NC0078955_Inspection-20000218

JAMES B. HUNTJR
GOVERNOR
WAYNE MCDEVITT
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SECRETARY -'
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NORTH CAROLINA DEPARTMENT OF ���
ENVIRONMENT AND NATURAL RESOURCES `/,.gig-
FAYETTEVILLE REGIONAL OFFICE
DIVISION OF WATER QUALITY
February 18, 2000
The Honorable Abraham Oudeh
Mayor, City of Dunn
PO Box 1065.
Dunn, NC 28335
SUBJECT: Compliance Evaluation Inspection
City of Dunn WTP
NPDES Permit No. NC0078955
Harnett County
Dear Mr. Oudeh:
Enclosed is a copy of the Compliance Evaluation Inspection conducted on
February 11, 2000.
As part of the inspection a tour of the Wastewater Treatment Plant was
conducted: All observations and recommendations are in Part D. Summary of
Findings/Comments of this inspection report.. Please remember it is priority to
discharge a good quality effluent which will not pose any problems to the receiving
stream.
Please review the attached report. If you or your staff have any questions do
not hesitate to contact me at [phone].
Sincerely,
i/2 GL-
Hughie M. White II
Environmental Technician
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Enclosures
22.5 GREEN STREET, SUITE 714, FAYETTEVILLE, NORTH CAROLINA 28301-5043
PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY /AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/1 O% POST -CONSUMER PAPER

NPDES COMPLIANCE INSPECTION REPORT
North Carolina Division of Water Quality
Fayetteville Regional Office
Section A. National Data System Coding
Transaction Code: N NPDES NO. NC0078955
Inspector: S
Date:000211 Inspection Type: C
Facility Type: 1 Reserved.
Facility Evaluation Rating: 4 BI: N QA: N
Section B: Facility Data
•
Name and Location of Facility Inspected:
City of Dunn WTP
Reserved.
Entry Time: 10:00 • am Permit Effective Date: 960601
Exit Time/Date: 11:30 am Permit Expiration Date: 010531
Name(s), Title(s) of On -Site Representative(s):
Ronnie Dickens (Cert. Grade II)- Backup "ORC"
Phone Number(s): [phone]
Name, Title and Address of Responsible Official:
Mr. Abraham Oudeh, Mayor
PO Box 1065
Dunn, NC 28335
Section C: Areas Evaluated During Inspection
Contacted: no
(S = Satisfactory, M = Marginal, U = Unsatisfactory, N = Not Evaluated, N/A = Not Applicable)
Permit: S
Records/Reports:. S
Facility. Site Review: S
Flow'_ Measurement: S
Laboratory: S
Pretreatment: N/A
;Effluent/Receiving Waters:: S
Compliance Schedule: N/A
Self -Monitoring Program: S
Operation & Maintenance: S
Sludge Disposal: S
Other:

Section 1): Summary of Findings/Comments:
1. The NPDES permit was available upon request.
2. A compliance evaluation for the period January, 1999 through December, 1999 revealed no NPDES
permit violations for this period.
3. The following parameters are analyzed on site at the Dunn WTP: pH and Chlorine Residual. The Total
Suspended Solids are analyzed at the Dunn WWTP laboratory. The parameters Iron and Aluminum are
analyzed by the independent laboratory Chemical and Environmental Technologies, Inc.
4. The calibration records for the 4 and 7 pH buffers were reviewed and were correctly recorded.
5. Laboratory data was reviewed for the period March, 1999 through June, 1999. All data seemed to be
correctly recorded and reported on the DMR.
6. The flow rate is determined by the pumping rate (GPM) multiplied by the time (in minutes) divided by
1440/mins/day=gals/day. The calculated flow rate is logged everyday.
7. Backwash water from the filtration system and solids from the sedimentation basins of the water plant
flow into a 1.5 MGD lagoon. At the time of inspection, the lagoon was loaded about 3/4 of the
maximum capacity of wastewater. From the lagoon, it is pumped to a clar vac system where the solids
settle and the clear water is discharged to the receiving stream. The solids are then transferred into one
of five drying beds. Previously, the sludge was being hauled to the Dunn WWTP and mixed with
sludge there for land application. A recommendation was made, and now the WTP has a land application
permit to dispose of their own sludge. At the time of inspection, all five drying beds were full. A
recommendation was made to clean weeds that are growing along the drying beds and to repair several
cracks that were in the drying bed walls. One crack did appear to have some seepage.
8. It has also been recommended that a new pipeline be installed from the sedimentation tanks to the
head of the lagoon. Currently, solids from the sedimentation tanks are deposited into the lagoon at
the same location where the lagoon wastewater is pumped to the clar-vac. This is not an efficient method
because of the lack of settling time in the lagoon. If a new line were installed at the head of the lagoon,
that would give more adequate time for solids to settle and lessen the amount of sludge being pumped
into the clar-vac system.

Name and Signature of Inspectors)
Agency/Office/Telephone Date
Belinda S. Henson yi.��.tJ(cLi,n 4.,:, DENR/Fayetteville/910-486-1541 0
Hughie M. Whit I
Name and Signature of Reviewer Agency/Office/Telephone Date
Paul E. ,R.avOb
Action Taken
DENR/Fayetteville/910-486-1541
Regulatory Office Use Only
Compliance Status
_Noncompliance
_Compliance
Date 2/ 66