NC0074241_Permit Modification_20040413

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
0
April 13, 2004
Mr. James A. Dillon
Associated Asphalt Greensboro, Inc.
PO Box 12626
Roanoke, VA 24027
Subject: NPDES Permit Modification — Name/Ownership Change
Permit NC0074241
Associated Asphalt Greensboro, Inc.
Formerly (APAC Carolina, Inc.)
Guilford County
Dear Mr. Dillon:
In accordance with your request received March 18, 2004, the Division is forwarding the subject permit
modification. This modification documents the change in name/ownership at the subject facility. All other terms and
conditions in the original permit remain unchanged and in full effect. This permit modification is issued under 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 December 6, 1983.
If any parts, measurement frequencies or sampling requirements contained in this permit modification 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 a written petition conforming to Chapter 150E of the North Carolina General
Statutes, 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.
This permit does not affect the legal requirement to obtain other permits which may be required by the Division
of Water Quality, the Division of Land Resources, Coastal Area Management Act, or any other Federal or Local
government permit that may be required. If you have any questions concerning this permit, please contact Valery
Stephens at the telephone number or address listed below.
Sincerely,
7->
Fin Ian W. Klimek, P.E.
c: Central Files
Winston-Salem Regional Office, Water Quality Section
NPDES Unit
N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 [phone]
DNA
`iTIENR
Customer Service
1 800 623.7748

NCO074241
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 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,
Associated Asphalt Greensboro, Inc.
is hereby authorized to discharge wastewater from a facility located at
Associated Asphalt Greensboro, Inc.
100 South Chimney Rock Road
Greensboro
Guilford County
to receiving waters designated as an unnamed tributary to East Fork Deep River in the Cape Fear River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV
hereof.
This permit shall become effective April 13, 2004.
This permit and authorization to discharge shall expire at midnight on August 31, 2006.
Signed this day April 13, 2004.
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

NCO074241
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked, and as of this issuance, any
previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and is charge from
this facility arises under the permit conditions, requirements, terms, and provisions included herein.
Associated Asphalt Greensboro, Inc., is hereby authorized to:
1. Continue to discharge stormwater from the dike storage and truck loading areas from the
Greensboro Terminal located at 100 South Chimney Rock Road, Guilford County, through outfall
001 at a specified location (see attached map) into an unnamed tributary to the East Fork Deep
River, a waterbody classified as wS-IV waters within the Cape Fear River Basin.
The facility is located at the Greensboro Terminal, 100 South Chimney Rock Road, Greensboro, in
Guilford County.
2. Discharge from said treatment works at the location specified on the attached map into an
unnamed tributary to East Fork Deep River, classified WS IV waters in the Cape Fear River Basin.

Permit NC0074241
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge stormwater from Outfall 001. Such discharges shall be limited and monitored by the
Permittee as specified below:
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Effluent
Total Suspended Solids
45.0 m
Monthly
Grab
Effluent
Oil and Grease
_RT-W
Monthly
Grab
Effluent
Monthly
Grab
Effluent
Eth lbenzene
Monthly
Grab
Effluent
Phenol
Quarterly
Grab
Effluent
Benzene
Quarterly
Grab
Effluent
Toluene
Quarterly
Grab
Effluent
Ammonia
Quarterly
Grab
Effluent
X lene
Quarterly
Grab
Effluent
EPA Method 625 4
Semi-annually
Grab
Effluent
Acute Toxicit s
Annually
Grab
Effluent
Footnotes:
1. Flow — During periods of no flow, the Permittee shall submit a monthly Discharge Monitoring Report
(DMR) indicating "No discharge." Flow shall be monitored with each discharge event and may be
monitored in one of four ways:
a) measure flow continuously;
b) calculate flow based on total rainfall per area draining to the outfall; exclude built -upon
area (best method for facilities with large runoff -collection ponds);
c) estimate flow at 20-minute intervals during the entire discharge event; or
d) report flow based on discharge pump logs.
2. Oil and Grease — Where possible, the grab sample for oil and grease should be skimmed from
the surface of a quiescent (calm water) zone.
3. MTBE — Please see Part A.(3) for other requirements relating to MTBE.
4. EPA method 625 - Once the facility has collected data for 8 consecutive sample events in which there
have been no detections above the method detection limit, the Permittee may request a modification to
the permit that reduces or eliminates the monitoring requirement.
5. Acute Toxicity (Fathead Minnow, 24-hour), Annual [see Special Condition A.(2)].
There shall be no discharge of floating solids or foam visible in other than trace amounts.
There shall be no direct discharge of tank solids, tank bottom water, or the rag layer.
There shall be no direct discharge of tank (or pipe) contents following hydrostatic testing unless benzene
concentration is less than 71.4 µg/l and toluene concentration is less than 11 µg/l.

Permit NCO074241
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A. (2) ACUTE TOXICITY MONITORING (ANNUAL)
The Permittee shall conduct annual toxicity tests using protocols defined as definitive in EPA Document
EPA/600/4-90/027 entitled "Methods for Measuring the Acute Toxicity of Effluents to Freshwater and
Marine Organisms." The monitoring shall be performed as a Fathead Minnow (Pimephales promelas)
24-hour static test. Effluent samples for self -monitoring purposes must be obtained below all waste
treatment. The permittee will conduct one test annually, with the annual period beginning in January of
the calendar year of the effective date of the permit. The annual test requirement must be performed and
reported by June 30. If no discharge occurs by June 30, notification will be made to the Division by this
date. Toxicity testing will be performed on the next discharge event for the annual test requirement.
The parameter code for this test is TAE6C. All toxicity testing results required as part of this permit
condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it was
performed, using the appropriate parameter code. Additionally, DWQ Form AT-1 (original) is to be sent
to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later
than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical measurements
performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine
of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of
the waste stream.
Should any test data from either these monitoring requirements or tests performed by the North Carolina
Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival and appropriate environmental controls, shall constitute an invalid test and will
require immediate follow-up testing to be completed no later than the last day of the month following the
month of the initial monitoring.

Permit NCO074241
A. (3) MTBE SPECIAL CONDITION
For the protection of public health, oil terminals that discharge to waters classified as water supplies
("WS" waters) will adhere to the following action plan:
1. As stated in Part A. (1), monthly monitoring of MTBE for the duration of the permit is required.
2. After one year of monthly monitoring or once twelve data points have been collected, the
Permittee shall review the MTBE data collected. If MTBE has not been detected in any samples
taken during the first year, the facility may request that the monitoring frequency for MTBE be
reduced. This should be done by requesting the NPDES Unit to perform a minor modification to
the NPDES permit. In the case in which MTBE has been detected within the first year of
effluent sampling, the subject facility must submit an MTBE reduction plan. This action plan
may include site -specific BMPs or engineering solutions. A copy of this plan should be
submitted to:
North Carolina Division of Water Quality
Water Quality Section
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
3. By the time of the next permit renewal, it is anticipated that surface water criterion for MTBE
will be established. This criterion will be used in conjunction with the facility's effluent MTBE
data to perform a reasonable potential analysis (RPA). The RPA will determine whether effluent
from a facility has the potential to exceed a water quality standard or criterion, thereby requiring
a water quality limit in the NPDES permit.