NC0065307_Permit Issuance_19960531

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Mr. Don Quinn
Worsley Companies, Inc.
P.O. Box 3227
Wilmington, North Carolina 28406
Dear Mr. Quinn:
May 31,1996
Subject: NPDES Permit Issuance
Permit No. NCO065307
Wilmington Auto Truck Stop W WTP
New Hanover County
In accordance with the application for a discharge permit received on December 20, 1995, the Division is
forwarding herewith the subject NPDES permit. This permit is issued pursuant to the requirements of North
Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the US
Environmental Protection Agency dated December 6,1983.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable
to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following
receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the
North Carolina General Statutes, and filed with the Office of Administrative Hearings, Post Office Drawer
27447, Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision shall be final and
binding.
Please take notice this permit is not transferable. Part II, E.4. addresses the requirements to be followed
in case of change in ownership or control of this discharge.
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Environmental Management or permits required by the Division of Land Resources, Coastal Area
Management Act or any other Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Susan Wilson at telephone number (919)
733-5083, extension 553.
Sincerely,
Original Signed By
David A. Goodrich
A. Preston Howard, Jr., P.E.
cc Central Files
Wilmington Regional Office
Mr. Roosevelt Childress, EPA
Permits and Engineering Unit
Facility Assessment Unit
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Permit No. NCO065307
STATE OF NORTH CAROLI NA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
Worsley Companies, Incorporated
is hereby authorized to discharge wastewater from a facility located at
Wilmington Auto Truck Stop
Wastewater Treatment Plant
US Highway 421/117
west of Wilmington
New Hanover County
to receiving waters designated as Northeast Cape Fear River in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, and III hereof.
The permit shall become effective July 1, 1996.
This permit and the authorization to discharge shall expire at midnight on June 30, 2001.
Signed this day May 31, 1996.
Original Signed By
David A Goodrich
A. Preston Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Mangement Commission

Permit No. NCOO65307
SUPPLEMENT TO PERMIT COVER SHEET
Worsley Companies, Incorporated
is hereby authorized to:
1. Continue to operate an existing 0.004 MGD package treatment plant consisting of a grease trap,
influent pump station, aeration basin, clarifier, aerated sludge holding, chlorine disinfection,
flow recorder, and effluent pump station discharging through a common outfall with a
stormwater disposal facility having an oil/water separator, pump ,and force main located at
Wilmington Auto Truck Stop, US Highway 421/117, west of Wilmington, New Hanover
County (See Part III of this Permit), and
2. Discharge from said treatment works at the location specified on the attached map into Northeast
Cape Fear River which is classified Class SC -Swamp waters in the Cape Fear River Basin.

A. (). EFFLUENT LB41TATIONS AND MONITORING REQUIREMENTS FINAL
Permit No. NCO065307
During the period beginning on the effective date of the permit and lasting until expiration, the Pemuttee is authorized to discharge from
outfall(s) serial number 001- DOMESTIC WASTE AND STORMWATER. Such discharges shall be limited and monitored by the permittee as
specified below:
Effluent Characteristics Discharge limitations
Monitoring
Requirements
Measurement
Sample *Sample
Monthly Avg. Weekly Avg. Daily Max
Freauencl
Tyne Location
Flow t 0.004 MGD
Continuous
Recorder
I or E
BOD, 5 day, 200C 30.0 m g/ I 4 5. 0 m g/ I
Weekly
Grab
E
Total Suspended Residue 30.0 m g / I 45.0 m g / I
Weekly
Grab
E
NH3 as N
2/Month
Grab
E
Dissolved Oxygen"
Weekly
Grab
E
Temperature
Weekly
Grab
E
Oil and Grease 30.0 mg/l 60.0 mg/l
Monthly
Grab
E,I
Fecal Coliform (geometric mean) 200 /100 ml 400 /100 ml
Weekly
Grab
E
* Sample locations: E - Effluent, I - Influent
t Flow limit of 0.004 MGD is applicable to the domestic waste only. Stormwater flow or the combined flow shall be recorded or estimated
and reported separately.
** The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/1.
The pH shall not be less than 6.8 standard units nor greater than 8.5 standard units and shall be monitored weekly at the effluent by grab
sample.
*** See Part III, Condition E regarding maintenance of the oil/water separator.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

• Part III Permit No. NC0065307
E. Oil/water Separator Condition
The oil/water separator shall be properly maintained and operated at all times. Maintenance records
shall be retained on -site regarding any dates of free product removal or any operation/maintenance
repair dates.

a
I
# 28
Staff Review and Evaluation
NPDES Wastewater Permit
FACILITY INFORMATION
Facility Wilmington Auto Truck Stop/Worsley Co., Inc.
NPDES No. NC0065307
Design Flow (MGD) 0.004
Facility Class II
STREAM CHARACTERISTICS
Stream Name
Northeast Cape Fear River
Stream Class
SC - Sw
Sub -basin
030617
Drainage Area (mil)
1499
S7Q10 (cfs)
26.3 (tidal)
W7Q10 (cfs)
30Q2 (cfs)
IWC (%)
NA
Proposed Changes
Parameters Affected
Basis for change(s)
Monitoring Frequencies
Reflect Class II Facility
2B .0500 Regulations
Monitoring reduction
oil & grease
Reduced monitoring to monthly
due to compliance history
Compliance Schedule:
Special Condition(s):
Permits & Engineering Comments:
The permit will be renewed with existing limits. Compliance data indicate frequent TSS
violations (this may be due to combined stormwater and ww). Frequencies have been changed to
reflect a Class II facility. Oil and grease monitoring has been reduced based on the facility's
consistent compliance. The permit also specifies that the flow limit be based on the domestic
flow only (this is based on treatment capacity of domestic plant). The current limit of 0.004
MGD for combined domestic and stormwater was inappropriate. I am unsure from DMR's if the
facility is actually sampling the combined wastewater.
Prepared by: Susan A. Wilson
Regional Office Evaluation and Recommendations: n
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• WORSLEY CO., INC.
WILMINGTON AUTO TRUCK STOP
4/2/96
NOTES TO FILE
This facility has a 0.004 MGD domestic plant for ww from the truck stop and restaurant. It
also has an oil/water separator for the gas/deisel pumping area.
Per WiRO, the sampling and measurement for the domestic plant is performed prior to
combining with the ww from the oil/water separator. Per Steve W. (WiRO) there is not an
adequate sampling point for the oil/water separator.
No individual sampling is recommended for the oil/water separator. However, a special
cond. re. proper operation and maintenance of the separator has been included.
The region also recommended influent sampling 1/month for oil and grease.
saw /o(;

SOC PRIORITY PROJECT: No
To: Permits and Engineering Unit
Water Quality Section
Attention: Susan Wilson (Review Engineer)
Date: 3/8/96
NPDES STAFF REPORT AND RECOMMENDATION
County: New Hanover
Permit No. NC0065307
PART I - GENERAL INFORMATION
1. Facility and Address:
Worsley Companies -Dixie Boy #6
Post Office Box 3227, 10 Cardinal Drive
Wilmington, NC 28403
2. Date of Investigation: 3/7/96
3. Report Prepared by: Steve West
4. Persons Contacted and Telephone Number:
Don Quinn, Environmental Manager [phone]
S. Directions to Site: The facility is located on the west side
of the Northeast Cape Fear River near Wilmington at the
intersection of US Hwy 421 and NC Hwy 117/133.
6. Discharge Point:
Latitude: 340 15' 10" Longitude: 770 57' 06"
USGS Quad No: J 27 SW USGS Name: Castle Hayne, NC
7. Site size and expansion area consistent with application?
Little expansion area available.
8. Topography: Site slopes gently toward the Cape Fear River,
approx. 10 feet msl.
9. Location of nearest dwelling: Greater than 500 feet.
10. Receiving stream or affected surface waters: Northeast Cape
Fear River
a. Classification: Class "SC Sw" waters
b. River Basin and Subbasin No.: 03-06-17
C. Describe receiving stream features and pertinent
downstream uses: Tidal section of river used for
commercial shipping and fishing, and recreational
boating and fishing.

` PART
II
- DESCRIPTION OF DISCHARGE
AND TREATMENT WORKS
1.
a.
Volume of wastewater to be
permitted: 0.004 MGD
b. What is the current permitted flow limit? 0.004 MGD
C. Actual treatment capacity of the current facility:
0.004 MGD
d. Date and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years: None
e. Please provide a description of existing wastewater
treatment facilities: The existing facility consists of
an influent pump station, extended aeration package
plant, aerated sludge holding tank, tablet -type chlorine
contact tank, ultrasonic flow meter, effluent pump
station. Stormwater from the gas pump area is routed
through an oil/water separator and ties into to the WWTP
effluent line.
f. Please provide a description of proposed wastewater
treatment facilities: No modifications proposed.
g. Possible toxic impacts to surface waters: Chlorine
h. Pretreatment Program: Not a municipality.
2. Residuals handling and utilization/disposal scheme:
S & B Maintenance Permit No. WQ0000783
3. Treatment plant classification: Class II
4. SIC Code: 5541
Wastewater Code Primary: 10 Secondary: 37
Main Treatment Unit Code: 060X3
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved? No
2. Special monitoring or limitations requests: None
3. Important SOC Schedule dates:
Effective Date: N/A
Submission of Plans and Specs: N/A
Begin Construction: N/A
Complete Construction: N/A

4. Alternative Analysis Evaluation: High water table limits
spray irrigation and underground disposal; no regional system
currently available.
5. Other Special Items: There is no standby power supply
available. It is recommended a permit condition be included
to require the Permittee to satisfy plant reliability criteria
under 2H .0124 (2).
PART IV -
AND RECODIDUNDATIONS
The plant has had difficulty meeting existing limits for TSS
and fecal coliform. An enforcement report was recently
prepared for these violations over the past year. The
influent pumps are oversized for the plant, causing surges and
solids wash -out. During the inspection the clarifier effluent
was clear, but there was evidence of solids accumulation in
the chlorine contact tank. Hopefully the most pending
enforcement will help the Permittee decide to modify the lift
station.
It is recommended that a draft permit be prepared and placed
at public notice. If no significant adverse public comment is
received, it is recommended NPDES Permit No. NC0065307 be
reissued to Worsley Companies in accordance with the Cape Fear
River basin -wide permitting strategy.
Signature of report preparer
r
I t
uality Regional Supervisor
Technical Support Branch
Central Files
Wilmington Regional Office Files
3— $-°:('
Date
8 /4'/W/�
Date