NC0021954_Wasteload Allocation_19920714

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO021954
PERMITTEE NAME: Citgo Petroleum
FACILITY NAME: Citgo Petroleum / Selma Terminal
Facility Status: Existing
Permit Status: Renewal
Major
Pipe No.:
11
Minor
Design Capacity:
Domestic (% of Flow):
Industrial (% of Flow): 100 %
Comments:
discharge from an oil/water separator
RECEIVING STREAM: m un =ed
(29 �)
to Mill Creek
Class:_C-NSW - tj6=�
Sub -Basin: 03-04-02
Reference USGS Quad: E25SE (please attach)
County: Johnston
Regional Office: Raleigh Regional Office
Previous Exp. Date: 1/31/92 Treatment Plant Class: no class
Classification changes within three miles:
change to WS-III NSW at the Neuse River. PLOTTEI
Requested by: Randy Kepler Date: 1/31/92
Prepared by: O Bye Date:
Reviewed by: Date: oZ
Modeler
Date Rec.
#
Drainage Area (min ) 0,1 Avg. Streamflow (cfs): O
7Q10 (cfs) O Winter 7Q10 (cfs) p 30Q2 (cfs) O
Toxicity Limits: IWC % Acute hronic
Instream Monitoring: Ept.Sod<<- �n �
Parameters
Upstream Location
Downstream Location
Effluent
Characteristics
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;\ CITGO PETROLEUM Id h•• /
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Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Citgo Petroleum/Selma--pipe 001
NCO021954
Industrial - 100%
Existing
Renewal
UT to Nesue River
WS-III-NSW
03-04-02
Johnston
Raleigh Regional Office
Randy Kepler
2/4/92
E25SE
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Request # 6711
Stream Characteristic:
USGS #
Date:
1988 WLA
Drainage Area (mi2):
0.1
Summer 7Q10 (cfs):
0.0
Winter 7QI0 (cfs):
0.0
Average Flow (cfs):
0.0
30Q2 (cfs):
0.0
IWC (%):
100
Contaminated stormNwater runoff from oil and pertoleum storage facility greater than one million
gallon total storage capacity. Toxicity test for February results < 5. Aquatic toxicity has requested
a response from the facility for this result. Until a suitable response the episodic toxicity test will
be recommended. No leaded fuels stored on site.
Requirements and additional comments from
Recommended by:
Reviewed by
Instream Assessmeni
Oegional Supervisor
Permits & Engineerii
iINICALSERVICEsaY: JUL 14 1992
REMW'
oval 1 7 mt
Raleigh Regional Office

Existing Limits
Flow
Settleable Solids (mg/1):
pH (SU):
Oil & Grease (mg/1):
Turbidity (NTU):
Phenols (#/day):
Benzene
Toluene
Xylene
Recommended Limits
Flow
TSS (mg/1):
pH (SU):
Oil & Grease (mg/1):
Turbidity (NTU):
Phenols (#/day) Daily Max.:
Benzene
Toluene
Xylene
Ethylbenzene
Daily. Ave
Daily Max
monitor
0.1
0.2
6.0-9.0
30
60
50
0.01
monitor
monitor
monitor
(04
Daily Aw.
Mon. Frew
WO/EL
77
monitor
SM45
2/mon
EL
3U/y s
6.0-9.0
2/mon
EL
GtoG ✓
IPI}S
2/mon
EL
— 3OAL0 /17
50
0.01
2/mon
EL
'00le-'
momtor
monitor
monitor
monitor
Acute Toxicity Monitoring (Episodic)
(See page three for special monitoring requirments.)
rA
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
New pretreatment information
Failing toxicity test
Other (onsite toxicity study, interaction, etc.)
Instream data
New regulations/standards/procedures
New facility information
The following parameter(s) are water quality limited:
'M 0
For some parameters, the available load capacity of the immediate receiving water will be
consumed. This may affect future water quality based effluent limitations for additional
dischargers within this portion of the watershed.
•'
X No parameters are water quality limited, but this discharge may affect future allocations.

INSTREAM MONITORING REQUIREMENTS
Upstream Location:
Downstream Location:
Parameters:
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION
Miscellaneous information pertinent to the renewal or new permit for this discharge.
Include relationship to the Basinwide Management Plan.
SPECIAL INSTRUCTIONS OR CONDITIONS
Monitoring shall be conducted during the first five discrete discharge events after the
effective date of the permit, and on an annual basis thereafter, with the annual period
y� Q
beginning in January of the next calendar year. The annual test must be performed and
reported by June 30. If no discharge occurs by June 30, notification must be made to the
Division by this date, and monitoring must be performed on the next discharge event for
j�
the annual monitoring requirements.
Permit must contain flow monitoring requirement such that all volumes of wastewater
leaving the facility are monitored. If continuous monitoring is not feasible, then discharger
shall record the approximate times that discharge bagan and ended, along with the
instaneous flow at the time of effluent sampling. Chemical parameters should be monitored
using an EPA approved method to a detection level of at least 1 ppb (µg/l). This
monitoring should be performed during the first five discharge events and annually
thereafter.
WASTELOAD SENT TO EPA? (Major) (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 wasteload fits into basinwide plan.)
Additional Information attached? — (Y or N) If yes, explain with attachments.

Facility Name (l , t Permit # ► 2t Pipe # an L
i
ACUTE TOXICITY MONITORING (EPISODIC)
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 (Pfinephales
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 fast five discrete discharge events after the effective date
of this permit. After monitoring of the fast five toxicity tests, the pemrittee 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 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
4401 Reedy Creek Rd.
Raleigh, N.C. 27607
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 cfs
Permitted Flowsa r c MGD
IWC j %
Basin & Sub -basin
Receiving Stm ead a
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WFIOLE E17FLUENT TrY TESTLNG 01SELF.MONrlORING SUMMARY] Mon,Mar16.1992
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OIARLOTIli RKHTRAININGACADEMY
PERM AC MONfP.N HR EPIS PTHD(GRAB)
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10

To: Permits and Engineering Unit
Water Quality Section
(NPDESSR.INR-3/92,RH)
DATE: April 14, 1992
NPDES STAFF REPORT AND RECOMMENDATIONS RECEIVED
COUNTY: Johnston
APR 2 0 1992
PERMIT NUMBER: NCO021954 (renewal)
TECHNICAL SUPPORT BRANCH
PART I - GENERAL INFORMATION
1. Facility and Address: Citgo Petroleum Corp. - Selma Terminal
SR1003 and Oak Street Extension
P.O. Box 428
Selma, N.C. 27576
2. Date of Investigation: March 5, 1992.
3. Report Prepared by: Rick Hiers, Environmental Engineer.
4. Person Contacted & Telephone Number: Rusty Smith, Citgo -
[phone].
5. Directions to Site: Travel Highway 70 South from Raleigh, turn
left onto Highway 70A toward Selma, cross the Neuse River, turn
left onto SR1929 (Oak Street Extension), and the site is on the
left at the corner of SR1929 and SR1003 (Buffalo Road).
6. Location of Discharge Points (see attached USGS map extract with
discharge point indicated).
a. Outfall USGS Quad Number USGS Quad Name
001 & 002 E25SE Selma, NC
b. Outfall Latitude Longitude
001 35033'09" 78018112"
002 35033'02" 78018114"
7. Size (land available for expansion and upgrading): There is
adequate land available.
8. Topography (including relationship to 100-year flood plain):
Flat and above the flood plain.

9. Location of Nearest Dwelling: Over 500 feet away, diagonally
across the intersection of SR1003 and SR1929 from the facility.
10. Description of Receiving Stream or Affected Surface Waters.
a. Name: Both outfalls enter the same UT to Mill Creek, but
via different ditches.
b. Classification: C NSW
C. River Basin and Subbasin Number: 03:04:02
d. Receiving Stream Features and Pertinent Downstream Uses:
The receiving stream for Outfall 001 is a ditch behind the
facility which is tributary to Mill Creek. The receiving
stream for Outfall 002 is a roadside ditch along SR1929
which is also tributary to Mill Creek. There do not appear
to be any other uses of the ditches, but there are several
other similar permitted oil terminal discharges into Mill
Creek or its UTs downstream of Citgo and before the Neuse
River.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Description of Wastewater.
a. Type of Wastewater: 0 $ Domestic
100 % Industrial
*
b. Volume of Wastewater (design capacity): Variable MGD
* Flow is dependent on rainfall.
C. Types and Quantities of Industrial Wastewater: Potentially
fuel -contaminated stormwater from the tank farm containment
area and the fuel loading racks.
d. Prevalent Toxic Constituents in Industrial Wastewater:
Gasoline, #2 fuel oil, diesel fuel, and kerosene.
2. Description of Industrial Processes and Applicable 40 CFR Parts
and Subparts: None applicable.
3. Industrial Production Rates (in appropriate mass/day units).
a. Long Term Average Production Rate: Not applicable. No
40CFR Part.

b. Highest Monthly Production in Past 12 Months: Not
applicable. No 40CFR Part.
C. Highest Yearly Production in Past 5 Years: Not applicable.
No 40CFR Part.
4. Treatment System Information.
a. Status of Treatment System: x Existing
Proposed
b. Description of Treatment System: The existing system
consists of two oil/water separators which treat two
separate outfalls. The separator for Outfall 001 is
partially above ground and is approximately 30 feet long,
six feet wide, and five feet deep. The separator for
Outfall 002 is underground and is of unknown dimensions.
Both units have separate oil storage tanks for removed
product.
5. Residual Solids Treatment and Disposal Method: Accumulated
product and sludge needing removal would be pumped and hauled by
an approved removal service.
6. Treatment System Classification (rating sheet attached, if
appropriate): No classification (3 total points).
7. Codes.
a. SIC Code: 5171
b. Wastewater Codes: 37, 39, 73
C. Main Treatment Unit Code: 53000
S. Treatment System Compliance Status: Neither facility was
discharging at the time of the site visit. The separator at
Outfall 001 appeared to be properly separating the influent to
the unit. The permittee has been monitoring and reporting as
required and the discharge from Outfall 001 has been in
compliance with all permit limits. There has been no discharge
from Outfall 002 in the past year.
PART III - OTHER PERTINENT INFORMATION
1. Special Monitoring Requests: None. Current monitoring
requirements appear to be sufficient.

2. Additional Effluent Limits Requests: None
appear to be sufficient.
3. Other: See below.
PART IV - EVALUATION AND RECOMMENDATIONS
Current limits
The Raleigh Regional Office (RRO) has reviewed the submitted
information and has conducted a site visit for the subject permit
renewal request. The treatment units appeared to be properly
maintained and operated based on the site visit, and the discharges
have been in compliance with all permit conditions based on the files.
Therefore, the RRO recommends that the permit be renewed as requested,
and in accordance with the basinwide permitting plan. The permit
should contain all new standard conditions for these types of
discharges. The first three items in the supplement to the cover
sheet can now be deleted, and item four can be changed to read '...
two existing oil water separators (Outfalls 001 and 002)...I since the
second separator has been constructed and is in operation. Both
outfalls are into a UT to Mill Creek (outfall 002 is not into a UT to
the Neuse River as currently shown), so item five can be left as is.
6& k6
Report Writer
9^
nal Water Quality Supery
�l Zt
Date
TD:RH:rh

JOC PRIORITY PROJECT: Yes_No_X_
If Yes, JOC No.
To: Permits and Engineering Unit
Water Quality Section
Attention: Susan Wilson
AUTHORIZATION TO CONSTRUCT
NPDES PERMIT
REPORT AND RECOMMENDATIONS
Date: September 8, 1994
County: Johnston
Permit No. NC0021954
PART I - GENERAL INFORMATION
1. Facility Name and Current Address:CITGO Petroleum Selma
Terminal
c/o CITGO Petroleum Corp.
P.O. Box 47427
Doraville, Georgia 30362
2. Date of most recent NPDES Staff Report (attach copy):
April 14, 1992
3. Changes since previous action on NPDES Permit: none
4. Verify Discharge Point(s) on plans with current NPDES
Permit. List for all discharge points:
Latitude: 35033/09f/ Longitude: 78018/121/
Attach a USGS map extract and indicate treatment facility
site and discharge point on map.
U.S.G.S. Quad No. E25SE U.S.G.S. Quad Name Selma, NC
5. Treatment plant classification (attach completed rating
sheet):Class I
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Existing treatment facility
a. What is the current permitted capacity of the
facility? variable
b. Date(s) and construction activities allowed by
previous Authorizations to Construct issued in
the previous two (2) years:none
C. What is the actual treatment capacity of the
current facility (design volume)? 10 GPM

d. Please provide a description of existing or
substantially constructed wastewater
treatment facilities: 10 GPM oil/water separator
2. Please provide a description of proposed wastewater
treatment facilities: for outfall 001, replace existing
oil/water separator with a 21,000 gallon equalization
tank, a 10 GPM "stripperator" unit consisting of an
oil/water separator and air stripper combination followed
by dual carbon canisters
3. Residuals handling and utilization/disposal scheme:pumped
by approved removal service
PART III - EVALUATION AND RECOMMENDATION
The RRO has reviewed the plans for the proposed
treatment system upgrade at the Citgo Selma Terminal. The
proposal is to replace the existing oil/water separator for
outfall 001 with a 21,000 gal equalization tank, 10 GPM
"stripperator" consisting of a coalescing oil/water separator,
air stripper and dual carbon filtration. This is a
significant upgrade of the existing facility and should solve
the facilities compliance problems.
Outfall 002 is not involved in this A to C, and
remains unchanged.
The plans where not signed and sealed by a N.C.P.E.
This must be rectified prior to issuance. Once this is
addressed, the RRO recommends issuance of the A to C.
SitMature Of Report Preparer
j- Water Qua ty egional Supervisor
Date
H:\AC21954.SR

NPDES WASTE LOAD ALLOCATION
PERMIT NO.: NCO021954
PERMITTEE NAME: Citgo Petroleum
FACILITY NAME: Citgo Petroleum / Selma Terminal
Facility Status: Existing
Permit Status: Renewal
Major Minor 1
Pipe No.: 002
Design Capacity:
Domestic (% of Flow):
Industrial (% of Flow):
100 %
Comments:
discharge from an oil/water separator
v\Y 4A:u Cve4u—
RECEIVING STREAM:
Class: WS-III NSW
Sub -Basin: 03-04-02
Reference USGS Quad: E25SE (please attach)
County: Johnston
Regional Office: Raleigh Regional Office
Previous Exp. Date: 1/31/92 Treatment Plant Class: no class
Classification changes within three miles:
no change within three miles PLOTTED
Requested by:. 19 R�W Kepler
Prepared by: 6 pt))FL-
:m
e
Date:
1/31/92
J.
Modeler Date Rec. #
NJ -a L
Drainage Area (miz) O, l Avg. Streamflow (cfs): b
7Q10 (cfs) C) Winter 7Q10 (cfs) D 30Q2 (cfs)
Toxicity Limits: IWC % Acu Chronic
Instream Monitoring: L
Parameters
Upstream
Downstream
Location
Location
Effluent
Characteristics
Qa
i�b • �-
446
a quo
4s
a
0
YnA .*Y fn
n�tio�5
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Fo G{JlechBw
ep h 2
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a4 L1454- I
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amvgll�
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A. (3).
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS Final
NPDES No.
NC0021954
During the period beginning on the effective date of the Permit and lasting until
expiration the
Permittee is authorized to discharge from outfall(s) serial numbers) 002. Such discharges shall be
limited and monitored by the Permittee as specified below:
Effluent Characteristics Discharge Limitations
Monitoring Requirements
Lbs da Other Units (Specify)
Measurement Sample
*Sample
Daily Avg. Daily Max. Daily Avg. Daily Max.
Frequency Tie
Location
Flow
Oil and Grease
Upon discharge Instantaneous
E
30.0 mg/l 60.0 mg/1
Upon discharge Grab
E
Settleable
Solids 0.1 ml/1 0.2 ml/1
Upon discharge Grab
E
Phenols
0.01
Upon discharge Grab
E
Turbidity
** **
Upon discharge Grab
U, D
Acute Toxicity
*** ***
**** Grab
E
Benzene
**** Grab
E
Toluene
**** Grab
E
Xylene
**** Grab
E
Sample locations: E - Effluent, U - Upstream, D - Downstream
Samples taken in compliance with the monitoring requirements specified above shall be taken
at the
following locations: the nearest accessible point after final treatment but prior to actual
discharge to
or mixing the receiving waters, except for turbidity.
Monitoring will be conducted during normal work hours. The facility
shall record the approximate
time the
discharge begins and stops during a discharge period.
This Permit imposes no limitation on the discharge of stormwater runoff uncontaminated by any industrial or
commerc.jal activity and not discharge through any oil -water separator or other treatment equipment or
facility.
C) °—� * discharge shall not cause the turbidity of the receiving water to exceed 50 NTU. If the turbidity
eds these levels due to natural background conditions, the discharge level cannot cause any increase in
Y :o-? p turbidity in the receiving water.
r
T m
r Continued...
0 o
n ,o
C%

�
AN
�KN�88Vll
0i/3i/92
`
�O�PLIANC� ,wILUATIDN ANALY%I% REPORT
NAIL i
P�RMIT--�C8O2�9�4
r�4-oO2 REPORT PERIOD 98t2-940
LOC--E
FfCILITY--C=5
PETRUL:�/M
DESIGN FLAW--
.0088 CLA7%--O
QCATION--%ELM4
REGIDN/CpUN7Y--05 jUPN%TON
��0050
TAA3Y TVA3D 80488 88545 00556
3273O
�DNTH
C/MCD CERI4OAC
DAPH49AC PH RE%/%ET OIL-GR%E
PHENOL%
LIMIT
NOL
NOL NOL 9.O 6.8 F A F 30.808
| 90/-2
.0808
O S 0,O-0.0F .8 .8O8
.00O8
Q888
'OO88 8 O ... ... ... _.... ... ...
_
... .... ... -... ---.... .... .... .... .... ... ..... -.... .... .... .... .... .... --.... .... .... .... ... -.... .... .... .... .... .... .... .... .... .... .... .... .... .... .... ... .... .... .... .... --
.0088 O O 8OO .O 8OO .O8O8
M�D 9A 9A %U ML/L M�/L LC%/DAY

Facility Name:
NPDES No.:
Type of Waste:
Facility Status:
Permit Status:
Receiving Stream:
Stream Classification:
Subbasin:
County:
Regional Office:
Requestor:
Date of Request:
Topo Quad:
FACT SHEET FOR WASTELOAD ALLOCATION
Citgo Petroleum/Selma--pipe 002
NC0021954
Industrial - 100%
Existing
Renewal
UT to Nesue River
WS-III-NSW
03-04-02
Johnston
Raleigh Regional Office
Randy Kepler
2/4/92
E25SE
Wasteload Allocation Summary
(approach taken, correspondence with region, EPA, etc.)
Request # 6712
C
N
W
V c.
�f)
Stream Characteristic:
r rn
USGS #
=r^
Date:
1988 WLA=)
==-o
Drainage Area (mi2):
0.1
Summer 7QI0 (cfs):
0.0
-;
Winter 7Q10 (cfs):
0.0
Average Flow (cfs):
0.0
30Q2 (cfs):
0.0
IWC (%):
100
Contaminated storm water runoff from oil and pertoleum storage facility greater than one million
gallon total storage capacity. No leaded fuels stored on site.
Recommended by:
Reviewed by
Instream Assessment:
egional Supervisor.
Pemtits & Engineerin
c—
BPAOkA,
RETURN TO TECHNICAL SERVICES BY: JUL 14 1992
l%Vi4 1 7 o,,,
Raleigh Regional Office

Existing Limits
Flow
Settleable Solids (mg/1):
pH (SU):
Oil & Grease (mg/1):
Turbidity (NTU):
Phenols (#/day):
Benzene
Toluene
Xylene
Recommended Limits
Flow
TSS (mg/1):
pH (SU):
Oil & Grease (mg/1):
Turbidity (NTU):
Phenols (#/day) Daily Max.:
Benzene
Toluene
Xylene
Ethylbenzene
Daily. Ave
Daily Max
monitor
0.1
0.2
6.0-9.0
30
60
50
0.01
monitor
monitor
monitor
Daily .AAfe.
Mon. Frea. WO/EL
monitor
.a45
2/mon
6.0-9.0
2/mon
W 4-5
2/mon
50
2/mon
0.01
monitor
monitor
monitor
monitor
Acute Toxicity Monitoring (Episodic)
(See page three for special monitoring requirments.)
Limits Changes Due To:
Change in 7Q10 data
Change in stream classification
Relocation of discharge
Change in wasteflow
New pretreatment information
Failing toxicity test
Other (onsite toxicity study, interaction, etc.)
Instream data
New regulations/standards/procedures
New facility information
The following parameter(s) are water quality limited:
s 'WI aA
Y
EL 30 ��/—.1 f 7 7
EL 30/6°oY�Wo
EL
EL
re�✓���
Al, rc-
C
Y: 1 : 4
For some parameters, the available load capacity of the immediate receiving water will be
consumed. This may affect future water quality based effluent limitations for additional
dischargers within this portion of the watershed.
IC I
X No parameters are water quality limited, but this discharge may affect future allocations.

INSTREAM MONITORING REQUIREMENTS
Upstream Location:
Downstream Location:
Parameters:
Special instream monitoring locations or monitoring frequencies:
MISCELLANEOUS INFORMATION
Miscellaneous information pertinent to the renewal or new permit for this discharge.
Include relationship to the Basinwide Management Plan.
SPECIAL INSTRUCTIONS OR CONDITIONS
Monitoring shall be conducted during the fast five discrete discharge events after the
effective date of the permit, and on an annual basis thereafter, with the annual period
\G beginning in January of the next calendar year. The annual test must be performed and
�( reported by June 30. If no discharge occurs by June 30, notification must be made to the
Division by this date, and monitoring must be performed on the next discharge event for
the annual monitoring requirements.
\` Permit must contain flow monitoring requirement such that all volumes of wastewater
leaving the facility are monitored. If continuous monitoring is not feasible, then discharger
shall record the approximate times that discharge bagan and ended, along with the
instaneous flow at the time of effluent sampling. Chemical parameters should be monitored
using an EPA approved method to a detection level of at least 1 ppb (µg/1). This
monitoring should be performed during the first five discharge events and annually
thereafter.
WASTELOAD SENT TO EPA? (Major) (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 wasteload fits into basinwide plan.)
Additional Information attached? — (Y or N) If yes, explain with attachments.

Facility Name �4g, 1 okal2 Uun. 1 Q� rv� Permit # gto8zLjqr4_ Pipe # coo z—
ACUTE TOXICITY MONITORING (EPISODIC)
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 fast five discrete discharge events after the effective date
of this permit. After monitoring of the first 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 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
4401 Reedy Creek Rd.
Raleigh, N.C. 27607
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 pen -nit 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 cfs
Permitted Flow pjsb 1 tc MGD
IWC tob %
Basin & Sub -basin P'a - c>4 — n Z
Receiving Stream JLt-- 4-a W,lt C,-
County ',V—oNnns+ot
EAM Fathead 24 Version 10191
Mramended by:
A
Date S i 9 r