NC0022209_Wasteload Allocation_19910220

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO022209
PERMITTEE NAME: Star Enterprise / Greensboro Sales Terminal
Facility Status: Existing
Permit Status: Renewal
Major Minor �1
Pipe No.: 001
Design Capacity:
Domestic (% of Flow):
Industrial (% of Flow): 100 %
Comments:
Stormwater accumulation thru oil/water separator
STREAM INDEX: 17-2-1
RECEIVING STREAM: an unnamed tributary to Long Branch
Class: WS-III
Sub -Basin: 03-06-08
Reference USGS Quad: C19SW, Guilford (please attach)
County: Guilford
Regional Office: Winston-Salem Regional Office
Previous Exp. Date: 9/30/91 Treatment Plant Class: I
Classification changes within three miles:
> 3mi.
Requested b)
Prepared by:
Reviewed by
w(
Modeler
Date Rec.
#
EptS
l
m
matt
Drainage Area (mil- ) - Avg. Streamflow (cfs):
7Q10 (cfs) 0 Winter 7Q10 (cfs) D 30Q2 (cfs) 0
Toxicity Limits: IWC % Chronic
Aauewc! — E�o:soo��
Instream Monitoring:
Parameters
Upstream Location
Downstream Location
-------------------- RECOMMENDED EFFLUENT LIMITS
Mo. Avg. Daily Max. � Min/Max Mon. Freq.
wasteflow (MGD): monitor (see below)
Oil and Grease (mg/1): 30 60 2/month
Settleable Solids (ml/1): 0.1 0.2 2/month
pH (su): 6-9 2/month
Turbidity (NTU): 50 2/month
Phenols (lb,/day)
: 0.001 2/month
Toxicity Testing Req.: acute monitoring for episodic events
----------------------------- COMMENTS ----------------------------------------
The following products are stored: petroleum products.
No other products are to be stored without modification of this permit.
All volumes of wastewater leaving the facility must be monitored. If
continuous monitoring is not feasible, then discharger shall record the
approximate times that discharge began and ended, along with the
instantaneous flow at the time of effluent sampling.
Monitor for benzene, toluene, ethylbenzene, and xylepes using an EPA approved
method to a detection level of 1 ug/l. Also monitor for the following
compounds using an EPA approved method: EDB (dibromoethane), MTBE (methyl
tert-butyl ether), 1,2 dichloroethane, napthalene, isoproply ether and lead.
Monitoring and toxicity testing should be ddone on the same schedule.
Monitoring and toxicity samples should be taken within 29 hours of the
beginning of 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 unacceptable toxic effects.
Comments:
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-1- Request No. 6031
FACT SHEET FOR WASTELOAD ALLOCATIONS
RECEIVED
Facility Name :Star Enterprise
N.C. Dept. NRCD
NPDES No. :NC0022209
Type of Waste :Tank Farm Runoff F E B 11 1991
Facility Status :Existing
Permit Status :Renewal sib, Winston-Salem
Receiving Stream :UT to Long Branch (Pr'X*1V%01"", Regional Office
Stream Classification:WS-III
Subbasin :03-06-08
County
:Guilford
Stream Characteristics:
Regional Office
:Winston-Salem
USGS #
Date
Requestor
:Jule Shanklin
Drainage
Area:
sq.mi.
Date of Request
:1/30/91
Summer
7Q10:
0
cfs
Topo Quad
:C19SW
Winter
7Q10:
0
cfs
Average
Flow:
0
cfs
30Q2:
0
cfs
Wasteload Allocation Summary
Stormwater runoff from a gasoline tank farm. Treatment is by oil/water
separator. Discharge is to a ditch which drains to Long Branch. Standard
permit limits for petroleum storage apply. Facility has met all
monitoring requirements since Feb. 1989. Since there is toxic ty�data for
5 discharge events, annual toxicity testing now required. Recommend region
look into compliance data for phenols.
ADDITIONAL REVIEWER COMMENTS:
FEB T � 199E
,. ���aIT.0 1G rAar��,rrpaN�
WASTELOAD SENT TO EPA?(Major) _N_
(Y or N)
(if yes, then attach schematic,
toxics spreadsheet, copy of
model, or
if not modeled, then old assumptions that were made,
and description
of how fits into basinwide plan)
Recommended by:
Date:
Reviewed by
�-
Z
Instream Assessment:
Gpl„AM
Date:
Regional Supervisor:
<o-�"-�-
Date:
`
Permits & Engineering:
Date:
RETURN TO TECHNICAL SERVICES BY: MAR 0 7 1991

Request No. 6031
CONVENTIONAL PARAMETERS
Existing Limits:
Monthly
Daily
Monitoring
Average
Maximum
Frequency
Wasteflow (MGD):
monitor
(see below)
Settleable Solids (ml/1): 0.1
0.2
2/month
pH (SU):
6-9
2/month
Oil & Grease (mg/1):
30
60
2/month
Turbidity (NTU):
50
2/month
Phenols (lbs/day):
0.001
2/month
Recommended Limits:
Monthly
Daily
Monitoring
Average
Maximum
Frequency
Wasteflow (MGD):
monitor
(see below)
Settleable Solids (ml/1): 0.1
0.2
2/month
pH (SU):
6-9
2/month
Oil & Grease (mg/1):
30
60
2/month
Turbidity (NTU):
50
2/month
Phenols (lbs/day):
0.001
2/month
TOXICS
Toxicity Limit: Acute Monitoring for Episodic Events
Monitoring Schedule: annually
SPECIAL INSTRUCTIONS OR CONDITIONS
The following products are stored: petroleum products
No other products are to be stored without modification of this permit.
All volumes 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.
Monitor for benzene, toluene, ethyl benzene, and xylenes using an EPA
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.
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.

W
7/90
Facility Name J4-ar- Fn. eeprise- 6W-ektsbaro Permit# NC-OpaaaD
(Ta..%t T--ejrw. 1?4nj
ACUTE TOXICITY TESTING REQUIREMENT
Fathead Minnow 24 hr - Monitoring (Annual)
The permittee shall conduct annual 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 discrete discharge event after the effective date of this
permit. 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
September 30. If no discharge occurs by September 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, DEM Form AT-1 (original) is
to be sent to the following address:
Attention: Environmental Sciences Branch
North Carolina 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.
Should any test data from either these monitoring requirements or tests performed by the North
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 "a MGD
IWC% 10D
Basin & Sub -Basin 0 3 -0(, - 02'
Receiving Stream Wr 4v 'L-6n5 ISrwit- ,
County f uA-6,�
Recommended by:
*Acute Toxicity(Fathead Minnow 24 hr) Monitoring, ANNUAL, See Part 3 , Condition_67