NC0065307_Permit Modification_20090203

ALA
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. Jeff W. Turpin
Worsley Companies, Inc.
10 South Cardinal Drive
Wilmington, North Carolina 28403
Dear Mr. Turpin:
Division of Water Quality
Coleen H. Sullins Dee Freeman
Director Secretary
February 3, 2009
Subject: Minor Permit Modification — Extension of
Deadline to Install Dechlorination
NPDES Permit NCO065307
Dixie Boy #6 WWTP
New Hanover County
The Division of Water Quality (the Division) acknowledges your written request received January 26, 2009 to
extend your deadline of February 1, 2009 for compliance to permit limits for Total Residual Chlorine (TRC). We
hereby grant your request.
We have attached change -pages to modify your permit. Please insert these pages in your existing permit and
discard the old pages. The permit limit for TRC will now become effective June 1, 2009. On January 28, 2009,
we understand that the Division's Construction Grants and Loans received your Application for an Authorization
to Construct (AT'C) dechlorination facilities. We also understand that they intend to "fast track" this application
within 10 to 15 working days.
Please observe a revised footnote regarding TRC in permit section A. (L) explaining that, "Due to inconsistencies
in quantifying TRC in a wastewater matrix, the Division will consider any level reported below 50 ug/L to be
compliant with this permit. However, the Permittee will continue to report all levels detected by North Carolina -
certified laboratory methods, even if these levels fall below 50 ug/L." If you have questions, please contact
Joe.Cornoronna.ncmail.net or call 919-807-6394.
Sincerely��
41-
Coleen H. Sullins
Attachments: change -pages for NPDES Permit NCO065307
cc: Central Files
Wilmington Regional Office/Surface Water Protection Section
NPDES Files
Qp W A rF9
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 C)� OG
Location:512 N. Salisbury St. Raleigh, North Carolina 27604 y r ORe
Phone: [phone] FAX: 9IM07-64921 Customer Service: 1$77-623-6746 > q NorthCarolina
Internet: www.nowaterqual4.org O -r Natutally
An Equat Opportunity 1 Affirmative Action Employer

Permit NCO065307
A. (1.) . EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT
LIMITS °'_ ..
MONIMRING REQUIREMENTS
CHARACTERISTICS
(Parameter Codes)
Monthly
Daily
Measurement
Sample Type :
' .Sample Location
Average
:Maximum
Frequency
Flow
0.004 MGD
Continuous
Recording
Influent or Effluent
50050
BOD, 5 day (20°C)
30.0 mg/L
45.0 mg/L
Weekly
Grab
Effluent
00310
Total Suspended Solids
30.0 mg/L
45.0 mg/L
Weekly
Grab
Effluent
00530
NH3 as N
2/Month
Grab
Effluent
00610
Dissolved Oxygenl
Weekly
Grab
Effluent
00300
Enterococci2 (geometric mean)
35 / 100 mL
276 / 100 mL
Weekly
Grab
Effluent
61211
Total Residual Chlorine3
13 µg/L
2/Week
Grab
Effluent
50060
Oil and Grease
30.0 mg/L
60.0 mg/L
Monthly
Grab
Influent and Effluent
00556
Temperature
Weekly
Grab
Effluent
00010
pH4
Weekly
Grab
Effluent
00400
Footnotes:
1. The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/L.
2. The limit for Enterococci will become effective February 1, 2008.
3. The limit for total residual chlorine will become effective June 1, 2009, only if chlorine is used. Due to
inconsistencies in quantifying -fRC in a wastewater matrix, the Division will consider any level reported below
50 ug/L to be compliant with this permit. However, the Permittee will continue to report all levels detected by
North Carolina -certified laboratory methods; even if these levels fall below 50 ug/L.
4. The pH shall not be less than 6.8 standard units nor greater than 8.5 standard units.
There shall be no discharge of floating solids or foam visible in other than trace amounts.

a
Worsley Operating Corporation
10 S. Cardinal Drive, Wilmington, N.C. 28403 • P.O. Box 3227, Wilmington, N.C. 28406
Main:(910)-395-5300 • Fax: [phone]
www.worsley.com
January 23, 2009
Mr. Gil Vinzani��
NPDES Permitting Unit
aMail Service Center
Raleigh, North Carolina 27699-1617
RE: NPDES Permit NCO065307 C/ �(L ��
Wilmington Auto Truck Stop
Highway 421 North Wilmington, North Carolina WE -
_ VA4
Worsley Operating Corporation
Dear
Mr. Vinzani:
Worsley Operating Corporation (WOC) respectfully requests an extension to the February 1", 2009
deadline for dechlorination of our effluent wastewater at the referenced facility.
The wastewater operator for this facility was reportedly working on this issue during 2008. During late
December 2008, our operator unexpectedly quit.
WOC retained a new operator on December 30, 2008. It has been brought to our attention by the new
operator that the necessary application for the installation of the dechlorination system has not been
submitted to DENR. At this time, the application has been completed and presently being reviewed by a
professional licensed engineer. WOC anticipates the application to be submitted to DENR the week of
January 26t6.
If you have any questions or need additional information, please do not hesitate to contact me at the
letterhead address or by telephone at [phone].
RECEIVED
JAN 2 6 2009
DENR - WATER QUALITY
POINT SOURCE BRANCH