stick excavator. Any removed materials can
be disposed of in the onsite CCP landfill.
E. Shannon LangCey
Senior Environmental Specialist
Environmental Services Section - Carolinas
Progress Energy Carolinas, Inc.
[phone] (public)
8-770-2439 (voicenet)
`v Progress orgy
From: Langley, Shannon
Sent: Tuesday, June 15, 2010 1:27 PM
To: 'Pohlig, Ken'
Cc: 'Romanski, Autumn'
Subject: RE: Progress Energy, Roxboro Steam Plant, ATC # 003425A08 for Coal Pile Runoff Pond
Thanks for the note Ken. I will get the answers to your questions and reply shortly.
Shannon
E. Shannon LangCey
Senior Environmental Specialist
Environmental Services Section - Carolinas
Progress Energy Carolinas, Inc.
[phone] (public)
8-770-2439 (voicenet)
`2 Progress Energy
From: Pohlig, Ken [mailto:[e-mail]]
Sent: Monday, June 14, 2010 10:20 AM
To: Langley, Shannon
Cc: Romanski, Autumn
Subject: Progress Energy, Roxboro Steam Plant, ATC # 003425A08 for Coal Pile Runoff Pond
Shannon:
We do have a few questions on this small ATC proposal (which are similar to the questions we've asked before on
previous projects):
(7) Please provide a map of the localized area, showing the exact location of where the Sodium Hydroxide will be
injected in. We understand that the system will be located on a drainage ditch which leads to the Coal Pile
Runoff Pond.
(8) How many drainage ditches and/or pathways of drainage are there into the Pond... coming from the Coal Pile?
Are there numerous, or only one?

(9) Are there any other sources of runoff or inputs into this Pond other than the Coal Pile?
(10)Please provide an estimate of the Coal Pile Runoff Pond's Volume to the high water mark (dictated by the
overflow tower, if I remember correctly).
(11)Please provide an estimate of the amount of sludge already in the Pond. What is the depth of the sludge (if any)
already in the Pond?
(12)Please provide a Sludge Management Plan for the Coal Pile Runoff Pond, which would include:
(d) Estimate of the amount of sludge in the Pond currently (Year 2010),
(e) Estimate of the amount of sludge generated each year (or multiple years), and
(f) Plan for how the sludge will be removed, and where the sludge will be disposed of.
Let me know if you have any questions.
I've already drafted up your ATC, and so it should be ready to go after we get your responses.
Ken Pohlig, P.E.
Construction Grants & Loans Section
715-6221
From: Langley, Shannon[mailto:Shannon. [e-mail]]
Sent: Wednesday, June 02, 2010 12:32 PM
To: Pohlig, Ken
Subject: RE: ATC
Ken,
Attached is the AtoC package I mentioned earlier. Thanks for letting us submit by email. It is a pretty simple addition
but please let me know if you have any questions.
Shannon
E. Shannon LangCey
Senior Environmental Specialist
Environmental Services Section - Carolinas
Progress Energy Carolinas, Inc.
[phone] (public)
5-770-2439 (voicenet)
`v Progress Emrg
From: Pohlig, Ken [mailto:[e-mail]]
Sent: Wednesday, June 02, 2010 9:05 AM
To: Langley, Shannon
Subject: RE: ATC
This is fine!

Ken Pohlig
CG&L
From: Langley, Shannon[mailto:[e-mail]]
Sent: Wednesday, June 02, 2010 9:03 AM
To: Pohlig, Ken
Subject: ATC
Hi Ken,
Just an FYI.
We will have the third (and final) ATC application package ready for a simple chemical feed pump system at Roxboro
ready this week. You may recall issuing two AtoC's recently to Progress Energy plants for chemical feed systems. We
have one final project like this. We plan on installing a simple pump system and chemical tote (5000 gallon) to have the
capability to add Sodium Hydroxide to the runoff from our coal pile at the Roxboro plant. I would like to email you the
package if you don't object.
Shannon
E. Shannon.CangCey
Senior Environmental Specialist
Environmental Services Section - Carolinas
Progress Energy Carolinas, Inc.
[phone] (public)
8-770-2439 (voicenet)
`v ft9rm EmW

Roxboro Plant localized area showing point of Sodium Hydroxide injection
0
'1
4
0

Progress Energy
File #: 12520X
Mr. Ken Pohlig
NC Division of Water Quality
Construction Grants and Loans
1633 Mail Service Center
Raleigh, NC 27699-1633
Dear Mr. Pohlig:
R`�EIo
Ara 20
ems&
��
April 13, 2010
Subject: Engineers certification
Roxboro Steam Electric Plant
Authorization to Construct No. 003425A01
Person County �—
Attached is the final Engineer's Certification for the modifications to the limestone pile and
gypsum handling area authorized under ATC Number 003425A01. Certification of the other
activities authorized by ATC 003425A01 has been previously submitted. A copy of the previous
submittal is attached for your reference.
We appreciate your assistance. If you have any questions, please feel free to contact Shannon
Langley at [phone].
I certify, under penalty oflaw, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate
the information submitted. Based on my inquiry of the person orpersons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate, and complete. l am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations.
Svt�;iy
�
Harryderis,Plant Manager
Roxboro Steam Electric Plant
Attachment
cc: Billy Milam w/attachment
Teresa Williams w/attachment — PEB8
Shannon Langley w/attachment— PEB 4
Progress Energy Carolinas, Inc.
Roxboro Steam Plant
1700 DunnawaY Road
Semma, NC 27343

Mr. Cecil E. Rowland, Plant Manager
A to C No. 003425AOI
Issued October 20, 2004
Engineer's Certification
.TVA! If • U!/iVTE/'�Jf>'LT�ir',, as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodical ly/week I y!full time)
the construction of the modifications and improvements to the Coal Pile Runoff Pond at the
Roxboro Steam Electric Generating Plant located on NCSR 1377 near Roxboro in Person
County, hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the following construction:
A new train track embankment (completing the north train loop) along the northern side
of the Coal Pile Runoff Pond; new culverts and drainageways to collect runoff from the
material storage areas, to include the coal pile, limestone pile and gypsum handling area;
modifications to the coal pile runoff pond to include dewatering and removal of
accumulated sediment, raising the existing spillway riser by about 5 feet and coring a
new spillway orifice hole into riser; and grading, additional culverts and drainageways
inside the north loop and south loop to divert runoff associated with these areas away
from the coal pile runoff pond to existing stormwater discharges,
pursuant to the application received on August 3, 2004, and in conformity with the project plan,
specifications, and other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature m gistration No._ 037_
Date 3 •//�/O
Send to: Construction Grants & Loans - w' pFt'�/O;y
Attn: Ken Pohlig, P.E. a W DENR/DWQ SEAL SEAL
1633 Mail Service Center 'c— _
029037
?O
Raleigh, NC 27699-16332_

° 'O'l
!d 'Progress Energy
File: 1252OX
Mr, Ken Pohlig, P.E.
DENR/DWQ
Construction Grants & Loans
1633 Mail Service Center
Raleigh, NC 27699-1633
Subject: Roxboro Steam Electric Plant
Authorization to Construct No. 003425A01
Engineer's Certification
Dear Mr. Pohlig:
November 3, 2005
Attached is the Engineer's Certification for the modifications made to .the coal pile runoff pond
on the Roxboro Steam Electric Plant site. Construction has not, been completed for the
limestone pile and the gypsum handling. area. When construction of these two areas is
completed, an updated Engineer's Certification will be .submitted. As required in the ATC
approval letter, Ken Schuster of the Raleigh Regional Office of DWQ was. notified on
November 2, 2005. Please contact Louise England at'[phone] with any questions.
I certify, under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualifted personnel properly gather and evaluate
the information submitted. Based on my inquiry of the person or persons who manage the system, or those
persons directly responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting
false information, including the possibility of ftnes and imprisonmentfor knowing violations.
Sincerely,
Cecil E. Rowland
Plant Manager
Attachment
Progress Energy Carolinas, Inc.
Roxboro Steam Plant
1700 Dunnaway Road
Semora, NC 27343

Mr. Cecil E. Rowland, Plant Manager
A to C No. 003425AOI
Issued October 20, 2004
Engineer's Certification
1, TCy A, W1AoF11f1iU_7-E72 as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodicallyA*os )
the construction of the modifications and improvements to the Coal Pile Runoff Pond at the
Roxboro Steam Electric Generating Plant located on NCSR 1377 near Roxboro in Person
County, hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the following construction:
A new train track embankment (completing the north train loop) along the northern side
of the Coal Pile Runoff Pond; new culverts and drainageways to collect runoff from the
material storage areas, to include the coal pile, liifiestexe 134@ aad gypaw r§effidling afea,
modifications to the coal pile runoff pond to include dewatering and removal of
accumulated sediment, raising the existing spillway riser by about 5 feet and coring a
new spillway orifice hole into riser; and grading, additional culverts and drainageways
inside the north loop and south loop to divert runoff associated with these areas away
from the coal pile runoff pond to existing stormwater discharges,
pursuant to the application received on August 3, 2004, and in conformity with the project plan,
specifications, and other supporting data subsequently filed and approved by the Department of
Environment and Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature -7
me �� Registration No. QZ g O
Date AO—Zg —O 5
Send to: Construction Grants & Loans
a OAs
If
,A FEssip
Attn: Ken Pohlig, P.E. r 2fQQo 'k
DENR/DWQ ; SEAL
1633 Mail Service Center c- 029037
Raleigh, NC 27699-1633 -: 1�.. ,a

0
North Carolina
James D. Simons, PG, PE
Director and State Geologist
April 8, 2010
CERTIFIED MAIL
RETURN RECEIPT
AOA
NCDENR
Department of Environment and Natural Resources
Division of Land Resources
Land Quality Section
Certificate of Approval
Mr. Fred Holt
Progress Energy Carolinas, Inc.
Environmental, Health and Safety Services Section
PO Box 1551 PEB 4
Raleigh, NC 27602
Re: Roxboro Plant East Ash Pond Dam
Phases IV and V Landfill (Proposed)
Person County
State ID: PERSO-033-L
Dear Mr. Holt:
Beverly Eaves Perdue, Governor
Dee Freeman, Secretary
This is in response to your submission received on January 29, 2010 of plans,
specifications and design data for construction of Phases IV and V of a proposed landfill
at the subject plant site ]mown as the Roxboro Landfill. This submittal was made in
compliance with the Dam Safety Law of 1967. The plans, specifications and design data
submitted were prepared under the supervision of Mr. Gary W. Ahlberg, PE and Mr.
Gregory G. Mills, PE.
The Roxboro Landfill area when completed will encompass approximately 71 acres constructed
in five phases. This Landfill is contained within the watershed of the East Ash Pond Dam which
has been determined to be of low hazard classification. The northern fill slope toe of the Phases
IV and V Landfill will be approximately 700 feet upstream from the crest of the East Ash Pond
Dam which is centered at Latitude: 36.4807 degrees, Longitude:-79.0668 degrees.
This letter constitutes approval of the proposal to modify the subject dam according to the plans
and specifications received by this Division on January 29, 2010 with the following stipulations:
1612 Mail Service Center, Raleigh, North Carolina 27699-1612 • Telephone [phone] FAX: [phone]
512 North Salisbury Street, Raleigh, North Carolina, 27604 • Internethttp://www.dlr.enr.state.nc.us/pagesflandqualitysection.hlml

Mr. Fred Holt
Roxboro Plant East Ash Pond Dam
Phases IV and V Landfill (Proposed)
April 8, 2010
Page 2 of 3
1. Project construction shall be supervised by Mr. Gary W. Ahlberg, PE and Mr. Gregory G.
Mills, PE. Mr. Gary W. Ahlberg, PE and Mr. Gregory G. Mills, PE shall be responsible
for field observation of construction as necessary to ensure compliance with approved
plans.
2. During construction, the Division of Land Resources may require such progress reports
as are deemed necessary.
3. In accordance with GS 143-215.29 and NCAC 15A-2K .0203, .0215, and .0212, Mr.
Gary W. Ahlberg, PE and Mr. Gregory G. Mills, PE shall submit each year on the date of
this approval a progress report indicating that construction is proceeding in accordance
with approved plans. Within 30 days of final completion of the project, Mr. Gary W.
Ahlberg, PE and Mr. Gregory G. Mills, PE shall inspect the completed work and upon
finding that the work has been done as specified and the dam is safe, shall file with the
Division of Land Resources two sets of record drawings and a certificate stating that the
work has been completed in accordance with approved plans, specifications and other
requirements.
4. Final approval by the Division of Land Resources for operation of this dam pursuant to
record drawing and final certification submittal will be required.
5. You must notify Mr. John Holley, PE, Regional Engineer, Land Quality Section, 1628
Mail Service Center, Raleigh, North Carolina 27699-1628 or 3800 Barrett Drive, Raleigh
North Carolina 27609, telephone number [phone] ten days before the start of
construction.
The Army Corps of Engineers and the Water Quality Section of this Department should be
contacted to determine if additional permits are required. Also, the erosion and sediment control
program having jurisdiction should be contacted to determine permit requirements. In any case,
sediment must be prevented from entering the waters of the state or flowing onto neighboring
property. Should this dam be approved by the Division of Land Resources for decommissioned
status, this approval will no longer be in effect and there will no longer be a requirement to meet
stipulations of this approval.
Construction of the modifications must begin within one year of the date of this letter or this
approval is void. For assistance you may contact the Raleigh Regional Office at [phone]
or a staff member of the Dam Safety Program in the Raleigh Central Office at telephone number
(919) 7334574.
/Sincerely,
(� �.
Steven M. McEvo
State Dam Safety En ' eer

» 46
Mr. Fred Holt
Roxboro Plant East Ash Pond Dam
Phases W and V Landfill (Proposed)
April 8, 2010
Page 3 of 3
cc: Mr. Gary W. Ahlberg, PE
Mr. Gregory G. Mills, PE
Mr. John Holley, PE, Regional Engineer
Surface Water Protection Regional Supervisor
Mr. Dexter Matthews, Division of Waste Management
File name: PERSO-033 20100408 COAM Roxboro East Ash Pond.doc

1�
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Land Resources
Land Quality Section
James D. Simons, PG, PE Beverly Eaves Perdue, Governor
Director and State Geologist Dee Freeman, Secretary
Certificate of Approval
April 8, 2010
CERTIFIED MAIL
RETURN RECEIPT
Mr. Fred Holt
Progress Energy Carolinas, Inc.
Environmental, Health and Safety Services Section
PO Box 1551 PEB 4
Raleigh, NC 27602
Re: Roxboro Plant East Ash Pond Dam
Phases IV and V Landfill (Proposed)
Person County
State ID: PERSO-033-L
Dear Mr. Holt:
This is in response to your submission received on January 29, 2010 of plans,
specifications and design data for construction of Phases IV and V of a proposed landfill
at the subject plant site known as the Roxboro Landfill. This submittal was made in
compliance with the Dam Safety Law of 1967. The plans, specifications and design data
submitted were prepared under the supervision of Mr. Gary W. Ahlberg, PE and Mr.
Gregory G. Mills, PE.
The Roxboro Landfill area when completed will encompass approximately 71 acres constructed
in five phases. This Landfill is contained within the watershed of the East Ash Pond Dam which
has been determined to be of low hazard classification. The northern fill slope toe of the Phases
IV and V Landfill will be approximately 700 feet upstream from the crest of the East Ash Pond
Dam which is centered at Latitude: 36.4807 degrees, Longitude:-79.0668 degrees.
This letter constitutes approval of the proposal to modify the subject dam according to the plans
and specifications received by this Division on January 29, 2010 with the following stipulations:
1612 Mail Service Center, Raleigh, North Carolina 27699-1612 • Telephone [phone] FAX: [phone]
512 North Salisbury Street, Raleigh, North Carolina, 27604 • Internet:http:llwww.dlr.enr.state.nc.uslpageslfandqualitysection.html

Mr. Fred Holt
Roxboro Plant East Ash Pond Dam
Phases IV and V Landfill (Proposed)
April 8, 2010
Page 2 of 3
Project construction shall be supervised by Mr. Gary W. Ahlberg, PE and Mr. Gregory G.
Mills, PE. Mr. Gary W. Ahlberg, PE and Mr. Gregory G. Mills, PE shall be responsible
for field observation of construction as necessary to ensure compliance with approved
plans.
2. During construction, the Division of Land Resources may require such progress reports
as are deemed necessary.
In accordance with GS 143-215.29 and NCAC 15A-2K .0203, .0215, and .0212, Mr.
Gary W. Ahlberg, PE and Mr. Gregory G. Mills, PE shall submit each year on the date of
this approval a progress report indicating that construction is proceeding in accordance
with approved plans. Within 30 days of final completion of the project, Mr. Gary W.
Ahlberg, PE and Mr. Gregory G. Mills, PE shall inspect the completed work and upon
finding that the work has been done as specified and the dam is safe, shall file with the
Division of Land Resources two sets of record drawings and a certificate stating that the
work has been completed in accordance with approved plans, specifications and other
requirements.
4. Final approval by the Division of Land Resources for operation of this dam pursuant to
record drawing and final certification submittal will be required.
5. You must notify Mr. John Holley, PE, Regional Engineer, Land Quality Section, 1628
Mail Service Center, Raleigh, North Carolina 27699-1628 or 3800 Barrett Drive, Raleigh
North Carolina 27609, telephone number [phone] ten days before the start of
construction.
The Army Corps of Engineers and the Water Quality Section of this Department should be
contacted to determine if additional permits are required. Also, the erosion and sediment control
program having jurisdiction should be contacted to determine permit requirements. In any case,
sediment must be prevented from entering the waters of the state or flowing onto neighboring
property. Should this dam be approved by the Division of Land Resources for decommissioned
status, this approval will no longer be in effect and there will no longer be a requirement to meet
stipulations of this approval.
Construction of the modifications must begin within one year of the date of this letter or this
approval is void. For assistance you may contact the Raleigh Regional Office at [phone]
or a staff member of the Dam Safety Program in the Raleigh Central Office at telephone number
[phone].
Sincerely,
(�XA.
Steven M. McEvo
State Dam Safety En ' eer

Mr. Fred Holt
Roxboro Plant East Ash Pond Dam
Phases IV and V Landfill (Proposed)
April 8, 2010
Page 2 of 3
1. Project construction shall be supervised by Mr. Gary W. Ahlberg, PE and Mr. Gregory G.
Mills, PE. Mr. Gary W. Ahlberg, PE and Mr. Gregory G. Mills, PE shall be responsible
for field observation of construction as necessary to ensure compliance with approved
plans.
2. During construction, the Division of Land Resources may require such progress reports
as are deemed necessary.
3. In accordance with GS 143-215.29 and NCAC 15A-2K .0203, .0215, and .0212, Mr.
Gary W. Ahlberg, PE and Mr. Gregory G. Mills, PE shall submit each year on the date of
this approval a progress report indicating that construction is proceeding in accordance
with approved plans. Within 30 days of final completion of the project, Mr. Gary W.
Ahlberg, PE and Mr. Gregory G. Mills, PE shall inspect the completed work and upon
finding that the work has been done as specified and the dam is safe, shall file with the
Division of Land Resources two sets of record drawings and a certificate stating that the
work has been completed in accordance with approved plans, specifications and other
requirements.
4. Final approval by the Division of Land Resources for operation of this dam pursuant to
record drawing and final certification submittal will be required.
5. You must notify Mr. John Holley, PE, Regional Engineer, Land Quality Section,1628
Mail Service Center, Raleigh, North Carolina 27699-1628 or 3800 Barrett Drive, Raleigh
North Carolina 27609, telephone number [phone] ten days before the start of
construction.
The Army Corps of Engineers and the Water Quality Section of this Department should be
contacted to determine if additional permits are required. Also, the erosion and sediment control
program having jurisdiction should be contacted to determine permit requirements. In any case,
sediment must be prevented from entering the waters of the state or flowing onto neighboring
property. Should this dam be approved by the Division of Land Resources for decommissioned
status, this approval will no longer be in effect and there will no longer be a requirement to meet
stipulations of this approval.
Construction of the modifications must begin within one year of the date of this letter or this
approval is void. For assistance you may contact the Raleigh Regional Office at [phone]
or a staff member of the Dam Safety Program in the Raleigh Central Office at telephone number
[phone].
Sincerely,
Steven M. McEvo
State Dam Safety En ' eer
i N.

Mr. Fred Holt
Roxboro Plant East Ash Pond Dam
Phases IV and V Landfill (Proposed)
April 8, 2010
Page 3 of 3
cc: Mr. Gary W. Ahlberg, PE
Mr. Gregory G. Mills, PE
Mr. John Holley, PE, Regional Engineer
Surface Water Protection Regional Supervisor
Mr. Dexter Matthews, Division of Waste Management
File name: PERSO-033 20100408 COAM Roxboro East Ash Pond.doc

7M
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Division of Water Quality
Coleen H. Sullins
Director
April 14, 2010
Mr. Harry Sideris, Plant Manager
Progress Energy Carolinas, Inc., Roxboro Steam Plant
1700 Dunnaway Road
Semora, North Carolina 27343
Dear Mr. Sideris:
Dee Freeman
Secretary
SUBJECT: Authorization to Construct
A to C No. 003425A07
Progress Energy Carolinas, Inc.
Roxboro Steam Plant
Alum Treatment Delivery System
Person County
A letter of request for Authorization to Construct was received March 31, 2010, by the
Division, and final plans and specifications for the subject project have been reviewed and found
to be satisfactory. Authorization is hereby granted for the construction of modifications to the
existing Roxboro Steam Plant FGD Wastewater System, with discharge of treated effluent from
the FGD Wastewater Treatment System (Internal Outfall 010) into the Ash Pond Discharge
Canal (Internal Outfall 002), which discharges to the Heated Water Discharge Canal, which
discharges to Hyco Lake (Outfall 003) in the Roanoke River Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
A 275 gallon Alum chemical storage tank with feed pump and delivery system
into the Ash Basin or Discharge Canal (prior to Internal Outfall 002), in
conformity with the project plans, specifications, and other supporting data
subsequently filed and approved by the Department of Environment and Natural
Resources.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NC0003425 issued April 9, 2007, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0003425.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Ralegh, North Carolina 27604 jV a Carolina
Plane: 919-807-63001 FAX: [phone] Customer Service: "77-623-6748
Internet: www ricwaterquality.org aturally
An Equal Opportunity \ Affirmative Action Employer

Mr. Harry Sideris, Plant Manager
April 14, 2010
Page 2
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the Division.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Raleigh Regional Office, telephone number (919) 7914200, shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Construction Grants & Loans,
DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II,111 and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T I 5A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North

Ei
Mr. Harry Sideris, Plant Manager
April 14, 2010
Page 2
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the Division.
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Raleigh Regional Office, telephone number [phone], shall be notified at least
forty-eight (48) hours in advance of operation of the installed facilities so that an on site
inspection can be made. Such notification to the regional supervisor shall be made during the
normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State
Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Construction Grants & Loans,
DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-1633.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at
least equivalent to or greater than the classification assigned to the wastewater treatment
facilities by the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall
continue to properly maintain and operate the existing wastewater treatment facilities at all times,
and in such a manner, as necessary to comply with the effluent limits specified in the NPDES
Permit.
You are reminded that it is mandatory for the project to be constructed in accordance
with the North Carolina Sedimentation Pollution Control Act, and when applicable, the North

Mr. Harry Sideris, Plant Manager
April 14, 2010
Page 3
Carolina Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Seth Robertson, P.E. at telephone
number [phone].
Sincerely,
Coleen H. Sullins
kp:sr
cc: Leigh Anne Casavant, P.E. — Progress Energy, 7001 Pinecrest Road, Raleigh, NC 27612
Person County Health Department
DWQ Raleigh Regional Office, Surface Water Protection
DWQ, Technical Assistance and Certification Unit
DWQ, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
ATC File # 003425A07

Progress Energy Carolinas, Inc.
Roxboro Steam Station
A To C No. 003425A07
Issued April 14, 2010
Engineer's Certification
I, , as a duly registered Professional Engineer in the
State of North Carolina, having been authorized to observe (periodically/weekly/full time) the
construction of the modifications and improvements to the Roxboro Steam Plant FGD
Wastewater System, located on NCSR 1377 in Person County for Progress Energy, hereby state
that, to the best of my abilities, due care and diligence was used in the observation of the
following construction:
A 275 gallon Alum chemical storage tank with feed pump and delivery system
into the Ash Basin or Discharge Canal (prior to Internal Outfall 002), in
conformity with the project plans, specifications, and other supporting data
subsequently filed and approved by the Department of Environment and Natural
Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature
Date
Registration No.
Send to: Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633

LTXIVJ
IiA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
February 2, 2010
CERTIFIED MAIL 7002 0860 0006 5836 0922
RETURN RECEIPT REQUESTED
Harry Sideris, Plant Manager
Progress Energy Carolinas, Inc.
PO Box 1551
Raleigh, North Carolina 27602
Subject: Draft Special Order by Consent
Roxboro Steam Electric Power Plant
EMC SOC WQ S09-007
NPDES Permit NC0003425
Person County
Dear Mr. Sideris:
Dee Freeman
Secretary
Attached for your review and approval is a draft Special Order by Consent (SOC). Please read
through the document, and if the terms and conditions of the Order meet with your approval,
then sign as indicated on page 5 of the Order. Within fifteen (15) days receipt of the draft SOC,
return the signed SOC to my attention at the letterhead address. Upon receipt of the signed
Order, our office will prepare the Order for a thirty (30) day Public Notice, as required by State
regulations.
Please note, if executed, this Special Order by Consent may be amended provided Progress
Energy has made good faith efforts to secure funding, complete all construction and achieve
compliance within the dates specified. If you have any questions regarding the terms of the
SOC, please contact Danny Smith in the Raleigh Regional Office at 919/791-4200.
Sincerely,
Vanessa E. Manuel
Point Source Branch
ATTACHMENTS
Cc: Danny Smith, DWQ/SWP — RRO w/ attachments
SOC File S09-007 w/ attachments
1617 Mail Service center, Raleigh, North Carolina 27699,1617
Location: 512 N. Salisbury St Raleigh, North Carolina 276N n.,e..t, 7"
Phone:[phone] FAX: [phone] Customer Service: 1-877-623-6748 ca iCarohna
Intemet w .nenaterquality.org naturally
An Equal oppgmfirm
�nry I Affirmative Action Employer

G[073isKof17674i►`F_�
ENVIRONMENTAL MANAGEMENT COMMISSION
COUNTY OF PERSON
IN THE MATTER OF )
NORTH CAROLINA )
PERMIT NUMBER NC0003425 held by )
CAROLINA POWER AND LIGHT COMPANY D/B/A )
PROGRESS ENERGY CAROLINAS, INC. )
SPECIAL ORDER BY CONSENT
EMC SOC WQ NO. S09-007
Pursuant to provisions of North Carolina General Statutes (G.S.) 143-215.2, this Special Order by
Consent is entered into by Carolina Power and Light Company D/B/A Progress Energy Carolinas, Inc.,
hereinafter referred to as Progress Energy, and the North Carolina Environmental Management
Commission, an agency of the State of North Carolina created by G.S. 143E-282, and herein after
referred to as the Commission:
1. Progress Energy and the Commission hereby stipulate the following:
a. Progress Energy holds North Carolina NPDES permit number NC0003425 for operation of
an existing wastewater treatment works and for making an outlet from there for treated
wastewater to Hyco Lake, classified as WS-V and B waters of this state in the Roanoke
River basin, but has experienced structural signs of stress within the plants existing
(West) Flue Gas Desulfurization (FGD) Wastewater Gypsum Settling Pond. In addition to
the efforts made by Progress Energy, this shall affect future compliance by requiring
preparation and implementation of wastewater treatment plant (WWTP) repairs and
upgrades, and collecting additional sampling and monitoring data of the effluent waste
streams as requested by the NC Division of Water Quality Raleigh Regional Office Surface
Water Protection letter dated November 6, 2009.
b. Progress Energy installed wet limestone, forced oxidation flue gas desulfurization (FGD)
scrubbers on all four operating units at the Roxboro Steam Electric Plant in response to
requirements from the State of North Carolina under the clean smokestacks legislation.
Accordingly, Progress Energy installed a FGD Wastewater Gypsum Settling Pond, a
bioreactor (a biological treatment unit), and a FGD Flush Pond to treat wastewater
generated by the recently added FGD scrubbers.
c. Progress Energy has deconstructed the existing FGD Flush Pond and lowered the
operational level of the existing (West) FGD Wastewater Gypsum Settling Pond to a level
where structural concerns and signs of stress are minimized.
d. Progress Energy shall fund the planning, designing, and constructing of new or improved
wastewater treatment and disposal facilities which, once constructed and operated, will be
sufficient to adequately convey and treat wastewater presently being discharged, to the
extent that Progress Energy will be able to comply with the NPDES permit requirements
and North Carolina rules and regulations.

Progress Energy Carolinas, Inc.
EMC SOC WQ NO. S09-007
e. Since this special order is by consent, neither parry will file a petition for a contested case
or for judicial review concerning its terms.
2. Progress Energy hereby agrees to do the following:
a. Undertake the following activities in accordance with the indicated time schedule.
(1) FGD Flush Pond. Complete construction of the FGD Flush Pond on or before
November 7, 2009. (Met 9/22/2009)
(2) New FGD Wastewater Gypsum Settling Pond. Begin construction of the new FGD
Wastewater Gypsum Settling Pond on or before December 22, 2009 (Met
10/9/2009) and complete construction on or before May 31, 2011.
(3) Existing (West) FGD Wastewater Gypsum Settling Pond. If necessary, begin the
refurbishment of the existing (West) FGD Wastewater Settling Pond within 45 days
of completion of the new FGD Wastewater Gypsum Settling Pond. If Progress
Energy's decision does not include rebuilding the existing pond, then the pond will
be modified in a manner to prevent continued water accumulation. This includes
process water, stormwater, and water from precipitation.
If necessary to rebuild the existing (West) FGD Wastewater Gypsum Settling Pond,
complete construction of the existing (West) FGD Wastewater Gypsum Settling
Pond within 270 days of beginning construction or on or before May 31, 2011,
whichever is later.
Beginning construction shall be defined as mobilizing contractors for specified work
and completing construction shall be defined as completing a signed engineer's
certificate of completion.
b. Quarterly Progress Reports. Progress Energy will submit quarterly progress reports
detailing the work and activities undertaken with regards to schedules and activities
included in this SOC. The reports are to be submitted as follows: one copy must be mailed
to the Raleigh Regional Supervisor, Division of Water Quality, Surface Water Protection
Section, 1628 Mail Service Center, Raleigh, NC 27699-1628, and one copy must be mailed
to the Point Source Branch, Eastern NPDES Program, Division of Water Quality, 1617 Mail
Service Center, Raleigh, NC 27699-1617. The quarterly reports are due in each respective
office no later than January 31', April 30`", July 31' and October 31' for the duration of
this order.
c. Final Written Account. Progress Energy must provide a final written account of findings
and results, specifically using both qualified and statistically valid sample data (the
additional sampling and monitoring data collected by the letters dated March 4, 2008 and
November 6, 2009 through to the end of this SOC).
This written account of findings
additional control or treatment
and results shall provide
of process or industrial
may directly cause or contribute to exceedence of applicable water quality standards in
Hyco Lake.
a demonstration of any need for
waste stream contaminants that
Page 2 of 5

Progress Energy Carolinas, Inc.
EMC SOC WQ NO. S09-007
If Progress Energy's final account of findings and results reveal that process or industrial
waste stream contaminants directly cause or contribute to exceedance of applicable water
quality standards in Hyco Lake, then Progress Energy must also include proposals for
additional modifications to the wastewater treatment units. This proposal for modification
must minimally address the suitability of pH adjustment, clarification, chemical
precipitation, other appropriate treatment options, and provide a respective
implementation schedule with dates.
The final written account of findings and results must be submitted to the Raleigh Regional
Office on or before August 1, 2011.
d. In addition to the account of findings and results required by paragraph 2c above, other
sampling and monitoring results obtained utilizing labs not certified in North Carolina and
alternative lab methods not currently certified by the EPA may also be reported and used
in the final written account.
e. Progress Energy will also provide a presentation (e.g. Powerpoint /oral presentation) of the
final written account of findings and results to the North Carolina Division of Water Quality,
Raleigh Regional Office on or before August 31, 2011.
The presentation must be given by Progress Energy personnel; however, Progress Energy
can utilize evaluations, results, and findings of consultants, as appropriate. Progress
Energy must address the existing wastewater treatment system, any new/proposed
changes to the existing wastewater system, and Progress Energy's position on process
wastewaters or industrial waste contaminants that may directly cause or contribute to
exceedence of applicable water quality standards in Hyco Lake.
No later than fourteen (14) calendar days after any date identified for accomplishment of
any activity listed in paragraph 2 above, submit to the Raleigh Regional Office of the
Division of Water Quality written notice of compliance (including the date compliance was
achieved along with supporting documentation if applicable) or noncompliance therewith.
In the case of noncompliance, the notice shall include a statement of the reason(s) for
noncompliance, remedial action(s) taken, and a statement identifying the extent to which
subsequent dates or times for accomplishment of listed activities may be affected.
Scheduled deadlines affected by events of noncompliance shall be adjusted to reflect such
periods of delay.
3. Progress Energy agrees to pay DWQ, by check payable to the North Carolina Department of
Environment and Natural Resources, stipulated penalties according to the following schedule for
failure to meet the deadline set out in paragraph 2.
Failure to meet a schedule date listed in paragraph $1,000 per day.
2a;
Failure to submit a final written account on or before $5,000 per day
August 1, 2011, as required by paragraph 2c and/or
failure to provide a presentation of the final written
account of findings and results on or before August
31, 2011, as required by paragraph 2e;
Page 3 of 5

Progress Energy Carolinas, Inc.
EMC SOC WQ NO. 509-007
Failure to submit progress reports as required by $1,000 for the first violation;
paragraph 2b and 2f; penalty doubles with each
subsequent assessment for late
reports.
4. Progress Energy and the commission agree that the stipulated penalties are not due if Progress
Energy satisfies the Division of Water Quality that noncompliance was caused solely by:
a. An act of God;
b. An act of war;
c. An intentional act or omission of a third -party, but this defense shall not be available if the act
or omission is that of an employee or agent of the defendant or if the act or omission occurs
in connection with a contractual relationship with Progress Energy;
d. An extraordinary event beyond Progress Energy's control. Contractor delays or failure to
obtain funding will not be considered as events beyond Progress Energy's control;
or
e. Any combination of the above causes.
Failure within 30 days of receipt of written demand to pay the penalties, or challenge them by a
contested case petition pursuant to G.S. 150 B-23, will be grounds for a collection action, which
the Attorney General is thereby authorized to initiate. The only issue in such an action will be
whether the 30 days has elapsed.
5. Noncompliance with the terms of the special order by consent is subject to enforcement action in
addition to the above stipulations, including injunctive relief pursuant to G.S. 143-215.6.C.
6. This special order by consent and any terms or conditions contained herein, hereby supersede any
and all previous Special Orders, Enforcement Compliance Schedules, Correspondence from the
Raleigh Regional Office, with the exception of the sampling and monitoring requested through the
letters dated March 4, 2008 and November 6, 2009, terms, and conditions contained therein.
Full compliance with the special order by consent will resolve existing FGD Wastewater Gypsum
Settling Pond and FGD Flush Pond issues identified in the March 4, 2008, letter from the North
Carolina Division of Water Quality to Progress Energy. This Special Order by Consent may be
amended provided Progress Energy has made good faith efforts to secure funding, complete all
construction, and achieve compliance within the dates specified.
Page 4 of 5

Progress Energy Carolinas, Inc.
EMC SOC WQ NO. S09-007
8. Progress Energy, upon signature of this Special Order by Consent, will be expected to
comply with all schedule dates, terms, and conditions of this document.
This Special Order by Consent shall expire on September 30, 2011.
For Progress Energy Carolinas, Inc.:
Print Name of Signing Official
Signature
For the North Carolina Environmental Management Commission:
Chair of the Commission
Title
Date
Date
Page 5 of 5

■ Complete items 1, 2, and 3. Also complete
Rem 4 R Restricted Delivery Is desired.
■ Print your name and address on the reverse
so that we can return the card to you.
• Attach this card to the back of the mailpiece,
or on the front R space permits.
1. Article Addressed to:
HARRY SIDERIS
PLANT MANAGER
PROGRESS ENERGY CAROLINAS
INC
PO BOX 1551
RALEIGH NC 27602
A.
X ,d/> r� / _ f'Usf� AgeAf
eceiveO DY I ' .` N�une1 I C. Date of Delivery
D. Is delivery address dtlfWM from Item 14 ❑ vea
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for Merchandise
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4. Restricted Dalkwr (Extra Fee) ❑ yes
2. Article Number r - .-�..._.....�_..__
(rranslerbwnservkeleDeq"N 002 0860 0006 5836 0922
PS Form 3811, February 2DO4 Domestic Ream Receipt 102595-02-WI540:
CERTIFIED W
(Domestic Mail C
-D
m
co F I C! A L U S E
0
Pasha 5
Cl
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Fee Here—D(Endorsement flequlred)
Restricted Delivery Fee
(Endor ent Rwuhedl
ru Total PDseet HARRY SIDERIS
o PLANT MANAGER
Sent To PROGRESS ENERGY CAROLINAS
--- - INC
Street, APR M
or PO Box Nt PO BOX 1551
CirY Staie, L RALEIGH NC 27602

4
Autumn
From: Langley, Shannon [Shannon. [e-mail]]
Sent: Monday, January 11, 2010 11:14 AM
To: Smith, Danny
Cc: Romanski, Autumn
Subject: Begin construction date
Danny,
I checked with the Generation Construction Department and confirmed that construction of the new settling pond at
Roxboro began on October 9, 2009.
Shannon
E. Shannon Lang(ey
Senior Environmental Specialist
Environmental Services Section - Carolinas
Progress Energy Carolinas, Inc.
[phone] (public)
8-770-2439 (voicenet)
`� Progress Energy

b. Fish Tissue monitoring program
Fish tissue
PEC's current biological monitoring program fish tissue analysis includes both top predator
species as well as bottom feeders as mentioned in the DWQ's email from Mr. Danny Smith
dated October 28, 2010. Currently, PEC targets Largemouth Bass, Bluegill and Catfish Y(typically white) for fish tissue analysis. Fish tissue is analyzed for the following analytes: (1
Mercury, Selenium, Arsenic, Cadmium and Copper. Both liver and muscle are analyzed.
PEC performed statistical analysis to support the position that a sample size of six specimens
was adequate but will increase that size to 10 specimens as requested by the NC DWQ. A copy
of the most recent biological monitoring p an submitted for review in December 2010) can be
provided for reference.
Because of these components, as we discussed during our meeting on February 4, 2011, we
believe the existing fish tissue monitoring program is sufficient to identify any areas of concern
with bioaccumulation in fish tissue. We would not propose any modifications at this time other
than the increase in the number of specimens for analysis to a minimum of 10.
5

LvflelOn�Me oglg pubsacsorg/est
The Impact of Coal Combustion Residue Effluent on Water
Resources: A North Carolina Example
Laura Ruh],tAvner Vengosh,*'T Gary S. Dwyer,' Heileen Hsu -Kim,§ Grace Schwartz,`
Autumn Romanski,* and S. Daniel Smith"
tDivssion of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, North Carolina 27708,
United States
#Department of Earth Science, University of Arkansas at Little Rock, Little Rock, Arkansas 72204, United States
'Civil and Environmental Engineering. Pratt School of Engineering Duke University, Durham, North Carolina 27708, United States
«Surface Water Protection Section, Division of Water Quality, North Carolina Department of Environment and Natural R�ources,
Raleigh, North Carolina 27609, United States
• Supporting Information
ABSTRACT: The combustion of coal to generate electricity Coal Ash Ponds _Distribution in the United States
produces about 130 million tons of coal combustion residues
(CCRs) each year in the United States; yet their environmental
l
implications are not well constrained. This study systematically
documents the quality of effluents discharged from CCR settling • !�:
ponds or cooling water at ten sites and the impact on associated • r !
waterways in North Carolina, compared to a reference lake. We t ��' • ti
measured the concentrations of major and trace elements in over
300 samples from CCR effluents, surface water from lakes and
rivers at different downstream and upstream points, and pore ,•� •
water extracted from lake sediments. The data show that CCR _
effluents contain high levels of contaminants that in several cases
H071dxyMil<t&:�;Ei+A• �srotbKat�' �b.svam..n-ias t. _ I
gljoo
This investigation demonstrates the quality of receiving
waters in North Carolina depends on (1) the ratio between
effluent flux and freshwater resource volumes and (2) recycling of
trace elements through adsorption on suspended particles and release to deep surface water or pore water in bottom sediments
during periods of thermal water stratification and anoxic conditions. The impact of CCRs is long-term, which influences
contaminant accumulation and the health of aquatic life in water associated with coal-fired power plants.
■ INTRODUCrION
Numerous studies have shown that effluents generated from
leaching of coal combustion residues (CCRs) typically have
high concentrations of toxic elements."" Yet, the overall impact
of disposed CCR wastes on the quality of water resources in the
U.S. is largely unexplored, except in a few specific case -studies,
such as CCR spiUS.''• In the U.S., approximately six hundred
power plantss generate 130 million tons of CCRs annually,6 of
which 56% is stored in surface impoundments and landfills,
while the remaining are reused for concrete, cement, and
construction industries. CCRs, encompassing fly ash, bottom
ash, and flue gas desulfurization (FGD) material, represent one
the largest industrial waste streams in the U.S. and are not
classified as hazardous wastes Despite the large volume of CCR
effluents generated annually and their disposal into hundreds of
surface water bodies, the environmental risks associated with
these disposal practices are not well-known. Moreover, because
of the lack of CCR waste data,9 the effluents that are discharged
from coal feed power plants and pennitted-by the national and
state regulatory bodies lack consistent monitoring and limit
requirements that are relevant to composition of CCR effluents.
Water in coal-fired power plants is used in steam production
and cooling as well as the transport of CCRs from the plant to
holding ponds. In spite of some losses,10 the residual effluent
water is discharged to the environment and is permitted
through the National Pollution Discharge Elimination System
(NPDES) Program. The NPDES Program as established by the
Clean Water Act requires the control and permitting of point
source discharges of wastewater." Although the NPDES
regulations for CCR effluents disposal vary between states, in
most cases they consist of only limited factors. For example,
NC regulations follow the federal guiding permit limits for
effluent discharge that include only total suspended solids and
Received: August 14, 2012
Revised: September 23, 2012
Accepted: September 30, 2012
® AC$ Publlratjon5 o)D= American chemkal sodety A d. dm.wy,o rozuesroamts i rn am. sn Te b xxxX tocc xxx-M

Environmental Science & Technology
Belews Plant at
Belews Lake Dan Rver Plant -
onlheDanRiver Rmboro Plant 1
at Hyeo Lake
4_-
Asheville Plant at Lake Julian
and the French Broad Rye, Mayo Plant at
Mayo Lake
Rrverbend Plain
Marshall Plain at Mountain Allen Plant at
at lake Norman Island Lake Lake Wylie
High Rock Lake
Figure 1. Map of coal-fired power plants and CCR disposal sites to waterways in North Carolina that were investigated in this study. Also included is
a reference lake (Jordan Lake).
Table 1. Background Information on the Investigated Coal -Fired Electrical Power Plants, CCR Effluent Discharge through
NPDES Outfalis, and Associated Waterways in North Carolina'
ay. mre-
through
coal-fired power
size
town
ay. ash pond discharge
cooling HrO
scrubber
effluent
plant site
owner
(MW)
location
Bow (MGD)
flow (MGD)
water body
basin
system
sampling
Roxboro Steam
Progress
2558
Semom
11
1007
Hym lake
Roanoke
Wet FGD
indirect
Station
Energy
System
Mayo Stream
Progress
745
Roxboro
7
unit..
Mayo Reservior
Roanoke
Wet FGD
indirect
Station
Energy
System
Allen Steam
Duke
1140
Belmont
IS
5
Catawba River/lake
Catawba
Wet FGD
indirect
Station
Wylie
System
Marshall Steam
Duke
2090
Terrell
8
1463
Catawba River/lake
Catawba
Wet FGD
indirect
Station
Norman
System
Belewe Greek
Duke
2240
Walton
9
12M
Dan River/Rdews
Roanoke
Wet FGD
Steam Station
Cove
Lake
System
Asheville Steam
Progress
376
Arden
3
251
French Broad River/
French
Wet FGD
dyed
Station
Energy
Lake Julian
Broad
System
Rlverbend Steam
Duke
454
Mount
4
375
Catawba River/ML
Catawba
None
direct
Station
Holly
Island lake
Buck Steam
Duke
369
Salisbury
4
258
High Rock Lake
Yadkin-
None
indirect
Station
PeeDee
Dan River Steam
Duke
276
Eden
1
201
Dan River
Roanoke
None
direct
Station
Reference lake
No Power
N/A
Apex
N/A
N/A
B.EvereB Jordan
Cape Fear
None
N/A
Plant
Lake
'The size (in megawatts) of the
plants
as well as the
amount of water discharged (in million gallons per day) in each plant are
reported Also listed is
the reference site,
Jordan Lake.
oil and grease12 but do not include other constituent limits that In recent years, air regulations have become more stringent
could be relevant to CCR effluents, unless written in specifically (e.g, Interstate Clean Air Rule and Clean Air Act), requiring
by the permitting body. the capture of potential atmospheric pollutants, like sulfur
B dx.doi.org/10.1021/es3D3263x I Envimn. So, re[hnd xaxx, xxx, xxX-rrx

Environmental Science & Technology
oxides (SO.). The FGD process effectively removes many of
the volatile elements associated with the SOY Most coal-fired
power plants in the U.S. do not have FGD scrubbers, but those
with FGD capabilities produced 58% of the electricity
generated from coal in the U.S. in 2010.13 Of those with
FGD scrubbers, most (up to 88% in 2010) use a wet FGD
disposal system.' This process results in cleaner air emissions,
but the trade-off is significant enrichments of contaminants in
solid wastes and wastewater discharged from power plants.
Several studies have shown that groundwater near these CCR
disposal facilities was contaminated by CCR leachates,14 and
wildlife poisoning and environmental damages from CCR
impoundments.15 Yet, the long -tern impact of CCR effluents is
poorly studied in surface water surrounding coal -feed power
plants.
This study aims to investigate the impact of CCR disposal on
surface water surrounding coal-fired power plants in North
Carolina. We systematically document the quality of discharged
effluents from ten CCR effluent and cooling water discharge
sites and the impact on associated waterways (lakes, rivers), in
addition to a reference (control) lake (Figure 1; Table 1). We
measured the concentrations of major and trace elements in 76
CCR effluent samples, 129 surface water samples from lakes
and rivers from different downstream and upstream (back-
ground) sites, and 98 pore water samples extracted from the
lake sediments. The study is based on an investigation of
monthly sampling over one year at two lakes (Hyco and Mayo)
and a single sampling for ten other waterways (Table 1, Figure
I).
■ METHODS
During August 2010 to February 2012, a total of thirty-six field
trips were made to the research sites in North Carolina (Figure
1, Supporting Information Table Sl) with over 300 surface and
pore water samples were collected. Samples were collected
monthly from Hyco and Mayo Lakes from August 2010
through August 2011. The other investigated water resources
were Lake Norman, Mountain Island Lake, Lake Wylie, High
Rock lake, Belews Lake, Dan River, French Broad River, Lake
Julian, and Jordan lake as a reference lake (Figure 1). These
bodies of water were sampled during the summer of 2011, with
the exception of Mountain Island Lake, which was sampled
both during the summers of 2010 and 2011. Water sampling
procedure strictly followed USGS protocols.16 Water samples
were taken at various depths with a Wildco Beta water sampler
(for trace metals) to capture variations in the water column
induced by the epilimnion and hypolimnion during lake water
stratification. Cations and trace metals were measured in both
dissolved and total fortis. Aker filtration of samples in the field
(0.45 µm syringe filters), trace elements were measured by
inductively coupled plasma mass spectrometry (ICP-MS),
major elements by direct current plasma optical emission
spectrometry (DCP-OES), and anions by ion chromatography
(IC) at Duke University. Pore water was extracted from lake
bottom sediments obtained using a Wildco box core (up to 25
cm depth), then vacuum filtration or centrifugation to extract
the pore water. Inorartic arsenic species were measured using
the Bednar method, in which the uncharged arsenic species
As' was separated from pore water through an anion exchange
resin cartridge and preserved in the field Trace elements were
measured with a VG PlasmaQuad-3 (Thermo Fisher Scientific
Inc) inductively coupled plasma mass spectrometry (ICP-MS)
and major elements with an ARL SpectraSpan 7 (Thermo
Fisher Scientific Inc) direct current plasma optical emission
spectrometry (DCP-OES). Both instruments were calibrated to
the National Institute of Standards and Technology 1643e
standard, which was used at varying concentrations before,
after, and throughout sample runs. Internal standards of In, Th,
and Bi were spiked into all samples prior to measurement on
the ICP-MS. The detection limit of the ICP-MS of each
element was determined by dividing three times the standard
deviation of repeated blank measurements by the slope of the
external standard. The resulting values were then averaged (n =
4) and are reported for trace elements measured on the ICP-
MS in Supporting Information Table S2. Analytical precision
was calculated as the relative percent difference (RPD) of the
results of duplicate sample measurements and is also reported
in Supporting Information Table S2.
■ RESULTS AND DISCUSSION
Quality of Discharged Effluent. 'Phis study documented
elevated contaminant concentrations in CCR effluents dis-
charged from coal-fired power plants into receiving waters in
NC (Figures 2 and 3; Supporting Information Table S2). For
lean Ash oNe
-F Tr
too .,;,J-t
m
Ca Mg CI Soa Sr Mn ti B # V Cr Ni As Se Rb Mo 5b TI Pb
Figure L Mean values of enrichment factors of dissolved constituents
in CCR effluents disposed from plants with an FGD system (red) and
without an FGD system (blue). The enrichment factors were
calculated by the ratio of different elements concentrations in directly
sampled CCR effluents to the concentrations in the upstream water
that feeds each plant.
example, 1 sampling. the AVON& aA0
ails- contained arsenic contantrations
ng water standard of 10 µg/L with
tenting 44.5 µg/L and 92 µ {It, respc�ti,,]}.
yearlong average selenium concen-
jWcfi,�ch-ge
S.4 Jig/L) exceeded the S pg/L EPA Chronic
Criterion Concentration (CCC) for aquatic life. Several of the
individual monthly sampling events it the Mayo NPDFS outfall
showed Se concentrations almost 4 times the CCC limit, as
qs 19 µg/L (Figure 3). &.summer sampling event at the
Plant revealed selenium concentrations over 17 times'
C(87.2 µg/L). The NPDES outfall for the Asheville
exceeded other human and aquatic life benchmarks,'
antimony,gye the EPA's MCL (6 Mg/0 at 10.9
um @);the fresh water aquatic life (EPA
._A," µg/),-..and _-thallium
1111111111110992MC1, at
'SSRR%NTsD m' others from the water near the outfall, where
veN sampling was not accessible (Table 1). Thus, the data at
some of the outfall sites (Roxboro, Mayo, Marshall, and Allen)
tla ,,,o IOJW 11i3326ax I Eawb .SN, rerAr )0o: M.xxx-xxx

Environmental Science & Technology -
Us MINUMI&MMUMIUM111
•
V
/8
• �� EV4MCI S
1111 M to
DR FBR HL A LN LW ML MIL 8L U
DR F8R HL A LN LW ML MIL BL U
DR FBR HL A LN LW ML MIL BL U
Figure 3. Concentration ranges of selected contaminants in CCR effluents from coal plants in NC. Red symbols correspond to plants with combined
coal ash and FGD systems, blue symbols for only coal ash (without FGD), green for the reference lake (Jordan Lake), and black for cooling water
separated from CCR effluents. The EPA drinking water (MCL) and ecological (CCC) benchmarks are referenced. Sites include the Din River (DR),
French Broad River (FBR), Hyco Lake (HL), Jordan take (JL), lake Norman (I.N), Lake Wylie (LW), Mayo Lake (ML), Mtn. Island Lake (MIL),
Belews lake (BL), and Lake Julian (LJ) that are shown in Figure 1.
underestimate the full extent of the CCR waste stream
contaminant level of the discharge. In spite of efforts to reduce
the levels of contaminants discharged through the NPDES
outfall by using settling ponds, clarifier, bioreactor, or wetland
at some sites" a our data clearly show high contaminant levels
that suggest the need for enhanced removal/wastewater
treatment.
Many of the outfalls sampled consisted of wastewater from
the FGD process that was subsequently diluted with the ash
pond water (or other process water), and at some locations,
also mixed with the cooling water (e.g., Roxboro plant at Hyco
Lake; Supporting Information Table S3) prior to discharge at
the outfall. Therefore for plants with an FGD system, the
effluent concentrations represent some dilution of the origin
FGD wastewaters.19'm The data show that outfafls sampiel
from coal fired power plants with an FGD system (n = 69) had
significantly higher concentrations of major ions (Ca, Mg, and
Cl; p < 0.01) and minor constituents such as B (p < 0.01), Br
(p < 0.01), and Cr (p < 0.05) relative to outfalls with only ash
pond water or cooling water disposal (n = 5 and n = 7
respectively; Figure 3). The plants with no FGD system, but
with wet ash disposal systems and subsequent discharges (n =
5), had higher concentrations of several constituents including
As, V, Sb, Li, TI, and Mo (p < 0.01) relative to effluents from
FGD systems (Supporting Information Table S2). Selenium
concentrations were also higher at FGD outfalls with several
plants exceeding the EPA's CCC of 5 µg/L (Mayo at 19 µg/L
and Asheville at 82 µg/L compared to Riverbend at <3.5 µg/L`
and Dan River at <DL of selenium)-. Overall, the CCR outfalls
were enriched in many constituents compared to the upstream
waters that feed them, and the FGD effluents had larger
enrichments in many ions compared to the ash discharge only
outfalls (Figure 2).
Annual fluxes of dissolved trace elements through CCR-
effluent discharge into NC waterways show large variations
(Supporting Information Table S4). The magnitude of the
arsenic flux from CCR effluents exceeded the natural flux of the
associated water system in some cases (Roxboro, Ashville,
Mayo) and was lower in others (Dan River, Allen, Riverbend).
The anthropogenic fluxes exceed the natural fluxes even in sites
where the CCR discharge flow rate consisted of less than a
percent of the natural water flow. The flux measurements
reported in this study were also compared to the Toxic Release
Inventory (TRI)21 and show both consistent and inconsistent
results (Supporting Information Table S4). The overall CCR
Fluxes of contaminants into NC waterways, such m B, As, and
Se were 278, 0.7, and 0.8 (metric) tons per year, respectively.
Yet the magnitude of As, Se, and Sb fluxes were significantly
lower than flux values reported previously for CCR discharge to
the Chattahoochee River, Georgia.22
In contrast to the CCR outfalls, separated cooling water
effluents that were sampled in this study had much lower
contaminant concentrations, which did not exceed any of the
human or aquatic life benchmarks (Supporting Information
Table S2) and were not enriched in any constituents compared
to their respective upstream waters and reference lake (Jordan
Lake) (Supporting Information Table S2). Consequently, in
outfall sites where CCR effluents and cooling water were
blended, the contaminant level was significantly reduced. For
example, in Hyco lake, where the cooling water constitutes
&c oorgMIWI/e 0320x1b,W Sa Tedwa X=M M-M

Environmental Science & Technology
Ism
0 a a W W 100 in
C.hW'se (Aplt)
as
1.
0b
0 A .0 00 w 1W In
chio*$B 04t)
IM
10 100 '000
ChbAde ((0dt)
Figure 4. Boron, selenium, and arsenic versus chloride concentrations in Hyco lake. The CCR effluent concentrations are marked with red circles,
surface lake water by blue squares, porewater from outfall areas by black triangles, and porewater from downstream areas by green diamonds. Note
the high correlation of boron with chloride in the lake water (i.e., a conservative behavior) relative to the low correlations of arsenic and selenium.
The data show differential depletion of boron and selenium and enrichment of arsenic in pore water relative to lake water.
>98% of the effluent volume (Supporting Information Table
S3) the contaminant levels of the NPDES outfall would be
significantly higher if the cooling component was reduced or
restricted (e.g., recirculating cooling water at Mayo Lake). The
direct effluents from the FGD process and ash ponds at
Roxboro were reported to have concentrations of As ranging
between 1.6 and 394 µg/L and Se ranging 4.3-238 µg/L
during the yearlong sampling (Supporting Information Table
S3) Z 24 Therefore, cooling water has an important mitigating
effect on the quality of NPDES outfalls in NC.
Impact on the Aquatic Systems. We further analyzed the
impact of CCR effluents on the quality of receiving waters by
systematically comparing the chemical composition in waters
downstream of the disposal sites relative to upstream waters
from the same riverAake and a reference lake that has no
connection to coal plant discharge (Jordan Lake; Figure 1).
The data show elevated concentrations, particularly for Ca, Mg,
Sr, Li, B, V, Cr, Se, Mo, F, Cl, Br, S042- (p < 0.01), as well as
for As and Tl (p < 0.05), in downstream water relative to
upstream water. Likewise, the concentrations of Ca, Sr, Li, B (p
< 0.01), as well as V, Se, and Mo (p < 0.05) were elevated in
sites downstream of the outfalls relative to concentrations in
the reference lake (Supporting Information Table S2).
In spite of the large dilution of effluent discharge, which plays
a key role in reducing the dissolved constituents released to
surface waters, we observed significant variations and differ-
ential impacts of various constituents after CCR release into the
receiving waters. We grouped the major and minor elements
according to their chemical behavior as monitored in Hyco and
Mayo Lakes (Supporting Information Table SS). In Group 1,
the concentrations of boron (Rz = 0.88; Figure 4), calcium (W
= 0.96), strontium (Rz = 0.95), bromide (R' = 0.91), and
sulfate (Rz = 0.86) in filtered water (0.45 µco) show linear
correlations with chloride during the yearlong sampling (Figure
4, Supporting Information Figure S1, and Supporting
Information Table SS), reflecting their conservative (i.e.,
nonreactive) behavior in the lake system. Thus dilution
seems to be the key factor determining their concentrations
in the affected rivers/lakes. The concentration of other
elements (Se, Mg, Cr, V, and Bar defined as Group 2) in
filtered water show a nonlinear correlation with C1 (0.3 < Rz >
0.6) that suggests some attenuation in the lakes (e.g., sorption
to particles). In contrast, As, Fe, and Mn that defines Group 3
show low or no correlation with chloride (W = 0.01, 0.07, and
0.001, respectively; Supporting Information Table S3),
indicating strong association with suspended particles in the
water column. Higher dissolved concentrations of these
constituents were observed at the bottom of the lake during
periods of thermal stratification in the summer and low
dissolved oxygen content (Supporting Information Figure S3).
Seasonal stratification leads to the depletion of oxygen in
bottom water during summer months and an overturning of the
water column during the falLu We hypothesize that under
oxygenated water conditions, As oxyanions would be adsorbed
onto Fe oxyhydroxides particles in the water column and
bottom sediments.26,2z During the stratification periods, when
the bottom waters become anoxic, reductive dissolution of Fe
(and Mn) oxyhydroxides results in release of dissolved As, Fe,
and Mn to the bottom water. The reducing conditions would
also convert arsenate (As(V)) into arsenite (As(ILI)), a
neutrally charged form of arsenic at pH 7 (ie., H3MO3)
that is less reactive toward sorption on oxyhydroxidesm" and
also more toxic to wildlife.30 The covariance of As with other
redox sensitive elements like Fe and Mn during thermal
stratification in Hyco Lake (Supporting Information Figure S2)
supports this model.
In contrast, selenium does not increase with decreasing
dissolved oxygen (and depth) in Hyco and Mayo Lakes, but
rather shows a linear relationship with chloride, although with a
relatively weak correlation (R2 = 0.65; Figure 4 and Supporting
Information Table SS), reflecting both dilution and retention
effects. This is consistent with the selenium species geo-
chemistry: under oxic conditions the oxidized species selenate
(Se(VI)) would be less reactive toward sorption with
oxyhydroxides and thus behave conservatively in the water
column. In contrast, under anoxic conditions the partially
reduced Se species wlenite (Se(IV)) would have a strong
sorption affinity for both oxyhydroxides31 and day miner-
als.2'33 The most reduced forms of selenium (e.g., elemental
Se° and FeSe) tend to persist as sparingly soluble minerals.
Overall, a transition to anoxic conditions in the lake
hypoliminion would result in lower dissolved Se wncen-
trations.34,35
Bottom Lake Sediments and Pore Water. In addition to
differential distribution of contaminants in the surface waters,
this study revealed elevated levels of CCR contaminants
(Supporting Information Table S6; Fe, Mn, Sr, As, Mo, Sb, Ni,
V, and Br (p < 0.01), as well as Mg and F (p < 0.05)) in shallow
&.tlde,gn0.lO211 i 0263x I EnW 5tl. Txn XXXX M xxz-XXK

Environmental Science & Technology
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Figure S. Boron and arsenic concentrations in porewater collected from upstream, outfall, and downstream sites of Hyco Lake (HL), Mayo Lake
(ML), Mountain Island Lake (MIL), and Jordan Lake. Red symbols correspond to plants with combined coal ash and FGD systems, blue for only
coal ash, and green for the reference lake (Jordan take). The EPA boron health advisory level is indicated, as well as the EPA CCC freshwater
aquatic regulatory level.
pore water extracted from the lake bottom sediments that were
significantly higher than those of the overlying bottom water.
For example, As concentrations in from Hyco,
Mayo, and Mtn. Island lakes were as high as 83, 297, and 240
µg/L, respectively, exceeding the EPA's MCL (10 µg/L) and
CCC (150 µg/L) standards (Figure 5). For comparison, the
concentrations of trace elements (B and As, p < 0.1) in pore
water from the reference lake were significantly lower than the
CCR impacted lakes (Figure 5). We hypothesize that retention
of CCR contaminants from the lake water via adsorption onto
suspended matter in the water column results m accumulation
of these contaminants in the sediments that are deposited on
the lake bottom. Recent reports of higher concentrations of As
and Se in lake bottom sediments at the outfall at Hyco and
Mayo (As, 23 µg/g and 97 µg/g; Se, 8 µg/g and 10 µg/g dry
Wight, respectively) relative to the upstream branch of the lake
(As, 6 µg/g and 12 µg/g; Se, 2 µg/g and 1.6 µg/g dry weight,
respectively)2"36 confirm that both As and Se are recycled
through adsorption and desorption due to changes in the lake
water chemistry, apparently induced from thermal stratification
during the summer. Changes in the ambient conditions (pH,
redox state) in the lake sediments would release these
metalloids to the pore water.° We documented high levels of
As in pore water and other redox-sensitive elements (Mn, Fe;
Figure 5) that confirm this model. Additionally, direct arsenic
speciation measurements show that over 82% of arsenic in the
pore water collected at Hyco and Mayo Lakes were composed
of the reduced and more mobile species arsenite (Supporting
Information Table S7). In contrast, the Se concentrations were
significantly higher in the CCR effluents and lake water relative
to the pore water (p < 0.01) (Figures 3 and 5). This indicates
that Se from CCR effluent can become associated with the
sediment, but that Se species become immobilized by forming
elemental selenium and metal —selenium complexes in the
sediment, and therefore are not incorporated into the pore
water.
Ecological and Environmental Implications. The
accumulative nature of arsenic, selenium, and other CCR
contaminants in lake systems could have ecological implica-
tions, particularly for benthic organisms and therefore the rest
of the food chain. Indeed, elevated As and Se levels were
reported in fish tissues from Hyco and Mayo lakes especially
new the NPDES outfaB 2 ,36 Furthermore, the 2010 Mayo Lake
Environmental Report16 showed deformities in some fish,
including an extended lower jaw and spinal curvature, both of
which are indicators of ingestion of high levels of Se.37 If the
base of the food chain is exposed to high levels of contaminants
through the sediment and pore water, other organisms could be
at risk if they feed on those organisms that five in the
contaminated sediments and pore water.3a3v
The impact of the effluent discharged from the NPDES
outfalls on water quality in the downstream waterways is
dependent on the Bow rate to the river/lake (i.e., dilution
effect; Supporting Information Table S4), residence time in the
water body, as well as the mobilization (e.g, adsorption/
desorption to sediment) properties of specific contaminants in
the water. For example, the outfall on the French Broad River
from the Asheville power plant had effluents with high
contaminant concentrations (Supporting Information Table
S2), but because of high river discharge Bow, the downstream
water was significantly diluted (although still detectable). A
mass -balance calculation, using boron as a conservative tracer in
surface water, show a contribution of 4.5% of CCR effluent into
the downstream river with boron concentrations of I IS µg/L.
It is important to note however, that these hydrologic systems
could vary and be greatly affected by droughts. During the
severe drought of 2007-2008 in North Carolina, the discharge
of the French Broad River decreased drastically to just over 5
1113 s 1, approximately 5 times lower than the river Bow rate
during the time of our sampling (25 m3 s h).'o Using muss_
balance calculation for conservative constituents, a 5-fold
reduction in water Bow would increase the CCR contribution
up to 2296 and would significantly increase the concentrations
of such contaminants in the downstream river (e.g., boron up
to 530 µg/L).
A .OWICURI/cOM263x I Fnv . Sd rerMal x)Wf, Xxx xXX-W

Environmental Science & Technology
Our data also show CCR discharge into smaller lakes appears
to have a greater impact relative to the larger lakes (e.g., Mayo
Lake versus Lake Norman). This impact is therefore a
combination of the volume of released CCR effluents, the
lake inflows, plant water usage (removing from the lake
system), and residence time. All of these factors can play a
major role in the lake's water quality. For instance, Hyco and
Mayo Ickes have boron concentrations of 958 µg/L and 703
µg/L, respectively compared to an upstream creek with boron
concentrations of <3 µg/L and <7 µg/L, respectively
(Supporting Information Table S2). This is a 300- and 100-
fold enrichment in the boron content in the lakes. Conversely,
Lake Norman, the largest lake in NC, 13-14 times the size of
Hyco and Mayo Lakes, had only minor difference (12 µg/L)
between its upstream the downstream boron concentrations.
We conclude the smaller lakes and hydrological systems are
more sensitive to CCR effluent contamination, particularly
during drought periods when the dilution factor in the receiving
water would be reduced. Moreover, as water regulatory
agencies encourage power plants to install recycled cooling
water systems rather than once -through cooling water as a way
to conserve water, a potential unintended consequence of this
policy is the discharge of CCR effluents with greater
concentrations of CCR contaminants.
This study shows that coal-fired power plants that discharge
their coal ash and FGD wastewaters had a significant effect on
water quality of receiving waters of North Carolina. We show
that even low concentrations of some contaminants, such as As
with concentrations below health benchmarks at the NPDES
outfall, could become problematic as As is retained in
suspended sediments and remobilized with environmental
changes in reduced bottom and pore waters. The results of this
study have significant implications for hundreds of similar sites
across the US given that CCR storage facilities continuously
generate contaminants via leaching and transport to nearby
hydrological systems. While this study focused on surface
waters near CCR facilities, groundwater may have similar
effects. Many CCR disposal ponds and landfills are not lined
and, in many instances, are neither adequately monitored, nor
regulated with respect to their effects on groundwater and
surface waters. This study highlights the need for rigorous
monitoring and clear regulations for limiting the CCR
contaminants that are being discharged into U.S. waterways.
■ ASSOCIATED CONTENT
® Supporting Information
Description of analytical techniques, additional quality control
information, geo-neferences for sampling sites, along with
supplementary graphs and figures. This material is available free
of charge via the Internet at http://pubsaa.org.
■ AUTHOR INFORMATION
Corresponding Author
*Tel: [phone]. I=: [phone]. E-mail: vengosh@
duke.edu.
Notes
The authors declare no competing financial interest.
■ ACKNOWLEDGMENTS
This research was funded by a grant from the NC Water
Resources Research Institute. We thank the NC DENR
Division of Water Quality for all of their assistance in sampling
and data collection. We also thank the French Broad
Riverkeeper and the Catawba Riverkeeper for their assistance
in sampling their respective rivers. We would also like to thank
Amrika Deonarine, Katie Barzee, Alissa White, Andrew Sturges,
Julie Ruhl, Shaniece Belcon, and Andrew Matsumoto for then
assistance in the field, Tom Darrah and Nathaniel Warner for
constructive comments, Kiril Kolev for statistics assistance, and
to Cidney Christie for the TOC image.
■ REFERENCES
(1) Steam Electric Power Gannating Point Source Category: Final
Detailed Study Report; U.S. Environmental Protection Agency:
Washington, DC, 2009; http://water.epa.gov/scitech/wastetech/
guide/upload/finalreportpdf (accessed 2012).
(2) Adrumo, D. C.; Page, A L; Elseewi, A A; Chang, A C.;
Straughan, I. Utilization and disposal of fly -ash and other coal residues
in terrestrial ecosystems —A review. 1. Enoiron, QuaL 1980, 9, 333-
344.
(3) Rohl, L.; Vengosh, A; Dwyer, G. S.; Hsu -Kim, H.; Deonarine, A;
Bergin, M.; Kravchenko, J. Survey of the potential environmental and
health impacts in the immediate aftermath of the coal ash spill in
Kingston, Tennessee. Environ. Sci. Technol 2009, 43, 6326-6333.
(4) Ruhl, L; Vengosh, A; Dwyer, G. S.; Hsu -Kim, FL; Deonarine, A
Environmental impacts of the coal ash spill in Kingston, Tennessee:
An 18-month survey. Environ. Sci. Technol 2010, 44, 9272-9278.
(5) Count of Electric Power Industry Power Plants, by Sector, by
Predominant Energy Sources within Plant, 2002 through 2010. Energy
Information Administration. http://205.2S4.135.7/elechicity/annual/
html/tables. l.cfrn (accessed 2011).
(6) 2010 Coal Combustion Product (CCP) Production and Use Report;
American Coal Ash Association: Aurora, CO, 2011; http://acaa.
affiniscape.com/wwciatiom/8003/fila/2010—CCP_Surwy_FINAL_
102011.pdf (accessed 2012).
(7) 2008 Coal Combustion Product (CCP) Production and Use Survey
Report; American Coal Ash Association: Aurora, CO, 2009; http://
www.apa-usaorg (accessed 2012).
(8) Environmental Protection Agency Website. Wastes —Non -
Hazardous Waste —Industrial Waste. bttp://www.ep&gov/osw/
nonhaz/industrial/special/fossd/coalashletter.htm (accessed 2012).
(9) Hanlon, J. Memorandum: National Pollutant Discharge Elimination
System (NPDES) Permitting of Wastewater Discharges from Flue Gas
Desulfurization (FGD) and Coal Combustion Residuals (CCR)
Impoundments at Steam Electric Power Plants; U.S. Environmental
Protection Agency: Washington, DC, 2010.
(10) Power Plant Water Usage and Loss Study; Department of
Energy:,National Energy Technology Laboratory: Washington, DC,
2007; http://www.neadoe.gm/technologies/coalpower/gasification/
pubs/pdf/WaterReport_Revised%20May2007.pdf (accessed 2012).
(11) Environmental Protection Agency Website- NPDES Permit
Program Basics: Fequendy Asked Questions. http://cfpub.ep&gov/
npdes/fags.cfm#107 (accessed 2012).
(12) Codes of Federal Regulations. Steam Electric Power Generating
Point Source Category, 1982 . http://www.Spo.gov/fdM/pkg/CFR-
2011-titie40-vol29/pdf/CFR-2011-tit1e40-vo129-part423.pdf.
(13) Energy Information Administration. Coal plants without
scrubbers account for a majority of U.S. SO2 emissions, 2011.
http://www.eia.gov/todayinenergy/detail.cfn?id=4410# (accessed
2011).
(14) Coal Combustion Waste Damage Case Assessments, U.S.
Environmental Protection Agency Report; U.S. EPA Washington,
DC, 2007; p 70.
(15) Lemly, A D.; Skoropa, J. P. Wildlife and Coal Waste Policy
Debate: Proposed Rules for Coal Waste Disposal Ignore Lessons from
45 years of Wildlife Poisoning. Environ Sc1 Tecbnol 2012.
(16) U.S. Geological Suivey. National Field Manual for the
Collection of Water -Quality Data, 2008. http://waterwgs.gov/owq/
FieldManual/indez.htmL
dx.dol.rng/1e.10311e 263x I rnvlrM. kt rRn,md)== M-lout

Environmental Science & Technology
(17) Bednar, A- J.; Garbarino, J. R.; Ranville, J. F.; Wddeman, T. R.
Preserving the distribution of inorganic arsenic species in groundwater
and acid mine drainage samples. Enron. Sci. TahnoL 2002, 36, 2213-
2218.
(18) Progress Energy Website. Air and Water Resources- Progress
Energy Carolinas. Progress Energy. https://www.pmgress-energy.
com/commitment/environment/what-we-are-doing/airandwater.page
(accessed 2012).
(19) Monthly Data Monitoring Report (DMR) for Progress Energy
Carolinas' Roxboro Steam Plant (NPDES Permit NC0003425).
Progress Energy: Raleigh, NC, 2009-2011.
(20) Monthly Data Monitoring Reports (DMR) for Progress Energy
Carolinas' Mayo Steam Electric Plant (NPDES Permit NC0038377);
Progress Energy: Raleigh, NC, 2009-2011.
(21) Environmental Protection Agency Website. EPA Environfacts:
Tonics Release Inventory Facility Reports. http://www.epa.gov/
enviro/facts/tri/search.html (accessed 2012).
(22) Lesley, M. P.; Froelich, P. N. Arsenic, selenium and antimony
from coal -feed power plants to the Chattahoochee River. 2003, 473-
476.
(23) Roxboro Steam Electric Plant 2009 Environmental Monitoring
Report (NPDES Permit NC 0003425); Progress Energy: Raleigh, NC,
2010.
(24) Roxboro Steam Electric Plant 2010 Environmental Monitoring
Report (NPDES permit NC0003425); Progress Energy: Raleigh, NC,
2011.
(25) Balistrieri, L S.; Murray, J. W.; Paul, B. The cycling of iron and
managnese in the water column of Lake Sammamish, Washington.
Limnol Occanogr. 1992, 37, 510-528.
(26) Belzile, N.; Tessier, A. Interactions between arsenic and iron
oxyhydroxides in lacustrine sediments. Geochim. Cosmochim. Acta
1990, S4, 103-109.
(27) Root, R. A.; Dmt, S.; Campbell, K M.; Jew, A. D.; Hering, J. G.;
O'Day, P. A. Arsenic sequestration by sorption processes in high -iron
sediments. Geochim. Cosmochim. Acta 2007, 71, 5782-5803.
(28) Raven, K P.; Jain, A.; Loeppert, R. H. Arsenite and arsenate
adsorption on knihydrite: Kinetics, equilibrium, and adsorption
envelopes. Environ Sri. Technol. 1997, 32, 344-349.
(29) Wolthers, IVL; Charlet, L; van Der Wegden, C. H.; van der
Linde, P. K; Rickard, D. Arsenic mobility in the ambient sulfidic
environment: Sorption of arsenic(V) and arsenic(M) onto disordered
macldnawite. Geochim. Cosmoch m. Arta 2005, 69, 3483-3492.
(30) Dukes, A. A.; Camanza, E. J. M.; Hale, M. Arsenic geochemistry
and health. Environ. Int 2005, 31, 631-641.
(31) Plant, J. A.; Kinniburgh, D. G.; Smedley, P. L; Fordyce, F. M.;
Klink, B. A. Arsenic and Seltntum; Elsevier-Pergamon: 2003, Vol. 9, pp
17-66.
(32) Bar Yossef, B.; Meek, D. Selenium sorption by kaoiinite and
montmorillonite Soil Sci 1987, 144, 12-19.
(33) Dzombak, D. A. Morel, F. M. M. Surface Complexation
Modeling —Hydrous Ferric Oxide; Wiley Publisher: New York, 1990.
(34) Peters, G. M.; Maher, W. A.; Jolley, D.; Carroll, B. L; Jenkinson,
A. V.; McOrist, G. D. Selenium contamination, redistribution and
remobilisation in sediments of Lake Macquarie, NSW. Org. Geochem.
1999, 30, 1287-1300.
(35) Bowie, G. L. Assessing selenium cycling and accumulation in
aquatic ecosystems. Water Air Soil Pollut 1996, 90, 93-104.
(36) Mayo Steam Electric Plant, 2010 Environmental Monitoring
Report (NPDES permit NC0038377); Progress Energy: Raleigh, NC,
2011.
(37) Lemey, A. D. Symptoms and implications of selenium toxicity in
fish: the Belews Lake cue example. Aquat Toxicol. 2002, 57, 39-49.
(38) Peters, G. M.; Maher, W. A.; Krikowa, F.; Roach, A. C.; Jeswani,
1L K; Barford, J. P.; Gomel, V. G.; Reible, D. D. Selenium in
sediment, pore water and benthic infama of Lake Macquarie, New
South Wales, Australia. Marine Environ. Res 1999, 47, 491-508.
(39) Rowe, C. L; Hopkins, W. A.; Congdon, J. D. Ecotordcological
Implications of Aquatic Disposal of Coal Combustion Residues In The
United States: A Review. Environ. Monit Assess 2002, 80, 207-276.
(40) US Gelogical Survey. USGS Gage 03447687 French Broad
River Near Fletcher, NC (accessed 2012).
tla.tlai.o,g/10.1m1/ns3032fi3x FnWron. 5a Te na xODL )= M-xxx