DEQp00022638

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
Division of Water Quality
Suite 714, Wachovia Bldg. Fayetteville, North Carolina 28301
July 21, 1997
MICHAEL JOHNSON
DUPONT-FAYETTEVILLE
P.O. DRAWER Z
FAYETTEVILLE NC 28302
SUBJECT: Notice of Violation - Effluent Limitations
NPDES No. NC0003573
DUPONT-FAYETTEVILLE
BLADEN County
Dear MICHAEL JOHNSON:
Review of subject self-monitoring report for the month
of April, 1997 revealed violation(s) of the following
parameter(s):
Reported Limits
Pipe Parameter Value/Unit Value/Type/Unit
001 00530 RES/TSS 1715.7 LBS/DA 1030.0 FIN LBS/DA
Remedial actions, if not already implemented, should be
taken to correct the problem(s). The Division of Water
Quality may pursue enforcement actions for this and.any
additional violations of State Law. If you have questions or if
you need assistance, please call Michael C. Wicker, Regional Water
Quality Supervisor, at 910/486-1541.
Sincerely,
-V.
Kerr T. Stevens
Regional Supervisor
CC: Central Files
GKBDEX96/BL
L6 E0 p

DuPont Fluoroproducts
P. 0. Drawer Z
Fayetteville, NC 28302-1770
ome
DuPont Fluoroproducts
April 16, 1997
NC Dept. of Environment, Health, and Natural Resources
Division of Environmental Management
Central Files
P. O. Box 29535 b
aob�Raleigh, NC 27626-0535
RE: NPDES Permit No. NC0003573
TSS Exceedance - April 7, 1997
Dear Sirs:
The April 7, 1997, Outfall 001 sample was measured as 1,715 lb/day Total Suspended Solids
(TSS) versus the Daily Maximum permit limit of 1,030 lb/day.
The likely cause of the TSS exceedance is that gas bubbles either under or throughout the sludge
blanket in both clarifiers caused the sludge to float, resulting in the discharge of the biomass to
Outfall 001. The site's ORC was successful in minimizing the amount of sludge discharged, and
returning the system to normal.
The Outfall 001 samples for April 8 and 9, 1997, indicate that the TSS level has returned to the
normal amount of less than 150 lb/day. Therefore, we do not anticipate that the Monthly
Average limit of 317.8 lb/day will be exceeded for the month of April 1997.
If you have any questions regarding this matter, please feel free to call me at [phone].
Michael E. Johnson
Environmental Coordinator
cc: Ms. Kitty Kramer, Fayetteville Regional Office
E. I. du Pont de Nemours and Company Printed on Recycled Paper
FLA

State of North Carolina
Department of Environment,
Health and Natural Resources
Fayetteville Regional Office
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
Mr. Michael Mayberry
E.I. Dupont
PO Drawer 7
Fayetteville, NC 28302
Dear Mr. Mayberry:
MW
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E)EHNR
DIVISION OF WATER QUALITY
January 17, 1997
SUBJECT: Compliance Evaluation Inspection
E.I. Dupont de Nemours WWTP
NPDES Permit No. NC0003573
Bladen County
Please find enclosed a copy of the Compliance Evaluation Inspection Report for the
inspection conducted on January 16,1997, by Mr. D.T. Jones of this office.
The report should be self-explanatory and contains observations and recommendations.
If you have any questions or require additional clarification, please do not hesitate to contact
me at [phone].
Sincerely
4d
D.T. Joo
Chemist
DTJ/bs
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c` .Tj Roger Pfaff ,
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Wachovia Building, Suite 714, Fayetteville 4 -r* -
North 910-486-0707
North caroling 6-15415043 NDC An Equal Opportunity Affirmative Action Employer
Voice 910-486-1541 5M recycled/ 10% post -consumer paper

NPDES COMPLIANCE INSPECTION REPORT
Division of Water Quality
Fayetteville Regional Office
Section A. National Data System Coding
Transaction Code: N NPDES NO. NC0003573 Date:970116 Inspection Type: C
Inspector: S Facility Type: 2
Facility Evaluation Rating: BI: N QA: N
Section B: Facility Data
Name and Location of Facility Inspected:
E.I. Dupont de Nemours WWTP
Entry Time: 1:00 p.m.
Exit Time/Date: 970116
Name(s), Title(s) of On -Site Representative(s):
Robert Geddie (Cert. Lic. Gr. IV) - "ORC"
Kenneth Hall (Cert. Lic. Gr. III) - "Back-up Operator"
Mike Johnson - Environmental Coordinator (No License)
John Johnson (Cert. Lic. Gr. Il) - "Operator"
Phone Number(s): 910-678-1219
Name, Title and Address of Responsible Official:
Michael Mayberry - Plant Manager
Phone Number: 910-678-1223
Section C: Areas Evaluated During Inspection
Reserved:
Reserved:
Permit Effective Date: 960901
Permit Expiration Date: 010531
Contacted: No
(S = Satisfactory, M = Marginal, U = Unsatisfactory, N = Not Evaluated)

Section D: Summary of Findings/Comments:
1. According. to the DMR data reviewed for the period December 1995 through October 1996,
the plant's effluent was in compliance with the NPDES permit's limits.
2. Aqua -Tech Laboratory performs the "outside" permit required analytical work for the
facility.
3. All logs, calibrations, and records were being adequately maintained.
4. Fischer and Porter last checked/calibrated the effluent flow meter in October 1996.
5. On the day of inspection, a grab sample of the effluent revealed a settleable solids level of
a trace/ltr of settleable solids with a relatively clear supernatant in the test vessel (Imhoff
Cone).
6. DMR and laboratory data agree for discharge pipe .001 for June 1996 (spot check).
7. Sludge is (was) routed from the bottom of the clarifier to the "DAF" unit and from there to
the sludge holding tank. The screw press then dewaters the sludge to about 12-14%. Dryers
then dewater the sludge to about 45-50%. It is then put in bins and delivered to "BFI" site
in Roseboro where it is disposed.
Name and Signature of Inspector Agency/Office/Telephone
D.T. Jones j �[phone]
ayetteville
/j
Name and Signature of Reviewer
Paul Rawls
Agency/Office/Telephone
DEHNR/Fayetteville
[phone]
Regulatory Office Use Only
Action Taken Date
Noncompliance
-Compliance
Date
1/16/97
Date
1-1-1 7
Compliance Status
r