NC0087912_Permit Issuance_20040629

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Michael F. Easley, Governor
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State of North Carolina
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William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
OAlan
W. Klimek, P.E., Director
Division of Water Quality
June 29, 2004
Mr. Stephen T. Williams
WilcoHess, LLC
5446 University Parkway
Winston-Salem, North Carolina 27501
Subject: Issuance of NPDES Permit NCO087912
Wilco Station #197
Franklin County
Dear Mr. Williams:
In accordance with WilcoHess, LLC's February 5, 2004 application for issuance of an NPDES
discharge permit for the Wilco Station # 197, the Division is forwarding herewith Permit No.
NC0087912. 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 U.S. Environmental
Protection Agency dated May 9,1994, as revised; and becomes effective on August 1, 2004.
The Division published a notice of the proposed permit in the Raleigh News & Observer on May 14,
2004. We received no comments and are issuing the permit as drafted.
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, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless
such a demand is made, this permit shall be final and binding.
Please note that this permit is not transferable except after proper notice to the Division of Water
Quality. The Division may require modification or revocation and reissuance of the permit.
This permit does not affect the legal requirements to obtain other permits which may be required by
the Division of Water Quality, the Division of Land Resources, the Coastal Area Management Act, or
any other federal or local governmental permit.
If you have any questions concerning the final permit or the requirements for your facility, please
contact Mike Templeton at [phone], extension 541, or at mike. [e-mail].
Sincerely,
ORIGINAL SIGNED BY
SUSAN A. WILSON
Alan W. Klimek, P.E.
Director
Enclosure: Final Permit NCO087912
cc (w/ encl.): Mr. Darin M. McClure - Mid -Atlantic Associates, Inc., 409 Rogers View Court, Raleigh, NC 27610
Raleigh Regional Office, Water Quality
Technical Assistance and Certification Unit
NPDES Unit Files
Central Files
North Carolina Division of Water Quality [phone]
1617 Mail Service Center FAX [phone]
Raleigh, North Carolina 27699-1617 On the Internet at http://h2o.enr.state.nc.us/

Permit No. NCO087912
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions 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,
WilcoHess, LLC
is hereby authorized to discharge wastewater from a facility located at the
Wilco Station #197
13960 Capital Boulevard
Wake Forest North Carolina
Franklin County
to receiving waters designated as UT to Richland Creek in the Neuse River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III, and IV of this permit.
This permit shall become effective.............................................................................................. August 1, 2004
This permit and the authorization to discharge shall expire at midnight on ........................March 31, 2008
Signed this day ............June 29, 2004.
ORIGINAL SIGNED BY
SUSAN A. WILSON
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management
Commission

Permit No. NCO087912
SUPPLEMENT TO PERMIT COVER SHEET
The authority to operate and discharge from this facility arises exclusively under the terms and conditions
of this NPDES Permit. Therefore, upon the effective date of this permit, any and all previous NPDES
Permits issued for this facility and bearing this permit number are revoked.
WilcoHess, LLC
is hereby authorized to:
1. After completing construction pursuant to Authorization to Construct request 087912A01, operate a
new oil /water separator system, and
2. Discharge from said treatment works at the location specified on the attached map into an UT to
Richland Creek, which is classified as a C-NSW water in the Neuse River Basin.

Permit No. NC0087912 •
A.M) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until permit expiration, the
Permittee is authorized to discharge treated wastewater from Outfall 001 subject to the following
effluent limitations and monitoring requirements:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample
Location
Flow
Monthly
Estimate
Effluent
Total Suspended Solids
30.0 mg/L
Quarterly
Grab
Effluent
Oil and Grease 1
Quarterly
Grab
Effluent
Naphthalene Z
105 ug/L
Quarterly
Grab
Effluent
Total Nitrogen
(NO2-N + NO3-N + TKN) 3
Monitor & Report (mg/L)
Annually
Grab
Effluent
Total Phosphorus
Monitor & Report (mg/L)
Annually
Grab
Effluent
Footnotes:
1. The grab sample for Oil and Grease should be skimmed from the surface in a quiescent zone, if possible.
2. If Naphthalene is not detected above the method detection limit during the first eight sampling events, its monitoring
requirement shall be waived for the remainder of the permit term. If it is detected above the method detection limit
during any of the first eight sampling events, the monitoring requirement shall remain in effect for the remainder of the
permit term.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A.(2.) SITE MANAGEMENT PRACTICES AND SPILL RESPONSE
No later than 90 days after the effective date of this permit, the Permittee shall submit:
a. site management practices it proposes to use to minimize the amount and strength of wastewater
generated at the diesel island and discharged from the treatment facility; and
b. spill response procedures for limiting the release of fuels from the site.
These requirements are intended to ensure good housekeeping practices at the fueling islands and
surrounding areas and are not expected to serve as a Spill Prevention, Control, and Countermeasure
Plan or similar document.
Upon approval, each of these documents shall become an enforceable part of this permit.
A.M) OPERATIONS AND MAINTENANCE (O&M)
Any start-up and O&M procedures approved pursuant to ATC request 087912A01 shall become, upon
approval, an enforceable part of this permit.

Fact Sheet - NPDES Permit
Wilco -Hess, LLC
NPDES No. NC0087912
FACILITY INFORMATION
RECEIVING STREAM
-Facility Name:
Wilco Station # 197
Receiving Stream:
UT to Richland Creek
Permitted Flow (MGD):
N/A
Subbasin:
Neuse
Facility Grade:
I Phys/Chem
Index No.:
Facility Status:
New
Stream Class:
C-NSW
Permit Status:
New
303(d) Listed:
County:
Franklin
Use Support:
Regional Office:
Raleigh
Drainage Area (mi2):
ND
USGS Topo Quad:
C24SE
Summer 7010 (cfs)
0
(Grissom, NC)
winter 7010 (cfs):
ND
3002 (cfs):
ND
Average Flow (cfs):
ND
IwC (%):
100%
FINAL PERMIT ACTION
The Division is issuing a new NPDES Permit NC0087912 to Wilco -Hess, LLC for its Wilco Station
# 197, located at 13960 Capital Boulevard, Wake Forest, North Carolina. The facility is a convenience
store with gasoline and diesel fuel pump islands, and the permit authorizes the discharge of treated
wastewaters from the diesel fueling island to a nearby surface drainage.
The Division received application for the permit on February 5, 2004, and published its notice of
intent to issue the permit in the Raleigh News & Observer on May 14, 2004. No comments were
received, and the permit is being issued as drafted.
FACILITY OVERVIEW
The Wilco Station # 197 is a convenience store with vehicle fueling facilities. Gasoline and diesel are
dispensed at separate "islands," and neighbors have complained of finding diesel in the road front
drainage. DWQ inspectors have verified that there is at least occasional spillage from the diesel
fueling island as well as discharges from rinsing of the concrete pad and incidental amounts of
windshield washer fluid. It has been conservatively estimated that an average of 50 gallons per day
of spillage and/or rinse water contacts the concrete pad.
Wilco -Hess, LLC proposes to install perimeter drains around the diesel island to capture any spills
or rinse waters, treat the resulting wastewater in two sequential oil -water separators, and discharge
the treated wastewater to an existing storm drain. An existing canopy covers the island and will
minimize the potential for stormwater to enter the treatment system.
The company included a request for an Authorization to Construct permit with its NPDES
application. The Division has reviewed the ATC request but, as required by its rules, has not take
action on the request, pending issuance of this NPDES permit.

NPDES Permit Fact Sheet
Page 2 of 2
Compliance History
Wilco -Hess, LLC
Wilco Station # 197
NCO087912
Since at least November 2003, the Division has received complaints from nearby residents
regarding diesel fuel spills from the facility. WilcoHess has tried to institute corrective measures but
has found that discharges caused by the spillage and cleanup from truck fueling are a chronic
condition. Staff from DWQ's Raleigh Regional Office issued a Notice of Violation in February 2003
regarding an unreported spill. DWQ staff have met with WilcoHess representatives at the site in
January 2004 and agreed to a course of action that includes collection, treatment, and discharge of
the wastewaters; implementation of management practices to minimize the amount of waste
discharged; and cleanup of soils contaminated by past spills.
SUMMARY OF PERMIT REQUIREMENTS
The permit will expire March 31, 2008, less than the usual five-year term, in order to keep the
permit synchronized with other permits in this portion of the Neuse River basin.
Effluent Limitations and Monitoring Requirements
The effluent limitations and monitoring requirements are based on NPDES general permit
requirements for groundwater remediation projects involving diesel fuel only (NCG510000). These
include limits for Total Suspended Solids (TSS) and Naphthalene. The TSS limit is technology -
based, and the naphthalene limit is equal to the water quality standard applied at the end of pipe.
Monitoring requirements are consistent with those in the general permit except that, consistent with
the nutrient permitting strategy for the Neuse River basin, nitrogen and phosphorus monitoring are
required, in this case, annually.
Special Conditions
The permit requires the company to submit a set of best management practices - "good
housekeeping" practices, for the most part - that will be implemented at the site. The permittee has
apparently prepared a list of practices and submitted it to the Raleigh Regional Office, but the
permit file does not yet include that document.
The permit also requires the permittee to follow the operation and maintenance procedures for the
proposed O/W separators, assuming those procedures are approved with the ATC request.
- end of document -

AFFIDAVIT OF PUBLICA
NORTH CAROLINA.
Wake County. ) Ss.
Written comments regarding
the proposed permit will -be
Before the undersigned, a Not f-Chatham
County North Carolina, duly commissioned and authorized.to
administer oaths, affirmations, etc., personallyappeared Ivy
Marsch, who, being duly sworn or affirmed, according to law,
doth depose and say that she is Billing Manager -Legal
Advertising of The News and Observer a corporation
organized and doing business under the Laws of the State of
North Carolina, and publishing a newspaper known as The
News and Observer, in the City of Raleigh , Wake
County and State aforesaid, the said newspaper in which such
notice, paper, document, or legal advertisement was published
was, at the .time of each and every such publication, a
newspaper meeting all of the requirements and qualifications
of Section 1-597 of the General Statutes of North Carolina and
was a qualified newspaper within the meaning of Section 1-
597 of the General Statutes of North Carolina, and that as such
she makes this affidavit; that she is familiar with the books,
files and business of said corporation and by reference to the
files of said publication the attached advertisement for
DEHNR was inserted in the aforesaid
newspaper on dates as follows: 05/14/04
Account Number: 73350832
tly copied from the books and files of the aforesaid Corporation and publication.
�OC�iP% Billing ManagerTegal Advertising
Sworn or affirmed to, and subscribed before me, this
17 day of MAY , 2004 AD
In Testimony Whereof, I have hereunto set my hand
and affixed my official seal, the day and year aforesaid.
-Notary Public
NM May 14 2004 1 My commission expires 14th day of March, 2009.

NPDES REGIONAL WATER QUALITY
STAFF REPORT AND RECOMMENDATIONS
(This form is best filled out on computer, rather than hard copy)
Date: 04/19/2004
To: NPDES Discharge Permitting Unit
Atm. NPDES Reviewer: Mike Templeton
County: Franklin
Permitee: Wilco Hess
Application/ Permit No.: NCO087912
Staff Report Prepared By: Judy Garrett
Project Name: Wilo Hess LLC Station #197
SOC Priority Project? (Y/N) N If Yes, SOC No. Please treat this as a priority proiect. It is
an existing facility which is impacting the environment adversely.
A. GENERAL INFORMATION
1. This application is (check all that apply): ® New ❑ Renewal
❑ Modification
2. Was a site visit conducted in order to prepare this report? ® Yes or ❑ No.
a. Date of site visit: 01/12/204
b. Person contacted and telephone number: Darryl Smith [phone]
c. Site visit conducted by: Judy Garrett
d. Inspection Report Attached: ® Yes or ❑ No.
3. Keeping BIMS Accurate: Is the following BIMS information (a. through e. below) correct?
❑ Yes or ❑ No. If No, please either indicate that it is correct on the current application or the
existing permit or provide the details. If none can be supplied, please explain:
Discharge Point: (Fill this section only if BIMS or Application Info is incorrect or missing)
(If there is more than one discharge pipe, put the others on the last page of this form.)
a. Location OK on Application ®,
OK on Existing Permit ❑, or provide Location: see attached map.
b. Driving Directions OK on Application ❑,
OK on Existing Permit ❑, or provide Driving Directions (please be accurate): US I North past
Wake Forest, just as you cross Franklin County line, Wilco Hess is on the right at Wall Road.
c. USGS Quadrangle Map name and number OK on Application ❑,
OK on Existing Permit ❑, or provide USGS Quadrangle Map name and number: C 24 SE.
Grissom, NC
d. Latitude/Longitude OK on Application ❑, (check at htto://topozone.com These are often
inaccurate) OK on Existing Permit ❑, or provide Latitude: 36'00"48 Longitude: 78'31"00
c. Receiving Stream OK on Application ®,
OK on Existing Permit ❑, or provide Receiving Stream or affected waters: ut to Richland Creek
a. Stream Classification: C-NSW
b. River Basin and Sub basin No.: Neuse 03-04-02
c. Describe receiving stream features and downstream uses: dry roadside ditch which runs in
front of several houses.

NPDES REGIONAL WATER QUALITY
STAFF REPORT AND RECOMMENDATIONS
For NEW FACILITIES Proceed to Section C, Evaluation and Recommendations
(For renewals or modifications continue to section B)
B. DESCRIPTION OF FACILITIES AND WASTES) (renewals and modifications only)
1. Describe the existing treatment facility:
2. Are there appropriately certified ORCs for the facilities? ❑ Yes or ❑ No.
Operator in Charge: Certificate #
Back- Operator in Charge: Certificate #
(Available in BIMS or Certification Website)
3. Does the facility have operational or compliance problems? Please comment:
Summarize your BIMS review of monitoring data (Notice(s) of violation within the last permit cycle;
Current enforcement action(s)):
Are they currently under SOC, ❑ Currently under JOC, ❑ Currently under moratorium ❑? Have
all compliance dates/conditions in the existing permit, SOC, JOC, etc. been complied with? ❑ Yes
or ❑ No. If no, please explain:
4. Residuals Treatment: PSRP ❑ (Process to Significantly Reduce Pathogens, Class B) or
PFRP ❑ (Process to Further Reduce Pathogens, Class A)?
Are they liquid or dewatered to a cake?
Land Applied? Yes ❑ No ❑ If so, list Non -Discharge Permit No.
Contractor Used:
Landfilled? Yes ❑ No❑ If yes, where?
Other?
Adequate Digester Capacity? Yes ❑ No ❑ Sludge Storage Capacity? Yes ❑ No ❑
Please comment on current operational practices:
5. Are there any issues related to compliance/enforcement that should be resolved before issuing this
permit? ❑ Yes or ❑ No. If yes, please explain:
C. E VAL UA TION AND RECOMMENDATIONS
1. Alternative Analysis Evaluation: has the facility evaluated the non -discharge options available? Give
regional perspective for each option evaluated:
Spray Irrigation: not available
Connect to Regional Sewer System: not available
Subsurface: industrial wastewater is not allowed to be discharge to subsurface
Other Disposal Options:
FORM: NPDES-RRO 06/03, 9/03 2

NPDES REGIONAL WATER QUALITY
STAFF REPORT AND RECOMMENDATIONS
2. Provide any additional narrative regarding your review of the application: Downstream neighbors are
unhappy about incidental spills and other larger spills which have flowed down the ditch. The facility
has a large flow truck diesel fueling area where spills occur.The facility proposes to install catch
grating to convey any pad wash down water and spilled fuel to the O/W separator. Since this
wastewater is generated from fueling activity and from pad washing, it was decided that a stomwater
permit is not appropriate. It was determined that this wastewater is process wastewater.
3. List any items that you would like NPDES Unit to obtain through an additional information
request. Make sure that you provide a reason for each item:
Recommended Additional Information I Reason
4. List specific Permit requirements that you recommend to be removed from the permit when
issued. Make sure that you provide a reason for each condition:
Recommended Removal I Reason I
5. List specific special requirements or compliance schedules that you recommend to be included in
the permit when issued. Make sure that you provide a reason for each special condition:
Recommended Addition
Reason
diesel components
this wastewater is exclusively from a diesel
island.
no flow limit
the separators are to be designed on the
flows expected from washdown activities,
but a flow limit and monitoring are not
appropriate.
FORM: NPDES-RRO 06/03, 9/03 3

NPDES REGIONAL WATER QUALITY
STAFF REPORT AND RECOMMENDATIONS
6. Recommendation: ❑ Hold, pending receipt and review of additional information by regional office;
❑ Hold, pending review and approval of required additional information by NPDES permitting
office; ® Issue; ❑ Deny. If deny, please state reasons:
Reminder: attach inspection report i Yes was checke7'1`
d.
7. Signature of report preparers
Signature of WQS regional supervisor. -
Date:
D. ADDITIONAL REGIONAL STAFF REVIEW ITEMS
Please place a priority on this project due to the environmental impacts this existing facility is having
on the environment.
If next page is not rued, PLEASE set printer for pages 1 through 3 to avoid wasting paper.
Use this page for facilities with more than one Discharge Pipe
Discharge Point: (Fill this section only if BIMS or Application Info is incorrect or missing)
a. Location OK on Application ❑,
OK on Existing Permit ❑, or provide Location:
b. Driving Directions OK on Application ❑,
OK on Existing Permit ❑, or provide Driving Directions (please be accurate):
c. USGS Quadrangle Map name and number OK on Application ❑,
OK on Existing Permit ❑, or provide USGS Quadrangle Map name and number:
d. Latitude/Longitude O K on Application ❑, ( check at http://topozone.com These are often
inaccurate) OK on Existing Permit ❑, or provide Latitude: Longitude:
e. Receiving Stream OK on Application ❑,
OK on Existing PermitEl, or provide Receiving Stream or affected waters:
a. Stream Classification:
b. River Basin and Sub basin No.:
c. Describe receiving stream features and downstream uses:
Discharge Point: (Fill this section only if BIMS or Application Info is incorrect or missing)
a. Location OK on Application ❑,
OK on Existing PermitEl or provide Location:
b. Driving Directions OK on Application ❑,
OK on Existing Permit ❑, or provide Driving Directions (please be accurate):
FORM: NPDES-RRO 06/03, 9/03 4

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
January 14, 2004
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. Steve Williams, President
WilcoHess LLC
5446 University Parkway
Winston-Salem, North Carolina 27105
Subject: Notice of Violation
Alan W. Klimek, P.E. Director
Colleen H. Sullins, Deputy Director
Division of Water Quality
NCGS 143-215.75 et sea., Oil Pollution and Hazardous Substance Control Act
Requirement to obtain an NPDES Permit under 143-215.1
WilcoHess at 13960 Capital Boulevard, Wake Forest, NC, Store #197
Franklin County
Dear Mr. Williams:
On January 12, 2004, Judy Garrett and Joe Albiston with the Water Quality Section staff and Jimmie Greer with the
Groundwater Section staff of the Raleigh Regional Office met with Darrell Smith , Construction Maintenance
Supervisor with WilcoHess LLC, and 5 homeowners whose properties the water leaving the truck stop/filling station
crosses.
On November 21, 2003, Ms. Garrett received a complaint concerning diesel fuel in the ditch in front of the
houses on Wall Road. Ms. Garrett observed an oil sheen on the water in the ditch and diesel odor in the ditch on
Wall Road just downstream of the WilcoHess facility during an investigation on November 22, 2003.
You previously received a Notice of Violation dated February 7, 2003 from the Groundwater Section of
this office concerning a diesel fuel spill that had occurred two weeks prior to that date and had not been reported or
cleaned up. The recent investigation revealed that although the company has tried to institute corrective measures,
the discharge of various quantities of petroleum products from the truck filling area is a chronic condition caused by
spills from filling activities and washing down of the area by stormwater and staff of the facility.
Discharge of petroleum products to the lands or waters of the State is a violation of NCGS 143-215.75
which states that no discharge of petroleum products is allowed to water or lands of the state without a permit, and
NCGS 143-215.1 which states that a permit is required for a discharge of pollutants to waters of the state; and is
subject of civil penalties of up to $5,000 per day per violation and up to $25,000 per day per violation, respectively.
Therefore, this office is requiring that WilcoHess obtain an NPDES Permit for the discharge of this water and that
the Company install treatment to remove the petroleum to an acceptable level prior to discharge of the wastewater.
Attached is an application for the NPDES Permit. You will be required to submit plans and specifications for
treatment facilities signed and sealed by a NC certified Professional Engineer and receive an Authorization to
Construct permit prior to installing treatment facilities.
Mr. Smith stated that the facility will cease the washing of the fueling area until appropriate treatment of
the water is installed. Any further discharge of petroleum products without a permit is considered to be in violation
of the above cited laws and subject to civil penalties.
Mr. Smith was told that the Company is required to remove the contaminated materials from the ditch on
Wall Road in accordance with NCGS 143-215.84 which requires that the petroleum be removed as soon as possible.
He indicated that work would begin the next day, January 13, 2004. After cleanup, soil Testing must be completed
as directed in item B. of the February 7, 2003 letter (copy attached).
Raleigh Regional Office 1628 Mail Service Center
Water Quality Section Raleigh, NC 27699-1628
. =AI 4r:&
,iCDENR
teo
Carolura!!r�
phone [phone] Customer Service
facsimile [phone] 1-877-623-6748

Mr. Williams
• • January 14, 2004
Page 2
Please respond to this Notice by January 30, 2004, indicating what actions have been taken to bring this
facility into compliance with the above -cited laws.
If you have questions, please contact Ms. Garrett or myself at [phone].
Sincerely,
Kenneth Schuster, P. E.
Water Quality Regional Supervisor
Cc: Ben Crabtree, 1433 Wall Road, Wake Forest, NC 27587
Franklin County Health Department
Jimmie Greer, RRO Groundwater
Central Files

MID -ATLANTIC
ASSOCIATES, INC.
Engineering & Environmental Sohrtions
409 Rogers Viev Court / Raleigh / Nurih Carolina 127010
800-486-7568 / 919-250-9918 / 919-250-99.50 h1aes mile
v vwwmaaaeline., on,
February 3, 2004
North Carolina Department of Environment and Natural Resources
Division of Water Quality/NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Reference: NPDES PERMIT APPLICATION
WILCO STATION #197
13960 CAPITAL BOULEVARD
WAKE FOREST, NORTH CAROLINA
Dear Sir or Madam:
Attached please find three copies of the NPDES Permit Application — Short Form C —
Manufacturing for the above referenced site. If you have any questions, need additional
information, please feel free to contact us at 250-9918.
Sincerely,
MID -ATLANTIC AS5,OCIATES, INC.
Darin M. McCTure, P.E.
Principal Engineer
Attachment: NPDES Permit Application — Short Form C — Manufacturing
to()? 9 03:1

ENGINEERING PROPOSAL
WILCO STATION #197
13960 CAPITAL BOULEVARD
WAKE FOREST, NORTH CAROLINA
FEBRUARY 3, 2004
This engineering proposal sets forth the information requested in 15A NCAC 2H
0.0105(c). The requirements of 15A NCAC 2H 0.0105(c) are written in italics with
company responses below.
15A NCAC 2H .0105 (c)(1) — a description of the origin, type and flow of waste which is
proposed to be discharged. Justification and a demonstration of need shall be provided
for expected flow volumes.
The Wilco Station #197 consists of a convenience store with both gasoline and diesel
fuel pump islands. There has been some concern that operations at the diesel fuel
island may be contributing contaminants to runoff at the site. Truck windshield washing
and pavement rinsing activities at the diesel fuel island appear to be mixing with trace
diesel fuel spills in the area and discharging off site as surface water. Runoff from this
area currently discharges into a storm drain at the southeast corner of the site and is
conveyed through underground piping to a roadside drainage ditch at the northeast
corner of the property. During a recent meeting on site between several Division of
Water Quality (DWQ) personnel (Judy Garrett, Joe Albiston and Jimmie Greer) and Mr.
Darryl Smith of WILCOHESS, it was agreed that the origin of flow to be addressed
would be the discharge off of the concrete pad underneath the diesel fuel canopy. The
agreed upon remedy (treatment works) is discussed below under the response to
section 15A NCAC 2H .0105 (c)(3).
It has been conservatively estimated (based on Mr. Smith's site -specific knowledge of
this and other similar WILCOHESS facilities) that on average, 50-gallons of water per
day contacts the concrete pad under the diesel fuel canopy.
15A NCAC 2H .0105 (c)(2) — a summary of waste treatment and disposal options that
were considered and why the proposed system and point of discharge were selected, -
the summary should have sufficient detail to assure that the most environmentally
sound alternative was selected from the reasonably cost effective options.
After discussions with the aforementioned DWQ personnel, it was also agreed that the
proposed treatment outlined in the next section was reasonable, as it had been
successfully implemented at other WILCOHESS stations.

Engineering Proposal
Wilco Station #197
Wake Forest, North Carolina
February 3, 2004
Page 2
15A NCAC 2H .0105 (c)(3) — a narrative description of the proposed treatment works
including type and arrangement of major components, in sufficient detail to assure that
the proposed facility has the capacity to comply with the permit limits; for commonly
used treatment system or components with well established treatment capabilities,
detailed plans and specifications need not be submitted until the application for the
authorization to construct, however, detailed plans and specifications shall be required
with the permit application for any system or component without well established
treatment capabilities for the nature and waste or degree of treatment needed to meet
the permit limits.
The proposed treatment works at the facility will consist of ABT, Inc., 512AF Ductile Iron
Frame and Grate installed around the .east, west and south sides of the diesel fuel
canopy. The trench drain will be installed inside the drip -line of the canopy and be
sloped during installation so that rainfall and/or surface water does not enter the drain.
Flow captured by this grate will be discharged through six-inch diameter PVC piping to a
1,500-gallon capacity, pre -cast concrete oil -water -sand separator. Discharge from this
unit will be discharged to a 2,000-gallon capacity, Kleerwater oil -water separator.
Discharge from this unit will be discharged through six-inch diameter PVC piping which
will ultimately tie into the existing storm sewer line at the southeast corner of the site.
Information sheets on system components are included as Attachment A and a map
showing approximate locations of the proposed components is included as Attachment
B.
15A NCAC 2H .0105 (c)(4) — a general location map, showing orientation of the facility
with reference to at least two geographic references (numbered roads, named
streams/rivers, etc.).
See Attachment B.
15A NCAC 2H .0105 (c)(5) — a scale location plan of the site showing location of the
proposed treatment works and the proposed point of discharge.
See Attachment B.
15A NCAC 2H .0105 (c)(6) — special studies or modeling may be required in cases
where the impacts of the discharge cannot be readily determined by the Division.
Not applicable.

15A NCA C 2H . 0105 (c) (7) — a statement to demonstrate financial qualification and
substantial previous compliance with federal and state laws, regulations, and rules for
the protection of the environment as required by G.S. 143-215.1(b)(4)(b).
See Attachment C