NCG500645_Permit (Issuance)_20091218

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
December 18, 2009
Douglas Archer, Manager
Clean Bum Fuels, LLC
269 Pate Road
Raeford, North Carolina 28376
Subject: General Permit No. NCG500000
Certificate of Coverage NCG500645
Clean Burn Fuels, Hoke County Plant
Hoke County
Dear Mr. Archer:
In accordance with your application, the Division of Water Quality (DWQ) hereby forwards this Certificate of
Coverage to discharge under the subject general permit. We issue this permit pursuant to the requirements of
North Carolina's General Statue 143-215.1 and the Memorandum of Agreement between North Carolina and
the US Environmental Protection Agency dated July 17, 2007 (or as subsequently amended).
The following information is included with your permit:
• A copy of the Certificate of Coverage for your facility
• A copy of General Permit NCG500000 for boiler blowdown discharge
• A copy of a Technical Bulletin for General Permit NCG500000
If any parts, measurement frequencies or sampling requirements contained in this general permit are
unacceptable, you have the right to request an individual permit by submitting an individual NPDES permit
application. Unless such demand is made, this Certificate of Coverage shall be final and binding.
Please note that this Certificate of Coverage is not transferable except after notice to the Division of Water
Quality. The Division may modify, or revoke and reissue this Certificate of Coverage. This issuance does not
affect your legal obligations to obtain other permits that may be required by the Division of Water Quality, the
Division of Land Resources, the Coastal Area Management Act, or any other Federal or Local government.
If you have any questions concerning this permit, please contact Joe Corporon at telephone number (919) 807-
6394 or email ([e-mail]).
or
Sincerely,
Coleen 1-1. Sullins, Director
cc: Fayetteville Regional Office, Surface Water Protection Section
Central Files
NPDES General Files
RST Engineering, PLLC, Raleigh, NC, Attn. Stan Taylor
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
.Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity \ Affirmative Action Employer
NorthCarolina
Naturally

Permit NCG500645
.
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
General Permit NCG500000
Certificate of .Coverage NCG500645
To discharge non -contact cooling water, cooling tower and boiler blowdown, condensate, exempt
stormwater, cooling waters associated with hydroelectric operations, and similar wastewaters under the
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended,
Clean Burn Fuels, LLC
is hereby authorized to discharge wastewater from a facility located at the
Clean Burn Fuels, Hoke County Plant
269 Pate Road, Raeford
Hoke County
to receiving waters designated as UT to Hamby Creek, a class C water in the Yadkin Pee Dee River Basin, in
accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and
IV of the General Permit NCG500000, as attached.
This permit shall become effective December 18, 2009.
This Certificate of Coverage shall expire at midnight on July 31, 2011.
Signed this day December 18, 2009.
een H. Sullins., Director
Division of Water Quality
By Authority of the Environmental Management Commission

NC HWY 20
(Southeast of Raeford)
Clean Burn Fuels, LLC
Receiving Stream: Little Marsh Swamp Sub -Basin: 03-07-53
Stream Class: . C, Sw Drainage Basin: Lumber River
Latitude: 34° 56' 36" N Longitude: 79° 08' 34" W
State Grid / USGS Quad: H 22 NW / Raeford, NC
•
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NPDES General Permit NCG500645
Hoke County

DIVISION OF WATER QUALITY
October 9.2009
MEMORANDUM
TO: Dina Sprinkle
Point Source Branch
FROM: Dale Lopez, Environmental Specialist
THROUGH: Belinda S. Henson, Regional Supervisor Surface Water Protect' Sec 'onpo
SUBJECT: Application for NPDES Permit NCG500645
Clean Burn Fuels LLC
269 Pate Road
Raeford, NC 28376
Hoke County
Please find enclosed a staff report and recommendations from the Fayetteville Regional
Office concerning the application for a new NPDES Permit.
If you have any questions or require any further information, please advise.
/DL
Enclosures

To: Permit and Engineering Unit
Water Quality Section
Attention: Dina Sprinkle
Date: October 9, 2009
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY: Hoke
Permit No.: NCG500645
PART 1— GENERAL INFORMATION
1. Facility and Address: Clean Burn Fuels LLC
269 Pate Road
Raeford, NC 28376
2. Date of Investigation: October 1, 2009
3. Report Prepared by: Dale Lopez, Environmental Specialist FRO
4. Person Contacted and Telephone Number:
Douglas Archer [phone] (work # )
[phone] (cell # )
5. Directions to Site:
From Fayetteville, travel on Hwy 301 South, turn right onto Hwy 71 and pass through the
Town of Parkton. A few miles later, in the Town of Lumber Bridge, turn right onto Hwy
20 North. Travel approximately eight miles and turn right onto Pate Road. The plant
site is located on the right hand side of Pate Road (Road # 1431)
6. Discharge Point(s), List for all discharge points:
Latitude: 34°56'36.58" N Longitude: 79°08'33.86" W1
Attach a U.S.G.S. map extract and indicate the treatment facility site and the discharge point on
the map.
U.S.G.S. Quad No.
U.S.G.S. Quad Name:
H 22 NVJI
Raeford, N.C.
7. Site size and expansion area consistent with the application?
IYes.

8. Topography (relationship to the flood plain):
9. Location of the nearest dwelling:
INot evaluated
'Not evaluated
10. Receiving stream or affected surface waters:
a. Classification:
Lumber River Subbasin 03-07-53 Classification C, Swl
b. River Basin No. 'Lumber River 14-22-1-3 and Sub basin No.:
ILUM53
c. Describe receiving stream features and the pertinent downstream uses:
The discharge from the Clean Bum Fuels facility flows to Little Marsh Swamp, at
a point that appears to have a 7Q10 of 0 cfs flow. It is classified as Class C, Sw
waters, that promotes aquatic life propagation and survival, fishing, wildlife,
secondary recreation, and agriculture.
PART II - DISCRIPTION OF WASTES AND TREATMENT WORKS
1. a. Volume of wastewater to be permitted:
(Ultimate Design Capacity)
b. What is the current permitted capacity of the Wastewater Treatment facility?
IN/A
0.08 MGM
c. Actual treatment capacity of the current facility (current design capacity)?
frsT/4
d. Please provide a description of the existing or substantially constructed
wastewater treatment facility:
The Clean Burn Fuels is an ethanol production facility that will ferment kernels of corn
and distill the ethanol that is produced for the purpose of fuel grade ethanol for fuel in
automobiles. The expected start-up date for the facility is January 15, 2010, and it will
have combined blowdown flow of 0.08 MGD from both the cooling tower blowdown and
the boiler blowdown, 46 gallons/minute and 10 gallons/minute, respectively. There is no
construction of wastewater treatment facilities that is proposed, but some treatment,
through degradation of the biocides will be achieved in the stormwater retention pond.
This pond is designed as a wet detention pond with a capacity of 1.695 million gallons
and will provide 21.2 days of detention time before flowing to Little Marsh Swamp.
Inline filters will collect air compressor condensate oil, and the filtered condensate will
flow back into the process. The used oil filters will be sent to landfill. There.is an
on -site septic tank and drainage field for domestic sewage only. If, in the future,
the carbon dioxide byproduct facility becomes feasible for production, then this
facility may pump and haul the wastewater of the CO2 facility to the Raeford
POTW.
e. Possible toxic impacts to the surface waters:
'None
2. Residuals handling and utilizing/disposal scheme:

a. If residuals are being land applied, please specify the DWQ Permit No.
Residual Contractor:
Telephone:
b. Residual stabilization:
c. Landfill:
N/A
N/A
e. Other disposal/utilization scheme (specify):
'There is an on -site septic tank and drainage field for domestic sewage only.
3. Treatment plant classification (attach completed rating sheet):
4. Alternative Analysis Evaluation:
Has the facility evaluated all of the non -discharge options available? Please provide the
regional perspective for each of the options that were evaluated.
Connection to Regional Sewer System:
Discharge to a public sewer was ruled out because it is approximately 21,000 feet to the
nearest location that a public sewer is available. Extensive design work would be
required to develop a reliable cost estimate, but it can be assumed that the installed cost
of a force main to transport the waste would be about $32 per foot. The cost for a sewer
line to this location is estimated to be in excess of $600,000 and is prohibitively
expensive. There is an on -site septic tank and drainage field for domestic sewage only.
Land Application:
Land application was evaluated. The soils on the site are typical of those found
associated with Carolina Bays that have been drained and graded for agriculture. USDA
mapping data indicates that these soils are hydric or partially hydric soils and may have a
shallow depth to the seasonal water table. The soils may be suitable for land application
of the utility blowdown if drainage is provided to lower the seasonal water table
elevation. A more detailed on -site soil analysis will be required to determine if land
application is possible, and if so, how the system must be designed and what, if any,
additional drainage is needed. It is assumed that land application is possible, that no
extensive drainage will be required, that storage equivalent to 30 days of flow will be
required, and that an annual average loading rate of 0.5 inches per week can be achieved.
Based on these assumptions, land application would require irrigation of an estimated 42
acres of land. The storage pond would need to hold approximately 2.5 million gallons.
The cost for a land application system of similar size in North Carolina that was
constructed within the last 18 months was $12,256 per acre, not including storage pond
cost. It is anticipated that the cost of a land application system for the utility blowdown
would be similar. That would make the estimated cost for the land application system
$512,000. The cost of the storage pond is estimated to be $65,000, based on the cost to
construct the existing stormwater detention pond. The total cost of this option is
therefore estimated to be $577,000, which is also prohibitively expensive.

Water Reuse:
Inline filters will collect oil from the air compressor condensate, and the filtered
condensate will flow back into the process for reuse.
PART IV — EVALUATION AND RECOMMENDATIONS
1. The applicant is requesting issuance of a new general wastewater permit for boiler water
blowdown and cooling tower water blowdown at a facility that is presently being
constructed.
2. Based upon a site inspection that was conducted on October 1, 2009, all units were in
process of construction, and the predicted start-up date for this facility is January 15,
2010. There is an on -site septic tank and drainage field for domestic sewage only.
3. Based upon the above information, this Office recommends issuance of the said permit
located at the Clean Burn Fuels plant, southeast of the City of Raeford, in Hoke County.

APPLICATION FOR CERTIFICATE OF COVERAGE
GENERAL PERMIT NCG500000
BOILER AND COOLING TOWER BLOWDOWN
PREPARED FOR:
CLEAN BURN FUELS, LLC
RAEFORD, NORTH CAROLINA
PREPARED BY:
RST ENGINEERING, PLLC
RALEIGH, NORTH CAROLINA
S
September 2009
�ci�D y

Introduction:
Clean Burn Fuels is constructing a fuel grade ethanol production plant
located at 269 Pate Road, Raeford, North Carolina 28376. When
completed the plant will have cooling tower blowdown and boiler
blowdown from the process utilities that will need to be discharged under
the conditions of NPDES Permit NCG500000. This application will provide
the required information for a Certificate of Coverage under that permit.
Proposed Discharge Conditions:
The cooling tower blowdown and boiler blowdown will be mixed together
and the estimated 80,208 gallons per day of combined blowdown flow
discharged to the existing stormwater retention pond. From the pond the
discharge is to Little Marsh Swamp in the Lumber River Basin. There is no
construction of wastewater treatment facilities proposed, but some
treatment, through degradation of the biocides present, will be achieved
in the stormwater retention pond. This pond is designed as a wet
detention pond with an "empty" volume of 1.695 million gallons and will
provide a nominal 21.1 days (506.4 hours) of detention time before the
discharge reaches the concentration of the utility blowdowns. During
periods of rainfall the detention time will be lower, but the rainfall run-off
will provide additional dilution. For that reason, the "no rainfall" scenario
should represent worst case concentrations of components in the
blowdown stream in the receiving waters.
Discharge Chemical Parameters:
Chemicals added to the cooling tower and boilers for process control will
be present in the blowdown. The chemicals will be used for pH control,
corrosion control, and biological control in the boiler and cooling tower.
The Nalco Company is providing the chemicals and will control their
addition with a chemical process controller that receives feedback from
the processes and adds only the amount of chemicals necessary to
maintain proper operating conditions. The following table shows the
chemicals to be used, their purpose, and the anticipated concentration of
the chemical in the proposed discharge.

Table 1 — Chemical use
Total Disc Vol Product Disc.
Product (mgd) Conc (mg/I) Product Use
Cooling
Tower
3DT291 0.080208 29.1 treatment
Corrosion
3DT284 0.080208 33.2 Inhibitor
Actibrom 1318 0.080208 0.02 Biocide
Corrosion
73199 0.080208 4.1 Inhibitor
7320 0.080208 0.5 Biocide
Biocide
Bleach 0.080208 0.03 Activator
Boiler Water
Internal
NexGuard 22310 0.080208 20.9 Treatment
Oxygen
1720 0.080208 5.2 Scavenger
8735 0.080208 13.1 pH stabilizer
Material Safety Data Sheets (MSDS) for each chemical that will be used in
the boiler and cooling tower are attached to this application. The MSDS
sheets, estimates of chemical useage, and estimates of the flows and
chemical characteristics of the blowdown streams have been provided by
the Nalco Company. The quantity of each chemical added and used in the
calculation of in -stream concentration of each chemical was calculated
,41`, using the flows and concentrations provided by Nalco.

There is particular concern about the in -stream impacts of the biocides
used and about the salt content of the blowdown streams. The likely in -
stream concentration of each of these constituents is evaluated below
with the result that there is likely to be no serious impact on water
quality from the blowdown stream.
Salt Content:
Treatment of the boiler feed water to remove hardness will necessitate
the use of ion exchange resins that will be regenerated by backwashing
with a salt solution. Data provided by Nalco, based on analysis of the
boiler feed water source, indicates that a regeneration cycle will be once
each 6.7 days of operation. The regeneration will require approximately
911 gallons of water and will use 225 pounds of salt. The regeneration
backwash will be captured and bled into the total backwash stream over
time to avoid the discharge of a concentrated salt solution to the basin
receiving the blowdown flows. Dispersing 225 pounds of salt into the
backwash flow that will occur in 6.7 days will result in a salt concentration
of 50 mg/I. The water quality standards for the receiving water (Class
Cswp) contain an action level for chlorides of 230 mg/I. This indicates
minimal impact from salt on the receiving stream.
Biocides:
Three of the materials are listed as biocides. These are NALCO 7320, a
broad-spectrum, non -oxidizing biocide approved for use in recirculating
cooling towers, closed loop cooling systems, air washers and brewery
pasteurizers; NALCO ACTI-BROM® 1318 biocide; and sodium hypochlorite
(bleach).
The active ingredient in NALCO 7320 is 2,2-Dibromo-3-
Nitrilopropionamide. The half life of this material is highly pH dependent
with the half life decreasing rapidly as pH increases. Data provided by
Nalco was used to estimate a half life of 31 hours at the pH of 7.5 which
is less than or equal to the pH of the combined blowdown stream. In
order to assure that insignificant concentrations of this and other
biocides carry through into the blowdown discharge, NALCO is proposing
to feed sodium bisulfate into the cooling tower blowdown prior to mixing
with the boiler blowdown as a part of the cooling tower water treatment

package. This will effectively remove the active biocide.
Sodium hypochlorite is a biocide in its own right, but in this application is
used as an activator for the ACTI-BROM 1318. The registered active
ingredient of ACTI-BROM 1318 is an aqueous solution containing sodium
bromide. In its neat form, ACTI-BROM 1318 has no biocidal activity.
However, when added to a chlorine source, the concentrated bromide salt
solution is converted to hypobromous acid, a very efficient, fast -acting
biocide. The hypochlorite is consumed in this reaction, so little (less than
1 mg/I) remains in solution. In order to assure that insignificant
concentrations of this and other biocides carry through into the
blowdown discharge, NALCO is proposing to feed sodium bisulfite into the
cooling tower blowdown prior to mixing with the boiler blowdown. This
will effectively remove the biocide before it discharges to the stormwater
detention pond. Data provided by Nalco states that the half life of ACTI-
BROM 1318 ranges from seconds to days, depending on conditions, with
reducing conditions and the presence of organic matter resulting in the
most rapid decay. The probability that any active biocide will be
discharged to the surface waters is nil.
In order to facilitate calculation of an in -stream concentration, the half life
of NALCO 7320 at a pH of 7.5 was used. The concentrations used in the
calculations are the anticipated concentrations in the combined blowdown
stream as provided by Nalco.
Discussion of half life and LC50 values:
The LC50 values for the biocides used in the process are well
documented. The half life of Nalco 7320 can be estimated with
confidence from available data, and the half life of ACTI_BROM 1318 and
sodium hypochlorite become moot because of the addition of sodium
bisulfate to the cooling tower blowdown prior to discharge. The corrosion
inhibiters, pH adjustment chemicals, and other water treatment chemicals
present some problems. How each of these was handled in the biocide
worksheet calculations is explained below.
Nalco 3DT291 is an internal water treatment that does not contain
hazardous materials according to the MDSD. The half life is not provided,
but the material is readily biodegradable. For this reason, a half life of 5
days was assumed for the calculations. LC50 data is provided for the

product and was used in the calculations.
Nalco 3DT284 is a corrosion inhibitor containing phosphoric acid. No half
life is given, but it is likely that, at the pH of the blowdown, the
phosphoric acid will have reacted to form phosphate salts and that this
will be the material in solution. For this reason a half life of 5 days was
assumed. LC50 values are given for the product itself and these are used
in the calculations.
Nalco 73199 is a corrosion inhibitor containing sodium benzotriazole and
sodium hydroxide. No half life is given but the material is inherently
biodegradable, so a half life of 5 days is assumed. LC50 values are given
for the product itself. The lowest value for a warm water fish was used in
the calculations. It is worth note that the pH of the product, and thus
the material tested, is greater than 11, which will result is fish toxicity.
When mixed in the water treatment process, the toxicity will likely be
lower.
Nalco NexGuard 22310 is an internal boiler water treatment that lists no
hazardous ingredients. No half life is given. The material is known to be
slowly biodegradable, so a half life of 10 days was used. The LC50 value
given for the most sensitive warm water fish, which was less than that for
Daphnia magna, was used in the calculations.
Nalco 1720 is an oxygen scavenger containing sodium and potassium
bisulfite. No half life is given, but the material will react readily with
oxidizing compounds or oxygen in solution or from the atmosphere. For
this reason, a half life of 5 days was assumed. The LC50 for the fathead
minnow was the lowest listed, and this is used in the calculations.
Nalco 8735 is a mixture of sodium and potassium hydroxide and is use for
pH control. No half life is given in the MSDS. The LC50 values given are
for the product itself, but this is not the form in which it will be
discharged. At the pH of the blowdown, 7.5 to 8.0, it will be in the form
of Na and K salts, not the hydroxide. No LC50 values were discovered for
the sodium and potassium salts, so no further calculations were done and
no biocide worksheet is provided.

,••\ Biocide Worksheets:
Biocide worksheets were prepared for each of the biocides used and are
attached. Nalco provided estimated concentrations of each chemical in
the blowdown water from the specific process, and this documentation is
shown on the calculations under "Nalco Notes". The biocide worksheet
asks for feed rates of the biocide, and these are not available. The feed
rates will be variable and will be controlled by real time inputs to a PLC
from each process. It is believed that the designed concentrations in the
discharge as provided by Nalco are the most reliable data to use in
estimating the quantity discharged. The mass discharge rate was
calculated and included based on the given concentrations and flow data
provided. Note that the biocide worksheet indicates that DWQ will
provide the 7Q10 flow of the receiving stream. DWQ was contacted to
get this information, but due to budget constraints, this information could
not be provided, so a worst case estimate of 0 cfs was used in the
calculations.
Biocide worksheets are also included for the corrosion inhibitors and other
inorganic chemicals that will be used. These chemicals will react within
the process and will discharged in the form of dissolved salts. Nalco 8735
is a mixture of sodium and potassium hydroxide use for pH control. At
the pH of the blowdown, 7.5 to 8.0, it will be in the form of Na and K
salts, not the hydroxide. When the total mass loading of additives that is
expected in the discharge is considered, the resulting solution would have
a TDS of 106 mg/I. This is clearly well below any action levels in the
receiving waters.
Alternatives to Discharge to the Surface Waters:
The alternatives of discharge to a public sewer system and land
application rather than a surface water discharge were evaluated.
Discharge to a public sewer was ruled out because it is approximately
21,000 feet to the nearest location that a public sewer is available.
Extensive design work would be required to develop a reliable cost
estimate, but it can be assumed that the installed cost of a force main to
transport the waste would be about $32 per foot. The cost for a sewer
line to this location is estimated to be in excess of $600,000 and is
prohibitively expensive.

Land application in lieu of discharge was also evaluated. The soils on the
site are typical of those found associated with Carolina Bays that have
been drained and graded for agriculture. Soils data from the USDA soil
survey web site shows that the soils on the site are predominately made
up of Coxville loam, Duplin sandy loam, Goldsboro sandy loam, Johnston
loam, and Norfolk loamy sand. The USDA mapping data indicates that
these soils are hydric or partially hydric soils and may have a shallow
depth to the seasonal water table. The data also shows, however that
the saturated hydraulic conductivity (Ksat) is moderate to high, so the
soils may be suitable for land application of the utility blowdown if
drainage is provided to lower the seasonal water table elevation. Portions
of the site are already drained with a ditch system and are actively
farmed, so they may be suitable as is. A more detailed on -site soil
analysis will be required to determine if land application is possible, and if
so, how the system must be designed and what, if any, additional
drainage is needed. For the purposes of this analysis, however, it is
assumed that land application is possible, that no extensive drainage will
be required, that storage equivalent to 30 days of flow will be required,
and that an annual average loading rate of 0.5 inches per week can be
achieved. Based on these assumptions, land application would require
irrigation of an estimated 42 acres of land. The storage pond would need
to hold approximately 2.5 million gallons.
The cost for a land application system of similar size in North Carolina
that was constructed within the last 18 months was $12, 256 per acre,
not including storage pond cost. It is anticipated that the cost of a land
application system for the utility blowdown would be similar. That would
make the estimated cost for the land application system $512,000. The
cost of the storage pond is estimated to be $65,000, based on the cost
to construct the existing stormwater detention pond. The total cost of
this option is therefore estimated to be $577,000, which is also
prohibitively expensive.
Attachments:
Application Form
Material Safety Data Sheets
Calculations
Biocide Worksheets

3DT284:
Actibrom 1318:
73199:
7320:
Bleach:
Flows --
From Greg Jensen (Nalco)
The pH will range from 7.8 to 8.2 for the combined boiler and cooling tower flow.
Remember that the residuals in each blowdown stream are in that flow only.
Example: The nexguard is at 120 PPM in the 9.7 gallons per minute blow down.
Hope this helps. Let me know if you need anything else.
Cooling Tower Chemicals/Reslduels:
3DT291: 35.2 mg/l
40.2 mg/I
22.7 mg/I
5 mg/I
12 mg/I
0.64 mg/I
46 gpm
0.06624 mgd
Total Flow 0.080208 mgd
Storage pond volume from Justin
2.388 Million Gal
1.695 Million Gal
Detention Time in pond
21.1 days --assume no rain
from Billy
Chloride action level in Class Cswp water
230 mg/I
Boiler Chemical Residuals:
22310 120 mg/1
1720 30 mg/I
8735 75 mg/I (0-Alkalinity)
9.7 gpm
0.013968 mgd
Boiler Treatment Blowdown
225 pounds of NaCL every
6.7 days
911 gallons per cycle
537,394 gallons dispersed into
2,034,250 liters dispersed into
discharge has
450,000 grains hardness
29,159,510 mg of hardness
288,994 mg CaCO3
14.3 mg/I CaCO3 in discharge
50.20 mg/I salt in discharge
One gallon is equal to 3.785412 liters
1 grain = 64.79891 milligram
MW of CaCO3= 100.9

Utility Blowdown from Bioler and Cooling Tower —Clean Burn Fuels
Product Total Disc Vol Product Disc.
Identification (mgd) Conc (mg/I)
3DT291
3DT284
Actibroml 318
73199
7320
Sodium
hypochlorite
NexGuard 22310
1720
8735
0.080208
0.080208
0.080208
0.080208
0.080208
0.080208
0.080208
0.080208
0.080208
29.1
33.2
0.000
4.1
0.5
0.000
20.9
5.2
1 3.1
Lowest LC50
(mg/I)
938
3,360
0.038
164
0.53
0.033
1086
382
NA
Product Use
Cooling Tower
treatment
Corrosion
Inhibitor
Biocide
Corrosion
Inhibitor
Biocide
Biocide
Activator
Boiler Water
Internal
Treatment
Oxygen
Scavenger
pH stabilizer
gm/24 hour in
discharge
8,825.29
10,078.88
1,253.59
150.43
6,344.27
1,586.07
3,965.17
Notes:
The LC50 value given for ActiBrom 1318 is for the hyprobormous acid generated from sodium bromide and hypochlorite
Sodium hypochlorite and Actibrom 1318 are removed by adding sodium bidulfite to blowdown as part of process control
Nalco Notes
Note 1
Note 2
Note 3
Actibrom 1318 will be neutralized with bisulfite addition in CT blowdown resulting in NaBr salt.
Column C lists concentration of product in outfall
Colum F lists total mass grams/day discharged

)
Half Life vs pH for 7320 (from Nalco)
Hours pH
1608 5
63 7
3.0 9
let y= 7.5
-0.6377*LN(x)=9.6864-y
Ln(x)= 3.428571429
x= 30.8 hours
Storage pond volume from Justin
2.388 Million Gal
"empty" volume from Billy (designer)
1.695 Million Gal
y =-0.6377Ln(x) + 9.6864
R2 = 0.9996
For Actibrom 1318
Assume same as 7320= 30.8 hours
Note: Actibrom 1318 is an oxidizing biocide and will not persist as long as 7320, particularly in the blowdown stream

Clean Bum Fuels, LLC Data for Hoke County
Equations and Given Values
Assume the following:
Average Daily Discharge (ADD)= 0.0802 MGD
Instream Waste Conc. (IWC)= 100%
Dosage Rate (DR) given in g/24 hr IN BLOWDOWN STREAM from vendor data
Volume = 1,695 MG
Decay Rate (DK )=[(1/HL)*0.69]
Half Life (HL) in days from vendor data or assumed
Degradation Factor (DF)=[(ADD/Volume)+DK]
Discharge conc = [DR/(DF*Volume*3785)]
Receiving Stream Conc. =(Disc Conc)*IWC%/100) =Disc Conc for this case
Individual Product Data
Product
3DT291
3DT284
Actibtom1318
73199
7320
Soduim hypochlorite
22310
1720
8735
RCC
3DT291
3DT284
Actibrom1318
73199
7320
Soduim hypochlorite
22310
1720
8735
DR
8,825.29
10,078.88
1,253.59
150.43
6,344.27
1,586.07
3,965.17
=Disc Conc
7.423
8.477
0.0000
1.054
0.040
0.000
8.502
1.334
NA
Volume
1.695
1.695
1.695
1.695
1.695
1.695
1.695
1.695
1.695
Lowest LC50
938
3,660
0.038
164
1.24
0.033
1086
382
NA
DK HL
0.1380 5.00
0.1380 5.00
0.5371 1.28
0.1380 5.00
0.5371 1.28
0.5371 1.28
0.0690 10.00
0.1380 5.00
NA NA
Allowable OK?
9.380 YES
36.600 YES
0.002 YES
1.640 YES
0.062 YES
0.002 YES
10.860 YES
3.820 YES
NA YES
ADD
IWC
DR
Volume
DK
HL
DF
Disc Conc
RCC
DF
0.185315634
0.185315634
0.5844
0.185315634
0.5844
0.584410103
0.116315634
0.185315634
NA

WOW
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PHASE I: SEDIMENTATION &
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SEC 2