NC0039586_Draft Permit_19910520

DIVISION OF ENVIRONMENTAL MANAGEMENT
May 20, 1991
MEMORANDUM
To: Don Safrit
Dale Overcash
Trevor Clements
Betsy Johnson
Tion Donnelly
Rick Hiers
Ken Eagleson
Larry Ausley
From: Rosanne Barona )4-1 1`�—
Subject: NCO039586
CP & L - Shearon Harris
CP & L has requested a meeting with DEM to discuss the draft permit for NCO039586 - Shearon
Harris. A meeting has been set up on May 29 at 2:00 pm in the 9th floor conference room. Please let
me know if you have any questions.

,:-...
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CP&L
Carolina Power & Light Company
Mr. Dale Overcash, P.E.
N.C. Division of Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611-7687
RE: Shearon Harris Nuclear Power Plant
NPDES Permit No. NCO039586
Amendment to Permit Application
Dear Mr. Overcash:
On September 27, 1990, Carolina Power & Light Company (CP&L)
submitted a request for the Shearon Harris Nuclear Power Plant
(SHNPP) permit to be renewed. Currently, the existing permit and
permit renewal application only address hydrazine discharges
through low volume waste. It recently become apparent to us that
wastewater containing hydrazine may occasionally need to be
discharged through the radwaste system, as well as the low-volume
waste system. Therefore, this is intended to amend the application
to reflect this additional source.of hydrazine discharge.
Additionally, CP&L is respectfully requesting modifications to
the current hydrazine discharge period and the notification
requirements. A description of the alternate routing of hydrazine
and the requested permit changes are included in the enclosure.
Thank you for your cooperation. Should you have any questions
or require further information, please call Mr. Cam Wheeler at
546-6725 or Ms. Barbara Stephens at 546-7777.
BWS
Enclosure
Yours very truly,
R. M. Coats
Manager
Technical Services
411 Fayetteville Street • P. O. Box 1551 • Raleigh. N. C. 27602

AMENDMENT TO SHEARON HARRIS NUCLEAR POWER PLANT
NPDES PERMIT APPLICATION
CHANGES IN PLANT OPERATION - HYDRAZINE DISCHARGES
The present NPDES permit allows for low volume wastes to be
routed to either of two systems, the low-volume waste system
(Serial No. 004) for non -radioactive wastes or the radwaste system
(Serial No. 005) for radioactive wastes, depending on -the level of
radioactivity. (Flow diagrams submitted previously to the Division
of Environmental Management. (DEM) indicate both of these flow
paths.) One component of low volume waste is secondary waste,
which consists of water from the secondary cooling system (the
normally non -contaminated steam component in this nuclear power
plant). The secondary cooling system contains hydrazine as an
oxygen scavenger for corrosion control.
The "Summary Description of Hydrazine Wastes" submitted to DEM
in February of 1989 stated that "all wastes that might contain
hydrazine flow via plant drains to the low volume waste treatment
system." This statement is no longer valid. Within the past year,
there has been an occurrence of a steam generator (primary system)
tube leak, causing the secondary waste to contain radioactive
substances for a brief period. During this incident, secondary
waste was routed to the radwaste system (Serial No. 005) for
treatment rather than through the low-volume waste system (Serial
No. 004). The plant promptly corrected the leaks, treated the
contaminated wastewater, and resumed the routing of secondary waste
to the regular low volume waste treatment system. Such incidents
are expected to occur infrequently.
REQUEST FOR PERMIT MODIFICATIONS OF HYDRAZINE REQUIREMENTS
CP&L. requests two changes to the current hydrazine
requirements:
1. RELEASE.PERIOD
y The permit currently allows the discharge of hydrazine at
,�G?�a� �i� �%v a concentration above 60 Ag/1 and no greater than 2 mg/1
�Iw for a period of no more than 24 hours. It is requested
that this be changed from a 24-hour to a 48-hour total
period. The additional time is needed primarily due to
the extra time required to treat and release water
.�a J through the radwaste system, in the event that secondary
waste is routed through this system. Following wet
layup, if the steam generators contained radioactive
substances, the water would be drained from the
generators and batch -treated for radioactivity. Only
1

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25, 000 gallons can be treated at the- time in, the radwaste
tanks, and the discharge rate from radwaste, based on NRC
requirements, is limited to 34-90 gpm according to the
activity level. A minimum of six hours processing time
is needed between releases._
Normally, however, secondary waste is not routed through
radwaste. Therefore, non -contaminated low volume wastes
typically can be released in a 24-hour total period;
however, there could be instances in which a longer time
may needed.
2. NOTIFICATION PERIOD
Thecurrent permit requires that CP&L "shall notify the
DEM Raleigh Regional Office at least one week prior to
the conclusion of any wet layup period and shall specify
�,. if there will be a 24 hour period in which hydrazine will
be discharged at a level greater than 60.0 gg/1." CP&L
requests that the notification requirement be dropped.
This change is requested because it would be impractical
to provide prior notification since hydrazine -containing
° equipment may be needed at a moment's notice during
normal plant operation and since plant outage schedules
are often subject to change.
Alternatively, the permit could be changed to require
notification within one working day after a release of
hydrazine at a concentration exceeding 60 gg/1.
Per recent conversation between Mr. Tim Donnelly of
DEM's Raleigh Regional Office and Mr. Cam Wheeler of
CP&L, it is our understanding that this notification is
not necessary.
2

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COMMENTS ON DRAFT NPDES PERMIT NO. NC0039586
SHEARON HARRIS NUCLEAR POWER PLANT
OUTFALL 001 -COOLING TOWER BLOWDOWN
1. TSS is not a required parameter for cooling tower blowdown in
40 CFR 423. Additionally, the cooling tower is not designed
to provide treatment for solids. Solids concentration in the
influent may, in fact, be higher than specified limitations.
Therefore, monitoring and limits are not appropriate. A.da.4--. bo(o
b456d oK
2. The statement "There shall be no chromium, zinc, or copper
,v,, 't) added to the cooling water" should be deleted since the 0V"
P addition of chromium and zinc is permitted. It is CP&L's
understanding that this typically is used for cooling water
�,n`�''and is, therefore, probably not appropriate for cooling tower
Off blowdown.
r--
3. It would be helpful if the page included the name of the/
discharge, i.e., "Cooling Tower Blowdown."
4. We are interpreting "instantaneous average" to be the average
chlorine concentration over the two-hour discharge period. If
this interpretation is not correct, please advise.
5. The sample type for chromium and zinc is indicated as
"composite." Consistent with all other chemical analysis for
aFicals
is requested that the sample type be changed to
as in the present permit. Since the concentration of
in the cooling tower blowdown remains relatively
constant, a grab sample would be representative..
OUTFALL 002 -SANITARY WASTE TREATMENT PLANT
1. The monitoring frequencies have increased significantly since
the last permit was issued, due to the reclassification of the
sanitary waste treatment facility. Daily monitoring and �.
analysis of BODS and fecal coliform would be difficult. Based
on the -excellent compliance record for these parameters (see
attached data) , it is requested that the frequencies for these
two parameters be changed to a lesser. frequency, such as
weekly. CP&L believes that the modified frequency would still
be sufficient to document quality effluent, as in the past.
In addition, plant personnel conduct daily operational tests
and surveillance of the treatment facility, allowing for early
detection of any potential problems.
2. It would be helpful if the discharge name was added to the ✓
page.

OUTFALL 003 -METAL CLEANING WASTES
1. It is suggested that TSS and Oil and Grease monitoring and z
limits be deleted since 003 always discharges through 004, and
these parameters are monitored at 004.E
2. The footnote (notated **) should be corrected to indicate that
003 is routed to 004, not 001.
3. Should Oil and Grease monitoring re rab"ents be retained, the/
sample type should be changed to
OUTFALL 004 -LOW VOLUME WASTES
v
1. The Oil and Grease limits should be 15 mg/1 and 20 mg/1 rather
than 10 mg/1 and 15 mg/l, in accor ance h federal
guidelines for this waste stream.
OUTFALL 005-RADWASTE SYSTEM
1. The radioactive substances monitoring and limits are not
appropriate and should be removed. The authority to regulate
radioactive substances at a Nuclear Regulatory Commission
(NRC) - licensed facility, such as the Harris Plant, is held
solely by the NRC. (40CFR 122.2; Train vs. Colorado P.I.R.G.
Inc. 426 US 1, 1976; Agreement Between U. S. Atomic Energy
Commission and the State of North Carolina, 1964.) CP&L
regularly monitors radioactivity in the Harris Reservoir as a
condition of the NRC operating license, and the power plant
discharges do not threaten the N.C. Water Quality Standards.
OUTFALL 006 -COMBINED OUTFALL
1. As stated in CP&L's recent letter to Mr. Dale Overcash, it is
requested that the hydrazine release requirements be changed
1) to allow for a total release period of no more than
48 hours at a concentration above 60 gg/1 and no greater than
2 mg/l; 2) to modify the notification language to indicate
that prior notification to the DEM Raleigh Regional Office is
not required. Alternatively, notification could be required
within one business day after a release of hydrazine at a
concentration above 60 gg/l. Per recent conversation between
Mr. Tim Donnelly of DEM's Raleigh Regional Office and
Mr. Cam Wheeler of CP&L, it is our understanding that this
notification is not necessary.
As described in the referenced letter, these requested changes
are consistent with plant operational requirements.

2. It is requested that the acute toxicity test organism be
changed ,from daphnia to fathead minnow, the organism CP&L is
currently using in compliance with the existing NPDES permit.
Reid Garrett of CP&L recently spoke with Mr. Larry Ausley of
DEM's Aquatic Toxicology Unit concerning the proposed testing
requirements and learned that he specifically ,chose the
present requirements for the Harris Plant and recommends that
they be continued.
3. There are a number of parameters required (primarily metals)
that we do not believe are appropriate for monitoring at this
D
facility. Arsenic, cadmium, fluoride, lead, and selenium are
not added by the plant. The concentration of these parameters
in the combined outfall (as determined from priority
pollutants monitoring) are well below water quality standards,
and selenium was, below the detection limit. Additionally, all
of the chemical parameters required for 006 except hydrazine
are already required to be monitored annually in accordance
with the Annual Pollutant Analysis. It is, therefore,
requested that at least the five parameters listed above be
deleted from the monthly monitoring requirements.
4. It is requested that the footnote describing the sample type
(modified composite) for acute toxicity and pollutant analysis
sample type also be applicable to all required monthly metals
monitoring. 5. Total residual chlorine is already monitorbd upstream of 006
at both 001 and 002. It is, therefore, requested that the
monitoring requirement for chlorine be dropped at 006.
6. It is requested that pH monitoring and limits be deleted since
pH requirements are already applied to all other waste
streams, which are upstream of the combined outfall line.
PART III
CP&L requests that the following conditions be added to Part III to
recognize several small intermittent flows referenced in the permit
application:
M. Intermittent flows of water from the water storage tank
drain areas, and heat exchanger steam condensation to the
storm drains are permitted without limitations or
monitoring requirements. -
N. Intermittent flows from the drainage of condenser water
boxes and associated piping to the storm drains as
necessary for condenser maintenance or inspections is
permitted. The drain water shall be monitored --tor IDH,
temperature, zinc;arazine, free available chlorine,
an�lc.-total residual chlorine. esu is shall be reported
aong wi the monthly Discharge Monitoring Report.

HARRIS SEWAGE TREATMENT FACILITY
NPDES MONITORING DATA
MONTH/YR
COLIFORM (col/ml)
BODS (mg/1)
Jan 90
-
0
Feb 90
2.7
9.1
Mar 90
1
6
April 90
7
0
May 90
1
11.5
June 90
1
12.5
July 90
28
0
Aug 90
1
0
Sept 90
2
0
Oct 90
1
0
Nov 90
1
0
Dec 90
63
13
Jan 91
1
11
Feb 91
1
6
Mar 91
3
0
Monthly Avg Limit 200 30
No Monthly Average Violations
One Daily Max Violation 7/11/90
of Fecal Coliform Limit

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL
Permit No. NCO039586
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.
Such discharges shall be limited and monitored by the permittee as specified below:
A 001;9 -Guxr 136C,80w„
Effluent Characteristics
Discharge Limitations
Monitoring Requirements
Lbslday. Units (specify)
Measurement
Sample
*Sample
Mon. Avg. Daily Max Mon. Avg. Daily Max.
Frequency
Type
Location
Flow
17.0 MGD"
Continuous
Recorder
E
Temperature
TSG —-3
15 -0 -M -Vi
E —
Free Available Chlorine''*
0.2 mg/I 0.5 mg/I
Weekly
Total Residual Chlorine
Weekly
Time of TRC (min/day/unit)*'*
120.0 min
Weekly
Calculations
E
Chromium****'
0.2 mg/I 0.2 mg/I
Weekly Ci�F�
GGW'F te-
E
Zinc*****
1.0 mg/I 1.0 mg/I
Weekly Crub
Qomposite
E
Total Nitrogen (NO2+NO3+TKN)
Monthly
Grab
E
Total Phosphorus
Monthly
Grab
E
The 126 Priority Pollutants*'***-
441ERE CSTT A T T TSE"f`P��'Cl2T\111
�f' IPLj GiNe, O nTr'e E)PPE \ ADDED :FO _'P_7 Li eE) f4?4L WATER.
2/Month
Grab
E
*Sample Locations: E - Effluent prior to mixing with any other waste stream
** Discharge of blowdown from the cooling system shall be limited to the minimum discharge of recirculating water necessary for the purpose
of discharging materials contained in the process, the further build-up of which would cause concentrations or amounts exceeding limitations
of established engineering practice. The discharge shall not result in the violation of Class C water quality standards outside of a mixing zone
of 200 acres around the point of discharge. The mixing zone is for temperature and chlorine. The temperature within the mixing zone shall not:
(1) prevent free passage of fish around or cause fish mortality within the mixing zone (2) result in offensive conditions (3) produce undesirable
aquatic life or result in a dominance of nuisance species outside of the zone (4) endanger the public health or welfare. A pump log may be used
in lieu of continuous monitoring. The permittee may discharge cooling water to the auxiliary reservoir in compliance with Part III, Condition
F. of this permit.
WARNZE *** Neither free available chlorine nor total residual chlorine may be discharged from any unit for more than two hours in any one day and not
more than one unit in any plant may discharge free available or total residual chlorine at any one time unless the utility can demonstrate to the
Director of the Division of Environmental Management that the units in question cannot operate at or below this level of chlorination.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL
Permit No. NCO039586
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. Such discharges shall be limited and monitored by the permittee as specified below:
ti
onnl' —tote—e( l�jb-80w✓\
Effluent Characteristics Discharge Limitations Monitoring Requirements
Lbs/day. Units (specify) Measurement Sample *Sample
Mon. Avg. Daily Max Mon. Avg. Dally Max. Frequency Type Location
**** Total residual chlorine and free available chlorine shall be annstantaneou�average and instantaneous max. Samples shall be multiple
grabs at the tower which shall consist of grab samples collected at the approximate beginning of the total residual chlorine discharge and once
every 15 minutes thereafter until the end of the total residual chlorine discharge . For the purpose of this permit, daily average (as it relates to
the chlorination period) shall mean the average over any total residual chlorine discharge period.
***** These limitations and monitoring requirements apply only if these materials are added by the permittee. There shall be no discharge of
detectable amounts of materials added for corrosion inhibition or any chemical added which contains the 126 priority pollutants, exclusive of
zinc and chromium. (40 CFR 423)
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
1r .

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO039586
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 002.A Such discharges shall be limited and monitored by the permittee as specified below:
A 5Q,-\1 i -o ry \A)Gt51e, —\ p14 r1+ -
Effluent Characteristics Discharge Limitations Monitoring Requirements
Flow"
BOD, 5 day, 20°C
Total Suspended Residue
NH3 as N
Fecal Coliform (geometric mean)
Total Residual Chlorine
Temperature
Total Nitrogen (NO2 + NO3 + TKN)
Total Phosphorus
*Sample locations: E - Effluen�rior to mixing with any other waste stream, I - Influent
** Flow may be measured by pump log
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Measurement
Sample
*Sample
Monthly Avq. Weekly Avg.
Daily Max
Frequency
Type
Location
0.05 MGD
Continuous
Recording
I or E
30.0 mg/I
45.0 mg/I
Paily Tek ly
Composite
E
30.0 mg/I
45.0 mg/1
Daily
Composite
E
Weekly
Composite
E
200.0/100 ml
400.0 /100 ml
-Batt- wQe-kl�
Grab
E
Daily
Grab
E
Daily
Grab
E
Quarterly
Composite
E
Quarterly
Composite
E
*Sample locations: E - Effluen�rior to mixing with any other waste stream, I - Influent
** Flow may be measured by pump log
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored daily at the effluent by grab sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. O. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO039586
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 003 metal cleaning wastes***. Such discharges shall be limited and monitored by the permittee as,specified below:
Effluent Characteristics
Discharge Limitations
(Monitoring
Requirements
Lbs/day.. Units (specify)
Measurement
Sample .*Sample
Mon. Ava, Daily Max Mon. Ava.
Daily Max.
Frequency
Tyne Location
Flow
0.05 M;G'D"
Pump Logs E
T
100.0
Inyll
21mull HI
Copper
1.0 mg/I
1.0 mg/I
Daily
Grab E
Iron
1.0 mg/I
1..A mg/I
Daily
Grab E
1-P ltitari Ec�rr'r� tte.�'cirwc%
Cka h9e L6
*Sample locations: E - Effluent -prior to mixing with any other waste stream. .
oay -
** Discharge from 003 must continue to be routed to outfall -W]. before final discharge. Flow shall be measured during discharge using pump
logs.
*** The term "metal cleaning wastes" means any wastewater resulting from cleaning (with or without chemical cleaning compounds) any metal
process. equipment including, but not limited to, boiler tube cleaning, boiler fireside cleaning, and air preheater cleaning:
In the event that metal cleaning waste.must be processed and discharged through the liquid radwaste system, the -discharge shall comply with
the limitations specified for metal cleaning wastes prior to mixing with other waste streams.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
ICA There shall be no discharge of floating solids or visible foam in other :than trace amounts.
0000�

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO039586
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 004 low volume wastes***. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics
Discharge Limitations
Monitoring
Requirements
Lbs/day. Units
(specify)
Measurement
Sample
*Sample
Mon. Avg. Daily Max Mon. Ava.
Daily Max.
Frequency
Type
Location
Flow
1.5 MGD
Estimate
E
TSS
30.0 mg/I
100.0 mg/I
Weekly
Grab
E
Oil and Grease
Weekly
Grab
E
Hydrazine
15- M 1
�O m�! 1
Weekly
Grab
E
*Sample locations: E - Effluent prior to mixing with any other waste streams.
** Flow shall be estimated during discharge.
*** Low volume wastes shall means, but not all inclusive, taken collectively as if from one source, wastewater from wet scrubber air pollution
control systems, ion exchange, water treatment systems, water treatment evaporator blowdown, laboratory and sampling streams, floor
drainage cooling tower basin cleaning wastes, blowdown from recirculating house service water systems, and steam generator blowdown.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored weekly at the effluent by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

a

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO039586
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 005 Radwaste System**. Such discharges shall be limited and monitored by the permittee as specified below:
Effluent Characteristics
Discharge Limitations
Monitoring
Requirements
Lbs/day. Units
(specify)
Measurement
Sample
*Sample
Mon. Avg. Daily Max Mon. Ava.
Daily Max.
Frequency
Type
Location
Flow
Monthly
Estimate
E
TSS
30.0 mg/I
100.0 mg/I
Monthly
Grab
E,"'
Oil and Grease
15.0 mg/I
20.0 mg/I
Monthly
Grab
E,-Radieaet
. ,...
*..
Q h
„,.
*Sample locations: E - Effluent prior to mixing with any other waste streams.
** Low volume wastes (radwaste system) shall mean, but not all inclusive, taken collectively as if from one source, wastewater from wet
scrubber air pollution control systems, ion exchange, water treatment systems, water treatment evaporator blowdown, laboratory and sampling
streams, floor drainage, cooling tower basin cleaning wastes, blowdown from recirculating house service water systems, and steam generator
blowdown.
*** Monthly samples shall be taken for Flow, TSS, Oil and Grease, and pH at each of the following locations: (1) Secondary Waste Sample
Tank, (2) Treated Laundry and Hot Shower Tanks, (3) Waste Monitor Tanks, and (4) Waste Evaporator Condensate Tank.
**** (1) The max mu- m -avers nnual activity level (based on at least 4 samples collected ua }-fer cut ed radium -226 and
radium -228 shall not exceed 5 pCi/1. nual gross alpha par icl� aetiv y including radium -226 but excluding uranium and
radon) shall not exceed 15 pCi/l. (3) The maximum avetage-ann -- - evel (based on at least 4 samples collected quarterly) for
strontium -90 shall not exceed 8 hall t�iie average annual gross beta panic e luding potassium -40 and other naturally
.:" occurrin ra deli exceed 50 pCi/1, nor shall the maximum average annual activity level for tritium exceed-2U,000pCi/l.
k The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored monthly at the E and *** by grab
sample.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITA'T'IONS AND MONITORING REQUIREMENTS FINAL
Permit No. NCO039586 '
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 006 Combined Outfall. Such discharges shall be limited and monitored by the pernuttee as specified below:
Effluent Characteristics Discharge Limitations Monitoring Requirements
Lbs/day. Units (specify) Measurement Sample *Sample
Mon. Avg. Daily Max Mon. Avg. Daily Max. Frequency jype Location
Hydrazine" 60.0 ug/I Weekly Grab E
Acute Toxicity— Monthly ' ' ' ' ' E
Pollutant Analysis"" Annually * ' ' ' E
Aluminum Monthly GeFflpesite4,1k E
E
C
Copper
Iron
Monthly Composite
Monthly Composite
E
E
Fh Qp dw Mcnthl�1,nmnneitm F
I parr Mcgtbl;' rcrx�; psjto 1=
Nickel Monthly C.ampasite E
*Sample locations: E - Effluent after combination of all waste streams listed in this permit but prior to discharge into Harris Reservoir
L48 :
** The hydrazine limit of 60.0 µg/1 shall apply at all times e cipt during the periods fo owing wet lay-up of equipment during an extended
outage when a hydrazine limit of 2.0 mg/1 shall apply for yeMi od of no more than -hours. C ry
p TIFM RalaiRh T?Pninr al (1Ffira t. ta.,�+...,p ,,.00l, ,,.-�..,-.-t@_t1�86.E�lllsig �lTt;fe�ty71'l c hour
p . Alternately, Carolina Power & Light may elect to meet these
limits at outfall 004, in which case sampling at ouyfall 006 is not required.
FaA he (>.d lM%V"no u_) 4"
*** Acute Toxicity (I)-,p4tftd 48 hr) Monitoring, See Part III, Condition D.
**** See Part III, Condition E.
***** In lieu of the requirements in Part II, Section A, Condition 8.a., composite samples for this effluent characteristic shall consist of 24 or
more grab samples of equal volumes taken at equal intervals over a 24 hour period.
;..; .he p14 shall net be less than 6.0 standatEl units nor reftter than 9 tandard units and shall be 111kJ111LV1CXr_VV_UUr,1Y aL Illu MULIL Uly_�;Udiy_
There shall be no discharge of floating solids or visible foam in other than trace amounts.

A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO039586
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 006 Combined Outfall. (Continued)
Effluent Characteristics Discharge Limitations Monitoring Requirements
Lbs/day. Other Units (specify) Measurement Sample *Sample
Mon. Avg= Daily Max Mon. Avg. Daily Max. Frequency Type Location
Se's^� •:,
Mont • 6s �eeite. -E
NH3 as NigMonthly drab—C°'"
T/i RpS*dual�'hlorine ilAenthly Grab b

Part III
Permit No. NC0039586
D. ACUTE TOXICITY TESTING REQUIREMENT
Paphnid r - Monthly Monitoring
kkoa Jkl vkvoLL,) - 4F -,h -r
L P! wl e lea l e s Jp V-0vra-1, s
The permittee snail concluct acute toxicity tests on a monthly basis using protocols defined as
definitive in E.P.A. Document 600/4-85/013 entitled "The Acute Toxicity of Effluents to
Freshwater and Marine Organisms". The monitoring shall be performed as a e or [-n c�
Geriedaph-nia 48 hour static test, using effluent collected as a 24 hour composite. Effluent
samples for self-monitoring purposes must be obtained during representative effluent discharge
below all waste treatment. The first test will be performed within thirty days from issuance of this
permit.
The parameter code for this test if using Daphnia pul is TA1AA-3P.
All toxicity testing results required as part of this permit
condition will be entered on the Effluent Discharge Form (MR -1) for the month in which it was
performed, using the appropriate parameter code. Additionally, DEM Form AT -1 (original) is to
be sent to the following address:
Attention:
Environmental Sciences Branch
North Carolina Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual
chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should any test data from either this monitoring requirement or tests performed by the North
Carolina Division of Environmental Management indicate potential impacts to the receiving stream,
this permit may be reopened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival and appropriate environmental controls, shall constitute an invalid test
and will require immediate retesting (within 30 days of initial monitoring event). Failure to submit
suitable test results will constitute noncompliance with monitoring requirements.
E. The permittee shall conduct a test for pollutants annually at the effluent from the treatment
plant. The discharge shall be evaluated as follows: 1) A pollutant analysis of the effluent must be
completed annually using EPA approved methods for the following analytic fractions: (a)
purgeables (i.e., volatile organic compounds); (b) acid extractables; (c) base/neutral extractables;
(d) organochlorine pesticides and PCB's (e) herbicides; and (fl metals and other inorganics. The
Annual Pollutant Analysis Monitoring (APAM) Requirement Reporting Form A and
accompanying memo, to be provided to all discharges affected by this monitoring requirement,
describes the sampling and analysis requirements and lists chemicals to be included in the
pollutant analysis. This monitoring requirement is to be referred to as the "Annual Pollutant
Analysis Monitoring Requirement" (APAM).
2) Other significant levels of organic chemicals must be identified and approximately quantified.
For the purpose of implementing this requirement, the largest 10 GC/MS peaks in the purgeable,
base/neutral extractable, and acid extractable fractions (or fewer than 10, if less than 10
eft
9
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Y unidentified peaks occur) for chemicals other than those specified on the APA Requirement
Reporting Form A should be identified and approximately quantified as stated in the APAM
Reporting Form A instructions. This part (item 2) of the APAM requirement is to be referred to as
the "10 significant peaks rule".
F. In order to ensure that the auxiliary reservoir is available for its designed use at all times, the
permittee may circulate heated water through the auxiliary reservoir to prevent ice formation at any
time that the surface water temperature is below 30° F, provided that the surface water temperature
in the auxiliary reservoir is not raised more than 5° F above ambient temperature and in no case is
raised to more than 40° F. Emergency Service Water may be discharged to the Auxiliary Reservoir
as required for operation of nuclear safety systems and testing.
G. There shall be no discharge of polychlorinated biphenyls (PCB's) from this facility to the
extent that this compound is not present in the facility's intake waters.
H. Nothing in this permit shall be constructed as a waiver by the permittee of any right to a
hearing it may have pursuant to State or Federal law or regulations.
I. Water discharged as backwash from intake screens is permitted without limitations or
monitoring requirements.
J. If any applicable standard or limitation is promulgated under Sections 310(b)(2)(C) and (D),
304(b)(2), and 307(a)(2) and that effluent standard is more stringent than any effluent limitation in
this permit, this permit shall be promptly modified, or revoked and reissued, to conform to that
effluent standard or limitation.
K. Should the guidelines and/or water quality standards upon which the limitations are based be
revised to be less stringent, the permittee may request relaxation of the permit limitations in keeping
with the revised guidelines and/or standards.
L. Use and discharge of any product registered under the Federal Insecticide, Fungicide, and
Rodenticide Act to any waste stream which may ultimately be released to lakes, rivers, streams, or
other waters of the United -States is prohibited unless specifically authorized elsewhere in this
permit. This requirement is not applicable to products used for lawn and agricultural purposes.
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