NC0001422_Major Modification 1998_19981019

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality -
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
ATx.;VA
loom
NCDENR
October 19, 1998
Mr. Cecil Rowland
CP &L Company- Sutton
801 Sutton Steam Plant Road
Wilmington, North Carolina 28401 -8357
Subject: NPDES Major Modification
Permit No. NC0001422
CP &L- Sutton Steam Electric
New Hanover County
Dear Mr. Rowland:
The subject individual NPDES permit issued on July 31, 1996 has been modified
as per your request. Please find attached the modified sections of this permit, and replace
the old pages with the modified pages. This permit modification is issued pursuant to the
requirements of North Carolina General Statute 143 -215.1 and the Memorandum of
Agreement between North Carolina and the U.S. Environmental Protection Agency dated
December 6, 1983 (and as subsequently amended).
The following monitoring requirements for Outfall 001 have been modified, based
on the Division's review of your letter request dated May 19, 1998, as well as additional
comments dated September 2, 1998:
• Effluent monitoring for selenium and copper has been changed from Quarterly to
Monthly, effective after an Engineer's Certificate is received for the construction
of the Outfall 004 pipe rerouting.
• Flow measurement method has been changed from Elevation Storage Curve to
Estimate.
• Total Residual Chlorine monitoring has been changed from Daily to Weekly.
• The Supplement to Permit Cover Sheet has been modified to allow up to 2.5
MGD (on a monthly average basis) of ash pond effluent to be variably routed
from internal Outfall 004 directly to Outfall 001.
In addition, the following monitoring requirement has been added:
• Part III, Special Condition L. Fish Monitoring To Evaluate the Rerouting of Ash
Pond Effluent. This special condition requires fishery monitoring in the Cape
Fear River to evaluate the rerouting of effluent from Outfall 004 to Outfall 001.
Please note that this permit expires on June 30, 2001. When you submit a permit
renewal application, please describe in detail the current selenium condition in Sutton
P.O. Box 29535, Raleigh, North Carolina 27626 -0535 Telephone 919 - 733 -5083 FAX 919 - 733 -0719
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post- consumer paper

Lake, so that the Division can best determine whether the trial water quality management
approach needs to be extended.
If any parts, measurement frequencies or sampling requirements contained in this
permit modification are unacceptable to you, you have the right to an adjudicatory
hearing upon written request within thirty (30) days following receipt of this letter. This
request must be in the form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the office of Administrative Hearings,
Post Office Drawer 27447, Raleigh, North Carolina 27611 -7447. Unless such a demand
is made, this permit shall be final and binding.
Please take notice that this permit is not transferable. Part II, E.4. addresses the
requirements to be followed in case of change in ownership or control of this discharge.
This permit does not affect the legal requirements to obtain other permits which
may be required by the Division of Water Quality or permits required by the Division of
Land Resources, Coastal Area Management Act, or any other Federal or Local
governmental permits may be required.
If you have any questions or need additional information, please contact Mr. Tom
Belnick, telephone number (919) 733 -5083, extension 543.
Sincerely,
Original Signed By
David A Goodrich
A. Preston Howard, Jr., P.E.
cc: Central Files
i Regional Office, Water Quality
ESB, Biological Assessment Unit (Trish MacPherson, Mark Hale)
Point Source Compliance/Enforcement Unit
Mr. Mick Greeson,
CP &L Company
Harris Energy and Environmental Center
3932 New Hill - Holleman Road/P.O.Box 29535
New Hill, North Carolina 27562 -0327

Permit No. NC0001422
SUPPLEMENT TO PERAUT COVER SHEET
Carolina Power and Light Company
is hereby authorized to:
1. Continue to discharge cooling pond blowdown, recirculated cooling water, non-
contact cooling water, and treated wastewater from internal outfalls 002, 003, and 004
(via external outfall 001); coal pile runoff, low volume wastes, ash sluice water, and
stormwater runoff (outfall 002); chemical metal cleaning waste (outfall 003); and ash
sluice water, coal pile runoff, low volume wastes, and stormwater runoff ( outfall 004)
at a facility located at Sutton Steam Electric Plant, 801 Sutton Steam Plant Road,
Wilmington, New Hanover County, and
2. Construct and operate, after receiving an Authorization to Construct, an optional
effluent pipe routing system that will variably route up to 2.5 MGD (on a monthly
average basis) of ash pond effluent from internal Outfall 004 directly to Outfa11001,
and
3. Discharge wastewater (via Outfa11001) from said treatment works at the location
specified on the attached map into the Cape Fear River, which is classified C -Swamp
waters in the Cape Fear River Basin.

.
A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL Permit No. NC0001422
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number
001(cooling pond blowdown, recirculation cooling water, non - contact cooling water, and treated wastewater from Internal outfalls 002, 003, and 004).
Such discharges shall be limited and monitored by the Permittee as specified below:
I`FI:U�NT �11A�`tIrRISTiC� � L�IiVII�`T� : k
Itll Ft C�1IrQ 11 =1Ut1r T�
Mdiitlil�i MeftiWrditJ1it 3 Samp
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Flow Daily Estimate E .
Temperature2,3 Daily Grab E,U,D
Total Residual Chlorine4 200 ug /l Weekly Grab E
Time of Chlorine Addition (min /day /unit) 120 Daily Logs
Total Coppers NL (ug /I) Monthl��5 Grab E `
Total Selenium5 NL (ug /1) Monthly5 Grab E
Total Arsenic NL (ug /1) Quarterly Grab E
Total Iron NL (ug /I Quarterly Grab E
Total Nitrogen (NO2 + NO3 + TKN) NL Annually Grab E
Total Phosphorus NL �mg/')
mg /1) Annually Grab E
Acute Toxicity6 Monthly Grab E
PH7 Daily Grab E L
Notes:
1. Sample locations: E - Effluent, U — Upstream, 2700 -ft above outfall, D- Downstream, 1.25 -miles below outfall.
2. The receiving water's temperature shall not be increased by more than 2.8 °C above ambient water temperature and in no case exceed 32 °C; except in the
mixing zone described as follows: Extending frorn the eastern shore to the centerline of the river and extending not more than o 1.25 miles downstream nor
more than 2,700 -feet upstream from the point of discharge. The cross - sectional area of the mixing zone shall not exceed 9.0% of the total cross - sectional
area of the river at the point of discharge nor 2.5% at the mouth of Toomer's Creek.
3. Instream monitoring requirements (sample locations U,D) are waived as long as the Permittee maintains membership in the Lower Cape Fear River
monitoring coalition. Refer to Part 111, Condition K.
4. Total Residual Chlorine may not be discharged from any single generating unit for more than two hours per day, Unless the Permittee can demonstrate to
the Division of Water Quality that discharge for more than two hours is required for macroinvertebrate control. Simultaneous multi -unit chlorination is
permitted.
5. Monthly monitoring shall become effective after an Engineer's Certificate is received for the construction of an optional pipe rerouting of ash pond effluent
from internal outfall 004 to outfall 001. UntTtFFe monthly frequency becomes effective, the measurement frequency shall be quarterly.
6. Acute Toxicity Monitoring (Fathead Minnow, 24 -hr); see Part III, Condition E.
7. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
NL = No Limit
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Permit No. NC0001422
PART III
OTHER REQUIREMENTS
L. FISHERY MONITORING TO EVALUATE THE REROUTING OF ASH POND EFFLUENT
Prior to pipe rerouting of ash pond effluent from internal outfall 004 to external outfall 001, a
fish monitoring plan will be prepared, and baseline fishery data will be collected in the Cape Fear
River. Fish tissue analysis will be performed, at a minimum, at one station established upstream
of external Outfal1001 discharge and at two stations located downstream of the discharge.
Monitoring will be performed in accordance with the monitoring plan submitted to and approved
by the Division of Water Quality. This monitoring plan will be an enforceable part of this
NPDES permit. All contaminant data collected as part of this monitoring requirement will be
reported within four months after sample collection. Fish tissue analysis will be performed
annually during the permit cycle. Should fish tissue levels indicate concentrations of concern,
the Division may require additional collection of environmental data.

C P &L
Carolina Power & Light Company
Sutton Plant
801 Sutton Steam Plant Road
Wilmington NC 28401 -8357
Mr. David A. Goodrich
NPDES Supervisor
North Carolina Department of Environment and Natural Resources
Division of Water Quality
P.O. Box 29535
Raleigh, North Carolina 27626 -0535
Subject: NPDES Permit No. NC0001422
CP &L Sutton Steam Electric Plant
Permit Modification
Dear Mr. Goodrich:
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September 2, 1998
CA
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In response to the draft modifications to the subject NPDES permit proposed by
the Division of Water Quality by letter of August 13, 1998, Carolina Power & Light
Company offers the following comments.
1. Supplement to Permit Cover Sheet - Item #2 authorizes CP &L to route up to 2.5
MGD of ash pond effluent to outfall 001. Since this optional effluent routing will be
somewhat experimental, it is anticipated that the volume of flow that will be routed to
outfall 001 from internal outfall 004 will average approximately 2.5 MGD. The 2.5
MGD will not necessarily be a maximum flow. Maximum flows could be higher
depending on the conditions of the cooling pond and the hydraulic control of the
facilities. Consequently, we request that the maximum restriction of 2.5 MGD be
removed. In order to accomplish this we recommend the phrase "up to 2.5 MGD of "
be deleted.
2. Part I A (1). - The authorization language needs to be amended to recognize that the
new measurement frequencies for Copper and Selenium are not in effect unless and
until the rerouting of ash pond effluent becomes operational. This recognition can be
accomplished in one of several ways. Probably the most efficient way would be to
reference a footnote or a Part III Other Requirement that qualifies the effective date of
the monthly measurement frequency. A footnote example is presented below.
i✓
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.spec r�
o�ake

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Monthly 7
7. This monitoring requirement shall become effective beginning the
calendar month following the completion of the optional rerouting of
the ash pond effluent from internal outfall 004 to outfall 001 and the
submittal of the certification of completion. Until the monthly frequency
becomes effective, the measurement frequency shall be quarterly. If the
lithe ptional rerouting of the ash pond effluent is halted for an extended
mj,gi, eriod of time, the Division shall be so notified and the measurement
MR requency at outfall 001 may revert to quarterly until the rerouting of
ash pond effluent is resumed.
3. Part I A (1).- The sample type for Flow should be modified. Once the ash pond
effluent is optionally routed to outfall 001, the resulting combined flow at 001 will be
measured using a combination of: 1) the current method of Elevation Storage Curve
at the release gates from the lake, 2) a measurement device at internal outfall 004 and
3) a measure device in the conveyance line from 004 to 001. To recognize these M
measurements it is recommended that the sample type be changed from "Elevation A io ES
Storage Curve" to either "Estimate" or "Calculated." Also by switching to the term
"Estimate" or " Calculated" there will not be the need to footnote this sample type as
in comment #2 above since the term "Estimate" or "Calculated" can be representative
of all flow monitoring scenarios regardless of the status of the rerouting of the ash
pond effluent.
4. Part I A(1). - Our interpretation of the term "Total Copper" and "Total Selenium" (as -rrae
well as the other "total" metals) is that "Total' means Total Recoverable. Please
inform us if this is not accurate.
5. Part III L. - We believe that placing explicit requirements in the permit for a fishery
monitoring program maybe administratively le. For example, if we find
out later in the monitoring program t at data reported within three months
after sample collection for some reason such as laboratory turnaround time, we would
be in violation of the permit or the permit would have to be modified. We believe it
would be more urr.%jr.iate for the permit to have just the requirement to develop,
submit for approval and implement the approved monitoring plan. We recommend V
Part III L. be rewritten as follows:
Prior to the operation of the rerouting of ash pond effluent from internal
outfall 004 to external outfall 001, a fash monitoring plan will be prepared
and submitted to the Division of Water Quality (DWQj for approval.
Once approved the plan will become an enforceable part of this NPDES
permit, although plan modifications may be allowed with prior approval
of the DWQ. Should information developed from the monitoring plan

indicate reasons for concern, the DWQ may require additional collection
of environmental data.
As always we appreciate the Division's cooperation and attention. If there are any
questions please contact Rick Yates at (919) 362 -3571 or Fred Holt at (919) 362 -3558.
Sincerely,
Cecil Rowland
Plant Manager
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L.I. Cooper
F.T. Holt
W.R. Garrett
M.R. Greeson
J.W. Griffith
B.L. Moorefield
M.A. Norton
C.C. Wheeler
B.C. White
R.C. Yates
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A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
Permit No. NC0001422
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number
001 (cooling pond blowdown, recirculation cooling water, non - contact cooling water, and treated wastewater from internal outfalls 002, 003, and 004).
Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly Weekly Daily Measurement
Sample Sample
Average Average Maximum
Frequency
Type Locations
I
Flow
Daily
Elevatiofi4;Mtl s E
Storage Cu ''`*!
Temperature2,3
Daily
Grab E, U, D
Total Residual Chlorine4 200 ug /I
Daily Vi)aA
Grab E
Time of Chlorine Addition (min /day /unit) 120
Daily d
Logs
Total Copper � NL (ug /1)
Monthly' I
Grab E
Total Selenium NL (ug /1)
Monthly-
Grab E
Total Arsenic NL (ug /1)
Quarterly
Grab E
Total Iron NL (ug /1)
Quarterly
Grab E
Total Nitrogen (NO2 + NO3 + TKN) NL (mg /1)
Annually
Grab E
Total Phosphorus NL (mg /1)
Annually
Grab E
Acute Toxicity5 °'
Monthly
Grab E
pH& rs
Daily
Grab E
Notes:
1. Sample locations: E - Effluent, U — Upstream, 2700 -ft above outfall, D- Downstream, 1.25 -miles below
outfall-
2. The receiving water's temperature shall not be increased by more than 2.8 °C above ambient water
temperature and
in no case exceed 32 °C, except in the
mixing zone described as follows: Extending from the eastern shore to the centerline of the river and extending not more than 1.25 miles downstream nor
more than 2,700 -feet upstream from the point of discharge. The cross - sectional area of the mixing
zone shall not exceed 9.0% of the total cross - sectional
area of the river at the point of discharge nor 2.5% at the mouth of Toomer's Creek.
3. Instream monitoring requirements (sample locations U,D) are waived as long as the Permittee maintains membership in the Lower Cape Fear River
monitoring coalition. Refer to Part III, Condition K.
4. Total Residual Chlorine may not be discharged from any single generating unit for more than two hours per day, unless the Permittee can demonstrate to
the Division of Water Quality that discharge for more than two hours is required for macroinvertebrate control. Simultaneous multi -unit chlorination is
permitted.
Acute Toxicity Monitoring (Fathead Minnow, 24 -hr); see Part III, Condition E.
7B. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
NL = No Limit
There shall be no discharge of floating solids or visible foam in other than trace amounts.
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Re: dR&L Sutton, NC0001422
Subject: Re: CP &L Sutton, NC0001422
Date: Mon, 05 Oct 1998 07:59:22 -0400
From: "Mark Hale" <[e-mail]> Internal
To: Tom Belnick <tom [e-mail]>
CC: Trish MacPherson <trish [e-mail]>
6pn in &IL4
tom:
i have recommended that we keep the study specifics as generic as possible
in the permit, with a statement that they would come up with a plan
subject to our approval. ass for the time frame, unless they forsee
problems with turnaround in their lab, i think 3 months is appropriate.
call me if you have further questions.
Tom Belnick wrote:
• Do you remember the recent NPDES major mod for Sutton Steam, where we
• requested some fishery monitoring be performed? The only comments we
• received after 30 -day Public Notice were from CP &L. One of their
• comments questioned whether we need to keep in the requirement for all
• fish tissue contaminant data being reported within 3 months of sample
• collection. They would prefer that the permit language said to
• implement plan after DWQ approval, without a specific deferable date.
• Personnally, I would have thought that this 3 -month timeframe would be
• more than sufficient for a commercial lab to turnaround. Any
• thoughts /comments?
• [e-mail]
• N.0 DENR - DWQ / NPDES Unit
• P.O.Box 29535, Raleigh NC 27626 -0535
• Work: (919) 733 -5083 ext. 543
• Fax: [phone]
Mark T. Hale
NCDWQ Environmental Sciences Branch
4401 Reedy Creek Road
Raleigh, NC 27607
Phone: [phone]
Fax: [phone]
I of 1 10/13/98 4:57 PM

Re: CP &L Sutton, NC0001422
Subject: Re: CP &L Sutton, NC0001422
Date: Thu, 01 Oct 1998 08:30:18 -0400
From: "Trish MacPherson" <trish [e-mail]> Internal
To: Tom Belnick <tom [e-mail]>
I think you are right about the commercial lab, the problem is with CP &L.
Right now we get most of their Environmental reports a year to a year and
a half after sampling. Since this is a small dataset -it is only fish
tissue data we're asking for isn't it? -they should be able to get us a
letter with results in 3 months. However, right now the way we deal with
environmental monitoring at their other plants is for them to send us a
study plan each year, which we approve or ask for changes. If we did the
same for this (what they seem to be asking for), but also required a firm
date on getting the data, would that have the same regulatory weight as
putting it in the permit? If not, I say put it in the permit and let them
get used to doing things-a new way. a
Tom Belnick wrote:
• Do you remember the recent NPDES major mod for Sutton Seam, where we
• requested some fishery monitoring be performed? The only comments we
• received after 30 -day Public Notice were from CP &L. One of their
• comments questioned whether we need to keep in the requirement for all
• fish tissue contaminant data being reported within 3 months of sample
• collection. They would prefer that the permit language said to
• implement plan after DWQ approval, without a specific delerable date.
• Personnally, I would have thought that this 3 -month timeframe would be
• more than sufficient for a commercial lab to turnaround. Any
• thoughts /comments?
• tom_belnick @h2o.enr.state.nc.us
• N.0 DENR- DWQ /NPDES Unit
• P.O.Box 29535, Raleigh NC 27626 -0535
• Work: (919) 733 -5083 ext. 543
• Fax: [phone]
1 of 1 10/1/98 1:01 PM

NCO077607
NOTES FOR NORTH WILKESBORO DRAGWAY
PERMIT RENEWAL (NCO077607)
Wastewater discharge from North Wilkesboro Dra ay (North Wilkesboro, Wilkes
County) to UT to Naked Creek in the Yadkin Basin. ,
15A NCAC 213.0300 Index # 12- 31- 3 -(2): N *ed Cr claskied as WS -IV in 8/3/92.
BAB -
ATC Information: \
• 6/25/90 AT issued for 0.015 MGD astewater treatme facility. When did plant
expand to d ble that capacity( rmit)? WLA done / 17789 indicated a capacity
of 0.030 MG, . ragway expande seating capacity an based design on peak
attendance of 60 people. I thi ATC reflects what a permitted flow ought to be.
Basinwide Plan Inform Lion:
• Water quality in the up er Y
kin River at Patterso and Wilkesboro has improved
over the last decade, but a
mentation continues o be an issue. This discharge is
in the center portion of th
ad watershed.)
• Nearest ambient station (
121000) is downstre of the W. Ke Scott Reservoir.
Streams in this area, as ell
s the Reservoir, ar supporting their uses. The North
Prong of Lewis Fork an uppe portion of the So th Prong are affected by
sedimentation.
Correspondence:
• 1 NOV issued in
• 1997 Compliance
1996 calendar y
also noted as ab
BOD5 daily m
violations in J
for a BO
e . Facility was
ormally high for
violations, one T;
v '96.
DMR Review:
• Flows typic y 0.0001 - 0.0002 M
• TSS fluctua s, normally < 10 m
• BOD5 level usually < 15 mg /l.
• Fecal colifo < 1 / 100 ml. Fecal
• TRC repo d as <100 µg /l and 4
in October_ Then in 1997, 50 µ
• Temperati tres normally 23 -24 of
• Ammonia usually between 10-Al
and TSS violation in July (BOD 64 mg /1... ?).
rt noted no ischarge for a large rtion of the
apparently p for sale. July 196 vi lations were
pny treatm%4:nt facility. Noted thatlthere were 3
PS daily ma-c violation, and 2 Fecal daily max
1, unless non- compliant.
!corded as .'.90/ 100 ml in July '97.
)0 µg /1 in J.ily `96, but 0.2 -0.4 µg/ later that year
1. This seems strange; units inco ect?
29 OC in Ju'.y `97.
mg /1, unlesis non - compliant.
General Co meats:
Design c acity appears be 0.015 MGD, no 0.030 MGD, permit should
reflect this Actual flows/are significantly less.
Ammonia calc ions based on 0.015 MGD indic t an ammonia limit of
5.7/15.4 mg /1 (S /W) is appropriate to protect against toxicity; however, policy is to
leave limits unchanged for existing dischargers.
Expiration date to be assigned to this permit is September 30, 2003.

i Cowlya
CprL- J:,"M -SkAI" Communications Record
Tom Belnick, NPDES Unit
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Re: CP &L Sutton Steam Electric Plant- Permit Mod- NC0001422
Subject: Re: CP &L Sutton Steam Electric Plant- Permit Mod- NC0001422
Date: Sun, 31 May 1998 21:28:28 -0400
From: "Charles Weaver" <charles _weaver @h2o.enr.state.nc.us> Internal
To: Tom Belnick < tom _belnick @h2o.enr.state.nc.us>
Dave's quote to me was "get $100 from CP &L" - we're doing this one as a
major mod.
I didn't know about the Weyerhaeuser change or I would have asked him about
it, for consistency's sake....
Handle it as a minor mod for now. CP &L will be sorely pissed if I come
back asking for $300 more, having called once to get the $100.
Thanks, Tom
CHW
Tom Belnick wrote:
• Charles- I just wanted to confirm that we are calling this action a
• minor mod rather tham major mod with Public Notice. This action seems
• similar to a Weyerhaeuser request that Dave called a major mod (perhaps
• just because it was in the Neuse ?).
• PS- Per your request, I am working on the following mods:
• NC0001422 CP &L- Sutton Steam- minor mod
• NCO022071 Norfolk Southern Corp- minor mod
• NC0003191 Weyerhaeuser New Bern- major mod (may wait until permit
• renewal)
Y4 q/l A
IMCr or V �tin0� ��f'l $�A�
.)
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r (/W
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1
1 of 1 6/1/98 11:28 AM

CSB
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Sutton Fish Tissue insert
Subject: Sutton Fish Tissue insert
Date: Thu, 30 Jul 1998 13:14:14 -0400
From: "Mark Hale" <mark [e-mail]> Internal
To: tom [e-mail]
CC: Trish MacPherson <trish [e-mail]>
Tom:
here is a generic insert for the Sutton Lake permit to use as a
starting point. let me know if you have comments or questions. i'll be
out on vacation next week so please direct your questions to trish
during that time . thanks
Mark
Mark T. Hale
NCDWQ Environmental Sciences Branch
4401 Reedy Creek Road
Raleigh, NC 27607
Phone: [phone]
Fax: [phone]
Name: suttonFT.doc
F)suttonFT.doc Type: Microsoft Word Document (application/msword)
Encoding: base64
Fish tissue analysis will be performed, as a minimum, at one station established upstream
of the discharge and at two stations downstream in accordance with the Division of Water
Quality approved monitoring plan. The monitoring plan is an enforceable part of this
permit. All contaminant data collected as part of this monitoring requirement will be
reported within three months after collection. Fish tissue analysis will be performed
annually during the permit cycle. Should fish tissue levels indicate concentrations of
concern, the Division may require additional collections of data.
1 of 1 7/30/98 1:20 PM

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
AYI.9?F'j
IT
4
DEN R
Facsimile Cover Sheet
To '&tf =,V- C -------- - - - - --
Fax: --- _Z� .' p=------- - - - - --
From: rom 6 (919) 733 -5083 extension __&yj-I
Fax: [phone]
pages, including this cover sheet.
Comments:
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aft )b ^9001
(P//Pjj e." &L
P.O. Box 29535, Raleigh, North Carolina 27626 -0535 Telephone [phone] FAX[phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 109/6 post - consumer paper

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
June 19, 1998
MEMORANDUM
To: Mark Hale, ESB
Trish McPherson, ESB
Through: David Goodrich, NPDES
From: Tom Belnick, NPDES, 733 -5083, ext. 543
Subject: Major Permit Modification Request
CP &L- Sutton Steam Electric Plant
NPDES Permit No. NC0001422
A4
I* ; 1111111111111111116
NCDENR
Currently, CP &L discharges wastewater to an ash pond, which then flows through Sutton Lake prior to discharge
to the Cape Fear River. As a result of selenium buildup in fish tissue collected from Sutton Lake, CP &L is
requesting a permit mod to reroute their discharge directly to the Cape Fear River on an interim basis, until
selenium fish tissue levels have decreased to safe levels. I am enclosing copies of 1) the CP &L mod request
dated 5/19/98; and 2) handouts provided by CP &L at a meeting held with environmental groups at the Wilmington
Regional office on 5/13/98.
Mark- I indicated to you over the phone that the UNC- Wilmington staff at the 5/13 meeting questioned whether fish
tissue sampling in Cape Fear River would be appropriate for evaluating this mod; due to transitory nature of the
fish and tidal influence, they wondered whether sediment collection /analysis might be more appropriate. Please
review the enclosed documents and consider what type of Sampling Special Condition we might want to put in
the modified permit. NPDES will try to respond to this request fairly quickly; would it be possible to send me your
comments /suggestions by June 31? I appreciate any input you can provide. Feel free to call with any questions.
cc: NPDES file
P.O. Box 29535, Raleigh, North Carolina 27626 -0535 Telephone 919 - 733- 5083/FAX 919 - 733-0719
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post - consumer paper

. ....... ...... —COMM. JOURNAL.— DATE JUL -17 -1998 TIME 0904 P.1
MODE - TRANSMISSION START- JLL -17 0902 END- JLL -17 0904
FILE NO.- 361
NO. COM ABBR.NO. STATION NAME/
TELEPHONE NO.
01 OK 97339959
PAGES PRG.NO. PROGRAM NAME
—DEM WATER QUALITY SECTION —
Uld
919 733 9919—
I

/ AFFIDAVIT OF PUBLICATION
STATE OF NORTH CAROLINA,
COUNTY OF NEW ELANOVER
1. NPDES No. N00001422. Carolina
Power and Ught Company. RL 1. Box
327, New HUI, NC 27562 has a�ied `vk�� • rr��%�
for a permit modification fora' °silty (u� Note Public
located at Sutton Steam Electric n
Plant, on US Highway 421 north of
1Mlminglon, New Hanover County.
This modification will provide an op- M commission a ircs 1ST day of AUG 2003
Uonw routing of ash pond efnuerH Y expires
Y
_ directly to ounall 001. The facility dis-
drrggees cooling pond blowdown, rE
rgulated cooling water, and noncon-
tact cooling water from ounall 001;
coal pile ninon, and low volume Ifiidavit with the advertisement thereto annexed it is adjudged by the Court that the said publication was duly and properly
A4
from outfa1 002; metal dean -
a mwastes from outfaIf �o3; and ash been duly and legally served on the defendant(s).
sluice water, coal pile naafi, and tow
volume wastes from ounall 004 Into the Cape Fear River, a Class C-
Swamp stream in the Cape Fear RN-
T or Basin w hksh has a 7010 flow cf _, 19
1139.0 ds. No parameters are water
quality limited. but this i ge may
affect tin
Clerk of Superior Court
MAIL TO:
Before the undersigned, a Notary Public of said County and State,
' PUBLIC NOTICE
STATE OF NORTH CAROLINA
... ENVIRONMENTALv N .4
JULIE JONES
ANAGEMENT COMMISSION
who, being duly sworn or affirmed, according to the law, says that he /she is
POST OFFICE BOX 2M3 J
RALEIGH, WORTH CAROUNA
CLASSIFIED ADVERTISING MANAGER
- .MyV626I1C9G r 1'
NOTIFICALTIIOVGNVOVFF IIJNTENT •TO
of THE WILMINGTON STAR -NEWS, INC., a corporation organized and doing business under the
ISSUE A STATE NPDES PERMIT
Laws of the State of North Carolina, and publishing a newspaper known as WILMINGTON
l�n - t>s'A staff review
Chap-
MORNING STAR & SUNDAY STAR -NEWS in the City of Wilmington
and ap location of a 21 of
General ofslorlh..
_w _t _Statutes
Carolina, Public Law 92 -500 and oth-
_
er lawful smrwards and regulations.
PUBLIC NOT I GESTATE OF NORTH CA
North msin ronn
Management Comiso Proposes
ROL I NAENV.I ROtNMENTAL MANAGEMENT
to issue a to discharge to the
persons lsted below effectly€
COMMISSIONPOST OFFICE BOX 295
gr2&9a end subject to spedal oora-
tions.
NPDES PERMIT
Perso comment upon or
ns
none are invited to submll same h
was inserted in the aforesaid newspaper in space, and on dates as follows:
;ng to the above address no later
than 9/28198. NI comments received
prior to that dais will be considered In
the torrratatign of final determine -
dons regardng the proposed permit.
A public rrteetlnp may be held ��
the Director D_Iarh_
6/13, 1 X 1998
afnelhgee
rdr �degManagement
e of public lalerest in
proposed permit.
A cq of the draft permit is avanable
by wrmrrg or calling the Division of
ronmental Management, >P.O.
Box 29535, h, Flortlt oerosrra
27tt26-0a35, (at8 733 7o
and u the time of such publication Wilmington Star-News was a newspaper meeting all the
1. _ ': ,
requirements and tpwlifiadons prescribed by Sec. No. 1 -597 G.S. of N.C.
The application and other Irdoimatlan
may be Inspected at these locattorts
during normal office hours. Copies of
to kwormatim of me upon request and paym�ent/r
costs of reproduction. An stidr com-
ments or requests regarding a pro-,
posedpertn it should make reference
sire PN DES number listed
to permit
below.',
CLASSIFIED ADVER . MGR
.:•....�;...
i Athgust to, 1988
Title 14TH
Sworn or affirmed to, and subscribed before me, this day
- David A. Goodrich
for A. Preston Cloward' p, .PtoE.
Mvision of
Environmental
oAUG A.D., 19 9d -
Pudic notice of intent to issue a Sure
In Testimony Whereof, I have hereunto set my hand and affixed my official seal, the day and
NPDES permit to 00 "Owkq:
year aforesaid.
1. NPDES No. N00001422. Carolina
Power and Ught Company. RL 1. Box
327, New HUI, NC 27562 has a�ied `vk�� • rr��%�
for a permit modification fora' °silty (u� Note Public
located at Sutton Steam Electric n
Plant, on US Highway 421 north of
1Mlminglon, New Hanover County.
This modification will provide an op- M commission a ircs 1ST day of AUG 2003
Uonw routing of ash pond efnuerH Y expires
Y
_ directly to ounall 001. The facility dis-
drrggees cooling pond blowdown, rE
rgulated cooling water, and noncon-
tact cooling water from ounall 001;
coal pile ninon, and low volume Ifiidavit with the advertisement thereto annexed it is adjudged by the Court that the said publication was duly and properly
A4
from outfa1 002; metal dean -
a mwastes from outfaIf �o3; and ash been duly and legally served on the defendant(s).
sluice water, coal pile naafi, and tow
volume wastes from ounall 004 Into the Cape Fear River, a Class C-
Swamp stream in the Cape Fear RN-
T or Basin w hksh has a 7010 flow cf _, 19
1139.0 ds. No parameters are water
quality limited. but this i ge may
affect tin
Clerk of Superior Court
MAIL TO:

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0001422
JN'acinv lntormathon
Selenium, Cropper Ash pond effluent will be
frequency from Quarterly to
Facility Name
CP &L- Sutton Steam Electric Plant
Permitted Flow:
NA
Facility Class:
Facility /Fermat Status:
Mayor Mod
(i.e. New, Modification,
Existing or Renewal)
County:
New Hanover
"Stream (. haracterjstics <
Receiving Stream:
gape Fear Kiver
Stream Crlassitication:
U Swamp, -
Subbasm:
03U611 (Crape rear River Basin)
Drainage Area (mil):
I idal
Summer 7Q1U (cts)
NA
winter -/Q I U (cis):
NA
3UQ2 (cts):
NA
Average Flow (cts):
NA
1 WC ( °I0):
Y y,
..1...t'.
-.
� .
scellaneous R . r
Sal yyp$. ; %ac: �i '.
A , t .. -.. . .tYn , .`Y ✓4Z.m. ..F
. t - ..- -, .. _ y 4' ` =_ N ,.:. L. t, :
Regional Office:
I Wilmington
U SUS Topo (quad:
i J V S W
Changes Incorporated into Permit Modification
Proposed C:hanges'` „µ 0.Yarameters�Aiiected e�iasis'ytor.c hap ge(s)
Increase monitoring
Selenium, Cropper Ash pond effluent will be
frequency from Quarterly to
rerouted to 001; RPA
Monthly
indicates copper will be close
to exceeding allowable eff
conc., while there is less
concern for selenium. Both
should be monitored more
frequently since there will
now be a continuous
discharge rather than episodic.
Add Special Condition L:
Part 111 ESB recommends annual fish
Fish Monitoring to Evaluate
Special Conditions monitoring to evaluate any
the Rerouting of Ash Pond
impacts from outfall 004
Effluent.
reroute.
NC0001422
Summary
The current permit for CP &L- Sutton Steam Electric Plant- was issued in July 1996 and
expires in June 2001. The facility has 4 permitted outfalls; Outfalls 002, 003, and 004
are internal outfalls which discharge to a cooling pond (a.k.a. Lake Sutton), while

Outfall 001 (Cooling Pond Discharge Spillway) represents the combined
(002 +003 +004) external discharge to the Cape Fear River (see Attachment 1). CP &L
keeps Lake Sutton open to public fishing, and recent data has shown a buildup of
selenium in fish tissue. The elevated Se levels are the result of long -term discharge of
ash pond effluent from internal Outfall 004 into Lake Sutton. CP &L requested a permit
modification for a trial water quality management approach to prevent a Se- induced
fishery decline and to maintain Sutton Lake for public fishing. CP &L proposes the
installation of an optional route for directing some or all of the flow from the ash pond
(internal Outfall 004) to external Outfall 001, since Se would not concentrate in the river
water as it does in the cooling pond (Lake Sutton).
1996 WLA and Current Permit Conditions. The last WLA was completed in 2/96 to
support permit renewal. Relevant portions of this WLA and subsequent permit include:
• External Outfall 001. Discharge is episodic occurring 1 -2 times/year at up to 250
MGD for 1 -5 days. Quarterly monitoring required for copper, iron, arsenic, and
selenium, as well as monthly acute toxicity monitoring (Fathead Minnow 24hr).
• Internal Outfall 004. Discharges ash sluice water, coal pile runoff, low volume
wastes, and stormwater runoff to cooling pond; quarterly monitoring required for
total arsenic and total selenium, and EL limits for O &G and TSS.
• All permit limits were EL -based. There was an RPA conducted for Outfall 004 data,
using a QW= 250 MGD and 7Q10 = 1139 cfs. Evaluated parameters were: As, Se,
Cu, Fe.
Proposed Permit Modification. The proposed mod would initially route
approximately 2.5 MGD of ash pond effluent (which represents current discharges from
Outfall 004) directly to Outfall 001, where it would be discharged to the Cape Fear
River with a continuous cooling pond blowdown of approximately 12.5 MGD (total Q=
15 MGD). CP &L felt the continuous 12.5 MGD flow would aid circulation and purging
of lake system, allowing more make -up water to be added. In the future, CP &L
anticipates that flows of ash pond effluent at internal Outfall 004 will be variably routed
to the cooling pond or to Outfall 001, in order to maintain a safe Se level in the cooling
pond. On an intermittent basis (e.g., monthly) blowdown from the cooling pond to the
river may reach approx. 350 MGD for a 1 -2 day period. (Note: According to Rick Yates
of CP &L, one reason the facility has increased the blowdown cycle from 1996 to present
is to allow more nutrient -laden river water to enter lake system via make -up water, per
request from State Wildlife Resource staff to increase lake productivity). CP &L also
proposes to enhance the control of pH of the ash pond sluice water, by installing caustic
soda injection systems on the ash sluice pipelines which transport the ash water slurry to
the ash pond.
Toxicant Evaluation for Major Mod. Based on the CP &L proposal, a toxicant
evaluation of Qw=15 MGD discharge through Outfall 001 (composed of 2.5 MGD of
ash pond effluent and 12.5 MGD of cooling pond blowdown) was conducted for arsenic,
selenium, and copper. For conservatism, a 7Q10 flow = 735 cfs was used(per CP &L)
rather than a flow of 1139 cfs (per 96 Toxicant Analysis by Modeling Group). At the
proposed combined discharge of 15 MGD, the following mass balance model results
were attained (also see Attachment 2):
• Arsenic: Predicted combined eff conc (11.5 ug/1); allowable eff conc (1630 ug/1);
Conclusion: no toxicity problem predicted.
• Selenium: Predicted combined eff conc (29.7 ug/1); allowable eff conc (163 ug/1);
Conclusion: no toxicity problem predicted.

I
r
• Copper: Predicted combined eff conc (219 ug/1); allowable eff conc (228 ug/1);
Conclusion: model result indicates instream concentration could be close to action
level.
• Overall Conclusions: No additional limits required for the 3 metals evaluated.
However, it is recommended that effluent monitoring for selenium and copper be
increased from quarterly to monthly. In addition, ESB has recommended annual
fishery monitoring as a condition to this permit mod.

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0001422 (Continued)
Proposed Schedule for Permit Issuance
Draft Permit to Public Notice: 08/12/98
Permit Scheduled to Issue: 09/28/98
State Contact
If you have any questions on any of the above information or on the attached
permit, please contact Tom Belnick at (919) 733 -5038, extension 543.
Copies of the following are attached to provide further information on the permit
development:
• Reasonable Potential Analysis (majors only)
• Existing permit effluent sheets with changes noted (existing facilities only)
• Draft Permit
NPDES Recommendation by: M Date: 6' .3'7
Regional Office Comments
This space is used by the Regional office personnel to identify specific concerns in
reference to issuance of the subject permit.
F4%4 4o Rlc4 Sk1v4i, W U Ern $13; 6ktK
Regional Recommendation by:
Reviewed By:
Regional Supervisor:
Date:
Date:
NPDES Unit: Date:

R c s + 8r p
�
QQQ
S �, s � �•� i� -i ^ '�� J14 lr-c
.' f , ?. �� k.y �Fl�tt tr F, t }�t� Nr 1�,. � �•i.. .'
g U"7
w
10 0
c a
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oQ c
ail �+•+�` ) : f t j' � �
A� � .1 . n [ F u., r •: Cn � �i
Q,, 3 N
O
L
V
C C
Q y N \� LL
EB � O ° �of°C Qo O
ro
N
co
o cc
LL a .a .
NN ;tt is
O
St , .'.'�, � i
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N d gyp,
(b j O
2 a LL
CL
U- JGAI�j
Q) JLIG
'tr♦ �'r� i gE�ififi r:y'ac i
t s
W-41MV Yin w` k 4
d
i,
•.. 4L
Y
;{• S
Q
Z
J
Q
U
Z

. >,.. 1v. v.rit'l a ( vv 1
Facifity Name = CPBL- SullonSteam 'arameter- Arsenic Parameter= Selenium Parameter- = Copper R
NPDES 9 = NC0001422 ___.4)ay Standard = 50 pgA- - - - - - - Standard = 5 po - - -I Standard = 7 pgA (AL) - - -
40011
C: 0.29'
I ��
n DL =1/2131 clual Dal FtESULTS
-
.5
30
23 Std Dev.
_
63.47
9607
73
nd Mean
78.75
9604
42
nd C.V.
06
9601
170
- Oaslonia -Long CreeF VWVTP B.OMOD to, I Fork Cale wba R
Q(. (cD)
3.868
7Q10s (cfs)-
735.8
n BDL =1 /20L lual Data RESULTS
n DL -112DI ctual DatzRESULTS
IWC ( %) =
0.52
9804
17
_
Std Dsv. 5.8643011
_
2.5 c5
Sid Dev.
15.6827
9801
18
Mean C- 10.25)
_9604
9801
2.5 <5
Mean
20.65
FINAL RESULTS
CONVERT
9711
11
C.V. 0.57-42
9711
7
C.V.
0.759453
Arsenic
9710
2.5
<5 n =10
9710
2.5 <5
n =10
I�
Max. Fred Cw
54.0
0.3
9704
16
_9704
24
Allowable Cw
9544.2
50.0
9701
6
Mult Facia 3
34
Mult Facto
3.8
Selenium
9810
B
Max. Value 18 N JI
_9701
9810
28
Max. Vela
Max. Pred Cw
163.4
0.9
9607
5
Max. Pred 4 pgA
9607
28
Max. Pred
�1634
Allowable Cw
954.4
5.0
9604
4
Allowable (: 9544.2 pgA
9604
37
Allowable
V
Copper
9601
15
9601
Max. Pred Cw
1224.0
6.4
___43
_
-
Allowable Cw
1336.2
7.0
40011
C: 0.29'
I ��
n DL =1/2131 clual Dal FtESULTS
9711
30
23 Std Dev.
_
63.47
9607
73
nd Mean
78.75
9604
42
nd C.V.
06
9601
170
18 n =4
ASr L ✓� L�Iji se ED /
(w0 y ZS qny <.S
q 6` 1
9'71'0
q 70Y
9702
0 bc7
q bcL
qSo 2
LS
LS
2
3
y
3
-:1'I
- C`13 I LKSAn,X
a+rl}1.� aPr f`n C�C111�
L C 4-q 0
001 *00Y
CQ11-}'1�uu�vJ
2.S ►'rH 600���
12.SMbD
Lalb�,►�,��-
C4 = C1jo
so. (3-L -0:r 3 Y
X16%1 <S
q7►o LS
9 TOY C I
X702 3
qbo7 -3
qb0 b Z
9so2- Z
3
� �
rj S__ 3IP = i s) ^1 r
29.7
15 I
5 (-� i - 6) -_ (I � 3 �') lij
Mult Factor 7.2
I Max. Value 170 A
Max. Pred 1224 pgA
Allowable -13 Pg
q &oy
gto1
C1 701/
q •7a°2
`lb37
961A
17542.
ri►
G4
pjj /-�
ra
Is
!q
IS
zz
.y
<L'Q
B
I�y(z.$)
IS
/ll
CA =
CwQ• •�D �
Z2� 4)1)j
-4--1
.tea
N

'
Facift Name - CP&L- Sutton Steam
NPDES X - NC0001422
Parameter= Arsenic
Standard =
50 NpA
Parameter= Selenium
Standard = 5
_
I I
•
I n
DL =12D4 dual Dab RESULTS
�,�
2.5
1 9711
301 23 Std Dev. 63.47 -
9807
731 ndIMean Q 78.75)
9604
1 9601
N9A
I
I I
MuB Factor 7.2
Ow (MGD) =
OW (oft) =
3.888
(Max. Value 0
m
„.„ L . /. t' WTP 8�M81
� T
IF -Z 3u1 w "t•.
I
(Allowable 13 pq
7010s (as)=
735.8
n BDL -1/2DL Kral Daft I RESULTS I
n
13L =12131. dual 13
RESULTS
/WC (%) :
0.52
9804
17
Std Dev. 5.8843011
98041
2.5 c5
Std Dev.
15.
9801
18
Imes X0.2
9801
2.5 <5
Mean 1
20.85
FINAL RESULTS
CONVER19
9711
11
C.V. 0.5
9711
7
IC.V. 10.75-9;M
Arsenic
1
97101
2.5
<5
n =10
9710
2.51<5
n =10 I
Max. Prod Cw
54.0
0.31
97041
16
9704
241
1
Allowable Cw
9544.2
50.01
97011
6
Mute Factor 3I
9701
341
Mull Factoj
3.8
Selenium
96101
8
Max. Value 18
9810
281
Max. Valu#
43 µ
Max. Pred Cw
163.4
0.9
9607
5
Mex. Pred i;
NpA
9807
281
Mex. Predl
183.4 µ
Allowable Cw
954.4
5.0
9604
4
Allowable (;/ 9544.
NgA
9604
371
Allowable
9 . W
V
Copper
9801
15
9801
43
Max. Pred Cw
1224.0
6.4
-
Allowable Cw
1336.2
7.0,
/
I
400 jAS, ujfl
quo y rs
gjc1 L5
9710 4 S
- CoI
9 70y 2
9 702 3
q R7 4
%oL 3
qso 2 "',
q6
�M,dO f�' _ V,
L CDI* y
co �I�Wu4 ;
2-5 #16b 600\4)
12.5Al bb (ooi)
CJQ•h,
Oo �;`e,,�
joy <s
q6%l <S
g710 LS
VIDY
8702
g6o7
q \00 6
GI
3
3
2
GE= 3 (IZ.S) t ib3(z.$) _ (29.7 v� /)j
i5
Parameter = Copper ) I
P i
Standard=
71trpA (AL)
.�
_
I I
•
I n
DL =12D4 dual Dab RESULTS
1 9711
301 23 Std Dev. 63.47 -
9807
731 ndIMean Q 78.75)
9604
1 9601
421 ndIC.V. 0"906
1701 181n -4
I
I I
MuB Factor 7.2
�'p�I
(Max. Value 0
m
LMax. Pred 1224 V9A
e
l
(Allowable 13 pq
I=
boy
quo I
q7oy
g7oZ
107
960
g502
G4
NJ 1-f
f8
Is
ly
Is
ZZ
.y
< L'0
v(z.$)

OWF.�tyName = CP &L -Sutton Steam
NPDES # = NC0001422
_
Ow (MGD) = 1 !
Qw (c1s) = 23.201
7Q10s (ds)= 735.1
mc(%)= 3.01
FINAL RESULTS
Max. Prod Cw
163.4
Allowable Cw
163.2
er
2.5
2.5
Max. Prod Cw
1224.0
Allowable Cw
228.5
Parameter -
I qf­fm.
Parameter • Selenium
Standertl = 5 mn
n
98041
17
Std Dev.
5.81143011
2.5
2.5
9801
Std C
18
Mean
Mean
10.25
E
9711
9710
9704
11
<5
C.V. 10.5740782
34
97101
2.5
<5
W0
28
1.7
9704
91104
16
Glow
0.0
9701
B
MUM Facb4
3
9e10
8
Max. Valued
Max. Prod C
18
54
5.0
95071
5
Parameter • Selenium
Standertl = 5 mn
n
DL-1=
dual Dat
RFSI
9804
9801
2.5
2.5
<5
Std C
1<5
Mean
9711
7
C.V.
n =10
9710
9704
2.5
24
<5
9701
9510
34
Mutt I
Max.
9807
28
Max.
91104
37
Glow
n
9711
9507
9804
9801
�r
C.V.
n-4
Mull Factor
Max. Value
Pi

w Facility Name= CP&L -Sutton Steam
Parameter= Arsenic
Parameter= Selenium
Parameter = Copper
NPDES # = NC0001422
Standard =
50 Ng/I
Standard =
5
pg /l
Standard =
7 pgA
1(AL)
Qw (MGDl =
350
I-
1
Qw (Cfs� =
541.52
;. _ .,
CYeek WVTP
8.�
-.
. rt
--
7Q10s (cfs)=
735.8
n BDL =1 12DL tual Data RESULTS
n DL= 1 /2DI. dual DataiRESULTS
n DL= 112DI. ctual Dat(RESULTS
IWC ( %) =
42.44
9804
2.5
<5 Std Dev.
1
9804
2.5 <5
Std Dev.
0.801784
9804
18
Std Dev.
3.735
9801
2.5
<5 Mean
2.5
9801
2.5 <5
Mean
2.251 1
9801
151
Mean
15.43
FINAL RESULTS
CONVER-
9710
2.5
<5 C.V.
0.4
9710
2.5 <5
C.V.
0.3563481
9704
141
C.V.
0.242
Arsenic
9704
2
<5 n =8
9704
0.5 <t
n =8
9702
151
1n -7
Max. Pred Cw
9.2
3.9
9702
3
9702
3
1
9607
221
1 1
Allowable Cw
117.8
50.0
9607
4
Mult Facto+
2.3
96071
3
1 Mult Facts,
2.11 1
9606
141
1 Mult Factor)
1.6
Selenium
9606
3
Max. Valu
4 pgA
96061
2
Max. Value
31 yg/11
9502
101<20
Max. Valuel
221 !Y
Max. Pred Cw
6.3
2.7
9502
0.5
<t Max. Pred
9.2 pg/1
95021
2
Max. Pred
6.31 V9A I
Max. Pred
39.6
pgi
PgI
Allowable Cw
11.8
5.0
Allowable
117.8 V9A
1 Allowable
11.81 pgA 1
Allowable
16.5
Copper
Max. Pred Cw
39.6
16.8
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Sutton Plant Selenium Issue
Wilmington Regional Office of NCDWQ
May 13,1998
• Introductions
• Purpose of Meeting
• Selenium and Coal -Fired Power Plants
• Ecological Effects of Selenium
• Overview of Sutton Plant Selenium Issue
• Optional Solutions Considered
• Proposed Solution
• Discussion
i
•.
N
Sutton Plant Selenium Issue
Wilmington Regional Office of NCDWQ
May 13,1998
• Introductions
• Purpose of Meeting
• Selenium and Coal -Fired Power Plants
• Ecological Effects of Selenium
• Overview of Sutton Plant Selenium Issue
• Optional Solutions Considered
• Proposed Solution
• Discussion

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r
Selenium concentrations in fish from Sutton Lake
Largemouth bass
Year
Liver
Muscle
1992
7.5 ± 1
5.3± 0.4
1993
2914
17± 2
1994
28 ± 2
13± 0.6
1995
35 ± 2
16± 1
1996
49 ± 4
21 ± 2
1997
31.5±9.3*
19.6±4.0*
fe Ir 6 VJ
1a- 3cd°,fm OW Cf4yrre�,F(
Bluegill
Year
Liver
Muscle
1992
17 ±3
5.6±0.2
1993
28±3
19 ±0.4
1994
_r
62 ± 11
19 ± 1
1995
103 ± 12
20 ± 1
1996
84 ± 30
23 ± 0.4
1997
118.8± 90.1*
24.6± 2.7*
* Unpublished draft
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c�a
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E
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1992 1993 1994 Year 1995 1996 1997
■ Bluegill ❑ Largemouth bass

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L66L 9661 6664 1664 6864 L861 5864 686G
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r
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Makeup
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Qe = 15 MCN
Ce = 7.5 µg/1
Smi K = 1.15 µg/1
Cs = Background conc. in river
Os = 7010 of river
CL = Background conc. in Lake
Q1. = Blowdown from Lake
Ca = Conc. of ash pond l
Qa = Flow of ash pond
Ce = Conc. of combined effluent
Qe = Flow of combined effluent
Smix = instream conc.
Note: Concentration units are micrograms
per liter
Lake Sutton(ool,V Pond
� Ca = 30 µg/1
CL = 3 µg/1 ' Qa = 2.5 MG]
QL = 12.5 MGDO
/ 00 .40 CO
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Plant Site
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State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
November 15, 1996
Mr. Cecil E. Rowland, Plant Manager
Carolina Power and Light Company
801 Sutton Steam Plant Road
Wilmington, North Carolina 28401 -8357
Dear Mr. Rowland:
F1.9*AA
' T4 a
A 0
OPN% RO
IDEHN1�
Subject: Implementation of Lower Cape Fear Monitoring
NPDES Permit Modification for Instream Sampling
Permit No. NCDO01422
CP & L - Sutton Plant
New Hanover County
As a participant in the coordinated instream monitoring efforts within the lower Cape Fear
River basin, your facility and the North Carolina Departrnent of Environment, Health and
Natural Resources (DEHNR) have entered into an agreement that provides both parties with an
effective environmental monitoring tool. By this letter, the DEHNR is waiving the instream
monitoring requirements as specified within your individual NPDES permit. This waiver should
be considered effective as of October 3, 1996. As specified in the Memorandum of AS , . ;. „ � t
(MOA) signed by this agency and you (or your representative), the a &, .::,, ;..t identifies the
stations, parametric coverage and frequency of analysis required in order that the instream
monitoring requirements be waived for your facility.
All other terms and conditions in the original permit remain unchanged and in full effect. These
modifications are issued pursuant to the requirements of North Carolina General Statute 143-
215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental
Protection Agency dated December 6,1983. Should your membership in the agreement be
terminated, you shall notify the Division immediately and the instream monitoring requirements
specified in your permit will be reinstated.
I would like to express my appreciation for the cooperation and participation of all participants
in this innovative approach to environmental monitoring. It is expected that the results of the
agreement will effectively contribute to our understanding of the lower Cape Fear River basin
environment. We have designated Ken Eagleson as our primary contact for issues related to the
MOA. He can be reached at (919) 733 -9960. We also look forward to the advances that this
cooperative agreement will provide in our management of the lower Cape Fear River basin and
ask that you feel free to contact us should any questions arise regarding the monitoring efforts or
interpretations of the information collected. We will be maintaining our own series of monitoring
P.O. Box 29535, Raleigh, North Carolina 276280535 Telephone 919 - 733,5083 FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper

stations in the lower basin which, when added to the information collected by this agreement,
will greatly expand our knowledge of this complicated environmental system. We thank you
again for your participation and look forward to a successful monitoring effort.
Sincerely,
Preston Howard, Jr.,
cc: Central Files
Larry Ausley, Aquatic Survey & Toxicology Unit
Ken Eagleson, Wilmington Regional Office
Facility Assessment Group
Camilla M. Herlevich
Permits & Engineering Unit (Permit File)