DEQ-CFW_00059837

s
DuPont Fluoroproducts
Fayetteville Works Plant
22828 NC Highway 87 West
Fayetteville, NC 28306-7332
June 15, 2011
Mr. Jon Risgaard, Unit Supervisor
N.C. Division of Water Quality
Land Application Unit
1601 Mail Service Center
Raleigh, NC 27699
SUBJECT: Distribution of Residual Solids Permit Application
DuPont Company — Fayetteville Works
Cumberland County, North Carolina
Dear Mr. Risgaard:
The DuPont Company — Fayetteville Works hereby submits one original and two copies of a
permit application for the distribution of residuals solids. The application package includes the
Distribution of Residuals Solids Form (DRS 070807) and DRS additional information, Residuals
Source Certification Attachment (RSCA 070807), vicinity map, process flow diagram,
justification for residuals production rate, sampling plan, and laboratory analytical reports. The
application and attachments describe the treatment facility, generation and characteristics of
residual solids, and proposed application.
DuPont is proposing to remove accumulated river water sediment solids generated in the
treatment of water from the Cape Fear River for non -potable uses at the facility and apply them
exclusively within the DuPont Company — Fayetteville Works site. Clarifier and filter backwash
solids generated during the water treatment process are accumulated in two sediment retention
basins. When one of the basins is fall, the solids are allowed to dry. The process of
accumulating and drying the solids takes approximately 10 to 15 years. Analytical tests show
that the residuals have very low nutrient and metal concentrations. The application of the
residual solids at the site will take place sometime after permit issuance and every 5 to 10 years
thereafter.
The area where the solids will be applied is used as a Borrow Area and currently a grass cover is
maintained in that portion of the area. The Borrow Area is covered by an Erosion and
Sedimentation Control Plan that is under the jurisdiction of the N. C. Division of Land
E.!. du Pont de Nemours and Company
RECEIVED / DENR / DWQ
Aquifer Prnj,,grti,')n SAct;on
JUN 2 0 2011
DEQ-CFW 00059837

Mr. Jon Risgaard
N.C. Division of Water Quality
June 15, 2011
Resources. The Borrow Area is used to place soil and inert debris from on -site excavations and
to provide fill material for on -site projects. The portion of the Borrow Area where the sediment
solids will be placed will not be used as fill material in the foreseeable future.
The following is a list of all items and attachments included in the application package:
• Distribution of Residuals Solids Form (DRS 070807)
• Residuals Source Certification Attachment (RSCA 070807)
• Distribution of Residuals Solids Additional Information
• Residuals Information Sheet
• Figure 1 USGS Topographic Map
• Figure 2 Site Layout
• Attachment 2-a Vicinity Map
• Attachment 2-b Process Flow Narrative and Diagram
• Attachment 2-c Quantitative Justification for Residuals Production
• Attachment 2-d Sampling Plan
• Attachment 2-e Laboratory Analytical Reports and Operational Data
• Attachment 2-f Sampling Locations Figure
• Attachment 2-g Site -Wide Well Monitoring Locations
• Attachment 2-h Residuals Solids Operations and Maintenance Plan
• Attachment 2-i Plant Available Nitrogen (PAN) Calculation
If you have any questions or need more information regarding this application submittal please
contact me at either 910-678-1155 or via [e-mail].
Attachments
Michael E. Johnson
Environmental Manager
DIED I DENR I DVJQ
Aauit protertion spr.,tion
JUN 2 0 2011
DEQ-CFW 00059838

Distribution of Residuals Solids Form
DRS 070807
RECEIVED / DENR / DWO
Aquifer Proie! tinn .gedion
JUN 20 2011
DEQ-CFW 00059839

State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
DISTRIBUTION OF RESIDUAL SOLIDS
(FORM: DRS 070807)
(THIS FORMMAYBE PHOTOCOPIED FOR USE AS AN ORIGINAL)
Application Number:
I. OWNERSHIP INFORMATION:
1. Specify whether the process facility is owned by:
❑ County; ❑ Federal; ❑ Municipal; ❑ State; ® Non -Government.
2. Owner's name (please specify the name of the municipality, corporation, individual, etc.):
(to be completed by DWQ)
DuPont Company — Fayetteville Works
Mailing address: 22828 NC Highway 87 W
City: Fayetteville State: NC Zip: 28306-7332
Physical address: 22828 NC Highway 87 W
City: Duart Township, Bladen County State: NC Zip: 28306-7332
Telephone number: ( 910 ) 678-1314 Facsimile number: ( 910 ) 678-1247
E-mail address: not applicable
3. Signing official's name and title: (See Instruction A)
Ellis H. McGaughy, Plant Manager
Mailing address: 22828 NC Highway 87 W
City: Fayetteville State: NC Zip: 28306-7332
Physical address: 22828 NC Highway 87 W
City: Duart Township, Bladen County State: NC Zip: 28306-7332
Telephone number:( 910 ) 678-1224 Facsimile number:( 910 ) 678-1247
E-mail address: Ellis H McGaughy(r)usa dupont com
H. PERMIT INFORMATION:
1. Application is for: ® new; ❑ modified; ❑ renewed permit (check all that apply).
2. Fee Submitted: $ 1,310 (See Instruction B)
3. If this application is being submitted to renew or modify an existing permit, provide the following:
Permit number:
Most recent issuance date:
FORM: DRS 070807
(please attach a copy of the existing permit).
and the expiration date:
RECEIVED / DENR / DWQ
Page 1 of 4 Aquifer Protartion SQction
JUN 2 0 2011
Attachment Order 1
DEQ-CFW 00059840

III. FACILITY INFORMATION:
1. Name of facility where residuals are processed:
DuPont Company — Fayetteville Works
Physical address: 22828 NC Highway 87 W
City: Duart Township Bladen County State: NC Zip: 28306-7332
Telephone number: ( 910 ) 678-1314 Facsimile number: ( 910 ) 678-1247
County where facility is located: Bladen
Latitude: 34050' 40" N Longitude: 780 50' 01" W of residual process facility.
2. Facility contact (person familiar with residuals preparation):
Michael E. Johnson
Mailing address: 22828 NC Highway 87 W
City: Fayetteville State: NC Zip: 28306-7332
Physical address: 22828 NC Highway 87 W
City: Duart Township, Bladen County State: NC Zip: 28306-7332
Telephone number: ( 910 ) 678-1155 Facsimile number: ( 910 ) 678-1247
E-mail address: michael e iohnson(a usa dupont com
3. Program contact person and/or consulting firm who prepared application (If different from the above):
Teresa Rodriyuez/AECOM
Mailing address: 8540 Colonnade Center Drive Suite 306
City: Raleigh State: NC Zip: 27615
Physical address: same
City:
State: Zip:
Telephone number: ( 919 ) 239-7173 Facsimile number: ( 919 872-7996
E-mail address: Teresa rodriguez2(a)aecom com
4. Is the residual process facility also the generator? ® Yes; ❑ No
5. If the residual process facility is not the same as the generator, please specify delivery frequency and quantity of residual to
be processed:
6. Length of residuals storage at facility: 1,460 days (the Division requires a minimum 30 days storage in
units that are separate from treatment system, i.e. not in clarifiers, aeration basins, etc.).
IV. RESIDUALS QUALITY INFORMATION:
1. Specify if residuals are regulated under (check one): ❑ 40 CFR Part 503 or ® 40 CFR Part 257.
FORM: DRS 070807 Page 2 of 4 Attachment Order 1
DEQ-CFW 00059841

2. Specify how these residuals will be distributed:
❑ sold or given away in bags or other containers; ❑ lawn (bulk); ❑ home garden (bulk);
® other; On site Borrow Area
3. Complete the following if residuals are to be mixed with other materials:
Type of Materials Amounts to be added
ner 1.0 dry ton of residuals (dry ton)
4. Approximate amounts of the final product to be distributed 9,257 dry tons per year.
5. Provide a description of the onsite storage management plan for the treated residuals (including estimated average and
maximum storage times prior to distribution): Residuals are allowed to dry in the basin for approximately 4 years.
V. ADDITIONAL REQUIRED INFORMATION:
1. Provide a narrative explaining the following: See Attached Additional Information Sheet
a. How will the materials be handled and transported from where the residuals were produced to where it will be
treated?
b. How will the residuals be processed/treated (attach process flow diagram).
c. How will leachate collection be handled?
d. Where will the residuals be stored until processed?
e. How will the final product be distributed (packaging)?
2. Attach a marketability statement detailing destinations and approximate amounts of the final product to be distributed.
3. Provide either a label that shall be affixed to the bagged processed residual or an information sheet that shall be provided to
the person who receives the processed residual. The label or information sheet shall contain, at a minimum, the following
information:
a. The name and address of the person who prepared the residual that is sold or given away in a bag or other container for
application to the land.
b. A statement that application of the residual to the land is prohibited except in accordance with the instructions on the
label or information sheet.
c. A statement that the residuals shall not be applied to any site that is flooded, frozen or snow-covered.
d. A statement that adequate procedures shall be provided to prevent surface runoff from carrying any disposed or stored
residuals into any surface waters.
e. Information on all applicable setbacks in accordance with 15A NCAC 02T .1108(b).
f. A statement that the residuals shall be applied at agronomic rates and recommended rates for intended uses.
FORM: DRS 070807 Page 3 of 4 Attachment Order 1
DEQ-CFW 00059842

Professional Engineer's Certification: (Application Packages Involving New or Changes to Treatment and Storage Units) N/A
I,
attest that this application for
has been reviewed by me and is accurate and complete to the best of my knowledge. I further attest that to the best of my knowledge
the proposed design has been prepared in accordance with the applicable regulations. Although certain portions of thus submittal
package may have been developed by other professionals, inclusion of these materials under my signature and seal signifies that I have
reviewed this material and have judged it to be consistent with the proposed design.
North Carolina Professional Engineer's Seal, Signature, and Date:
Applicant's Certification:
The applicant or any affiliate has not been convicted of an environmental crime, has not abandoned a wastewater facility without
proper closure, does not have an outstanding civil penalty where all appeals have been exhausted or abandoned, are compliant with any
active compliance schedule, and do not have any overdue annual fees under Rule 2T .0105.
X Yes ❑ No, Explain;
I, Ellis H. McGaughy , attest that this application for Distribution of Residual Solids
has been reviewed by me and is accurate a complete to the best of my knowledge. I understand that if all required parts of this
application are not completed and that if all r uired supporting information and attachments are not included, this application package
will be returned to me as incomplete. /
Signature Date
THE COMPLETED APPLICATION PACKAGE,
INCLUDING ALL SUPPORTING INFORMATION AND MATERIALS,
SHOULD BE SENT TO THE FOLLOWING ADDRESS:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
AQUIFER PROTECTION SECTION
LAND APPLICATION UNIT
By U.S. Postal Service:
1636 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1636
By Courier/Special Delivery:
2728 CAPITAL BOULEVARD
RALEIGH, NORTH CAROLINA 27604
TELEPHONE NUMBER: [phone]
DECEIVED / DENR / DWQ
FORM: DRS 070807 Page 4 of 4 Aquifer Prntert ^n Section Attachment Order 1
JUN 2 0 2011
DEQ-CFW 00059843

Residuals Source Certification Attachment
RSCA 070807
RECEIVED / DENR / DWQ
Aquifer Prolenhon Section
JUN 20 2011
DEQ-CFW 00059844

t
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
RESIDUALS SOURCE CERTIFICATION ATTACHMENT
(FORM: RSCA 070807)
(THIS FORM MAY BE PHOTOCOPIED FOR USE AS AN ORIGINAL)
Applicant's name: DuPont Company — Fayetteville Works
Check all that apply: ® NEW RESIDUALS PROGRAM ❑ RENEWED RESIDUALS PROGRAM
❑ INCREASE ❑ DECREASE the maximum permitted annual dry tonnage for this residuals source -
generating facility certified for this residuals program.
Current: None Dry Tons/yr. and proposed: 9257 Dry Tons/yr.
X ADD ❑ DELETE this residuals source -generating facility to/from those certified for this
residuals program.
❑ OTHER Explain:
I. RESIDUALS SOURCE -GENERATING FACILITY INFORMATION (See Instruction B.):
1. Name of facility: DuPont Company — Fayetteville Works
2. Facility permit holder:
Facility permit holder is (check one): ❑ federal, ❑ state, ❑ local government, or ® private.
Facility permit number:
Facility permit issued by (check one): ® Div. of Water Quality, ❑ Div. of Environmental Health, or
❑ other (explain:
3. If the facility permit is not issued by the Div. of Water Quality, complete the following:
a. Facility contact person and title: _
Facility complete mailing address:
City:
Telephone number:
E-mail address:
b. Facility complete location address:
City:
Latitude:
4. County where facility is located: Bladen
State:
Facsimile number:
State:
and longitude:
Zip:
Zip:
5. Purpose of the facility (check one):
❑ treatment of municipal wastewater, ❑ treatment of 100% domestic wastewater,
❑ treatment of potable water, ❑ treatment of 100% industrial wastewater,
❑ treatment of industrial wastewater mixed with domestic wastewater, or
(approximate percentages: % industrial and % domestic)
® other (explain: Treatment of non -potable water from Cape Fear River )
FORM: RSCA 070807 Page 1 of 7 RECEIVED / DENR / DWQ Attachment Order 2
Aquifer Prntertion Section
JUN 2 0 2011
DEQ-CFW 00059845

6. Does the facility have an approved pretreatment program: ❑ yes ® no
7. Facility permitted/design flow: 3_ MGD and facility average daily flow: _2.5 MGD.
8. Average amount of residuals being generated at this facility 1,500 dry tons per year.
9. Specify the following regarding treatment and storage volumes available at the facility:
Type and volume of residuals treatment: Raw water (Cape Fear River) treatment system residuals solids
from clarifier and backwash from the gravity filters. Approximately 9,257 dry tons of solids are
accumulated in each basin.
Type and volume of residuals storage (i.e., outside of residuals treatment units): Two 4.2 acre
filter residual solids retention basins
II. RESIDUALS QUALITY INFORMATION (See Instruction C.):
1. Specify if residuals are regulated under (check one): ❑ 40 CFR Part503 or ® 40 CFR Part257.
2. Specify if residuals are intended for (check one):
® Land Application/Distribution (Class A or Equivalent).
Complete all items EXCEPT Items II.4b., 7b., and 7c.
❑ Land Application (Class B or Equivalent).
Complete all items EXCEPT Items II.4b., 7a., and 7c.
❑ Surface Disposal.
Complete all items EXCEPT Items 11.4a., 5., 7a., 7b., and 8.
***FORM: RSCA CONTINUES ON NEXT PAGE***
FORM: RSCA 070807 Page 2 of 7 Attachment Order 2
DEQ-CFW 00059846

3. Hazardous Waste Determination: Complete the following to demonstrate that the residuals are non-
hazardous under RCRA:
a. Are the residuals are listed in 40 CFR §261.31-§261.33: ❑ yes ® no.
If yes, list the number(s):
b. Specify whether or not the residuals exhibit any of the characteristics defined by 40 CFR §261.21-
§261.24: ❑ yes ® no. Fill in the following tables with the results of the latest toxicity
characteristic leaching procedure (TCLP) analysis as well as those for corrosivity, ignitability, and
reactivity: laboratory: Compuchem and date of analysis: 3/25/10
Passed corrosivity test: ® yes ❑ no. pH: 5.2 s.u. (2 < pH < 12.5).
Passed ignitability test: ® yes ❑ no. Flashpoint: > 140_ T (> 140°F).
Passed reactivity test: ® yes ❑ no. HCN: _< 250_ mg/kg (<250) & H2S: _< 250, mg/kg (<500).
TCLP Parameter
Limit
(mg/L)
Result
(mg/L)
TCLP Parameter
Limit
(mg/L)
Result
(mg/L)
Arsenic
5.0
0.017
Hexachlorobenzene
0.13
< 0.025
Barium
100.0
0.1
Hexachloro-1,3-Butadiene
0.5
< 0.025
Benzene
0.5
< 0.025
Hexachloroethane
3.0
< 0.025
Cadmium
1.0
< 0.5
Lead
5.0
< 0.009
Carbon Tetrachloride
0.5
< 0.025
Lindane
0.4
< 0.0005
Chlordane
0.03
< 0.0086
Mercury
0.2
< 0.1
Chlorobenzene
100.0
< 0.025
Methoxychlor
10.0
< 0.005
Chloroform
6.0
< 0.025
Methyl Ethyl Ketone
200.0
< 0.063
Chromium
5.0
0.0055
Nitrobenzene
2.0
< 0.025
m-Cresol
200.0
< 0.05
Pentachlorophenol
100.0
< 0.05
o-Cresol
200.0
< 0.05
Pyridine
5.0
< 0.025
p-Cresol
200.0
< 0.05
Selenium
1.0
0.018
Cresol
200.0
< 0.05
Silver
5.0
< 0.5
2,4-D
10.0
< 0.025
Tetrachloroethylene
0.7
< 0.025
1,4-Dichlorobenzene
7.5
< 0.025
Toxaphene
0.5
< 0.025
1,2-Dichloroethane
0.5
< 0.025
Trichloroethylene
0.5
< 0.025
1,1-Dichloroethylene
0.7
< 0.025
2,4,5-Trichlorophenol
400.0
< 0.05
2,4-Dinitrotoluene
0.13
< 0.025
2,4,6-Trichlorophenol
2.0
< 0.05
Endrin
0.02
< 0.001
2,4,5-TP (Silvex)
1.0
< 0.005
Heptachlor and its Hydroxide
0.008
< 0.0005
Vinyl Chloride
0.2
< 0.025
FORM: RSCA 070807 Page 3 of 7 Attachment Order 2
DEQ-CFW 00059847

4. Metals Determination: Complete one of the following tables (i.e., as applicable) to demonstrate that the
residuals do not violate the ceiling concentrations for metals regulated under 15A NCAC 02T .1105.
a. For Class A or Class B: Fill in the following table with the results of the latest analyses (i.e., on a dry
weight basis) for the following metal parameters:
Laboratory: Compuchem and date of analysis: _3/25/10
Parameter
Ceiling
Concentration Limits
(ClassA & ClassB)
(mg/kg)
Monthly Average
Concentration Limits
(For Class A Only)
(mg/kg)
Result
(mg/kg)
Arsenic
75
41
4.4
Cadmium
85
39
0.24
Copper
4,300
1,500
23.2.
Lead
840
300
13.9
Mercury
57
17
< 0.06
Molybdenum
75
n/a
2.5
Nickel
420
420
7.3
Selenium
100
100
1.2
Zinc
7,500
2,800
46.1
b. For Surface Disposal: Fill in the following table with the results of the latest analyses (i.e., on a dry
weight basis) for the following metal parameters:
Laboratory:
and date of analysis:
Closest Distance
to Property Lines
(meters)
Arsenic
(mg/kg)
Chromium
(mg/kg)
Nickel
(mg/kg)
>0but<25
>25but <50
>_50but <75
> 75 but < 100
> 100 but < 125
> 125 but < 150
> 150
FORM: RSCA 070807 Page 4 of 7 Attachment Order 2
DEQ-CFW 00059848

5. Nutrient/Micronutrient Determination: Complete the following:
a. Total solids: 47 %.
b. Fill in the following table with the results of the latest analyses (i.e., on a dry weight basis) for the
following nutrient and micronutrient parameters: laboratory: Compuchem
and date of analysis: 3/25/10
Parameter
Result
(mg/kg, dry weight)
Aluminum
52,375
Ammonia -Nitrogen
< 0.58
Calcium
240
Magnesium
494
Nitrate -Nitrite Nitrogen
< 1.2
pH (Standard Unit)
5.2
Phosphorus
< 5
Potassium
292
Sodium
132.4
Total Kjeldahl Nitrogen
3.9
c. Using the results listed in Item II. 5b. above, calculate the sodium adsorption ration (SAR): 6.9_
d. Specify the mineralization rate to be used in calculating the plant available nitrogen (PAN) of the
residuals: 40 %. This rate is a ® default value or ❑ actually established.
If the residuals are not generated from the treatment of municipal or domestic wastewater, explain or
provide technical justification as to why the selected default value is appropriate to be applied to these
residuals: Recommended by DWQfor dried solids
Calculate the PAN for the residuals (i.e., on a dry weight basis) and list the results in the following table:
Application Method
First Year
Five -Year
PAN
Maximum Adjusted
PAN
(mg1kg)
(mg1kg)
Surface
2.9
No application yrs 2-5
Injection/Incorporation
3.4
No application yrs 2-5
e. Are the residuals a registered fertilizer with the NC Department of Agriculture and Consumer Services:
❑ yes ® no. If yes, provide date of registration approval:
the current registration number:
and the fertilizer equivalent: %, %, and %.
FORM: RSCA 070807 Page 5 of 7 Attachment Order 2
DEQ-CFW 00059849

6. Other Pollutants Determination: Specify whether or not there are any other pollutants of concern in the
residuals and list the results of the latest analyses: Perfluorooctanoic acid (PFOA) <_ 0.017 µgl
7. Pathogen Reduction Determination: Specify which alternative(s) will be used to meet the pathogen
reduction requirements:
a. For Class A or Equivalent:
® A fecal coliform density that is demonstrated to be less than 1,000 MPN per gram of total dry solids.
OR
❑ A salmonella sp. density that is demonstration to be less than 3 MPN per 4 grams of total dry solids.
AND one of the following (except for residuals regulated under 40 CFR Part 257 that are to be distributed):
❑ Alternative 1 [40 CFR §503.32 (a)(3)] - Time/Temperature Compliance.
❑ Alternative 2 [40 CFR §503.32 (a)(4)] - Alkaline Treatment.
❑ Alternative 3 [40 CFR §503.32 (a)(5)] - Prior Testing for Enteric VirusNiable Helminth Ova.
❑ Alternative 4 [40 CFR §503.32 (a)(6)] - No Prior Testing for Enteric VirusNiable Helminth Ova.
❑ Alternative 5 [40 CFR §503.32 (a)(7)] - Process to Further Reduce Pathogens (PFRP).
Specify one: ❑ composting, ❑ heat drying, ❑ heat treatment, ❑ pasteurization,
❑ thermophilic aerobic digestion, ❑ beta ray irradiation, or ❑ gamma ray irradiation.
❑ Alternative 6 [40 CFR §503.32 (a)(8)] - PFRP-Equivalent Process.
Explain:
b. For Class B or Equivalent:
❑ Alternative 1 [40 CFR §503.32 (b)(2)] - Fecal Coliform Density Demonstration.
❑ Alternative 2 [40 CFR §503.32 (b)(3)] - Process to Significantly Reduce Pathogens (PFRP).
Specify one: ❑ aerobic digestion, ❑ air drying, ❑ anaerobic digestion,
❑ composting, or ❑ lime stabilization.
❑ Alternative 3 [40 CFR §503.32 (b)(4)] - PSRP-Equivalent Process.
Explain:
❑ Not Applicable - Regulated under 40 CFR Part 257 with NO Domestic Wastewater Contribution.
c. For Surface Disposal:
❑ Alternative for Surface Disposal Units Only [40 CFR §503.33 (b)(11)] - Soil/Other Material Cover.
❑ Select One of the Class A or Equivalent Pathogen Reduction Alternatives in Item I1. 7a. above.
❑ Select One of the Class B or Equivalent Pathogen Reduction Alternatives in Item I1. 7b. above.
❑ Not Applicable - Regulated under 40 CFR Part 257 with NO Domestic Wastewater Contribution.
FORM: RSCA 070807 Page 6 of 7 Attachment Order 2
DEQ-CFW 00059850

8. Vector Attraction Reduction Determination: Specify which alternatives) will be used to meet the vector
attraction reduction requirements:
❑ Alternative 1 [40 CFR §503.33 (b)(1)] - 38% Volatile Solids Reduction (Aerobic/Anaerobic Digestion).
❑ Alternative 2 [40 CFR §503.33 (b)(2)] - 40-Day Bench Scale Test (Anaerobic Digestion).
❑ Alternative 3 [40 CFR §503.33 (b)(3)] - 30-Day Bench Scale Test (Aerobic Digestion).
❑ Alternative 4 [40 CFR §503.33 (b)(4)] - Specific Oxygen Uptake Rate Test (Aerobic Digestion).
❑ Alternative 5 [40 CFR §503.33 (b)(5)] - 14-Day Aerobic Processes.
❑ Alternative 6 [40 CFR §503.33 (b)(6)] - Alkaline Stabilization.
❑ Alternative 7 (40 CFR §503.33 (b)(7)] - Drying of Stabilized Residuals.
❑ Alternative 8 [40 CFR §503.33 (b)(8)] - Drying of Unstabilized Residuals.
❑ Alternative 9 [40 CFR §503.33 (b)(9)] - Injection.
❑ Alternative 10 [40 CFR §503.33 (b)(10)] - Incorporation.
❑ Alternative for Surface Disposal Units Only [40 CFR §503.33 (b)(11)] - Soil/Other Material Cover.
❑ Alternatives for Animal Processing Residuals Only:
Specify one: ❑ injection, ❑ incorporation, or ❑ lime addition to raise pH to 10.
® Not Applicable - Non -Biological Residuals with NO Domestic Wastewater Contribution.
FORM: RSCA 070807 Page 7 of 7 Attachment Order 2
DEQ-CFW 00059851

Distribution of Residuals Solids Additional Information
RECEIVED / DENR / DVVQ
Aquifer Pm,Prtion Section
JUN 2 0 2011
DEQ-CFW 00059852

FORM DRS 070807
Additional Information
1. How will the materials be handled and transported from where the residuals were produced to where
it will be treated?
The residuals are gravity fed from the blowdown and backwash collection tank to one of two filter
residual solids retention basins located at the water treatment facility (See attached Figures 1 and 2).
Only one basin receives blow down while the other is out of service to allow for the water to
evaporate and infiltrate.
2. How will the residuals be processed/treated?
When the active storage basin has reached its storage capacity it is placed out of service and the water
is allowed to evaporate. The drying of the residuals takes approximately 3 to 4 years. See
Attachment 2b for process description and flow diagram.
3. How will leachate collection be handled?
The basins were constructed with clay bottom and sides and have no leachate collection system.
4. Where will the residuals be stored until processed?
Residuals are stored in the basins until they are removed for disposal.
5. How will the final product be distributed (packaging)?
Final product will not be packed for distribution; it will be applied in a Borrow Area within the
DuPont facility. The dried residuals will be removed from the pond by a track hoe and transported in
dump trucks to the Borrow Area. At present the North Basin where the dry residual solids are stored
is vegetated with small trees and brush. Two options are being considered for digging and removing
the solids. The first option is to scrape the vegetation to the side of the basin, deposit in an
appropriate area and burn it. The second option is to incorporate the vegetation into the solids as it is
placed into trucks and deposit it in the Borrow Area. The solids will be transported by dump truck to
the Borrow Area which is approximately 3,100 feet from the basins. A cover of rye grass will be
established in the application area. The area where the residuals are applied will not be used for fill
material or construction applications in the foreseeable future.
6. Marketability Statement
The residuals will not be marketed. The residuals will be used in the DuPont facility as needed for
landscaping applications.
7. Label or information Sheet
See attached Residuals information Sheet.
DEQ-CFW 00059853

Residuals Information Sheet
RECEIVED / DENR / DWQ
Aquifer Protprtion Sochon
JUN 2 0 2011
DEQ-CFW 00059854

Ok
RESIDUALS INFORMATION SHEET
Name of Facility generating residuals
DuPont Fayetteville Works
Address
22828 NC Hwy 87 W, Fayetteville, NC 28306
Phone
919-678-1314
Contact
Lewis Goodwin
Residuals Description:
Residuals were generated from the treatment of raw surface water for
non -potable uses. The residual solids are non -hazardous and meet
Class A pathogen requirements.
Solids Content
30 — 50 %
Application Requirements:
1. Residuals shall only be applied in designated areas inside the premises of the DuPont
Fayetteville Works facility.
2. Application operations will be performed by authorized personnel only.
3. Application shall not occur during precipitation events.
4. Residuals shall not be applied if the application area is flooded, frozen or snow-covered.
5. Application of residuals shall meet the following setbacks:
a. Surface waters — 25 feet.
b. Wells with the exception of monitoring wells —100 feet
c. Private or public water supply sources —100 feet
6. The application area shall be seeded and mulched to prevent runoff from carrying
residuals into surface waters.
7. Application rates shall not exceed agronomic rate.
DEQ-CFW 00059855

Figure 1
USGS Topographic Map
RECEIVED / DENR / DWQ
Aquifer Prntertion Sertion
JUN 2 0 2011
DEQ-CFW 00059856

JUN 2 0 2011
DEQ-CFW 00059857

Figure 2
Site Layout
RECEIVED / DENR / DWQ
Aquifer PrOlhIrtion SP(-tion
JUN 2 0 2011
DEQ-CFW 00059858

N14800
N14400
N14000
N13600
N13200
N12800
N12400
N12000
N11600
N11200
0
f'
6
n
I�
0
0
0
00
ch
cm
9 8 ) 6 9 4 3 2
""'"' YZE FOR SAFETY, ECOLOCY.AND MINIMUM ESSENTIAL DESIGN 4m
N
Q
Emi
WORKSFAYETTEVILLE
PLANT AREA
MAP-TOPO/PAVING/GRADING
LAYOUT
REFERENCE -DRAWINGS
epee A z�s��s�sr�R.

Attachment 2-a
Vicinity Map
RECEIVED / DENR / DVVQ
Aquifer prom!rtior Section
JUN 2 0 2011
DEQ-CFW 00059860

GA \ SC
Vicinity Map
Dupont Company - Fayetteville Works
Fayetteville, NC
Meters
0 300 600
March 2011 60197525
Attachment 2-a
AECOM Environment
8540 Colonnade Center Drive Ste 306
Raleigh, NC 27615
tel: [phone]
fax:[phone]
web: www.AECOM.com
DEQ-CFW 00059861

Attachment 2-b
Process Flow Narrative and Diagram
RECEIVED / DENR / DWQ
Aquifer Protert 7n Section
JUN 20 2011
DEQ-CFW 00059862

Form RSCA 070807 - Residual Source Certification Attachment
Attachment 2-b - Process Flow Narrative and Diagram
DuPont pumps and treats an average of 2.5 MGD of raw water from the Cape Fear River for
industrial uses within the site. The water treatment system has a design capacity of 3.0 MGD.
The water is pumped from the river, treated by clarification followed by filtration and distributed
to the plant site (see attached Filtered Water Process Flow Diagram). The first step in the
treatment system is the mixing of the raw river water with aluminum sulfate, commonly known
as alum, to improve coagulation and settleability, and with caustic to adjust pH. After mixing,
water flows to the clarifier where sedimentation occurs. The overflow from the clarifier is
further treated in a gravity filter then stored in a holding tank for distribution to the plant.
The residual solids that settled in the bottom of the clarifier are drained into a common collection
tank and then drained into one of two 4.25 acre-feet filter sludge retention basins (North Basin
and South Basin). Backwash from the gravity filters is also discharged into a collection tank.
The collection tank is gravity drained to the sediment basins through a common drain pipe.
When one basin reaches the maximum storage capacity it is taken out of service and the solids
are allowed to dry.
This permit application is seeking approval to dispose of the solids as Class A material in an on -
site Borrow Area. The Borrow Area covers approximately seven (7) acres. An additional 2.2
acres are available for future expansion.
DEQ-CFW 00059863

Ri
Attachment 2-b, Filtered Water Process Flow Diagram
Sediment Basins
Manufacturing
Areas

Attachment 2-c
Quantitative Justification for Residuals Production
RECEIVED / DENR / DWQ
Aquifer Protection Sertion
JUN 2 0 2011
DEQ-CFW 00059865

Form RSCA 070807 - Residual Source Certification Attachment
Attachment 2-c — Residuals Quantitative Justification
There are two sludge retention basins with the same design. The basins are each designed with a
retention capacity of 4.25 acre-feet, i.e. 185,130 cubic feet or 1,384,863 gallons. The retention
depth is designed to be 3 feet. The basins measure 162' x 322' at the base with a 4 on 1 slope to
the berm which is 6 feet above the base, i.e. 24 feet horizontal distance and 6 feet high. The
depth of the residuals in the North Basin averages 3 feet. Based on the volume occupied by the
residuals, the quantity of residual solids in the basin to be disposed is approximately 9,257 dry
tons.
DEQ-CFW 00059866

Attachment 2-d
Sampling Plan
RECEIVED / DENR / D
WQ
Aquifer Protortion SeCti
on
JUN 2 0 2011
DEQ-CFW 00059867

Form RSCA 070807 - Residual Source Certification Attachment
Attachment 2-d — Sampling Plan
Before residual solids are removed from the basin they are sampled for TCLP, metals, nutrients,
bacterial indicators, percent solids, and perfluorooctanoic acid (PFOA). A detailed list of the
analyses is presented in Table 1. The dry residual solids in the North Basin were analyzed in
March 2010. Analytical results indicate the residual solids satisfy the requirements for Class A
material and can be disposed as such. The characteristics of the residuals in the basins have not
changed since they were sampled in March 2010 as the basin has been out of service and no
changes have occurred since the basin was sampled.
Samples were obtained at several locations on the basin to obtain a representative
characterization and determine if there is any variability within the basin. Samples were
obtained from the four corners of the basin, one from each side in the center of the basin and one
in the center of the basin (see Attachment 2-f "Basin Sampling Location Diagram"). Sample
depth ranged from 1 %2 feet on the corners to 2 feet in the middle. A minimum of seven (7)
samples and one duplicate were analyzed. Samples were analyzed in a certified laboratory.
The residual solids are not biological residuals therefore pathogen reduction and vector attraction
reduction requirements are not applicable. To confirm that the residuals do not present
biological hazards and meet Class A parameters they are also analyzed for salmonella and fecal
coliform.
DEQ-CFW 00059868

Arsenic (As)
Barium (Ba)
Benzene
Cadmium (Cd)
Carbon Tetrachloride
Chlordane
Chlorobenzene
Chloroform
Chromium (Cr)
o-Cresol
m-Cresol
p-Cresol
Cresol
2,4-D
Table 1 List of Laboratory Analyses
TCLP
1,4-Dichlorobenzene
1,2-Dichloroethane
1, 1 -Dichloroethylene
2,4-Dinitrotoluene
Endrin
Heptachlor
Hexachlorobenzene
Hexachlorobutadiene
Hexachloroethane
Lead (Pb)
Lindane
Mercury (Hg)
Methoxychlor
Metals
Methyl ethyl ketone
Nitrobenzene
Pentachlorophenol
Pyridine
Selenium (Se)
Silver (Ag)
Tetrachloroethylene
Toxaphene
Trichloroethylene
2,4, 5-Trichlorophenol
2,4,6-Trichlorophenol
2,4,5-TP (Silvex)
Vinyl Chloride
Aluminum
Copper
Potassium
Arsenic
Lead
Silver
Barium
Magnesium
Selenium
Calcium
Mercury
Sodium
Chromium
Molybdenum
Zinc
Cadmium
Nickel
Amonnia
Total Kjeldahl Nitrogen
Corrosivity
Nutrients
Nitrate Phosphorus
Nitrite
RCRA Characteristics
Ignitability Reactivity
Bacterial Indicators
Fecal Coliform or salmonella
Other
Flash Point
IPerfluorooctanoic Acid (PFOA) Percent solids pH
DEQ-CFW 00059869

Attachment 2-e
Laboratory Analytical Reports and Operational Data
RECEIVED / DENR / DWQ
AgUifer Proof r tion Section
JUN 20 2011
DEQ-CFW 00059870

Attachment 2-e
Summary of Analytical Results
Sample ID
NRWSB-01
NRWSB-01
NRWSB-02
NRWSB-03
NRWSB-04
NRWSB-05
NRWSB-06
NRWSB-07
Date
3/25/10
3/25/10
3/25/10
3/25/10
3/25/10
3/25/10
3/25/10
3/25/10
LabName
Method
Group
CAS
Analyte
DUP
FS
FS
FS
FS
FS
FS
FS
No.
TCLP Analytes
Units
COMPUCHEM
8260B
A.VOC
75354
1,1-DICHLOROETHENE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8260B
A.VOC
107062
1,2-DICHLOROETHANE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8260B
A.VOC
71432
BENZENE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8260B
A.VOC
56235
CARBON TETRACHLORIDE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8260B
A.VOC
108907
CHLOROBENZENE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8260E
A.VOC
67663
CHLOROFORM
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8260B
A.VOC
78933
METHYL ETHYL KETONE
MG/L
<0.063
<0.063
<0.063
<0.063
<0.063
<0.063
<0.063
<0.063
COMPUCHEM
8260B
A.VOC
127184
TETRACHLOROETHYLENE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8260B
A.VOC
79016
TRICHLOROETHENE
MG/L
0.0064 J
<0.025
<0.025
<0.025
<0.025
<0.025
0.083
<0.025
COMPUCHEM
8260B
A.VOC
75014
VINYL CHLORIDE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8270C
A.VOC
106467
1,4-DICHLOROBENZENE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8270C
B.SVOC
95954
2,4,5-TRICHLOROPHENOL
MG/L
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
COMPUCHEM
8270C
B.SVOC
88062
2,4,6-TRICHLOROPHENO L
MG/L
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
COMPUCHEM
8270C
B.SVOC
121142
2,4-DINITROTOLUENE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8270C
B.SVOC
95487
2-METHYLPHENOL (O-CRESOL)
MG/L
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
COMPUCHEM
8270C
B.SVOC
108394
3-METHYLPHENOL (M-CRESOL)
MG/L
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
COMPUCHEM
8270C
B.SVOC
106445
4-METHYLPHENOL (P-CRESOL)
MG/L
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
COMPUCHEM
8270C
B.SVOC
118741
HEXACHLOROBENZENE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8270C
B.SVOC
87683
HEXACHLOROBUTADIENE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8270C
B.SVOC
67721
HEXACHLOROETHANE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8270C
B.SVOC
98953
NITROBENZENE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8270C
B.SVOC
87865
PENTACHLOROPHENOL
MG/L
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
COMPUCHEM
8270C
B.SVOC
110861
PYRIDINE
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8151A
D.HERB
94757
2,4-DICHLOROPHENOXYACETIC ACID
MG/L
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
COMPUCHEM
8151A
D.HERB
93721
SILVEX
MG/L
<0.005
<0.005
<0.005
<0.005
"'<0.005
<0.005
<0.005
<0.005
COMPUCHEM
8081
E.PEST
57749
CHLORDANE
MG/L
<0.0086
<0.0086
<0.0086
<0.0086
0.0086
<0.0086
<0.0086
<0.0086
COMPUCHEM
8081
E.PEST
72208
ENDRIN
MG/L
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
<0.001
COMPUCHEM
8081
E.PEST
76448
HEPTACHLOR
MG/L
<0.0005
<0.0005
<0.0005
<0.0005
<0.0005
<0.0005
<0.0005
<0.0005
COMPUCHEM
8081
E.PEST
1024573
HEPTACHLOR EPDXIDE
MG/L
<0.0005
<0.0005
<0.0005
<0.0005
.50.0005
<0.0005
<0.0005
<0.0005
COMPUCHEM
8081
E.PEST
58899
LINDANE
MG/L
<0.0005
<0.0005
<0.0005
<0.0005
<0.0005
<0.0005
<0.0005
<0.0005
COMPUCHEM
8081
E.PEST
72435
METHOXYCHLOR
MG/L
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
<0.005
COMPUCHEM
8081
E.PEST
8001352
TOXAPHENE
MG/L
<0.025
<0.025
<0.025
<0.025
r-10.025
<0.025
<0.025
<0.025
Total Analytes
COMPUCHEM
6010B
G.MET
7440382
ARSENIC
MG/L
0.0176 B
0.0174 B
0.0179 B
0.0178 B
0.0182 B
0.0144 B
0.0158 B
0.0156 J
COMPUCHEM
6010B
G.MET
7440393
BARIUM
MG/L
0.117 J
0.112 J
0.139 J
0.107 J
. 0.141 J
0.106 J
0.0898 J
0.116 J
COMPUCHEM
6010B
G.MET
7440439
CADMIUM
MG/L
<0.5
<0.5
<0.5
<0.5
0,00068 J
<0.5
<0.5
<0.5
COMPUCHEM
6010B
G.MET
7440473
CHROMIUM
MG/L
0.0056 J
0.0041 J
0.0048 J
0.0068 J
0.0081 J
0.0076 J
0.0085 J
0.0066 J
COMPUCHEM
6010B
G.MET
7439921
LEAD
MG/L
0.0088 B
0.0135 J
0.0075 B
0.0095 B
0.02 J
0.0073 B
0.0057 B
0.0042 J
COMPUCHEM
7470A
G.MET
7439976
MERCURY
MG/L
<0.1
<0.1
<0.1
<0.1
<0.1
<0.1
<0.1
<0.1
COMPUCHEM
6010B
G.MET
7782492
SELENIUM
MG/L
0.0169 B
0.0172 B
0.0197 B
0.0186 B
0.0178 B
0.0187 B
0.019 B
0.0182 J
COMPUCHEM
6010B
G.MET
7440224
SILVER
MG/L
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
<0.5
COMPUCHEM
6010E
G.MET
7440702
CALCIUM
MG/KG
191 J
123 J
74.2 J
508 J
213 J
77.7 J
540 J
196 J
COMPUCHEM
6010B
G.MET
7429905
ALUMINUM
MG/KG
18500 J
19500 J
16800 J
1190001
69400 J
16000 J
118000 J
41800 J
COMPUCHEM
601013
G.MET
7439954
MAGNESIUM
MG/KG
198 J
182 J
177 J
1120 J
520 J
153 J
1190 J
413 J
< and ND = Non detect at stated reporting limit
"B" Flag = Analyte detected in laboratory blank
"J" Flag = Analytical result > method detection limit (MDL) but < practical quantification limit (PQL)
Page 1 of 2
Attachment 2e Summary of analytical results. xls:Sheetl
DEQ-CFW 00059871

Attachment 2-e
Summary of Analytical Results
Sample ID
NRWSB-01
NRWSB-01
NRWSB-02
NRWSB-03
NRWSB-04
NRWSB-05
NRWSB-06
NRWSB-07
Date
3/25/10
3/25/10
3/25/10
3/25/10
3/25/10
3/25/10
3/25/10
3/25/10
LabName
Method
Group
CAS
Analyte
DUP
FS
FS
FS
FS
FS
FS
FS
COMPUCHEM
6010B
G.MET
7439987
MOLYBDENUM
MG/KG
0.84 J
1.2 J
0.46 J
4.1 J
14.1 J
0.85 J
5.7 J
2.5 J
COMPUCHEM
6010E
G.MET
7440097
POTASSIUM
MG/KG
196 J
146 J
147 J
620 J
293 J
92.3 J
631 J
210 J
COMPUCHEM
6010E
G.MET
7440235
SODIUM
MG/KG
70.1 B
88.2 B
60.7 B
215 B
198 B
57.3 B
247 B
122 B
COMPUCHEM
6020
G.MET
7440382
ARSENIC
MG/KG
3 J
1.8 J
1.5 J
7.9 J
5.1 J
2.5 J
10.3 J
3 J
COMPUCHEM
6020
G.MET
7440439
CADMIUM
MG/KG
0.18 J
0.17 J
0.15 J
0.41 J
0.28 J
0.1 J
0.48 J
0.19 J
COMPUCHEM
6020
G.MET
7440508
COPPER
MG/KG
8.2 J
10.4 J
5.4 J
49.2 J
28.7 J
6.9 J
58.7 J
18.1 J
COMPUCHEM
6020
G.MET
7439921
LEAD
MG/KG
8.3 J
7.4 J
7.3 J
25.7 J
16.4 J
5.6 J
30 J
10.7 J
COMPUCHEM
6020
G.MET
7440020
NICKEL
MG/KG
3.9 J
3.4 J
3.8 J
14.2 J
7.8 J
2.9 J
15.5 J
6.9 J
COMPUCHEM
6020
G.MET
7782492
SELENIUM
MG/KG
0.36 J
0.51 J
0.36 J
2.4 J
1.7 J
0.37 J
2.8 J
1 J
COMPUCHEM
6020
G.MET
7440666
ZINC
MG/KG
10.6 J
16.4 J
9.6 J
105
55
12.7 J
121
38.4
COMPUCHEM
7471A
G.MET
7439976
MERCURY
MG/KG
0.04 J
<0.06
0.02 J
0.1 J
0.08 J
<0.04
0.1 J
0.04 J
COMPUCHEM
300
H.MISC
14797558
NITRATE
MG/KG
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
<0.2
COMPUCHEM
300
H.MISC
14797650
NITRITE
MG/KG
<1
<1
<1
<1
<1
<1
<1
<1
COMPUCHEM
350.1
H.MISC
7664417
AMMONIA
MG/KG
<0.1
<0.1
1.17
1.16
0.62
<0.1
<0.1
1.3
COMPUCHEM
351.2
H.MISC
CO21
TOTAL KJELDAHL NITROGEN
MG/KG
1.61 J
4.16 J
5.53 J
5.72 J
4.19 J
4.52 J
2.04 J
3.45 J
COMPUCHEM
365.4
H.MISC
7723140
PHOSPHORUS
MG/KG
<5
<5
<5
<5
<5
<5
<5
<5
COMPUCHEM
9014
H.MISC
EVS0029
REACTIVE CYANIDE
MG/L
<250
<250
<250
<250
<250
<250
<250
<250
COMPUCHEM
9034
H.MISC
EVS0030
REACTIVE SULFIDE
MG/L
<250
<250
<250
<250
<250
<250
<250
<250
COMPUCHEM
9040B
H.MISC
C006B
PH-CORROSIVITY
PH UNITS
5.31
5.11
5.24
5.51
5
5.06
5.25
5.09
COMPUCHEM
1010
UNK
EVS0009
FLASHPOINT
DEGREES F
>140
>140
>140
>140
>140
>140
>140
>140
MICROBAC
1682
UNK
EVS0879
SALMONELLA
MPN/4G
0.63
0.63
0.37
0.97
0.5
0.52
1.2
1.5
MICROBAC
9221E
H.MISC
EVS0238
FECAL COLIFORM
MPN/G
96
96
33
440
60
65
330
110
MICROBAC
SM 2540 G
H.MISC
EVS0544
PERCENT SOLIDS
%
45.7
45.7
78.3
29.8
57.9
55
24.6
42.7
STL
LC/MS/MS
OTHER
335671
PFOA
UG/L
<0.014
0.016
0.016
0.014
<0.014
0.016
0.017
< and ND = Non detect at stated reporting limit
"B" Flag = Analyte detected in laboratory blank
"J" Flag = Analytical result > method detection limit (MDL) but < practical quantification limit (PQL)
Page 2 of 2
Attachment 2e Summary of analytical results.xls:Sheetl
DEQ-CFW 00059872

Attachment 2-f
Sampling Locations Figure
RECEIVED I DENR I DWQ
Aquifer Profpdi�n Section
JUN 20 2011
DEQ-CFW 00059873

0
I'
0
n
G
0
0
0
00
v
PZ-21
NRWSB
NRW S6-02 OWT�
SEDIoT
BASIN
NRWSB-04
NRWSB-03
El
A
PZ-01
NRWSB-07
NRWSB-06
DR Soil Samples
f Monitoring Wells
• Piezometer
Pavement/Curb
0 25 50 100 150 200 T 'r
Feet
PARSONS DRAWN: DATE: DUPONT NO
C. Oneal 05/25/2011
Parsons -Commercial Technology Group Samples — North Sedment Basin REVISION: FIGURE NO.. 3 ' PARSONS NO.:
4701 Hedgemore Dr.
Charlotte, NC 28209 DuPont Fayetteville Works 1 445394.01000
Fayetteville, North Carolina FILENAME:
c/GISIFayoMelGislPmject_Tgures/Fay_NorM1_Setl Besinyps.mxC

Attachment 2-g
Site -Wide Well Monitoring Locations
RECEIVED / DENR / DWQ
Aquifer protPrtion Sertion
JUN 2 0 2011
DEQ-CFW 00059875

NW)
CORPORATE REMEDIATION GROUP
An Alliance between
DuPont and URS Corporation - North Carolina
6324 Faiweiw Road
Charlotte, NC 28210
Legend
Monitoring Well - Type II Drainage Channel
Monitoring Well -Type III River
0 Outfall - Pavement/Curb
0 Piezometer Plant Border
Surface Water
Sample Site Structure
Insitu Groundwater
Sample
Map Scale: 1/9,000
Map Projection: NC State Plane Feet, NAD 83
Aerial Photograph provided by DuPont, taken 12/2005
N
W E
S
0 750 1,500
Feet
DEQ-CFW 00059876

Attachment 2-h
Residuals Solids Operations and Maintenance Plan
RECEIVED / DENR / DM
Aquifer prot?rtiar Sertion
JUN 20 2011
DEQ-CFW 00059877

V
Residual Solids Operations and Maintenance Plan
This plan describes the residuals solids management operations at the Fayetteville Works facility
as required by North Carolina regulation NCAC 15A 2T .1110.
1.0 Water Treatment Facility Description
DuPont operates a water treatment facility at the Fayetteville Works site to treat raw water from
the Cape Fear River for industrial uses within the plant. The treatment system consists of a
mixing tank, a clarifier, three gravity filters, a 250,000-gallon water storage tank, a blowdown
and backwash collection tank, and two filter sludge retention basins. The solids that settle in the
bottom of the clarifier are gravity fed to one of two basins. The backwash from the gravity
filters is discharged to a collection tank then discharged by gravity to the basins. Only one basin
actively receives solids until it has reached its capacity. When one basin reaches its capacity a
valve is switched so that solids are discharged into the other basin. The solids accumulated in
the full basin are dried through evaporation. The dried residual solids are disposed as Class A
material in an on -site Borrow Area.
2.0 Residual Solids Program
The Power Area is responsible for the daily operations of the water treatment facility. The plant
is operated on two-12 hour shifts, 24 hours a day, 7 days a week. Two technicians work each
shift in the Power Area. Residual solids are generated from the clarifier and the gravity filters.
Solids are accumulated in the filter sludge retention basins. Clarifier blowdown is remotely
controlled from the Distributed Control System (DCS) by setting interval and duration for the
blowdown cycle. The cycle normally occurs twice per hour depending on the suspended solids
in the raw water and the level of the sludge bed in the clarifier. The three gravity filters are
backwashed about once per day for each unit based on the backpressure across the filter. The
schedule for the clarifier blowdown and the filter backwash can be adjusted depending on the
level of solids in the raw water.
The conveyance pipe from the clarifier and gravity filters to the basins has a valve that can be
adjusted to divert the flow to one of the two basins. Under normal operations one basin is in use
at a time. When that basin reaches its working capacity, the valve is manually switched to direct
flow to the other basin. The solids in the basin are then allowed to dry through evaporation for a
period of 3 to 4 years.
Dry solids are disposed in a Borrow Area located within the facility. The Borrow Area is
occasionally used to obtain fill material for construction projects within the DuPont property or
to deposit excess soil from excavations. A designated portion of the Borrow Area will be used to
apply the dry residual solids. Once applied, this portion of the Borrow Area will have a grass
cover and will not be used for on -site fill material in the foreseeable future. DuPont hires a
contractor to perform the operation of removing the solids from the basin, transporting and
DEQ-CFW 00059878

V
spreading of the solids in the Borrow Area. The equipment used to transport and spread the
residual solids on the Borrow Area is owned by the contractor.
3.0 Maintenance
Routine maintenance for the water treatment system is performed by the Maintenance
Department. All electrical parts, valves, and meters are checked and serviced. The tanks are
inspected internally on a five year basis by a certified vessel inspector. The north and south
basins are visually inspected daily by the operating technicians.
4.0 Safety
The DuPont facility is fenced and access is restricted. The Borrow Area is outside of the fenced
area, but has a gate for access control.
All DuPont employees are trained in safety procedures and to identify and respond to potential
hazards. Before beginning work at the DuPont facility all contractors go through a certification
and registration process. Contractors working at the site are under the direct supervision of a
contract administrator and a safety officer oversees all the projects. DuPont and OSHA safety
requirements are part of the training contractors are required to participate in before working in
the site. This training includes safety procedures, OSHA reporting, and spill procedures.
5.0 Spill Control
Spill detection and control procedures are in effect at the DuPont site. DuPont employees are
trained in spill response. Spill control equipment is available at the site to contain and recover
spilled material. If a spill were to occur within the water treatment system area or from one of
the basins it would flow towards the untreated water ditch. The ditch is routinely monitored and
inspected. Any residual solids sludge spill will be contained with spill containing equipment,
removed from the ditch and returned to the basins.
6.0 Sampling and Monitoring Procedures
Sampling of the residual takes place after the solids are allowed to dry in the pond for the period
of 3 to 4 years. Prior to disposal the solids in the pond will be sampled for the analyses listed in
Table 1. The samples shall be analyzed by a laboratory certified by the Division for the required
parameters. The analytes listed in Table 1 will be reviewed every five years at the time of the
permit renewal to ensure that any changes in regulatory requirements are included in the table.
Analytical results shall be retained for a period of 5 years.
DEQ-CFW 00059879

40
T
Arsenic (As)
Barium (Ba)
Benzene
Cadmium (Cd)
Carbon Tetrachloride
Chlordane
Chlorobenzene
Chloroform
Chromium (Cr)
o-Cresol
m-Cresol
p-Cresol
Cresol
2,4-D
Table 1 List of Laboratory Analyses
TCLP
1,4-Dichlorobenzene
1,2-Dichloroethane
1, 1 -Dichloroethylene
2,4-Dinitrotoluene
Endrin
Heptachlor
Hexachlorobenzene
Hexachlorobutadiene
Hexachloroethane
Lead (Pb)
Lindane
Mercury (Hg)
Methoxychlor
Metals
Methyl ethyl ketone
Nitrobenzene
Pentachlorophenol
Pyridine
Selenium (Se)
Silver (Ag)
Tetrachloroethylene
Toxaphene
Trichloroethylene
2,4, 5-Trichlorophenol
2,4,6-Trichlorophenol
2,4,5-TP (Silvex)
Vinyl Chloride
Aluminum
Copper
Potassium
Arsenic
Lead
Silver
Barium
Magnesium
Selenium
Calcium
Mercury
Sodium
Chromium
Molybdenum
Zinc
Cadmium
Nickel
Amonnia
Total Kjeldahl Nitrogen
Nutrients
Nitrate Phosphorus
Nitrite
RCRA Characteristics
Ignitability Reactivity
Bacterial Indicators
Fecal Coliform or salmonella
Other
Perfluorooctanoic Acid (PFOA) Percent solids
Corrosivity
Flash Point
H
DEQ-CFW 00059880

Attachment 2-i
Plant Available Nitrogen (PAN) Calculation
RECEIVED / DENR / DWQ
JUN 2 0 2011
DEQ-CFW 00059881

DuPont Company - Fayetteville Works
Residual Application Rates
Biosolids treatment:
Application method:
Mineralization factor (km):
Volatilatilization factor (kv):
i
Attachment 24
Plant Available Nitrogen (PAN) Calculation
Drying/Evaporation
Surface application
40 %
50 % (Surface)
Residuals Solids Characteristics:
Percent Solids 47.5 %
Nitrate (NO3) < 0.2 mg/kg
Nitrite (NO2) < 1 mg/kg
Ammonia (NH4) 1.1 mg/kg
TKN 3.9 mg/kg
100 % (Injection)
0.2 Assumed for calculations
1 Assumed for calculations
Plant Available Nitrogen:
Year 1
Biosolids PAN= (TKN-NH3)*km + NH3*kv + NO3+NO2
PAN =. 2.9 mg/kg (Surface application)
0.0057 lb/dry ton
Conversion factor mg/kg to Ib N / ton (* 0.002)
Years 2-4
There will be no application in subsequent 4 years
Crop:
Soil Series:
m Realistic Yield Expectations (RYE):
p Amount of Residuals Generated:
C�
m Application Area:
Rye Grass
CaB
80 Ib/acre/yr
9,257 tons/yr
7 acres
PAN= 3.4 mg/kg (Injection)
0.0068 lb/dry ton
4,628,500 Ib/yr — 00
0
oAgronomic application rate: 13955.5 dry tons/acre
cw
w
N
I �Z5? ftOU57Ac,
Proposed application rate: 1322.4 dry tons/acre
C y oN