DEQ-CFW_00061055

NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
FAYETTEVILLE REGIONAL OFFICE
DIVISION OF WATER QUALITY
June 22, 1998
Mr. Michael Mayberry
E.I. Dupont
PO Drawer 7
Fayetteville, NC 28302
SUBJECT: Compliance Evaluation Inspection
E.I. Dupont de Nemours WWTP
NPDES Permit No. NC0003573
Bladen County
Dear Mr. Mayberry:
Please find enclosed a copy of the Compliance Evaluation Inspection Report
for the inspection conducted on June 19, 1998.
The report should be self-explanatory and contains comments pertaining to the
inspection. Based on information and observations made during the inspection the
facility appears to be well maintained and operated.
If you have any questions or require clarification, please do not hesitate to contact me
at [phone].
Sincerely,
/#1 �Aistv�
Jeffery Brown
Environmental Engineer
Paul E. Rawls
Environmental Specialist
Enclosure
cc: Region IV, EPA
225 GREEN STREET, SUITE 714, FAYETTEVILLE, NORTH CAROLINA 28301-5043
PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/10% POST -CONSUMER PAPER
DEQ-CFW 00061055

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NPDES COMPLIANCE INSPECTION REPORT
Division of Water Quality
Fayetteville Regional Office
Section A National Data System Coding
Transaction Code: N NPDES NO. NC0003573
Inspector: S Facility Type: 2
Facility Evaluation Rating: 4 BI: N
Section B• Facili Data
Name and Location of Facility Inspected:
E.I. Dupont de Nemours WWTP
Entry Time: 1:00 p.m.
Exit Time/Date: 980619
Name(s), Title(s) of On -Site Representative(s):
Kenneth Hall "Back-up Operator"
Mike Johnson, Facility Environmental Coordinator
Phone Number: 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
Date:980619 Inspection Type: C
Reserved:
QA: N Reserved:
Permit Effective Date: 960901
Permit Expiration Date: 010531
Contacted: No
. , — _ TT____� r AT — AT-+ Vxyabinfa-A N/A= Nnt Annlicablel
1zi = aatisraciory, 1V1 — 1VIMrll1Ql, V —
Permit: S
—.7 , - • - -- — - - -
Records/Reports: S
Facility Site Review: S
Flow Measurement: N
Laboratory: S
Effluent/Receiving Waters: S
Pretreatment: N/A
Com liance Schedule: N/A
Self-Monitorin Pro ram:S
Operation & Maintenance: S
Sludge Disposal: S
I Other:
Section D• Summary of Findings/Comments:.
DEQ-CFW 00061056

1. Mr. Hall produced a copy of the current NPDES permit when asked. It is suggested that all
staff associated with the day to day operation of the wastewater treatment facility read the
permit periodically.
2. Aqua -Tech and Burlington Laboratory performs the "outside" permit required analytical work
for the facility.
3. A log of daily operations was reviewed. The log is maintained in a manner that allows staff
to develop trends and determine necessary operational modifications to insure compliance.
The facility is maintained at a MISS of about 2600 mg/1, a F to M of 0.13. MCRT is about
31 days and average D.O. (aeration basin) is reported to be 6.4.
Phosphoric Acid and Ammonia (NH3) is introduced in the aeration basin to maintain proper
biological activity. Polymer is introduced in the clarifiers to aid in settling. Defoamer is used
when necessary.
Trends and all modifications to the operational scheme should be recorded in order to
develop a basin line of data to assist when the inevitable upset occurs. The staff should be
commended in keeping this data in such a user friendly manner.
4. A limited spare parts inventory is maintained at the facility. It is strongly suggested that this
inventory is reviewed at least annually to determine such items as local availability, order/
delivery time, age of currently utilized components and overall history of service for each key
component of the wastewater treatment facility.
5. On the day of inspection, the effluent appeared to clear and free of excessive solid.
6. DMR and laboratory data agree for discharge pipe .001 for September 1997 (spot check).
It was noted that monitoring for OCPSF parameters revealed no concentrations above
detectable levels for the data reviewed.
7. Sludge (residuals) is processed utilizing a "DAF" unit, sludge holding tank, sludge press and
dryers. It is delivered to `BFI" landfill site located near Roseboro, Sampson County for
disposal.
8. Based on information obtained during the inspection all wastewater staff have been trained
in Confined Space entry techniques.
Name and Sign ure of Inspector(s)
Paul E. Rawl�
Jeffery Brown
Name and Signature of Reviewer
Paul Rawl Qtl�z��
Agency/Office/Telephone
DENR/Fayetteville
[phone]
Agen cy/O Mce/Teleph one
DENR/Fayetteville
[phone]
Regulatory Office Use Only
Action Taken Date
Noncompliance _Compliance
Date
6/19/98
Date
Compliance Status
DEQ-CFW 00061057