NC0003549_Fact Sheet_20180828

DENR / DWQ / NPDES
EXPEDITED FACT SHEET - NPDES PERMIT DEVELOPMENT
NPDES Permit NC0003549
Emily DelDuco., NPDES Program./ 919-707-9125 06Aug2018
Facility Summary
This facility confines stormwater and maintenance wastewater behind bermed areas [dikes]. These
dikes are equipped with drain pipes controlled by hand -operated valves, normally closed. This
controlled discharge constitutes a point source to the environment under zero flow receiving
stream conditions [30Q2 and 7Q10 = 0.0 cfs]. Moreover, because this facility stores fuel
hydrocarbons at the ground surface in excess of one (1) million gallons, it is specifically excluded
from coverage under conventional stormwater regulations, therefore historically permitted as an
individual NPDES permit, Class 1.
WET Testin;~ — This permit requires Acute Whole Effluent Toxicity (WET) testing using Fathead
Minnow (Pimephales promelas), 24 -hr definitive, LC -50 >100% [TAE6C]. Since last renewal
(April 2008) the Permittee reports all WET testing as "PASS" in 8 of 8 samples at Outfall 002; 5
of 5 samples at Outfall 003. Acute WET testing frequency was relaxed to Annually prior to the
previous permit cycle - no changes recommended.
Fact Sheet
Renewal 2013 -- NPDES Pennit N00003549
Page 1
Facility Information
Facility Name
Selma South Terminal
Applicant
TransMontaigne Company, LP
Contact
J D Hall, [[e-mail]]
Applicant Address
PO Box 5660, Denver, CO
Facility Address
26427 West Oak Street, Selma 27576
Permitted Flow (MGD)
Not limited
Type of Waste
Stormwater held in proximity to above -ground storage tanks
(ASTs) containing fuel hydrocarbons >lmillion gallons.
Facility Class
PCNC
County
Johnston
Facility Status
Renewal
Regional
Office
RRO
Stream Characteristics
Receiving Stream
UT to Mill Creek,
Neuse River Basin
Stream Classification
WS -N; NSW
Stream Segment
[27-40]
Drainage basin
Neuse
Summer 7Q10 (cfs)
0.0
Subbasin
03-04-02
Winter 7Q10 (cfs)
0.0
Use Support
30Q2 (cfs)
0.0
303(d) Listed
No
Average Flow (cfs)
0.0
State Grid
E25SE
IWC (%)
100
USGS Topo Quad
Selma, NC
Facility Summary
This facility confines stormwater and maintenance wastewater behind bermed areas [dikes]. These
dikes are equipped with drain pipes controlled by hand -operated valves, normally closed. This
controlled discharge constitutes a point source to the environment under zero flow receiving
stream conditions [30Q2 and 7Q10 = 0.0 cfs]. Moreover, because this facility stores fuel
hydrocarbons at the ground surface in excess of one (1) million gallons, it is specifically excluded
from coverage under conventional stormwater regulations, therefore historically permitted as an
individual NPDES permit, Class 1.
WET Testin;~ — This permit requires Acute Whole Effluent Toxicity (WET) testing using Fathead
Minnow (Pimephales promelas), 24 -hr definitive, LC -50 >100% [TAE6C]. Since last renewal
(April 2008) the Permittee reports all WET testing as "PASS" in 8 of 8 samples at Outfall 002; 5
of 5 samples at Outfall 003. Acute WET testing frequency was relaxed to Annually prior to the
previous permit cycle - no changes recommended.
Fact Sheet
Renewal 2013 -- NPDES Pennit N00003549
Page 1

FLOW ( MGD} - August 2013- August 2018:
Outfall 002 Parameter --50050 - Flow, in
Analysis Variable: Flow, MGD
N
Minimum
Year
N Obs Mean
Std Dev
Minimum
Maximum
2013
2 0.228
0.089
0.165
0.292
2014
8 0.436
0.376
0.034
1.095
2015
6 0.168
0.090
0.015
0.259
2016
5 0.213
0.064
0.160
0.312
2017
4 0.072
0.028
0.033
0.099
2018
1 3 0.238
0.071
0.160
0.297
1.00
Outfall 003 Parameter=50050 - Flow, in
34030 - Benzene
Analysis Variable: Flow, MGD
0.001
Year
N Obs Mean
Std Dev
Minimum
Maximum
2013
5 0.007
0.003
0.003
0.011
2014
6 0.058
0.069
0.020
0.193
2015
9 0.026
0.039
0.004
0.128
2016
4 0.034
0.046
0.009
0.103
2017
3 0.021
0.015
0.011
0.038
2018
2 0.010
0.003
0.008
0.012
Outfall 002 - Reasonable Potential Analysis ( RPA ) - Not Conducted Because:
Variable: Value
Parameter
N
Minimum
Maximum
Reasonable
Obs
Potential
00070 - Turbidity
20
0.81
15.00
no
00556 - Oil & Grease
20
5.00
6.36
no
01051 - Lead, Total (as Pb)
2
3.08
7.50
no
22417 - Methyl Tert-Butyl Ether (MTBE)
20
0.001
2.00
Not detected
32730 - Phenolics, Total Recoverable
18
0.00
5.00
no
34010 - Toluene
20
0.001
1.00
Not detected
34030 - Benzene
20
0.001
1.00
Not detected
34371 - Ethylbenzene
20
0.001
1.00
Not detected
50050 - Flow, in conduit or thru treatment plant
28
0.015
1.095
n/a
76028 - Base Neutrals & Acid (Method 625),Efflnt
17
0.00
1.00
no
81551 - Xylene (mix of m+o+p)
20
0.001
2.00
Not detected
C0530 - Solids, Total Suspended - Concentration 20 1.00 21.80 no
TAE6C - LC50 Static 24hr Acute Pimephales 6 pass pass n/a
Units: Turbidity: (ntu) ; Oil & Grease, Solids: (mg/1); MTBE, Phenolics, Toluene, Benzene,
Ethylbenzene, Phenol, Xylene: (µgel) ; LC50: pass/fail ; 76028 & 76029: 1=yes, O=no.
Fact Sheet
Renewal -- NPDES NC0003549
Page 2

• BTEX parameters (20 samples); not detected above the method detection limit (MDL).
• Oil & Grease measured 20 times; detected once above 5 mg/1 at 6.36 mg/l.
• Total Suspended Solids (TSS) was detected in 15 of 20 sample events, maximum 21.8
mg/L.
• Turbidity was measured 20 times to a maximum of 15 ntu.
• MTBE (20 sample events); not detected
• Phenolic compounds detected in 4 of 18 samples to max of 0.294 µgel
Outfall 003 - Reasonable Potential Analysis RPA — Not Conducted Because:
Variable: Value
Parameter
N
Minimum
Maximum
Reasonable
Obs
Potential
00070 - Turbidity
19
0.64
5.50
no
00556 - Oil & Grease
20
5.00
5.00
no
22417 - Methyl Tert-Butyl Ether (MTBE)
20
0.001
5.00
Not detected
32730 - Phenolics, Total Recoverable
17
0.00
5.00
no
34010 - Toluene
20
0.00
1.00
Not detected
34030- Benzene
20
0.00
1.00
Not detected
34371 - Ethylbenzene
20
0.00
1.00
Not detected
50050 - Flow, in conduit or thru treatment plant
29
0.003
0.193
no
76028 - Base Neutrals & Acid (Method 625),Efflnt
16
0.00
1.00
n/a
81551 - Xylene (mix of m+o+p)
20
0.001
3.00
Not detected
C0530 - Solids, Total Suspended - Concentration
20
1.00
250.00
no
TAE6C - LC50 Static 24hr Acute Pimephales 1
6
pass
pass
n/a
• BTEX parameters (20 samples); not detected above the method detection limit (MDL).
• Oil & Grease not detected in 20 samples.
• Total Suspended Solids (TSS) maximum detected in 8 of 20 sampling events: max 7.61
mg/L
• Turbidity was measured 19 times to a maximum of 5.5 ntu.
• MTBE was not detected
• Phenolic compounds detected in 3 of 17 samples to max of 2.04 ggu
For Renewal —
• The Division has added Special Condition A. (4) which describes eDMR reporting
requirements
• Updated map, included HUC in description
No other changes to permit limits or monitoring.
Fact Sheet
Renewal -- NPDES NC0003549
Page 3

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