NC0038377_Re-issurance Applicatin_20060928

To Progress Energy
File: 12520 B -1
SEP 2 5 2006
Mr. Gil Vinzani, PE
North Carolina Department of Environment and Natural Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699 -1617 2 C 2� W E
Subject: CP &L d/b /a Progress Energy Carolinas, Inc. D L� l5 V
Mayo Electric Generating Plant SP 2 8 ZOQ6
NPDES Permit No. NCO038377
Re- issuance Application
Dear Mr. Vmzani:
ounrnt,c YYAItK rKUItI:IIUN SECTION
The current NPDES permit for Mayo Electric Generating Plant located in Person County expires
on March 31, 2007. Progress Energy hereby requests that the NPDES permit for the facility be
reissued. Enclosed are EPA Application Form 1 — General Information, EPA Application Form
2C — Wastewater Discharge Information, and EPA Application Form 2F — Stormwater
Discharges Associated with Industrial Activity, all in triplicate.
If there are any questions regarding the enclosed information, please contact Steve Cahoon at
(919) 546 -7457.
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations.
Sincerely,
La4E. Hatcher- Manager
Mayo Electric Generating Plant
Attachments
Progress Energy Carolinas, Inc.
Mayo Steam Plant
10660 Boston Road
Roxboro, NC 27574

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Enclosure 2 Form 1 — Item XI
Carolma -Power and Light Company
Mayo Electric Generating Plant
Person County, N C
Page 2 of 2 September 2006

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Progress Energy Carolinas, Inc.
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System Permit Number'NC0038377
Attachment 2
Form 2C - Item II -A Flows, Sources of Pollution, and'Treatment Technologies
Stream
Estimated Average Flow
Comments
1
14 MGD
Make up water-from Mayo Reservoir
2
13 7 MGD
Cooling Tower make up Maximum
rate is 23 7 MGD
3
0 36 MGD
Raw Water treatment
4
0 002 MGD
Sewage treatment plant
5
0 -00175 MGD
Raw water treatment backwash
6
0 36 MGD
Treated water to water storage
7
300 GPM (Max- rate)
Oily waste (infrequent) to ash,pond
8
1 5 MGD
Low volume waste to ash pond
9
0 05 MGD at start up
Boiler blowdown to ash pond
Cooling Tower basin drain to Mayo
10
2 MG /event 1 /yr
Reservoir
11
9 MGD
Evaporation from Cooling Tower
12
5 MGD
Ash Transport
13
Variable as needed
Intermittent blowdown of circulating
(blowdown)
water from heat- exchangers
14
8 5 MGD (recirculating flow)
Heat,exchanger (primaryrr"oute)
15
0 0135 MGD (annual daily
Coal pile Runoff
average)
16
7 3 MGD
Ash Pond discharge to Mayo
Reservoir,
17
Variable as needed
'Secondary containment for anhydrous
ammonia tanks
18
2 -1 MGD During Cooling
Heat exchanger (secondary route)
Tower out of service
19
0 253,MGD
FGD Blowdown

Progress EnergyiCarolinas, Inc.
Mayo Electric Generating Plant
National Pollutant Discharge Elimination Svstem,Permit Number NCO038377
Attachment 3
Form 2C - Item II -B Flows, Sources of Pollution, and Treatment Technologies,
The Mayo Electric Generating Plant is a coal -fired electric generating plant with one unit rated at a
maximum dependable capacity of 745 mw The plant, is located in Person County, North Carolina and
uses No 2 fuel oil for start up and stabilization of the boiler flame Water is withdrawn from the Mayo
Reservoir as'required to make up evaporative losses from the cooling tower, boiler water ,and drinking
water needs Makeup pumping rates from the reservoir are highly variable depending_ upon natural
weather conditions, generation load, plant operations, and evaporative loss
Chemical constituents contained in the discharges from this facility will, in part, be representative of the
naturally occurring chemical quality of the intake water, The discharges will also have chemical
constituents of such quality and quantity associated with similar discharges for fossil generating facilities
of this size, type, and in this geographical location 'Either all or part of the elements enumerated in the
Periodic Table, either singularly or in any combination, may 'from time to time be contained in this
discharge More detailed descriptions of the individual discharges described below
OUTFALL 001 - COOLING TOWER SYSTEM
Approximately once per ,year the cooling tower basin, and circulating Water system is drained by gravity
(the majority of the water drains to the ash pond) approximately 2 MG is drained to the reservoir to
dewater the system for ,maintenance That discharge is monitored and, reported to the state through the
monthly Discharge Monitoring Report,(DMR)
OUTFALL 002 —ASH POND TREATMENT SYSTEM
The ash pond receives ash transport water, coal pile runoff, storm water, cooling tower blowdown,
and various low volume wastes such as boiler blowdown, oily waste treatment, wastes /backwash
Water from water treatment processes, plant area wash down water, and equipment heat
exchanger water The sewage ,treatment plant also discharges, to the ash pond 'The ash pond
provides treatment 'by sedimentation, oxidation, neutralization, equalization, and adsorption A
standpipe allows for overflow release to a small secondary= settling basin for release into Mayo
Reservoir Due to alga blooms, the pH of ash pond discharge canal is adjusted at the standpipe
as needed
Ash Transport Water — Water for sluicing fly ash and bottom ash to the ash pond is withdrawn
from the closed circulating water system Some fly ash is handled dry by a pneumati'c,system and
is transported off site The water in the closed ,circulating water system "is treated with a
dispersant for protection of the cooling tower fill
Coal Pile Runoff — The coal pile runoff is routed to the ash pond, Flow volumes are related to
rainfall frequency and intensity The annual daily average flow presented previously is based on a
coal pile area of 5 acres, an annual average rainfall of 44 inches and a runoff coefficient of 1 0
Cooling Tower Blowdown — Normally, ash transport water withdrawal from the closed circulating
water system is sufficient to control total dissolved solids (TDS) in the cooling water During
periods of maintenance, some molybdate waste from the closed cooling water system is routed to
the ash pond Also during periods of maintenance, the cooling tower basin is drained to the
reservoir

Progress Energy Carolinas, Inc.
Mayo Electric Generating Plant
National Pollutant Discharge, Ell imination System Permit Number NC0038377
Low Volume Wastes —
Oily Wastes — Drains containing oily wastes or water are routed to the oily waste basin
The discharge from the oily waste basin is routed through the oil—water separator where
the oil is removed and contained The treated water is then discharged to the ash pond
The fuel oil storage tank is in a containment area with a valved drain The drain is routed
to `the oily waste basin
Boiler Blowdown — Boiler make -up water is withdrawn from the lake, treated by various
processes and stored in tanks until needed The boiler water is treated with ammonia
continuously when the boilers are in service Sodium hydroxide is used when needed
during abnormal conditions Boiler blowdown is routed to the ash pond via the low -
volume waste conveyance
Water Treatment Wastes. — Water is withdrawn from the lake and is treated by
clarification, sand ,filtration, carbon filtration, and demineralization Various wastes such
as ,filter backwash, and spent regeneration chemicals such as sulfuric acid and sodium
hydroxide are routed to the, ash pond via the low volume waste conveyance
Miscellaneous — Other miscellaneous sources such as wash down water, water from
various plant drains, secondary containment drains, laundry activity and temporary hand
washing stations are routed `to the ash pond via the low volume waste conveyance
Miscellaneous equipment heat exchanger water can be routed to the ash pond via the
alternate cooling tower blowdown line if needed The air preheaters are water washed
infrequently Then the air preheaters wastewater is discharged to thejash pond
Sewage Treatment Plant (STP) — Sanitary wastes are treated on -site by an extended
aeration treatment plant The plant is designed'for 0 Of25 MGD and consists of a screen,
comminuter, surge tank, aeration tank, clarifier, chlorine contact chamber, and a sludge
holding tank Flow from the system is dependent upon fluctuating demand due to
variations in the number of personnel on site When needed, residuals are disposed of
off -site by a licensed contract disposal firm The STP is routed to the ash pond via the
alternate cooling tower blowdown line
Flue Gas Desulfurization Blowdown — The Flue Gas Desulfurization (FGD) system directs
flue gas into an absorber where a limestone (calcium carbonate) slurry is sprayed Sulfur
dioxide in "the flue gas reacts with the limestone slurry to produce calcium sulfate
(gypsum) This system reclaims any unreacted limestone slurry to be "reused in the
absorber A small blowdown stream is used to maintain the chloride concentration in the
reaction tank The blowdown stream will be discharged to a gypsum settling pond where
suspended solids will be reduced prior to entering a bioreactor The bioreactor utilizes
microbes to reduce soluble contaminants to insoluble forms that then precipitate from
solution The treated wastewater will enter the ash pond secondary settling pond prior to
outfall 002
Storm water from Limestone and Gypsum Piles, —Storm water that'falls on the limestone
and gypsum storage piles will be directed to the ash pond
ASH SLUICE WATER
Fly ash and bottom ash is hydraulically conveyed by an ash sluice pipeline to the ash pond
Water for the transport of ash is withdrawn from the closed circulating water system Some fly
ash is handled dry by a pneumatic system and transported off site The water in the closed

Progress Energy Carolinas, Inc.
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System,Permit Number NC0038317
circulating system is treated with a dispersant (acrylic acid polymer) and water based non -
oxidizing agent for protection of the cooling tower fill
ASH MANAGEMENT AND RECLAMATION
From time to time, fly and bottom ash in the, ash pond may be stacked or relocated within the diked
boundary oUthe ash pond system_ As this pond management activity does not alter the chemical
character of the pond contents, no change in the nature of the discharge to the ash pond is
anticipated
,In the,event a practicable market becomes available, Progress Energy may,'exercise the option of
reclaiming ash from the ash pond system In consideration,of the scope of such an operation, no
additional discharges are expected to result from ash reclamation efforts
HERBICIDE AND.PESTICIDE USAGE IN THE TREATMENT'SYSTEM POND
Herbicides may be used as needed to control nuisance aquatic vegetation These herbicides are
applied by licensed applicators, or persons under the immediate supervision,of a licensed
applicator, m,accordance with the manufacturer's instructions
Pesticides may be used as needed to perform biological assessments These, Pesticides are
applied by licensed applicators, or persons under the immediate supervision of a licensed
applicator, in accordance with,the manufacturer's instructions
STORMWATER RUNOFF
Outfall 004 — Drainaae from Outside Storaae Area
Outfall 004 'is located on the northeast side of the plant site and drains to the reservoir, using
catch basins, storm sewer and vegetative conveyance The industrial activity drained to this
outfall' is primarily the facility's outside storage area including a loading dock Materials that are
not weather sensitive are stored in this area These include empty lubricant drums, structural
steel, pipes, and some large equipment parts Vi tually the entire area is loose gravel, except for
the concrete unloading dock There,'is a storage shed in the back of the outside storage area
This shed contains any chemicals or oils that would be stored in the area , The hazardous waste
central storage area is located in this same shed Sometimes during construction projects; a
portion of the outside storage area m utilized for material storage which could consist of additional
structural steel Due to mobde,equipment,utilization there is,a potential for petroleum release
Outfall 005 — Drainaae from Industrial Area — Main
Outfall 005 is located on the northeast side of the facility and is the end point of the, plant's primary
storm sewer system that drains the "power house block" of the plant using catch basins, storm
sewer and vegetative conveyance Including the area around the boilers and turbine buildings
(both are open, no roof or walls), precipitators, and the roofs of the machine shops, administrative
buildings, warehouse, parking lot, and miscellaneous support facilities, such as the, water supply
treatment, ash storage silo, SCR and transformers Also draining to this outfall through sewers is
the - grassed area intended for Unit 2 at some time in the future The ,grassed Unit 2 area is
sometimes utilized for fabrication of structural steel for construction / maintenance projects This
area consists of gravel and grass areas For outfall 005 the potential pollutants could be coal,
coal ash, sediment, and the chemical make -up of the rain Water Due to mobile equipment
utilization there is a potential for petroleum release
3

Progress Energy Carolinas, Inc.
Mayo,Electric Generating Plant
National Pollutant Discharge Elimination System Permit Number NC0038377
Outfall 006a, b, c, d, e, - Cooling Tower Area
Outfall 006 is located at the eastern, end of the site and drains the area around the cooling towers,
including the roof of the chemical feed budding and associated roads and parking areas using
catch basins, storm sewer and vegetative conveyance In the cooling tower area, there are five
separate outfalls These outfalls involve catch basins and storm -sewers that drain to swales and
then to reservoir The cooling tower itself has a basin for re- circulating cooling water and
therefore, does not directly contribute to storm water runoff For this outfall the'potential pollutants
could include sediment, mist from the cooling tower and chemical make -up of the rainwater A
malfunction of the cooling tower basin level and / or the cooling tower make -up system could
result in a potential release of cooling tower water Due mobile equipment utilization there is a
potential for petroleum release On rare occasions herbicides are used for ground maintenance at
the cooling towers
4

Progress Energy Carolinas, Inc.
Mayo Electric Generating Plant
National,Pollutant Discharge Elimination System Permit Number NCO038377
Outfall 006a, b, c, d, e, - Cooling Tower Area
Outfall 006 is located, at the eastern end of,the site and drains the area around the cooling towers,
including the roof of the chemical feed budding and associated roads and parking areas using
catch ,basins, storm sewer and vegetative conveyance In the cooling tower area, there are five
separate outfalls These outfalls involve catch basins and storm sewers that drain to swales and
then to reservoir The cooling tower itself has a basin for re- circulating cooling water and
therefore, does not directly contribute to storm water runoff For this outfall the potential pollutants
could include sediment, mist from the cooling tower and chemical make -up of the rainwater A
malfunction of the cooling tower basin level and / or the cooling tower make -up system could
result in a potential release of cooling tower water Due mobile equipment utilization there is a
potential for petroleum release On rare occasions herbicides are used ,for ground maintenance,at
the cooling towers

Progress'Energy Carolinas, Inc.
Mayo Electric Generating Plant
National Pollutant Discharge Elimination'System Permit Number NCO038377
Form 2C — Item VI — Potential Discharges Not Covered By Analysis
Chemical
Estimated Average
Frequency
Purpose
Annual Usage
Aluminum sulfate
1,000 gals
Continuous
Improve clan`fier
floc
Polymer
50 lbs.
Continuous
Improve clanfier
floc
Sulfuric acid 93%
79,000 lbs.
As required
Demineralizer
regeneration
Sodium hydroxide
170,000 lbs
As required
Demirferal'izer
regeneration
Sodium molybdate
1,100 lbs.
As required
Corrosion control
Aqua ammonia
25,000 lbs.
Continuous
Boiler water
pH control
Sodium bicarbonate
1,3001bs.
As required
Sewage plant
H control
Sodium
100 gals
Continuous
Potable water
bypochlonte
disinfectant
Polyphosphate
55 gals.
Continuous
Corrosion control
15 % Sodium
1,00 gals
Continuous
pH control
hydroxide
Potable water
Water based non-
7,000 lbs.
As required
Biofoulmg control
,oxidizing agent
Cooling tower
Silicone based
3,900 lbs
As required
Defoamer treatment
defoamer
Cooling tower
Dispersant (acrylic
17,000 lbs
As required
Biofoulmg control
acid polymer)
Cooling tower
Anhydrous
450,060 gals
As required
Air pollution
Ammonia
treatment system
Sulfuric -acid
50,000 lbs.
As required
pH control in ash
and
Sanunl Chlorine
1,00 lbs
Continuous
Sewage plant
Tablets
effluent treatment
Limestone (Calcium
270,400 tons
Continuous
Flue Gas
Carbonate)
Desulfuization

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Mayo Plant
North Carolina
Attachment 5 - Form 2F - Item III - Map
Carolina Power & Light Company
Mayo Electric Generating Plant
Person County
Page 1 of 3

Mayo Plant Outfalls
332' 02.989'N
716V 6.8WW
Ashpond OutfaU 002 �
W V,
38°31' 50.324 °N
78°63' 43.776W
Ash Po 'Influard '►r�
36°31' 46.498 -N
78°63' 20.697'W
Outfall
vC
36°31' 39 649'N
7eSY 16.641'W
OWfaU O,pS
38 °31' 38.042 °N
7e63' 07.236'W 38'31' 34.538'N
outfall o GA 7s P63u 1. 9 °W Cooling
Towers
dminstration
Building
Lab ratory 36'31'30 396 °N
Building 38°31' 29 160 -N O—OWfall 0060 dC
N 78°62' 56 696 °W
outfall oo6D
# 38"31' 28 919 °N t-*3Q1''I28 1 52'N
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CdoUng Tower Dram
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oulfau oosf=' u( outfau oo, �►M'
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a ... u n ..... � x w � >< : e e. o s •• r � 1 .. t • • . • M
f J �
x a
a
4
a
a
J
4
J
a t
3 7c j _ ?� .
&gSu� -a��o Ft S 5
a ... u n ..... � x w � >< : e e. o s •• r � 1 .. t • • . • M

MAUR[AL_ HAND ING
Pour areas of co ith ' dl mg were sevaluaiedsfor-thezr,potentral to,create,dusf or parficles.,.AlsoAhe
,methods,ofrcontrolling- the dust wek& e, aluated W ensure they were satisfactory m indintaiririig
dust- control 'The;areas•e_valuated were-the, coal car�dumper, transfer boom;.conveyor;belt °system.
ah&coal'pile:
The primary method ofcoal car unloading is,the,coal car dumper. The coal -car dumper is
equipped }with a-n( ust;suppression.systein..that is used to rhinrinzze the _generation,,of dust'duirrig-
coal car unloading° Waters pray .- nozzles,are-Desi'tionedauch that-,4s the coal;carJs;.dumped,mt6
the transfer pit; the spray'suppre'sses;ariy dust that coul'd'be- credteddue io >the un_loadmg,act_iuity.
r .q
D fferent,condi'tions�such asvW`11 ,,,raiwand coal.condition dictate the rieedfof 1de usf.
suppiessionsys "t'e'm Wlieriever tle, operators;beheye;the,system 'rs needed; it willbe arsedAto
preventsthe'creatzon.of aaustthat.could' enter the�sto "rm,vvater systernar
A i er operation whe `r`e`there,is_thelpotential;to cfeate.dust,is,tlie,transfer of coal-from-the
conyeyor beltstothe coal -pile. In-order to mtrumize drisVand,'on asmeed.basis „,,the 1?6ortij
r
raised or "`lo;wered
The conveyor,belt.system bas,been evaluated_for =ihe potentiallo ,create -dust. The possiliihty of
the con"veyor,beltsystem =to cfeate�dust= of =com'e,in contact- wr'ths`torm water= hdg_,15e&wied'uced
because�,the system' is covered. E�ffortsare.made to- ,ensure the conveyor,belts stay; covered-.
The, coalspilecis known ,as a "live pile ". This isibecause of the,wayAhe coal is %d or reclaimed t&
the uiiitlbbilefg, Coal t4ulled'.from.the"bottom, of the pile; therefore reducing =the.possibrlity of
dust Storm water that comes.in,contact with he coal' pale is routed to arimNPDE&drscharge point
002- ,(vialihe,ash pond)
SWP3'Material' Hw dhng.doc revision,3 Ju_ne'2005;
_• DFP

Outfalls
Narrat'iVe Description
Outfall- 004_ - Draijaage from>,Outside- Sfo6j�e
-x i -
This outfall is located-on tfie• northeast .side- of`fhe,planf,site,and drainsao the_reservoir; using
;catch basins,and, storm" sewer. The,ii du: sdial ,activity- d"rairied'to'.tius,, fall is- piimanly the
4;,:ii
'facihty's,outside:sioragearea ancludingaloading,dock Nlatenals4that are,�riotn..w.eather`sensit ve
'areYstored in ts,area- Theseihelude einpty`lutiricanfdrums; Am' ctuialisfeel, pipes; and:some
t
'large equipmeni parts., Virtually,the;erifire�area is, loose . — ravel;,except�for'the concrete unloading
W&., There i`s a- small`storaget-shed iii'the.back,of the,outsid6; toragexarea., This, shed contains
any,chemlcalszor:oils•that would be sto "red,ih= the-,'&ea The hazardous waste central storagea&ea
is located m thisaaineslied' Uuririg the SCR construction project, a;portion:of the.`oufside
storage- area,is being_dedicatedj,forla- laydown aiea form atenal storage =wlucfi consists of
structural ste,t,Due= o,mobile equipment, ontsitejhere is a.,potential'for 'petroleum- telease.
Outfal1.005:- 135rainage_from Ind`ustr-ihI Afea
The outfall is located,on the northeast ,side=of'the facility aind ris the.end point of the plant' -s
primary storm,sewer system:that drains the "power house!block" of tlie�plant• Including the "area
ar6u4the boilers grid tuibine buildings (both are -open, no roof orwalls), precipitators, and the
roofs of the, machine�shop's „adhurnstrat'iv_e buildings,: warehouse; parking lot, and - miscellaneous
support facilities,`such_as thewater supply treatment, ash storage silo, and'transformers. Also
drauung,to,this.ouifall fhrouglj.sewets islthe- grassed-,area.intended for °Unit,Zat,sorAe'time'in -the
future: Duriiig some construction- projects,'the,Uriit,2'; -area is,oceasionallyGufih'zed as-structural
steel,and fabn&dtion,.area. 'This'are'a consists,.o'f�gfav_eLand,graas °areas -For q fall",005 the
potential_poll'ufanis could- be,coal, coA�ash, sediment, and,the cherr&al:make-,up.ofthe.rairi
Ovate, llueaoYinobile equipment, on- site -&re, is a potential for, petzoleumxelease
”. 4
Outfal100ba;_b,,,e,, , e­— 'Cooling Tower.Area
Otitfal'1006 is located'at -thi ,6astein, end,of the,site,and drains the area around,theeoolingtowerS;.
includingathe�roof of {the�`chemical,feed, ,,building aridyassociated ,road "s hd-parking'areas�- In the
cooling- tower,area,�there- are;flve separatezoutfalls_ All, these outfalls- involve'.catch basins and
storm sewers- dratrilb swales andtheri to tlie. reservoir:, The - cooling tower,itsel'f"has aVasin
for re- circulating cooling water and therefore, does not. directly contnbute-to;storm water runoff
For this - outfall't)ie pgtential;pollutants could mclude-sedunent,,mistkfrorh the eoolin -tower and
the chemical .make -up °of the rainwater A;rrialfiinetiori of the cooling =towel basin 11.&el and'/ or
SWP3 &tfalls -doc revi'siow4 Jpne�2005
UFP`

Memo 12--520'R June 4, 2.003
1'2576
di-StoI I nwa-fer- fl- oWI -in Stb- rm-1 Waiei;Qu- tf-- af- l'665-
Durui&dry, ppriods',.Stormwater,
W(fdIf 005,'has�a dis6lidrge that is non- storniwater;related
Ibukinj-'It tune,p-efiod,-bf,'july Aqg' usf 1-99,6,an, extensive-invest , gati. , on,,wds cbndu
dted,,toctFv
and,resolveNhere,any watenmight be--dominig ff This investigation ,included alking Imes
om., -' siFW
aqd,qatch-b'asins,,loo�iii how,-�41toAhe drainage:system-,icoriductih -y4tj
g -for any
1-1 - , g,Vis441 observations
dunng,iioh-:n6rhiaI Ai 6rk-houxs; aO.tgyidwingkqwing§;,d-b 't'
o istormwateraffd:ii6n-8tcirmwafdr
drainage systems. Jia addition, dye�)kagj I d"
p ace m ne2riiyi)Soh st& m-wat& dpaifigge-
.- - -'-- -'-. ­5 -y§teps,to
eps4(�fi ctioii��eiiit4� S�rnples�of�he,,wai dry
9 cl,9s-s ,c2rMe- er-I lowing- frbiffE)IIffiff �Wifig,
penods,were-',colle:cted�and analyzedi6fPE;,qW6nfiq cde
-_,;,4ppgaTApqq,,,9dorandbi'b' s .Rone:bf'
any-mdustnal'water'pyeseiit- It-was-666tved that
the fl P-W ��oiild: aim- 6-st"
.s op.a." we hdd 16r�g,penod-iSf-7noidfffall.a--ndth6 flow woul-dmcreaseif' weIad-,recenfrainfall-,
t - &r',-, -, ' - -
The lasi�catcfi`basin bd6rg the-outfaI'l Was--�obsdrved not t'dq-h-ave" any flow 6nfenrig it, however -,.at
'the.fiftM oI utfall- -t' her-e ' W- 66ld ' Ve i,smilla m ounf ,,ofWafer. After seve-ral, lip
ur&dfte,sddrahinkthd
'sourcelof e' wate :it w as. decided that-it � ffi-usf b6,groupd witer'ntmsi a,point'betWeenAhe
Duiffig,,&si ewisitj by-Aradfey BenAeft,,�,'S,dperrvisb ­ - - di
r-,oPDWQj',s.,�tbFmwafer and,-6ebcer P-eririiis�
- , -1 - — --- , -1 -1
9�-;.-an'd b--�fd6mpai�ed by,Joanie Cb6ke'(ESS),jheqe investigations Were
' , 11 I — - d iscuss-ddI
. He stated
e'd
thit ihis,was,not,urisual and-appeardd-not W d'corcehed. Mr. Bennet-was,iifo ned,that,we
d6b6ment- oiihe WeventativeMaintenanc e Visual Monit6fihg1Worksh6et, that '
Wesuspe-Ct'
growfdwatet-as the source from this outfall,(du-n'n&Aop-§tprm pe-nqds). He,appqarp06be'okay'
with the,statement.
bulcie-Phill-- ����d 3
- i'Ps

Progress Energy Carolinas, Inc.
Mayo Electric Generating Plant
National Pollutant Discharge Elimination S`ystem Permit Number NCO038377
Attachment 9
E -mail Documentation Allowing Sampling Results From 2005 Permit
Renewal Application to be used in the 2006 Permit Renewal Application

Page.-1 ,of 2,
Cahoon, Steve
FFom: SergerChemrkov,[sergel chei-nikov @ncmad net]
Sent: 'Thursday; April 06;.2006 8 55 AM
To: Cahoon; Steve
Subject: Req FW Mayo'NPDES Permit-Renewal
Steve,
Lhave,,discussed this is §ue+wi&hSusan and wehave� tided that you can use th&se,§ainples1,'for ,,permit
renewal.
Sergei
Cahoon, ,Sieve- �wroiez
Seigel;
(;don't think Dever received an e- mall "reply<from.ybb4for the„ question, below;(emQhs;based,on'a
phone,call we, ad_ °the afters 6ri ofHF -46 7 2006) 'Please �eply,and contacttmeiif-you have�any,
-further• questions _
- Thanks!
,Steve'Cahoon
Progress,Energy 9ervlce Company - Environmental Ser vices Section,
.Supply,and CCO,�(Carohnas /Georgia),
'net• 770 -7457
Bell- (919) "546 =7457
Mall Gode PEB4 i
-steve cahoonpgnmail tom
---- ongtnal Message--- -
From: Cahoon, Steve
Sent: - Monday „Fe6ruary-27, 2o06 3:54;PNt-
4o: 'seroerch'6mikoJ ncmall net,
- sUOjd& "Mayo NP,DES'Perrk Renewal
Sergei;
-As,you,aretaware P<rogress4Energy °submitted,an NPDES= P,ermf Renewal�application�forrts -Mayo,
•Electnc Generating Plant,on.July 29, 2005_ The =new permit'became;effe6ve -on January,1, 2006
,and.&pires on,March`31, 2007 ,Anew permit - application - package •must`be,submitted "180'days
prior. tothe Match °31„ 2007 ezpliation date The- samplmg e4'nisfor ourLourreriCO -DES permit was
w
conducted'on Apnl 1 „2005efo`r3tlie'wastewater,antl' June 2,x2005 fog <ttieistorm'",W tef
Pfogress�Energy requests permission from the NPDES Unitko'allow the _May- PIbACto use the data
collected from,ttie above referenced sampling events,forour upcomng,NPDES; permit,renewaf
package, that, package „must!be:submltted -,,to„the NPDES Unit,by,approxlmately 6606er 3, 2006
Ttiank-you,for'your consideration If you`have -any questions please,contact -me-
911;8/,2006

Page 2 of 2
$teve Cah66n
Progress Ener§y'Sewibe)ComOdy -Environmental SiRyCces-Setti6b
Supply apd'CC�p (GaTo'linas/Ge-orgia)
Vnet-,.770,-7457
Bell-,(919)-§416-7457
Mad,Code PEB4'
�steQ6zbhd6ri 6qhmM'c&n'
7,-
Oiekgdi -Ch6irfi4k7ov., Ph•.b.
Eh-VikonmdrieAl -Eh ifiOei
,NPDES• Uffit,
,1617 Mail -S#iy-ici- , Cdnterl
RaTeiqlf, ',
- 'NC -27699-'1!6I1
-johone: 59C Jk-'9' 31�50 e�jct-
,7,73 - 83 -
.fax: .919z733-0719
9/18/2006

W Mnl Progress Energy
December 1, 2008
Mr. Gil Vinzani, Supervisor, Eastern NPDES Program
Division of Water Quality
North Carolina Department of Environment and Natural Resources
1617 Mail Service Center
Raleigh, NC 27699 -1617
Subject: Carolina Power & Light Company dba Progress Energy Carolinas, Inc.
Asheville Steam Electric Plant NPDES Permit Number NC0000396
Cape Fear Steam Electric Plant NPDES Permit Number NC0003433
Lee Steam Electric Plant NPDES Permit Number NC0003417
Mayo Steam Electric Plant NPDES Permit Number NCO038377
Roxboro Steam Electric Plant NPDES Permit Number NC0003425
Sutton Steam Electric Plant NPDES Permit Number NC0001422
Weatherspoon Steam Electric Plant NPDES Permit Number NC0005363
NPDES Permit Application Amendment
Dear Mr. Vinzani:
Progress Energy Carolinas, Inc. (PEC) proposes to amend the NPDES Permit application for the
subject facilities to add three additional freeze conditioning agents.
These facilities expect to receive shipments of coal treated with freeze conditioning agents
during the winter months (November 15 through March 15). Freeze conditioning agents, needed
depending upon expected weather conditions during transport to ensure coal does not freeze in
railcars, will be applied at an approximate rate of 2 pints per ton of coal. The product names
used by the various coal mines which supply fuel to Progress Energy Carolinas power plants
could include one or more of the additional following products (MSDSs enclosed):
Product Name Primary Composition
FreeFlow SR -300 30 -50% glycerin
Flomin ST -944 SRA > 50% diethylene glycol mixture and polymer /surfactant blend
Bio -Pro 55 55% glycerin
Coal pile runoff at each of these facilities flows to a treatment system (e.g., ash pond, cooling
pond, settling basin). However, since there is a slight potential that these chemicals could be
present in the wastewater that is ultimately discharged via a permitted outfall, PEC requests that
these products be appended to the NPDES permit application. Note that toxicity testing is a
permit requirement at each power plant outfall which contains the coal pile runoff waste stream.

Mr. Gil Vinzani, NPDES• Unit
December 1, 2068
Page Two
Progress Energy Carolinas, Inc., appreciates the continued cooperation demonstrated by the
Division of Water, Quality staff in responding to its permitting needs. If you have any questions
or comments regarding this information, please contact Robin,Bryson at (919) 546 -3962.
1 certify, under penalty of law, that this document and all attachments were prepared under my direction,or
supervision in accordance with d 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 gdthermg the information, ,the information - submitted its, 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 of fines and imprisonment for knowing violations
Sincerely,
Mr-. Charles M. Gates i
Vice President —Power Generation Carolinas
Progress Energy Carolinas, Inc.
CMG /rb
Enclosures
c: Robin Bryson ,
bc: Leigh Barr
Larry Baxley
Steve Cahoon
Fred Holt
Shannon Langley
Ricky Miller
Billy Milam
Laurie Moorhead
Dulci'e Phillips
Kent Tyndall
;; ;:asc�li, lnc.
11. C) 13ox 1571
101 igh, N-C 27602