NC0038377_Re-Issuance Application_20050728

2�
y 11i Progress Energy
July 28, 2005
Mr. David Goodrich
North Carolina Department of Environment and Natural Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: CP&L d/b/a Progress Energy Carolinas, Inc. k ',
Mayo Electric Generating Plant
NPDES Permit No NCO038377
Re -issuance Application
Dear Mr. Goodrich:
LI U! J U L 2 9 2005 _
DE'iR - Ft -\(tQUALITY
POINT SOJoCE BR., XH
The current NPDES permit for Mayo Electric Generating Plant located in Person County expires
on January 31, 2006. 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, EPA Application Form 2F — Stormwater Discharges
Associated with Industrial Activity, and permit required storm water analytical sampling data
(Attachment 9), all in triplicate.
With re -issuance of the NPDES permit, Progress Energy requests the following -
Clarification of monitoring requirements for Outfall 001. In the current permit the
requirements for Outfall 001 are to monitor the influent to the ash pond from the cooling
Tower system. We request with issuance of this permit that this outfall be labeled an C)),'
internal outfall, and the infrequent discharge of the cooling tower to the lake remain
external outfall 001 and only be sampled during discharge events (usually once per
year)as required in the current permit.
Include a statement for Outfall 001requiring the monitoring of free available chlorine
only if chlorine is added to the system.
• Eliminate the analytical monitoring requirements for storm water. The results of the
permit required monitoring and renewal monitoring demonstrate that contamination from
storm water runoff from the plant site is not harmful to the environment .
Reduce the monitoring frequency for oil and grease and total suspended solids at Outfall
002. Currently the permit required frequency for both is twice per month. Quarterly or
monthly monitoring should be sufficient to demonstrate compliance with the effluent
limitations.
Progress Energy Carolinas, Inc
Maw Steam Plant
I bKo Boston Read
Huxbom Nt 2hM

Progress Energy is planning on installing a Flue Gas Desulfurization (FGD) system at Mayo
Electric Generating Plant in response to the North Carolina Clean Air Initiative. Operation of the
system is projected to begin in the first quarter of 2009. The FGD system removes SO2 by
mixing the flue gas with a limestone slurry producing gypsum. With this FGD operation a new
wastewater stream will be produced. Wastewater treatment options will be finalized by the end
of 2006 and an amendment to this permit application and a permit modification request will be
submitted at that time.
With regard to 316(b), the Mayo Plant has a design flow of the closed cycle cooling system make
up of 23.7 MGD, which is less than the 50 MGD required to fall under 316(b) Phase II
regulations.
If there are any questions regarding the enclosed information, please contact Steve Cahoon at
[phone].
I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate,
and complete I am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations.
Sincerely,
Robert E. Beasley- Manager
Mayo Electric Generating Plant
Attachments

Mayo Plant
North Carolina
Attachment I - Form 1 - Item Xl -.flap
Carolina Power & Light Company
Mayo Electric Generating Plant
Person County
Page 2 of 2

16 Ouffal 1002
11 Cooling Towers 10 Mayo Reservoir
14 Outfall 001
1
14
2 2
Misc Equipment Heat
Exchangers — Intake Structure
18 Alternate
13
Storm water
3
—10 Raw Water
Treatment
F
5 6
Potable &
Sanitary
I 4
IF
Condensers Fire Water Storage Sewage
Ash Sluice Protection
treatment
WaterAL
12
IF
Boder & Turbine Condensate Ion Exchange Oily Waste
Storage Treatment
9
7
Ash Pond
15
Coal Pile
Runoff
17
ondary Containment
anhydrous ammonia
tanks
Misc low
Volume

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
Boder blowdown to ash pond
10
2 MG/event 1/yr
Cooling Tower basin drain to Mayo
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 (primary route)
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

Progress Energy Carolinas, Inc.
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System Permit Number NC0038377
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 boder flame Water is withdrawn from the Mayo
Reservoir as required to make up evaporative losses from the cooling tower, boder 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 boder 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 pneumatic 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 Elimination 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 Boder 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 the ash pond.
Sewage Treatment Plant (STP) — Sanitary wastes are treated on-site by an extended
aeration treatment plant The plant is designed for 0 0125 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
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
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 of the 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
2

Progress Energy Carolinas, Inc.
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System Permit Number NC0038377
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, in 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
'We]-.48i%,1021N NIIhiIs] a
Outfall 004 — Dramaae 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 Virtually 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 is utilized for material storage which could consist of additional
structural steel. Due to mobile equipment utilization there is a potential for petroleum release
Outfall 005 — Drainage 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
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
3

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 clarifier
floc
Polymer
50 lbs.
Continuous
Improve clarifier
floc
Sulfuric acid 93%
79,000 lbs.
As required
Demineralizer
regeneration
Sodium hydroxide
170,000 lbs.
As required
Demineralizer
regeneration
Sodium molybdate
1,100 lbs.
As required
Corrosion control
Aqua ammonia
25,000 lbs.
Continuous
Boiler water
pH control
Sodium bicarbonate
1,300 lbs.
As required
Sewage plant
pH control
Sodium
100 gals.
Continuous
Potable water
hypochlonte
disinfectant
Polyphosphate
55 gals
Continuous
Corrosion control
15 % Sodium
100 gals.
Continuous
pH control
hydroxide
Potable water
Water based non-
7,000 lbs.
As required
Biofouling control
oxidizing agent
Cooling tower
Silicone based
3,900 lbs.
As required
Defoamer treatment
defoamer
Cooling tower
Dispersant (acrylic
17,000 lbs.
As required
Biofouling control
acid polymer)
Cooling tower
Anhydrous
450,000 gals.
As required
Air pollution
Ammonia
treatment system
Sulfuric acid
50,000 lbs.
As required
pH control in ash
pond
Sanunl Chlorine
100 lbs
Continuous
Sewage plant
Tablets
effluent treatment

Progress Energy Carolinas, Inc.
Mayo Electric Generating Plant
National Pollutant Discharge Elimination System Permit Number NCO038377
Attachment 5
Form 2F — Item III Site Drainage Map

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^' Scales
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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

3e3
V5
Ash
Mayo Plant Outfalls
Building
Outfalls,
/V/ Road.
Cooling
Towers
31' 30.396"N
®0_ 78° 52' 55.505"W
3fi 31' 29.160"N Outfall 006C
462'56.595"W
Outfall 006D
"363 1' 28.152"N
36n31' 28.919"N 78 52' 55.735'W
78'52'57.022"W
Cooling Tower Drain
Outfall 006E Outfall 001
500 0 500 1000 Meters

'COAL STORAGE
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MATERIAL HANDLING
Four areas of coal handling were evaluated for their potential to create dust or particles Also the
methods of controlling the dust were evaluated to ensure they were satisfactory in maintaining
dust control. The areas evaluated were the coal car dumper, transfer boom, conveyor belt system
and coal pile.
The primary method of coal car unloading is the coal car dumper. The coal car dumper is
equipped with a dust suppression system that is used to minimize the generation of dust during
coal car unloading. Water spray nozzles are positioned such that as the coal car is dumped into
the transfer pit, the spray suppresses any dust that could be created due to the unloading activity.
Different conditions such as wind, rain and coal condition dictate the need for the dust
suppression system. Whenever the operators believe the system is needed, it will be used to
prevent the creation of a dust that could enter the storm water system.
Another operation where there is the potential to create dust is the transfer of coal from the
conveyor belts to the coal pile. In order to minimize dust and on as need basis, the boom is
raised or lowered.
The conveyor belt system has been evaluated for the potential to create dust. The possibility of
the conveyor belt system to create dust or come in contact with storm water has been reduced
because the system is covered Efforts are made to ensure the conveyor belts stay covered
The coal pile is known as a "live pile" This is because of the way the coal is fed or reclaimed to
the unitiboilers. Coal is pulled from the bottom of the pile, therefore reducing the possibility of
dust. Storm water that comes in contact with the coal pile is routed to an NPDES discharge point
002 (via the ash pond)
SWP3 Material Handling doc revision 3 June 2005
DFP

Outfalls
Narrative Description
Outfall 004 — Drainage from Outside Storage
This outfall is located on the northeast side of the plant site and drains to the reservoir, using
catch basins and storm sewer. 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. Virtually the entire area is loose gravel, except for the concrete unloading
dock. There is a small 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. During the SCR construction project, a portion of the outside
storage area is being dedicated for a laydown area for material storage which consists of
structural steel. Due to mobile equipment, on-site there is a potential for petroleum release.
Outfall 005 — Drainage from Industrial Area
The outfall 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. 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, and transformers. Also
draining to this outfall through sewers is the grassed area intended for Unit 2 at some time in the
future. During some construction projects, the Unit 2 area is occasionally utilized as structural
steel and fabrication area 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, on-site there is a potential for petroleum release.
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 building and associated roads and parking areas In the
cooling tower area, there are five separate outfalls. All these outfalls involve catch basins and
storm sewers that drain to swales and then to the 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
the chemical make-up of the rainwater A malfunction of the cooling tower basin level and / or
SWP3 Outfalls doc revision 4 June 2005
DFP

Memo to file: 12520 R June 4, 2003
12576
Non-Stormwater flow in Stormwater Outfall 005
During dry periods, Stormwater Outfall 005 has a discharge that is non-stormwater related.
During the time period of July — August 1996 an extensive investigation was conducted to try
and resolve where any water might be coming from. This investigation included walking lines
and catch basins loolking for any flow into the drainage system, conducting visual observations
during non -normal work hours, and reviewing drawings of both stormwater and non-stormwater
drainage systems. In addition, dye was placed in nearby non-stormwater drainage systems to
ensure no cross -connections existed. Samples of the water flowing from Outfall 005 during dry
periods were collected and analyzed for pH, chlorine, appearance, odor and biocides. None of
the analyses indicated any industrial water present. It was observed that the flow would almost
stop after we had long period of no rainfall and the flow would increase if we had recent rainfall.
The last catch basin before the outfall was observed not to have any flow entering it, however, at
the final outfall there would be a small amount of water. After several hours of researching the
source of the water it was decided that it must be groundwater intrusion at a point between the
catch basin and the outfall.
During a site visit by Bradley Bennett, Supervisor of DWQ's Stormwater and General Permits
Unit, and accompanied by Joanie Cooke (ESS), these investigations were discussed. He stated
that this was not unusual and appeared not to be concerned. Mr. Bennett was informed that we
document on the Preventative Maintenance Visual Monitoring Worksheet that we suspect
groundwater as the source from this outfall (during non -storm penods). He appeared to be okay
with the statement.
41aw
Dulcie Philli s
P
w
Memo to file: 12520 R June 4, 2003
12576
Non-Stormwater flow in Stormwater Outfall 005
During dry periods, Stormwater Outfall 005 has a discharge that is non-stormwater related.
During the time period of July — August 1996 an extensive investigation was conducted to try
and resolve where any water might be coming from. This investigation included walking lines
and catch basins loolking for any flow into the drainage system, conducting visual observations
during non -normal work hours, and reviewing drawings of both stormwater and non-stormwater
drainage systems. In addition, dye was placed in nearby non-stormwater drainage systems to
ensure no cross -connections existed. Samples of the water flowing from Outfall 005 during dry
periods were collected and analyzed for pH, chlorine, appearance, odor and biocides. None of
the analyses indicated any industrial water present. It was observed that the flow would almost
stop after we had long period of no rainfall and the flow would increase if we had recent rainfall.
The last catch basin before the outfall was observed not to have any flow entering it, however, at
the final outfall there would be a small amount of water. After several hours of researching the
source of the water it was decided that it must be groundwater intrusion at a point between the
catch basin and the outfall.
During a site visit by Bradley Bennett, Supervisor of DWQ's Stormwater and General Permits
Unit, and accompanied by Joanie Cooke (ESS), these investigations were discussed. He stated
that this was not unusual and appeared not to be concerned. Mr. Bennett was informed that we
document on the Preventative Maintenance Visual Monitoring Worksheet that we suspect
groundwater as the source from this outfall (during non -storm penods). He appeared to be okay
with the statement.
41aw
Dulcie Philli s
P

Permit Number NCO038377
Certificate of Coverage Number: NCG
STORMWATER DISCHARGE OUTFALL (SDO) MONITORING REPORT
or SAMPLES COLLECTED DURING CALENDAR YEAR: 2005
FACILITY NAME Progress Energy — Mayo Plant
PERSON COLLECTING SAMPLE(S) Bert Lea and Mike Talley
CERTIFIED LABORATORY(S) Tritest, Inc. Lab # 067
Lab #
Part A. Specific Monitoring Requirements
(This monitoring report shall be received by the Division no later than 30 days from R
the date the facility receives the sampling results from the laboratory.)
COUNTY Person
PHONE NO. [phone]
(SIGNATURE 0I4ERMITTEE OR DESIGNEE)
By this signature, I certify that this report is accurate complete to the best of my knowledge
Outfall
No.
Date
Sample Collected
50050
Total Flow
6
and Grease
00340
Chemical Oxygen
Demand
00530
Total Suspended
Solids
mo/dd/ r
MG
k54l/"1
m /I
m 1
004
06/02/2005
0.072
10.9
26
005
06/02/2005
0.361
<10.0
4.2
006A
06/02/2005
0.006
56
<10 0
23
Does this facility perform Vehicle Maintenance Activities using more than 55 gallons of new motor oil per month? _yes X no (if yes, complete Part B)
Part B: Vehicle Maintenance Activity Monitoring Requirements
Outfall Date 50050
No. Sample Total Flow
Collected
00556
Oil and
Grease
00530 00400
Total Suspended pH New Motor
Solids Oil Usage
mo/dd/ r MG
mg/1
mg/1 unit al/mo
STORM EVENT CHARACTERISTICS:
Date 06/01/2005
Total Event Precipitation (inches): 1.2
Event Duration (hours): 50.5
(if more than one storm event was sampled)
Date
Total Event Precipitation (inches):
Event Duration (hours):
Mad Original and one copy to:
Division of Water Quality
Attn• Central Files
1617 Mad Service Center
Raleigh, North Carolina 27699-1617
"I certify, under penalty of law, that this document and all attachments w} re 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."
(Signature of Permittee)
7,28�oS
(Date)
Form SWU-246-051100