NC0074241_Wasteload Allocation_19910807

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wASTEr
PERMIT NO.: N10074241
pERNIITTEE NAME: GNC Energy Corporation
Facility Status: Existing
Permit Status: Modification
Major Minor `1
Pipe No.: —" 6 ooL
Design Capacity:
Domestic (% of Flow):
Industrial (% of Flow): 100 %
Comments:
no copy of the previous permit. Combining outfalls. delete 001
- Fwfio&". /oweessw //Z:s iz-.6��,, •c
RECEIVING STREAM: _an unnamed tributary to East Fork Deep River
Class: WS-III
Sub -Basin:
Reference USGS Quad: C 19 SW (please attach)
County: Guilford
Regional Office: Winston-Salem Regional Office
Previous Exp. Date: 10/31/93 Treatment Plant Class: ho—'f
Classification changes within three miles:
W4 at
PLOTTED p�,s
Requested by: Rosanne Barona Date: 3 /9 1
Prepared by: Date:
Reviewed by: t sca 31 Date: 4
�Otik 7. p
WQ
CI
no A44
AD ALLOCATION
Modeler Date Rec. # RS 24
Drainage Area (mil ) D . 03 Avg. StreamO flow (cfs):
7Q10 (cfs) O Winter 7Q10 (cfs) O 30Q2 (cfs) a
Toxicity Limits: IWC % cut Chronic
�p,A.�
Instream Monitoring:
Parameters
Upstream Location
1
(Dish
CONVENTIONAL PARAMETERS
Recommended L-rzits:
Monthly Daily Monitoring
Average Maximum Frequency
Wasteflow (MGD): monitor (see belcv)
SODS (mg/1): 5 7.5 2/month NQ
PH (SO): 6-9 2/month
Oil 4 Grease (lbs/day): 9.0 (30 mg/1) 17.5 (60 mg/1) 2/month BPI
COD (lbs/day): 261.6 403.2 2/month BPT
TSS (lbs/day): 24.2 (30 rg/1) 37.6 (45 mg/1) 2/month BPT
Turbidity (NTU): 50 2/month WQ
Phenols (lbs/day): 0.001 2/month WQ
Total Chromiuc (ug/1): 50 2/month WQ
Hex. Chromium (lbs/day): .03 0.07 2/month BPI
SCXl[ab(, S•(Crts n- I a Z
Toxicity Limi_: Acute Monitoring for Episodic Events
SPECIAL INSTRUCTIONS OR CONDITIONS
The following products are stored: petroleum products
No other products are to be stored without modification of this permit.
All discharges must be reported; all volumes of wastewater leaving the
facility must be monitored. If continuous monitoring is not feas_le, then
the discharger shall record the approximate times that the discha-e began
and ended, alcng with the instantaneous flow at the time of the e'_'_luent
sampling.
Monitor for benzene, toluene, ethyl benzene, and xylenes using an -?A
approved methcd to a detection level of 1 ug/l. Also monitor for =he
following compounds using an EPA approved method: MISS, EDS, 1,21
dichloroethane, napthalene, isopropyl ether, and lead.
SCHEDULE REQU .:EMENTS:
Monitoring and toxicity testing should be done on the same schedule (first
five discrete discharge events and then annually). Monitoring an` toxicity
samples should be taken within 24 hours of the beginning of the discharge.
A reopener cle-.se should be placed in the permit to allow for lir._cs to be
placed on tox_cants should the facilityfs whole effluent toxicity
monitoring indicate toxic effects.

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FOR APPROPRIATE DISCHARGERS, LIST COMPLETE GUIDELINE LIMITATIONS BELOW
Effluent Characteristics
Monthly
DailyAverage d Maximum
Comments
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Type of Product Produced
P/Day Produced
Effluent Guideline Reference
D0 fjlia frolea4K' mixes
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IV

GNC ENERGY CORPORATION
Rt. 4 Box 13
Lebanon, Ky. 40033
[phone]
August 17, 1990
Mr. Dale Overcash
Division of Environmental Management
Water Quality Section - Permitting
P.O. Box 2786
Raleigh, NC 27611-7687
RE: Amendment Request �7 c•.._ �' x ;" x��tk
:1G :r :! t ,1
Permit NO NC 0074241 -- <-�
GNC Energy, Greensboro, NC AUG 2 l`yyv
Guilford County
s
Dear Mr. Overcash:
I am formally requesting that the Permitting Branch of the Water Quality
Section consider this an application to amend our existing NPDES Permit
NO. 0074241. The existing permit authorizes GNC Energy to discharge
water from two points; 01 and 02. GNC is now able to consolidate the
flow being discharged from these two points, and no longer requires discharge
from outfall 02 (see attached map). If the amendment is approved, outfffl!
02 will be removed and sealed.
If you have any questions please feel free to contact me.
Sincerely,
a, 0,0,11t
Rudy Ball
President
RB/mm
cc: f ile

1.0
1.1
1.2
1.3
OVERVIEW OF FACILITY OPERATIONS
The GNC Facility at Greensboro, North Carolina is engaged in the terminaling,
blending, and the processing of petroleum feed stocks into petroleum products.
Terminaling Operations
The Facility is connected to the pipeline systems of Colonial Pipeline Co. and
Plantation Pipeline Co. This allows the* facility to receive petroleum products
(finished products, blending stocks, and feed stocks) for storage, distribution, and/or
processing.
The Facility also has a railroad spur that allows the facility to ship and receive
materials by rail.
The Facility has a truck unloading loading rack that allows the facility to ship and
receive petroleum products by trucks. However, the majority of products enter the
terminal via the pipeline systems, and are shipped out of the facility by tanker trucks.
Blending Operations
The facility is involved in blending:,, lY,
1) finished products, :�
2) stocks received into the facility, and AUG 2 1990
3) stocks produced by the on site processing unit,
such as: gasoline, kerosene, and diesel. 3=RATS
Processing Units
The facility contains a processing unit that takes pipeline interface or transmix, and
via an atmospheric distillation process, produces a gasoline blending component, #2
fuel oil or diesel, and kerosene. No water is added to the process.
1.4 Overview of Water Systems and Site Drainage
The facility is divided into different site water collection areas, as shown in
Attachment 3, the Facility Drainage System. In addition, the two areas where
hydrocarbons are handled, the Truck Loading Rack and the process areas, have
secondary containment. These secondary containment systems include curbed
concrete pads and oil/water separators with a capacity of 10,000 gallons each.
Secondary containment for the large bulk liquid storage tanks consists of earthen
dikes. The only discharge from the Facility is a small amount of wash -down water
from the process unit and rain water run-off.
446

2.0 DESCRIPTION OF WATER SYSTEMS, AND SITE DRAINAGE
2.1 Area 100, the Office, Laboratory, and Warehouse
This building is a metal building that contains the office, laboratory, a small
warehouse, and the only sanitary sewerage location in the Facility.
The Facility is not connected to the county sewer. Sanitary sewerage from the facility
is handled by septic tanks. The laboratory wash sink is also connected to the septic
system.
All hydrocarbon waste generated by the laboratory is disposed of through one of the
oil -water separators in the facility.
2.2 Area 200, the Truck Loading/Unloading Rack
The Truck Loading Rack consist of one hydrocarbon unloading lane, and two loading
lanes located on a curbed concrete secondary containment. This containment
structure is connected to an oil/water separator. The loading lanes are under a roofed
structure to limit the amount of rain water run-off going to the oil water separator.
2.3 Area 300, The Process Unit Area
The Process Unit Area, contains the atmospheric distillation unit. This area sits on
a curbed concrete pad connected to a 10,000 gallon oil/water separator. The
containment and oil/water separator are designed to handle the small amount of wash
water that is used to keep the area free of hydrocarbons and dirt, in addition to rain
water run-off.
The water from the oil/water separator is pumped to Area 400 which drains to Area
500 where it is eventually discharged to Outfall 01.
2.4 Area 400, Liquid Storage Tanks
Area 400, is the receiving area for the oil/water separator in Area 300 and Area 200.
The area is constructed with earthen berms, and an earthen floor. Area 400 also acts
as an evaporation pond if the rain water run-off is not too large.
When necessary, area 400 is drained to Area 500 via three S in. drains and thence to
Outfall 01.
AUG 1990
1
P RMjiS

2.5 Area 500, Liquid Storage Tanks
Area 500 is constructed with earthen berms and an earthen floor. Area 500 acts as
a large evaporation pond if the rain water run-off is not too large. The area drains
to Outfall 01, as necessary.
2.6 Area 600
Area 600 is all the area west of the Office Building not included in Areas 300, 400,
and 500. The rain water run-off from this area drains towards the southwest and is
discharged to Outfall 01.
2.7 Area 700
Area 700 is a metal building that serves as a warehouse for the facility. This building
has electrical service but no water. The rain water run-off to this building drains to
Area 600.
44Ag

OUTFALL 02
West Market Street (Hwy. 421)
AREA 700
AREA 300
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AREA 600
AREA 200
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AREA 500
Scale:
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inch Approx. 81 it.
—.oe 78
7.37.
C�_ — -
10" WATER OUTLET
OUTFALL 01

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Request No. 6155
FACT SHEET FOR WASTELOAD
ALLOCATIONS
RECENED
N.C. Dept. NRCD
Facility Name
:GNC Energy Corporation -
Greensboro
NPDES No.
:NC0074241
wfrf
J U L 2 9 AI
Type of Waste
:Petroleum Processing/Tank
Farm Runoff
Facility Status
:Existing
Permit Status
:Modification
Winston-Salem
Receiving Stream
:UT to East Fork Deep River
Regional Office
Stream Classification:WS-III
Subbasin
:03-06-08
County
:Guilford
Stream Characteristics:
Regional Office
:Winston-Salem
USGS # 02.0988.3505
Date 1988
Requestor
:Rosanne Barona
Drainage Area: 0.03
sq.mi.
Date of Request
:7/8/91
Summer 7Q10: 0.0
cfs
Topo Quad
:C19SW
Winter 7Q10: 0.0
cfs
Average Flow: 0 0 cfs
�0C1� '� 30Q2: 0.0 cfs
Wasteload Allocation Summary A-D � gS WVJA
ko a
Stormwater runoff from a gasoline tank farm and petroleum ,wA�``,�
processer/distributor. Treatment is by oil/water separator. Discharge is ��"O
to a drainage channels( o A stgim drdn which draAns to E. Fork Deep River.
Federal guidelines for petroleum processing apply. Since the discharge is
to a water supply, a phenols limit of 0.001 lbs/day is required of the
facility. Two outfalls have been combined; now outfall 001 only. Recommend
repeating the five acute toxicity tests due to test failures.
ADDITIONAL REVIEWER COMMENTS:
lD
m
WASTELOAD SENT TO EPA?(Major) _N_ (Y or N) C=
(if yes, then attach schematic, toxics spreadsheet, copy of model,ior
if not modeled, then old assumptions that were made, and description
of how fits into basinwide plane) -9
Recommended by: f Leap-- Date: % S(
Reviewed by /A�
Instream Assessment: ("{y �Y �_ Scol Date: q
Regional Supervisor:---1y� �� ,n� ��Q�.` Date: %p- 31- 9
W'S��9I Permits & Engineering: G,IX/(�JI/]V� Date: D L/
RETURN TO TECHNICAL SERVICES BY: n11r 16 1991
rtv
2�
t

-2-
Request No. 6155
Recommended Limits:
CONVENTIONAL PARAMETERS
Monthly Daily Monitoring
Average Maximum Frequency
Wasteflow (MGD):
BODS (mg/1):
pH (SU): It
Oil & Grease (lbs/day):
COD (lbs/day):
TSS (lbs/day):
Turbidity (NTU):
Phenols (lbs/day):
Total Chromium (ug/1):
Hex. Chromium (lbs/day):
TOXICS
monitor
5 7.5
6-9
9. 0 a,J 30It 17.5
201.6 403.2
24.2 ,nl 36,5t 37.6 aal 4ST11
50
0.001
50
.03 .07
Toxicity Limit: Acute Monitoring for Episodic Events
SPECIAL INSTRUCTIONS OR CONDITIONS
(see below)
2/month
WQ
2/month
2/month
BPT
2/month
BPT
2/month
BPT
2/month
WQ
2/month
WQ
2/month
WQ
2/month
BPT
The following products are stored: petroleum products
No other products are to be stored without modification of this permit.
difCy a aaS 4,6L#*ir- MAJ4 qrk
AllAvolumes of wastewater leaving the facility must be monitored. If
continuous monitoring is not feasible, then the discharger shall record the
approximate times that the discharge began and ended, along with the
instantaneous flow at the time of the effluent sampling. Ta*a4 --1"
Shalt hs men k Skwh
Monitor for benzene, toluene, ethyl benzene, and xylenes using an EPA 4(.ju-%*t� t4
approved method to a detection level of 1 ug/l. Also monitor for the
following compounds using an EPA approved method: MTBE, EDB, 1,2,
dichloroethane, napthalene, isopropyl ether, and lead.
SCHEDULE REQUIREMENTS:
Monitoring and toxicity testing should be done on the same schedule (first
five discrete discharge events and then annually). Monitoring and toxicity
samples should be taken within 24 hours of the beginning of the discharge.
A reopener clause should be placed in the permit to allow for limits to be
placed on toxicants should the facility's whole effluent toxicity
monitoring indicate toxic effects.

11/89
Facility Name rrIve ¢1-5 v l dvDera�i.*— _ _- Permit # WC6
ACUTE TOXICITY TESTING REQUIREMENT
Fathead Minnow 24 hr - Monitoring (Annual) for Episodic Events
The permittee shall conduct FIVE acute toxicity tests using protocols defined as definitive in
E.P.A. Document 600/4-85/013 entitled "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, using effluent collected as a single grab sample. Effluent samples
for self -monitoring purposes must be obtained below all waste treatment. Sampling and
subsequent testing will occur during the first five discrete discharge events after the effective date
of this permit. After monitoring of the fast five toxicity tests; the permittee will conduct one test
annually, with the annual period beginning in January of the next calendar year. The annual test
requirement must be performed and reported by June 30. If no discharge occurs by June 30,
notification willbe made to the Division byrthis date. Toxicity testing will be performed on the
next dischargeeventfor the annualtestnegtriremen .
The parameter code 'orthis test. is,TWC;':. All."dPity testing results required as part of this ...
was perrorm
to be sent to
Discharge Form (MR-1) for the month in which it
code. Additionally, DEM Form AT-1(original)is
Attention: Environmental Sciences Branch
North QxoHna Division of
Environmental Management
P.O. Box 27687
Raleigh, N.C. 27611
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.
S hould any test data from either these monitoring requirements or tests performed by the North �r
Carolina Division of Environmental Management 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.
Failure to submit suitable test results will constitute noncompliance with monitoring requirements.
7Q10 0— cfs
Permitted Flow vas ARA MGD
IWC% 100
Basin & Sub -Basin 3-0- 08
Receiving Stream C. l�ec v
County (-, t.Ail
Recommended by:
/. _ 1, 1�.�
**Acute Toxicity(Fathead Minnow 24 hr) Monitoring, EPISODIC, See Part _E[F_, Conditioner' .