NC0031038_PERMIT ISSUANCE_20110414

NPDES DOCUMENT SCANNING COVER SHEET
NPDES Permit:
NC0031038
Permit Issuance . '.
Document Type:
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Correspondence
Speculative Limits
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
April 14, 2011
This dCNDXX"zeat is prix►ted on reuse paper - ignore any
coxztexit oxx the reverse side

ern
CDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaveq Perdue Colleen H. Sullins Dee Freeman
Governor Director Secretary
April 14 2011
Michael A. Martin, Operations Manager
Colonial Pipeline Company (CPC)
P.O. Box 87
Paw Creek, North Carolina 28130
Subject: Issuance of NPDES Permit NC0031038
CPC Charlotte Delivery Facility — Class 1
7425 Kenstead Circle, Charlotte
Mecklenburg County
Dear Mr. Martin:
The Division of Water Quality (the Division) hereby issues the attached NPDES permit for the
subject facility. We issue this permit pursuant to 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 (EPA) dated October 15, 2007, or as subsequently amended.
Division's Analysis of Colonial Pipeline Company (CPC) Data - The Division applied EPA's
mandated Reasonable Potential Analysis (RPA) to CPC's monitoring databases for both Total
Suspended Solids (TSS) and Turbidity at each outfall. Both databases show reasonable potential
to exceed their respective surface water -quality standard at eight (8) of nine (9) outfalls.
Consequently to protect water quality, the Division must maintain an increased monitoring
frequency and limit each parameter, as reflected in the draft permit, consistent with permits
statewide. While your permit does not currently require instream monitoring, it may be prudent to
collect upstream and downstream samples if possible for comparison to end -of -pipe values.
Changes to the Draft Permit — The Division hereby acknowledges CPC's written comments on the
draft permit (received via email from John W. Culbreath, March 18, 2011), noting concerns about
TSS vs. Turbidity, and we offer this response. The Division's review of effluent data from bulk -
storage sites similar to CPC (from 1989 through 2005) revealed a potential to violate the respective
surface water -quality standards for both TSS and Turbidity. We subsequently required, and
continue to require, monitoring of both parameters in these permits statewide. We have therefore
made no changes to your draft permit with regard to TSS/Turbidity. After further review, we have
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St, Raleigh, North Carolina27604 - - One
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6746 VoCarolina,
Memel wvpw.nnily eA r alhve Agmha //y
M Equal Opponuniryl A/firmatire Action Empbyer ![S"

.....a ': . .x•.: ii .F •. C.. tl': .1 , • ..v. .. .. `i 1Lyl .: lei '.-.F .. I-�-,.. _
update the oLitfalls,to reflect where they contact the xecelying-stream environment (REF: Google
Maps), and have converted the LAVLONG into degrees only, according to the latest numbering
convention (see Supplement to Cover Sheet).
Chances to Your Previous Permit - Based on our evaluation of your monitoring data submitted
during the previous permit cycle, the Division has added permit limits for Benzene, Toluene,
Turbidity, and Total Phenolic Compounds. You must comply with these limits at the outfalls
spgcified [see section A. (L) and related footnotes]. For your convenience we have added
parameter codes for each required analytical method. Finally, the Division has updated your
facility description specifying nine (9) outfalls and their locations (see Supplement to Cover
Sheet), as clarified during the renewal draft review.
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable, you have the right to an adjudicatory hearing, upon written request submitted within
thirty (30) days after receiving this letter. Your request must take the form of a written petition
conforming to Chapter 150B of the North Carolina General Statutes, and you must file it with the
office of Administrative Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-
6714. Unless such a demand is made, this permit shall be final and binding.
This permit is not transferable except after notifying the Division of Water Quality. The Division
may require permit modification, or revocation and re -issuance. Please note that this permit does
not affect your legal obligation to obtain other permits required by the Division of Water Quality,
the Division of Land Resources, the Coastal Area Management Act, or other federal or local
governments.
If you have questions, or if we can further assist you, please contact Joe Corporon at
[ioe.comoronancderingovl or call [phone].
espe tfully, F y1AT
O Fq0
/` �O
Coleen H. Sullins
Enclosure and attachment: NPDES Permit NCO031038 (final); 31038 RPA Summary 2011
hc: Central Files
MRO/SWPS, Attn: Roger Edwards and Samar Bou-Ghazale
NPDES Program Files
ec: Aquatic Toxicity Unit, Attn Susan Meadows
Mecklenburg County, Attn Erin Hall / John McCulloch
CG&L: Attn. Kim Colson
1617 Mail Service Center, Ralegh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Ralegh, North Carolina 27604 One
Phone: [phone]FAX: 9IM07JA921Customer Service: 1-877-623-6748 ,. ,ViCarolinaInternetOpportncwateryua tine Ag urallry
An Equal Opportunity 1 Affirmative Action Employer it

Permit NCO031038
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 provisions 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,
Colonial Pipeline Company (CPC)
is hereby authorized to discharge wastewater from outfalls located at the
CPC - Charlotte Delivery Facility
7524 Kenstead Circle, Charlotte
Mecklenburg County
to receiving waters designated as an unnamed tributary of Gum Branch within the Catawba 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 May 1, 2011.
This permit and authorization to discharge shall expire at midnight on June 30, 2015.
Signed this day April 14, 2011.
C n H. Sullins, Directo
rvision of Water Quality
By Authority of the Environmental Management Commission

Permit NC0031038
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the
permit conditions, requirements, terns, and provisions included herein.
Colonial Pipeline Company (CPC)
- is hereby authorized'to:
1. continue to operate an existing Water Pollution Control System to treat stornwater, washdown
and calibration wastewaters in proximity to appurtenant piping and above -ground storage tanks
(ASTs) for petroleum fuel -hydrocarbons and distillates; with surface bulk -storage in excess of
one million gallons utilizing treatment facilities as;
• oil/water separator
• diked secondary -containment areas for ASTs and appurtenant piping
• retention pond
each respective point -source outfall discharging via a hand -operated valve (normally closed); and
each outfall's associated product monitored as
OUTFALL
LAT/LONG°
PRODUCT
Outfall 002
N35.28444°, W80.93556°
Gasoline AST
Outfall 003
N35.29639°, W80.93556°
Gasoline AST
Outfall 004
N35.28694°, W80.93472°
Gasoline AST
Outfall 005
N35.28722°, W80.93361°
Gasoline AST
Outfall 006
N35.28500°, W80.93444°
Gasoline AST
Outfall 007
N35.28472°, W80.93222°
Distillate AST
Outfall 008
N35.29661°, W80.93194°
Distillate AST
Outfall 009
N35.28389°, W80.93556°
Distillate AST
Outfall 010
N35.28611°, W80.932220
(MYO) Manifold Yard Outfall -
under -drain, product valves and
piping; oil/water separator (runoff
includes artesian spring water
originating up gradient)
located at the CPC - Charlotte Delivery Facility, 7524 Kenstead Circle, Charlotte, Mecklenburg
County, and
2. discharge from said treatment works via the above outfalls, at locations specified above and on
the attached map, into an unnamed tributary of Gum Branch [stream segment 11-120-5], a
waterbody currently classified WS-IV within subbasin 03-08-34 of the Catawba River Basin.

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Outfalls (9) * ;1
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Colonial Pipeline Company
CPC -Charlotte Delivery Facility
Latitude / Longitude: [See Supplement to Cover Sheet]
Receiving Stream: UTlo Gum Branch[11-120-5] Stream Class: WS-IV
Drainage Basin: Catawba River Basin Sub -Basin: 03-08-34
State Grid / USGS Ound: FI SSW / Mt. Island Lake, NC
_----
Facility
Location
(not to scale)
North NPDES Permit NCO031038
Mecklenburg County

Permit NC0031038
A. (1.): EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS'
Beginning on the effective date and lasting until expiration, the Permittee is authorized to discharge from
Outfalls 002, 003, 004, 005, 006, 007, 008, 009 and 010.. Such discharges shall be limited and
monitored by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
[Parameter Code]'
LIMITS;. ,.
MONITORING REQUIREMENTS ;
Monthly,
Average
[.-'Daily
Maximum
Measurement
-: Frequency
Sample
Type.
Sample
Location
[500501 Flow
Episodic
7-
Options
Effluent
[00530 Total Sus ended Solids
45.0 mg/L
Monthly
Grab
Effluent
00556 Oil and Grease
Monthly
': Grab "`
Effluent
[000761 Turbidity
50 NTU
Monthly
Grab
Effluent
(32730] Total Phenolic Compounds
300 u L
Monthly
Grab
Effluent
1340301 Benzene
Monthly
Grab
Effluent
[340101 Toluene
Monthly
Grab
Effluent
[34030] Benzene
1.19 u L
Monthly
Grab
Effluent
[34010] Toluene
1.1 u L
Monthly
Grab
Effluent
[343711 Ethyl Benzene
Monthly
Grab
Effluent
[915511 X lene
Monthly
Grab
Effluent
22417 MTBE
Monthly
Grab
Effluent
TAE6Cj Acute Toxicity
Annually
Grab
Effluent
EPA Method 625
Semi-annually
Grab
Effluent
Footnotes
1. Flow shall be monitored with each discharge event. During periods of no flow, the Permittee
shall submit a signed, monthly Discharge Monitoring Report (DMR) indicating "No discharge."
Flow may be monitored using any one of four methods:
a) measure flow continuously;
b). calculate flow [see section A. (3.) Rational Equation] based on total rainfall per
unit area draining to the outfall; exclude built -upon areas (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. TSS/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. Turbidity — Effluent shall not cause receiving stream turbidity to exceed 50 NTU. If receiving stream
background turbidity exceeds 50 NTU, effluent shall not cause this background value to increase.
4. Permit limit applies to Outfall 009 only.
5. Permit limit applies to Outfall 10 only.
6. Acute Toxicity (Fathead Minnow, 24-hour static test), annual samples to be collected concurrently with
Benzene, Toluene, Ethyl Benzene, and Xylene (BTEX) samples [see Special Condition A. (2.)].
Conditions
a. The Permittee shall discharge no floating solids or foam visible in other than trace amounts.
— - b: The Permittee shall discharge no tank solids, tank bottom water, or the rag layer.
c. Following hydrostatic testing (tank or pipe), the Permittee shall discharge no test -water without
documenting that benzene concentration do not exceed 1.19 µg/I, and toluene concentrations do
not exceed 11 µg/L.

Permit NCO031038
A. (2.) -ACUTE TOXICITY MONITORING- Pass/Fail (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 annualust 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 T s _
y AE6C. 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 Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section 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.

„P&mit,NC0031038
A. (3.) FLOW MEASUREMENT RATIONAL
The Rational Equation: Q=KUCIA, where:
Q = flow (peak flow rate (cfs or m3/sec)
Ku = units conversation factor = 1.008 for U.S. standard units (usually
ignored because it is so close to 1), or 0:278 for SI units
C = dimensionless runoff coefficient for the watershed, loosely defined
as the ratio of runoff to rainfall
I intensity of rainfall taken from the intensity -duration -frequency
curves for the specified design return period at the time of
concentration, tc (in/h or mm/h). tc = time of concentration (time
after the beginning of rainfall excess when all portions of the
drainage basin are contributing simultaneously to flow at the
outlet).
A = area of tributary watershed (acres or km2)
The rational equation is used to calculate the runoff from a region, given:
• the runoff coefficient which accounts for infiltration and other
potential losses in the region,
• the rainfall intensity to the region,
• the time it takes for runoff to travel from the region's upper reaches
to its outlet, and the region's drainage area.

FACT SHEET
COMPLEX EXPEDITED - PERMIT RENEWAL 2011
Basic Information
Permit Writer/Date
Joe R. Corporon L.G. / 0717eb 2011; updated 14A r20I I
Permit Number
NCO031038
Facility Name
Colonial Pipeline Company (CPC) - Paw Creek
Terminal [AST fuel storage >1M gallons];
nine 9 outfalls 002 through 010
Regional Office / Contact
MRO / Staff Report by Samar Bou-Ghazale, P.E.
Basin Name/Sub-basin number
Catawba / 03-08-34
Receiving Stream
UT to Gum Branch [stream segment 11-120-5)
Discharge to dry ditch zero -flow conditions
Stream Classification in Permit
WS-IV
Does permit need Daily Max NH3 limits?
No
Does permit need TRC limits/language?
No
Does permit have toxicity testing?
Yes - fuel bulk storage Acute - TAE6C annual
Does permit have Special Conditions?
No
Does permit have instream monitoring?
No
Is the stream impaired on 303 d list)?
No
Any obvious compliance concerns?
No — see attached BIMS Report and
Staff Report O 27Jan2010
Any permit mods since lastpermit?
No
Current expiration date
June 30, 2010
New expiration date
June 30, 2015
Comments received on Draft Permit?
Yes - See below, Permittee Comments on Draft.
Considering the Previous Permit: For the 2005 permit cycle, DWQ determined that the Permittee's
upstream neighbors (including bulk -storage facilities) do in fact, contribute to the stormwater runoff to
tributaries lateral to Colonial's property perimeter and to the settling pond at Colonial's downstream
boundary (see map). Therefore, these lateral receiving streams and the down -stream pond were deemed
waters of the state (influent not wholly controlled by the Permittee). Each of nine (9) Colonial outfalls was
therefore determined to require individual monitoring at its point of discharge. DWQ "phased" the 2005
permit to allow the Permittee a compliance period after which they were required to switch from sampling
the pond only to sampling and reporting each individual Outfall (Phase 1 ending — Phase II beginning
March 1, 2008). Monitoring data indicate that the Permittee complied with this requirement.
Total Phenols: Because the compliance record shows some confusion in 2006-2007 regarding the correct
test method, the permit and cover letter will clarify that this facility shall report Total Phenolic Compounds
(BIMS parameter code 32730) instead of Phenol (singular). Future compliance shall be evaluated relative
to the permit limit/stream standard 300 µg/L (discharge under "zero flow" conditions) for Permittees who
do not chlorinate their effluent but discharge to waterbodies classified water supply (WS), in accord with
statewide permitting guidance for phenols (NPDES Memorandum December 15, 2010).
Reasonable Potential Analysis (RPA): This renewal includes an RPA conducted on the monitoring
database noted above and on earlier data for the total monitoring period January 2006 through December
2010. These data are reported for nine (9) outfalls specified and recorded in BIMS as Outfalls 002 through
010. Databases show reasonable potential (RP) for Total Suspended Solids (TSS) at 8 of 9 outfalls
(exception Outfall 004). Likewise, databases show (RP) for Turbidity at 8 of 9 outfalls (exception Outfall
003). TSS is already limited at all outfalls (previous permit). For simplicity of monitoring and tracking, the
Division shall also require Turbidity at all outfalls, monitoring required Monthly [decision based on BPJ].

Outfall 009 data show RP for Total Phenolic Compounds. Outfall 010 data show RP for both Benzene and
Toluene; no other outfalls show RP for these parameters (see attached Analytical Summary — RPA Results).
Therefore, the limits for these parameter shall apply to these specific outfalls only, as designated by
footnotes [see permit Section A.(1.)].
Compliance History: BIMS records show multiple permit "reporting" violations, but few have resulted in
Notices of Violation (NOVs). These did not proceed to assessed civil penalties. Minor "reporting"
violations identified as BIMS errors relating to parameters no longer required by the Permittee, or were
identified as "results submitted out of sequence." These are demarked in BIMS by the Mooresville
Regional Office (MRO) with the response "No action-BPJ" [best professional judgment]. However, NOVs
were issued for a TSS permit limit (45 mg/L) violation exceeded by 49 % at Outfall 003 (July 2008). The
Permittee also exceeded its Benzene limit (1.19 µg/L) at Outfall 010 by 295% in November 2009 and
again in December 2009 by 824%. These violations also resulted in NOVs but they were not assessed
penalties. No violations have been recorded since December 2009.
Toxicity Testing History: Toxicity Testing was performed by the Permittee at all 9 outfalls as they
entered the environment — no changes recommended. Acute Toxicity annual results were reported in the
first quarter of the last 3 years (2008, 2009, and 2010); all indicate "pass" @ 100% effluent concentrations
(see attach tox data summary).
Renewal Summary: For renewal DWQ updated the facility map, facility description, and added parameter
codes to the Effluent Table, A. (1.), considering the Division's established Permitting Guidance for fuel
hydrocarbon bulk -storage facilities statewide. As required by current RPA results and the Division's best
professional judgment (BPJ), monitoring and permit limits will be required according to following:
Changes to Permit Limits and Monitoring
Parameter
Permit Limit
Comments
Eight (8) of nine (9) outfalls show reasonable potential. Therefore, for
Turbidity
50 NTU
simplicity and consistency, apply permit limit of 50 NTU to all outfalls
[BPJ]. Monitoring increased to Monthly.
Previously limited - no change to permit. Apply limit to all outfalls
TSS
45 mg/L
[BPJ] for simplicity and consistency [Nine (9) of ten (10) outfalls show
reasonable potential.].
Phenols
300 ug/L
Added to Outfall 009 only (RP = Yes), see footnote.
Benzene
1.19 ug/
Added to Outfall 010 only (RP = Yes), see footnote.
Toluene
11 ug/L
Added to Outfall 010 only (RP = Yes), see footnote.
Permittee Comments on Draft -- John W. Culbreath (CPC's Environmental Specialist) provided written
comments on the draft permit via email (March 18, 2011), noting concerns about TSS and Turbidity. He
asked NOT to alter the previous permit. Joe presented the Permittee's arguments in Staff Meeting and the
response was negative. We noted in the final cover letter that databases for both parameters show
reasonable potential to exceed their respective surface water -quality standard at eight (8) of nine (9)
outfalls (see attached RPA Summary) — request denied.
Updates for Final Permit — addressed Permittee's comments on draft permit RE: TSS vs. Turbidity;
updated LAT/LONG numbers to reflect degrees only (according to latest convention); updated outfall
locations to reflect point of contact with the receiving -stream environment.

Colonial Pipline Company - Charlotte Delivery Facility
Compliance History for NCO031038
Database Queried January 2006 - December 2010
PERMIT RFALLI I PAMMETER JIATON DP FREWENOF MERE LINK-ATEC OVR La V TON TYPE NOlAi1CN ACTION
VblATo.nOMMENT
NCW310M
001
Beo. omnaa; Minute,
va
Parameter MBY, None
NC0031038
001
Bevme OYJLW MVWN
uy1
Frwuenq Volatiin NO ACMn,Fade, Rmmlq Enor Samples¢OIIeC1od in May 20X. Real mWvrtOlq Parameter cute
NCW31038
001
Benzene ooDoWe Wooly
st
FN,.,VbWa,ai NO Action. Dab Emry Enor
Samples oauemW in June 2006. Reported Wei alorM Parameter code
NCW31038
Wt
Bwaeae 0513n0a Wooly
uyl
Fn ueN,YdaW, No Acfun, bvAb Panne
PanrvOe¢ not rmperl W nbnlbr OUBatl Wt as of Marta 1, 2008.
MCM31038
Wt
EWNbanuane M'M Money
uN
ParamlRr A(SYg None
NCM31038
Wt
EWylerznie OYJIAB Money
tat
No A[Mn, Malb Panne
PaMtlee Not NgWred W monlWr Oudall Wl as Of Mal 1,2",
NCM31038
Wt
LCSO STAT 24Nr Act 0MIM Annua9y
paFatt
ParynebrAfinYg None
NCM31038
Wt
MCWyI Ter,BuNl Eon MI1001bmWN
uyl
Flwun VbbMn No Rtlbn. dvald Perm)
PelMnee not required W monlbr Dutfall Wi as Of Marl 1,2",
NCW310M
WI
Oi 6Grwe OY11N weey
min
Frwumcy Matson No ACIM, dvald Penal
Peonliee col regWrW b manor coffee W1 as 01 Mm11, 2000,
NC03103a
001
Phenol. SYgle Come ON11W Q.WNu,
uyl
PabmM Misaip Nmre
NCW310M
Wt
Pla".Sin Comp Ber000e Q..u,
u98
Fniquen%Vpbuw NOAdbn.DBWENW Erin
Samples mOectal n June 2006. Rena l eaW Mara pararroal code
NCM31038
Wt
PhemLSYgle Comp GODNAD6 puadady
uyt
FniquenyVdA No Ala. Faulty Pannonia Erin Smples m0eeb4 in Sepl¢mbM 2036. RearII wan x DoWwWbr code
NCM31038
Wt
Phenol, Seale Comp 1MIM OWN"
uyA
once
Faqumry VdYlvr No PGdc FxLy Rwo-Dp Enp Sampl6 mIIGLYM W D¢Ctlnbilr 2006, RG loci Wt xA pe rgrarna.
NCW31W8
W1
PheM.Sigle Come BYl1A] Onarkdy
wd
Frtque yYdalvn NO Alpl, Faclry ReppYq Emr$anples WllecteO in January2W]. Reported vnW xmrq parameter code
d.
NM310M
WI
Pliond. Some CwnP 06001 OuarMly
uyl
Flwumry Vdedon No Aabn,FrJYy Real Ermr Samples mllec4M in April 2W]. Reported YAW aaorq parameMCWe
NCM310U
WI
Mandl. Single Cwnp OQ4647 Qu b
uyt
Frwuwn,Ydaeon NO Agbn,FxAdy RepmNq Enw Samples mAected in Sept 2007. Reported YAW anon, pareau rCode
NCW31038
Wt
Phend.Ssple COmp IMIM] Quell
uyl
FaWWW,ViW. No ACKn. Facray Remon9 E. Smrpll cNAecled M DMmber 2W7. RepOrlWw aron0 p3amelb noon (PhaN Cunneal of phmd)
NCM31038
Wt
Solds. TOW Suspmc O"VOU Wane,
myl
Fmuewy YgbUan No Acton. Nvdd Perme
PamilWe not rwWrM In nWNW OuC¢Y W1 W Of Mal 1, 2W0,
N00031038
WI
Toluene amift NbnmN
uyl
P.Ner Wool None
NCO31038
Wt
Toluene o&DiM Waco,
WA
FnpuwcyVdaWrl No AppN Faulty RemNq Error Samples mllaclM W May 20W. R¢WrIM win xmrq paameler coda
NC0031038
WI
Tduen¢ aNiOgfi MomhN
uyl
Frepupyy Ydaem NO Adbn. Data EMyfrtOr
Samples mlledNl in June 2006, R NxWn
fedMI O Pammder w0a
rvcW3IWe
WI
rdaene O$/31ga Mammon
uP1
Frwaanq vgbeon No AGbn, Wvalb Parana
u
PemlWw mlrwdrW amOn4or ounm Wl as of Marl 1.200e.
NCW31038
Wt
Xyi. 03 im NWnWN
Iryl
ParamHp Woun, None
NCW310]8
Wt
XOWl a OYifog waWN
uyl
Flwuencyvial. No Aclbn. aveld Panne
Pamithecol PNW,cl in Mount a Wi Be Of M#11. 2000.
NCW31038
W2
Base NNtrSS B ACb OWM8 Samiann
uy1
FlwuwCy YglWcrl No .BPI
Mblbmg oondl Mw12008
NODOM38
012
Base NGWWSBAW IMIMU SemNnn
uy1
Fnn, c Ydm. No Action. BPI
WNWdq mMUded Sept 2W8
NCM31038
002
LC50 STAT24hr ACL 1011N8 AmualN
Ntent
PsanMala®p Note
NCM310M
003
Bev NeuOysdA l OYJ008 SGmiam
Lyll
Frtqumcy Ydahn No Axton. BPI
WalWNg coMIKnb My 2008
NCOYJ10b
003
Bav NMrakdAla] IMIM Smsann
un
Frwumryvbblbn No Aaca. BPJ
Wand, mMntM Sept 2008
NCW310M
003
SdbL TOW SugaIC OVIDole Monon,
myl
a5. 67. QB9 Day MVFIum E6[PrMYM bNOV
NCW31038
Wl
Base NeuVa48 AW OYJ0100 Sunniaul
y1q
FmquMry Violahln No AMn. BPJ
Monlbmp mMuctl Martah 2008
NCW310M
00l
B. Neal &Acb lV31N8 S.,.n
ulu
FrwaTry VWvWn No AdaW. BPJ
ModWrb9 coal S'L 2"
NCM31038
05
Bav Neutrals B Ace MMM8 SGmiann
uy0
Fu umryvW n NOA aW, BPJ
WoUnio l9 mrxl t Mel2W8
NCW31DM
005
Babe Neunils 6 Al 121J1108 SGmiann
uya
Frwu yYdffinl Na Acal BPJ
Mandarin, conducted Sept 2008
NCM310M
We
Base NeuhalslAl 0650,09 SGmiann
unll
Freq yYdffinl No Alien. BPJ
WNW, mMuC Merck 2000
NCW31038
006
Bav Nevia l 1MIM Smlim
u011
Freq yYdalbn No A.. BPI
Moniarvg mnductM Sept 2000
14 W31038
W]
B. Neanea B Add 06*08 Swum
u9A
Frwuenry Vblmon No AcAbn, BPJ
MonlamM mrducdW Mal 20W
NCW310M
W]
Bev NNleals 6 Al 1MIM SGmiann
LA
FrequwryvbloWn NO Acton BPJ -
Fbniadngt ut Sept 2000
NCW31038
008
Bee Natenes 6 AW 0fiGQBB Semiann
too
Frequerlry Yolalbn NO AMn, BPJ
Aoul cWAWM Marsh 2000
NCM310M
W0
Bala, Neuhals 6 ACL1 1MIM SGmiann
uyl
Frequene vMaWn NO AGM, BPJ
MOdbNg cane lSept 2000
NCW31 W8
OW
Brie NgWI,,& 106MONB SbniWn
idyl
Frequerrry Vga01n1 lb AGMLBPJ
WNW" mrdutM Wron 2000
NCW310]8
W9
B.Nwbds6Al 1MIM Swuann
u,A
Freq yYdffiIn NO A44On, BPJ
WNWW l COnauCIW Sept 20W
14 W310]8
WO
Base Neu0ds 6 Al' OYlDOB Senuam
upd
Fnwu yvblalrvl No Aaa n,BPJ
WNW, CmduC WPO 200E
NCW310U
WO
Base NeWds B AW IMtM Ser Win
,unll
FrwuGyVblalbn NoA ,BPJ
Noniwn, mluted 5e,L 2008
14CW31W8
WO
BGnz¢v 1111Ytl9 NbnaN
unll
1,19 l] 294.96 Day MMnum E¢ PrmeMW NOV
NCW310M
WO
Benzine IMM9 wale,
aw
1,19 11. U4.37 Day MaJnum E.al PrMeM b NOV
LAST VPMTEO RYN
BN tpmO.cTn
mmcb all m
mama.atbcoq
morels Wbcm
bimspmconon
manW.albcm
bniprPol
marpa kbCm
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bin spend..
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mama.anacm
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mamaamcm
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mama al c
mama Wbma
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march all.
mamadbcm
blmapmd.cmn
mama.aeal
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mama.albcm
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num Mini
mama. Wool
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mafo, wt o
nn.elbcco
N. albcco
marda.akama
mada.am o
0 feel,
phvJaMey

Final Cover Letter - ATTACHMENT A
Colonial Pipeline - Charlotte Delivery Facility
NCO031038 Notes on Chemical Analysis for NPDES Permit Renewal - Jae Corporon G4Feb2011
as reported on DMRs for the period January 2006 - December 2010
Benner. Toluene Ethyleenzene Xylene (ur/L) NAPR- TVABIDT55 OII&Grease PHENOLS
RY
OUTFACE . 1. . .. 1. Ip✓U . (Maa/Avel THAI6NE P AWAX.) INiwJAGe) IMaa/Avel rcwv.
1.
Outfa II 001 monitoring
TOX Elou -MGD
(%pass) IMav/Ave)
Outfall 002
Resu0s
<1
<1
<S
<3
M
22/7J
3617.8
<5
<5
<50
300%
0.540/0.240
SamPlecount
29
29
29
29
12
13
29
29
29
3
80
RP=YES
RP=YES
Outfall 003
Results
<1
<1
<1
<3
NT
13/5.1
67/9.4
5.4/5.0
<5
<50
100%
0.173/O.MO
Samplacount
29
29
29
29
12
13
29
29
29
3
80
RP=no
Its =YES
Outfall 004
Results
<3
<3
<3
<3
Nr
21/6.4
8.6/3.7
<5
b
<50
100%
0.300/0.070
Sample count
29
29
29
29
12
13
29
29
29
3
BO
RP=YES
RP=no
Outfall 005
Results
<1
<3
<3
<3
W
28/7.3
20/6.0
<5
<5
66/51
300%
0.120/0.030
Sample count
29
29
29
29
11
16
29
29
29
3
77
RP=YES
RP=YES
RP=no
Outfall 006
Results
<3
<3
<3
<3
Nr
32/12.1
33/13.3
<5
<5
90/53
100%
0.900/0.390
SamPlecount
29
29
29
29
11
13
29
29
29
3
79
RP=YES
RIP =YES
RP=no
Outfall 007
Results
<1
<3
<1
<3
Nr
26/11.5
31/11.2
<5
<5
c50
SOW%
0.120/0.030
Samplecount
29
29
29
29
11
13
29
29
29
3
77
Its =YES
I "am
Outfall 008
Results
<1
<i
<1
<3
Nr
230/32
13/4.7
6.5/5.0
<5
100/52
300%
0."0/0.070
Samplecount
29
29
29
29
11
13
29
29
29
3
81
RP=YES
RP=YES
RP=no
Outfall 009
Results
<1
<1
<1
<3
Nr
170/39
14/4.0
<5
N0
100/90
300%
0.180/0.a30
Sample count
29
29
29
29
11
13
29
29
29
3
76
RP=YES
Its =YES
RP=YES
Outfall 010
(MYO)
Results
11/1.4
22/1.9
3.1/1.1
I8/3.9
NT
67/19
25/7.1
<5
NO
73/51
1006
0.374/0,012
Sample count
30
30
30
30
11
13
29
3D
29
3
883
RP=YES
RP=YES
-
-
RP=YES
RP=YES
RP=no

REASONABLE POTENTIAL ANALYSIS
Colonial Pipeline - Charlotte
NCO031038
Time Period Jan2006-Dec2010
Ow (MGD)
0.540
7010S (Cis)
0
7010 W (C/s)
0
30Q2 (CIS)
0
Avg. Stream Flow, CA (Cis)
0
Rec'ving Stream
Gum Branch
113AW➢IA1179I
IWC(%)Q 7Qf0S
100
Q 701OW
100
Q 3002
100
Q QA
100
Stream Class WS-IV
Outfall 002
Qw=0.54MGD
Outfall 002 RPA assumes MAX Flow repo)
STANDARDS&
PARAMETER
TYPE
CRITERIA 2)
POL
Unite
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
(i)
NCWOS/ Y.FAV/
Chmnlc Acute
n ROef. MaxRMCw AllowebN Qv
Acute: NIA
TSS
NC
45
2
mg/L
13 13
205
Chronic: 45 -
-_-_---------_--
MaxPmdCw»Chronic
Continue monitoring Monthly
Acute: N/A
Turbidity
NC
50
0.05
ntu
12 11
99
Chmnlc 50
I
-----------------------------
MaxPredCW >> Chronic
Add permit Limit -. Inclrease monitoring to Monthly
Legend:
C = Carcinogenic
NC = Non -carcinogenic
A=Aesthetic
Freshwater Discharge
31038 Colonial RPA 2011 - Outlall 002, rpa
2/BI2011

Table 1. Project Information
Facility Name
WWTP Grade
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
Stream Class
7010s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
Time Period
Data Source(s)
Colonial Pipeline - Charlotte
I
NC0031038
002
0.540
,Gum Branch'
W S-Iv
0.0
0.0
0.0
0.0
Jan2006-Dec2010
BIMS
Table 2. Parameters of Concern
Name Type Chronic. Modifier Acute PQL Units
Par01
Par02
Par03
Par04
Par05
Par06
Par10
Par11
Par12
Par13 I '
Par14 TSS NC 45 ' 2 mg/L
Par`151 Turbidity . NC 50 0.05 1 ntu
31038 Colonial RPA 2011 - Outfall 002, input
2/8/2011

REASONABLE POTENTIAL ANALYSIS
TSS
Turbidity
Date Data
BDL=1/2DL
Results
Dale Data
BDL-112DL
Results
1
2008
2.
2.0
Sid Dev.
9.6914
1 ;,.
18.
18D
Sid Dev.
• 7.4200
2
2008
36.
36.0
Mean
7,7846
2
"'`,d
< 0.05
0.025
Mean
7.7271
3
2008
2.
2.0
C.V.
1.2449
3
5.2
5.2
C.V.
0.9603
4
2008
7.2
7.2
n
13
4 rse; :•
10,
10.0
n
12
5
2008
17.
17.0
5
7.3
7.3
6
2008
4.6
4.6
13.0
Mutt Factor=
Max. Value
5.6900
36.0
6
7
22.
1.4
22.0
1.4
Mutt Factor =
Max. Value
4.4800
7
2008
13.
mg/
22.0 ntu
8
2008
2.
2.0
Max. Fred Cw
204.8 mg/
8 r
2.8
2.8
Max. Pred Cw
98.8 nlu
9
2008
2A
2.4
9
2.
2.0
10
2008
2.
2.0
10"{w, v`
17.
17.0
11
2009
4.6
4.6
11 ^
5.3
5.3
12
2009
2.
2.0%
1.7
1.7
13 _
2009
6.4
6.4
13
14
14
...I
1
15
' I
16;
16
17" _
, r< 1
17
"`
18
19
19
20 tr
iir.
'
20
21
21
22`'1
>• 't�
22
23
24
27 SS
27
r
.
(y
29^ x�..:I
,�,
ILr.
e
30� ,
��
30
f. l
31
:.
31
32
s'
32
33
33 r
/.
34
34
_
35
:I
35
337
�P"
4
38
38
39:M,.__
39 ;
401
�'.�
-
40
41
''+
41
42 -
'x
-1
42 r'w
dt�
43 7�
a
43
44 s >iy
.r
44
45
45
19
46
47
;
;
47
48-r
48
49
49
-
50 ` '
51 n,,.
"'
50 Y
51 d.,,
52
52
53'..r
53
54
55 •'
'
'�
54 +
55 `III
A
66
58
57
57
58f,
58
59
59 "1"4`
60
-
60
199
199
200
200 i
31038 Colonial RPA 2011 - Outfall 002, data
2- 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Colonial Pipeline - Charlotte
NCO031038
Time Period Jan2006-Dec2010
Ow (MGD)
0.173
7010S (c1s)
0
7Qi0W(c1s)
0
3002 (cis)
0
Avg. Stream Flow, CA (crs)
0
Rec'ving Stream Gum Branch
WWTP Class I
IWC (%) @ 7Q10S
100
@ 701OW
100
@ 3002
100
@ QA
100
Stream Class WS-IV
Outfall 003
Qw=0.173MGD
Outfall 003 RPA assumes MAX Flow repot
STANDARDS&
PARAMETER
TYPE
CRITERIA 2)
PQL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
Nc was/ V, FA /
Chmnlc Acutn
n #Det N.P dC. Allowable C.
(1)
Acute: N/A
TSS
NC
45
2
mg/L
13 13
615
_
-
PmdCwContinue
monitoring Monthly
Acute: N/A
Turbidity
NC
50
0.05
ntu
12 11
50
Chronic_. _50
RP=n----------------------------
ContinuemonkoingQuarterly. ...:.
Legend. •• Freshwater Discharge
C = Carcinogenic
NC = Noncarcinogenk
A = Aesthetic
31038 Colonial RPA 2011 - Outfall 003, me
2/8/2011

Table 1.
Project Information
Table 2.
Parameters of Concern
Name
Type Chronic Modifier Acute PQL Units
Facility Name
WWTP Grade
NPDES Permit
Outfall
Flow, Ow (MGD)
Receiving Stream
Stream Class
.7010s (cfs)
7Q10w (cfs)
3002 (cfs)
CA (cfs)
Time Period
Data Source(s)
Colonial Pipeline - Charlotte
I
NCO031038
003
0.173
Gum Branch
W S-IV
0.0
0.0
0.0
0.0
Jan2006-Dec2010
BIMS
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par
Par15
TSS NC 45 I 2 mg/L
Turbidity NC 50 0.05 ntu
31038 Colonial RPA 2011 - Outfall 003, input
2/8/2011

REASONABLE POTENTIAL ANALYSIS
TSS
Turbidity
Date Data
BDL-112DL
Results
Date Data
BDL=1/2DL
Results
1
2008
3.2
3.2
Std Dev.
17.8
1 2008
11.
11.0
Std Dev.
4.3
2
2008
2.
2.0
Mean
9.4
2 2008
< 0.05
0.025
Mean
5.1
3
2008
10.
10.0
C.V.
1.9
3 2008
5.3
5.3
C.V.
0.8
4
2008
2.4
2.4
n
13
4 2008
2.3
2.3
n
12
5
2008
67,
67.0
5 2008
5.1
5.1
6
2008
15.
15.0
Mull Factor=
9.18
6 2009
13,
13.0
Mull Factor =
3.9
7
2008
2.2
2.2
Max. Value
67.0 mg/
7 2009
1.7
1.7
Max. Value
13.0 nlu
8
2008
2.
2.0
Max. Fred Cw
615.1 mg/
8 2009
3.
3.0
Max. Fred Cw
50.1 ntu
9
2008
2.
2.0
9 2009
2.
2.0
10
2008
2.
2.0
10 2009
11.
11.0
11
2009
2.6
2.6
11 2010
5.3
5.3
12
2009
6.4
6.4
12 2010
1.9
1.9
13
2009
S.
5.0
13
15 ,
l
15
18
17.
17
18
19,
19 y 8(
21
21
23
,.
23
'
24&
e:
,I
24 .f
ik
25 ^1
25
^.
254 t
26
?
't
27.
28 t
w
7
`I
27
28�'�
1
29
30
.
29
30 "f
{
#
31
a,
31 tir
..,..
r,.;.
F4
t
33
34 L
.,
'
33
34 � ^
'3.,..
35i
36 j ..
Em
'�
35
38
37
381 ".
fig:
i
38
391
40
``1 ..
I
39
40
41
`�
J
41
'
42i
1
42 +
43
44
43 (r(yy
44�{� g
'
45 -
46
y
45
469 '�
47
a
47�yy s
481
50''
48 Sr'" I1
0�'k 5
Bt
"
51
)�
51(,
52
52°
53
v
53 f
54
54.,
55
55,
56
56,.
57
57i
58
58
59
591
60'
60
199
199
200
200:. e
31038 Colonial RPA 2011 - Outtall 003, data
-2- 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Colonial Pipeline - Charlotte
NCO031038
Time Period Jan2006-Dec2010
Ow (MGD)
0.300
7010S (cls)
0
7010W(cfs)
0
30Q2 (cfs)
0
Avg. Stream Flow, QA (cfs)
0
_ RecYing Stream Gum Branch
WWTP Class 1
IWC (%) @ 7010S
100
® 7Ql0W
100
@ 3002
100
Q0 QA
100
Stream Class WS-IV
Outfall 004
Qw = 0.3 MGD
Outfall 004 RPA assumes MAX Flow repo)
STANDARDS&
PARAMETER
TYPE
CRITERIA 2
PQL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NC was/ %FAY/
Chmnlc Acute
n d0s1. Mar Prod Cw Allorvaeb C.
(1)
Acute: NIA
TSS
NC
45
2
mg/L
13 8
29
_ _ _
Chronic: 45
_ -___-._________________
RP=no.
Continue monitoring Monthly
Acute: N/A
Turbidity
NC
50
0.05
ntu
12 11
96
_ _
Chronic-_-50 -
RP=YES_________—______
Add permit IImN- incn;ase monitodng to Monthly
'Legend: " Freshwater Discharge
C = Carcinogenic
NC = Non -carcinogenic
A = Aesthetic
31038 Colonial RPA 2011-Oudall 004, rpa
2/8/2011

Table 1. Project Information
Facility Name
WWTP Grade
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
Time Period
Data Source(s)
Colonial Pipeline - Charlotte
NC0031038
004
0.3
Gum Branch
W S-Iv
0.0
0.0
0.0
. 0.0
Jan2006-Dec2010
BIMS
Table 2. Parameters of Concern
Name Type Chronic Modifier Acute PQL Units
31038 Colonial RPA 2011 - Outfall 004, input
2/8/2011

REASONABLE POTENTIAL ANALYSIS
TSS
Turbidity
Date Data
BDL=112DL
Results
Date Data
BDL-112DL
Results
1 2008
2.8
2.8
Std Dev.
2.5
1 2008
14.
14.0
Std Dev.
6.3
2 2008
8.6
8.6
Mean
3.2
2 2008
< 0.05
0,025
Mean
6.4
3 2008
< 2.
1.0
C.V.
0.8
3 2008
4.8
4.8
C.V.
1.0
4 2008
2.4
2.4
n
13
4 2008
2.
2.0
n
12
5 2008
< 2.
1.0
5 2008
6.4
6.4
6 2008
2.6
2.6
Mull Factor =
3.42
6 2009
21.
21.0
Mull Factor=
4.6
7 2008
5.6
5.6
Max. Value
8.6 mg/
7 2009
0.97
1.0
Max. Value
21.0 ntu
8 2008
< 2.
1.0
Max. Fred Cw
29.4 mg/
8 2009
3.5
3.5
Max. Pred Cw
96.2 ntu
9 2008
< 2.
1.0
9 2009
2.7
2.7
10 2008
6.2
6.2
10 2009
12.
12.0
11 2009
3.2
3.2
11 2010
7.1
7.1
12 2009
< 2.
1.0
12 2010
2.4
2.4
13 2009
14
5.
5.0
131
14
h
151 `.S
16 �.
`'i`
.'
15" xn fi�nn..
16�
1717
18
19k 1 i
' ,
18,
191
5l'
20%
i21
XX
20
22 1ia W
23 'v �e
24 '
',
7
j
22',,
23
24
'a f
25
25
26 _
27
;1
26
27
s
28
29
ti
2830
4
31
31
d32
Ilk
35
36
ir':, .
35
36
37 t
a 9
37 - !
38L¢:
39;
38" t
39
40 t '"4y
41 �n
40
41
�A
42
43
421
43
t.
44
44
45 a
46
d 4,M
+n
451
46
iR
47 „
48 r�i1+:4e
49 r� p
yyg
�,.
47
48
49
�..
50
1
111
50
51 • `
52
j
`"
51
52�
,u ,
53
54
' '"
53
54 k ^ y4
55
56
55
561,
e
57'
58
'a l)
57
58
59
59 9
d
60
60
19".
200
199 '
200"
i
31038 Colonial RPA 2011 - Outfall 004, data
-2- 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Colonial Pipeline - Charlotte
NCO031038
Time Period Jan2006-Dec2010
Qw (MGD)
0.120
7010S (C/s)
0
7Qi0W(Cfs)
0
30Q2 (cis)
0
Avg. Stream Flow, CA (cis)
0
Reeving Stream Gum Branch
WWTP Class I
IWC (%) @ 7010S
100
@ 701OW
100
@ 30Q2
100
@ CA
100
Stream Class WS-IV
Outfall 005
Qw = 0.12 MGD
Outfall 005 RPA assumes MAX Flow repo)
STANDARDS&
PARAMETER
TYPE
CRITERIA 2
POL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
(1)
Nc WOs/ Y,FAV/
Chrnnk Acute
n saat. aa.iaod Cw Alkwabte C.
Acute: N/A
Phonate
NC
300
50
ug/L
29 4
110
1
-
Chronic: 300
RP=no
Continue monbodng Monthly'- T'"�'a
Acute: N/A
TSS
NC
45
2
melt.
13 7
357
-----__---._----------
Chronic: 45 _
RP=YES.
Continue:monhoring.Monthly
Acute: N/A
Turbidity
NC
50
0.05
into
11 it 150
_ -
------_-------_'-------
Note:n<12
Chronic---50
RP=YES.
Limited data set
Add;pennit limit -Increase monitodng to Monthly
Legend: " Freshwater Discharge
C = Carcinogenic
NC = Non -carcinogenic
A =Aesthetic
31038 Colonial RPA 2011 - Outfall 005, rpa
2/8/2011

Table 1. Project Information
Facility Name
WWTP Grade
NPDES Permit
Outfal I
Flow, Qw (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
3002 (cfs)
QA (cfs)
Time Period
Data Source(s)
Colonial Pipeline - Charlotte
I
NCO031038
005
0.120
Gum Branch .
WS-1V
0.0
0.0
0.0
0.0
Jan2006-Dec2010
BIMS
Table 2. Parameters of Concern
Name Type Chronic Modifier Acute PQL Units
Paro1
Par02
Par03
Par05
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Phenols
NC
300
50
ug/L
Par14
TSS
NC
45
2
mg/L
Par15
Turbidity
NC
50
0.05
ntu
31038 Colonial RPA 2011 - Outfall 005, input
2/8/2011

REASONABLE POTENTIAL ANALYSIS
Phenols
TSS
Date Data
BDL-1/2DL
Results
Date Data
BDL-112DL
Results
1
2008
-
66,
66.0
Sid Dev.
12.4949
1
2008
3.3
3.3
Std Dev.
10.5
2
2008
< «s;�.
50
25.0
Mean
29.8621
2
2008
3.
3.0
Mean
5.7
3
2008
<
50
25.0
C.V.
0.4184
3
2008
< 2.
1.0
C.V,
1.8
4
2008
<
-. 50I
25.0
n
29
4
2008
3.4
3.4
n
13
5
2008
53
53.0
5
2008
< 4.2
2.1
6
2008
<
50:
25.0
Mull Factor=
1,6700
6
2008
40.
40.0
Mult Factor=
8.93
7
2008
<
5-01
25.0
Max. Value
66.0 ug/L
7
2008
2.
2.0
Max. Value
40.0
8
2008
<
50
25.0
Max. Pred Cw
110.2 ug/L
8
2008
< 6.6
3.3
Max. Pred Cw
357.2
9
2008
< .,.
504d
25.0
9
- 2008
< 2.
1.0
10
2008
<
50 `-
25.0
10
2008
3.6
3.6
11
2009
<
50
25.0
11
2009
9.4
9.4
12
2009
<'-1
'501
25.0
12
2009
< 2.
1.0
13
2009
<
501,
25.0
13
2009
<
1.0
14
2009
<
50
25.0
14'r
_
-2..
15
2009
< -'.
50:1
25.0
15
16
2009
<
50
25.0
16
17
2009
< r.
50,
25.0
17T
18
2009
<
50­1
25,0
18
'
19
2009
<..
50'
26.0
19
20
2009
<
50
25.0
201
21
2009
61.
61.0
21
x,3
xa•,, W+�
22
2009
< _.
50r,
25.0
22,
1,u•...
23
2010
< '
50`
25.0
23
24
2010
50•
25.0
24"
•�.
25
2010
6V
6L0
251
26
2010
<
50 J
25.0
26
27
2010
< y
50,d
25.0
271
28
2010
< '
50
25.0
28
29
2010
-
< g.,
50 $
25.0
29 t
n.±
30
C-
30
31..
31'
L`
32
z
32
33
33
34
34
35
35
'
36
36'
37
37
38
38
?•
39
-
��
39
40
40
a,`r
41
41
42
42
j.,.
43
43
44
4445
"145
J
46
46
47
47
49
49
50
50
.p
51
l
51
52
52
53
53
54
54
55
55
56
56'
57
57
58
58
59
59
60
60
199
199
200
200
- „$
31038 Colonial RPA 2011 - Outfail 005, data
-2- 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Turbidity
Date Data
BDL=112DL
Results
1
2008
12.
12.0
Std Dev.
7.8
2
2008
4.6
4.6
Mean
7.3
3
2008
1.
1.0
C.V.
1.1
4
2008
8.3
8.3
n
11
5
2009
10,
10.0
6
2009
1.7
1.7
Mult Factor=
5.4
mg/
7
2009
2.8
2.8
Max. Value'
28.0 ntu
mg/
8
2009
6.4
6.4
Max. Prod Cw
149.8 ntu
9
2009
28.
28.0
10
2010
3.2
3.2
11
2010
1.9
1.9
12
13
14
16
17
18
19
20'*%
21
XF
22
f
23
,+
24
m9
251
J
26
I
27
28
29
u%=
301
31)
32.
33-
34,
3536
377
38
39
40''I
r
{I
41
42
43�_
44,
45'-
46
44,
47,'
48
49
n�
`o
51,
52
53
54
55
56
57
58
59
60
199
200
31038 Colonial RPA 2011 - Outfall 005, data
- 3 - 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Colonial Pipeline - Charlotte
NCO031038
Time Period Jan2006-Dec2010
Qw (MGD) 0.900
WWTP Class
7010S (cfs) 0
IWC (%) Q 7Q10S
100
701OW(Cfs) 0
Q 7Q10W
100
30Q2 (cfs) 0
Q 3002
100
Avg. Stream Flow, QA (cfs) 0
® CA
100
RecYing Stream Gum Branch
Stream Class WS-IV
Outfall 006
Qw=0.9MGD
Outfall 006 RPA assumes MAX Flow repo)
STANDARDS&
PARAMETER
TYPE
CRITERIA(2)
POL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
Ncwos/ GFAV/
chronic Acuh
n tlDe1. Nar hatl Cw Allowable Cw
(1)
Acute: N/A
_
Phenols
NC
300
ug/L
29 3
173
---_—
___
Chmnk 300
RP=no-_-_-_-_-_.-----—
no changes to permit
Acute: N/A
'
TSS
NC
45
2
mg/L
13 7
71
-
Chmnk: 45
RP=YES.
Continue .o n FW"gj Mon Iligk: '
Acute: N/A
'
Turbidity
NC
50
0.05
ntu
11 11 112
_ _
Note: n<12
_ _
Chronic: 50 -
RP=YES_-------------_--------
Llmited data set
Add permit! JW-nRMInc'me se:monitodng;to,Monthly
Legend: " Freshwater Discharge
C = Carcinogenic
NC = Non -carcinogenic
A=Aesthetic
31038 Colonial RPA 2011 - Outfall 006, rya
2/8/2011

Table 1. Project Information
Facility Name
WWTP Grade
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
Stream Class .
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
CIA (cfs)
Time Period
Data Source(s)
Colonial Pipeline - Charlotte
I
NC0031038
006
0.900
Gum Branch
W S-IV
0.0
0.0
0.0
0.0
Jan2006-Dec2010
BIMS
Table 2. Parameters of Concern
Name Type Chronic Modifier Acute PQL Units
Par01
Par02
Par03
Par04
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Phenols
NC
300
ug/L
Par141
TSS
NC
45
I 2
mg/L
Par15
Turbidity
NC
50
0.05
I ntu
31038 Colonial RPA 2011 - Outfall 006, input
2/8/2011

REASONABLE POTENTIAL ANALYSIS
Phenols
TSS
Date
Data
BDL-1/2DL
Results
Date
Data
BDL=112DL
Results
1
2008
`80'i
80.0
Std Dev.
16.5905
1
2008
12.
12.0
Std Dev.
7.8
2
2008
<50
25.0
Mean
30.3793
2
2008
11.
11.0
Mean
10.7
3
2008
<
501
25.0
C.V.
0.5461
3
2008
<
11.
5.5
C.V.
0.7
4
2008
<
`,50.
25.0
n
29
4
2008
17,
17.0
n
13
5
2008
<.
50
,25.0
5
2008
<
33.
16.5
6
2008
<
`
50j
25.0
Mull Factor =
1.9200
6
2008
3.4
3.4
Mutt Factor =
3.21
7
2008
<
':50
25.0
Max. Value
90.0 ug/L
7
2008
20.
20.0
Max. Value
22.0 mg/
8
2008
< -.
50
25.0
Max. Fred Cw
172.8 ug/L
8
2008
<
15.
7.5
Max. Fred Cw
70.6 mg/
9
2008
<
50
25.0
9
2008
<
4.4
2.2
10
2008
<
-50
25.0
10
2008
22.
22.0
11
2009
<
50.
25.0
11
2009
20.
20.0
12
2009
<
+So
25.0
12
2009
<
2.2
1.1
13
2009
<''
50
25.0
13
2009
<
2.2
1.1
14
2009
<
50
25.0
14,
_
15
2009
< `
50
25.0
15'
I
16
2009
<.
50
25.0
16:
17
2009
<
'i50.
25.0
17,
18
2009
<
.150
25.0
18
19
2009
<
50,4,
25.0
19
20
2009
<
50,I
25.0
20'
21
2009
<
50
25.0
21 ;
22
2009
<
'50
25.0
22'
23
2010
<
z.50-
25.0
23' -
s
G.
24
2010
61
61.0
24i,
25
2010
-90 i
90.0
25
r,
26
2010
<
501
25.0
261
27
2010
<
561
25.0
27
'
'
28
2010
<'r50
1
25.0
28 n
I
29
2010
<-.
50
25.0
29
30
..�
300'
31
31 �g4r
y
32
32
33
33t
`
,�.
34
34;y
35
35�
36
...I
361,E
37
37'_:
38
='1
38 i
39
39f-j
40
40
41
-...ii
41
42
42'..
43
.i
43!'
44
441,j.,
45
45-
46
46t:°=
47
�
47 -:
2}'
48
48
49
49!','
-
-
50
50
..
I
51
511''
52
52
53
53
54
54
55
55
56
561'...
57
57
58
58,-'
59
59':-
60
60
199
199
200
1
200,
31038 Colonial RPA 2011 - Outfall 006. data
.2. 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Turbidity
Date
Data
BDL=1/2DL
Results
1
2008
20.
20.0
Std Dev.
8.9
2
2008
r.+
12.
12.0
Mean
12.1
3
2008
14.
14.0
C.V.
0.7
4
2008
32.
32.0
n
11
5
�, t 2009
i'
20.
20.0
6
` '2009
5.6
5.6
Mult Factor=
3.5
7'0
2009
'1
4.9
4.9
Max. Value
32.0 ntu
8,2009
4.6
4.6
Max. Fred Cw
112.3 ntu
9
.2009
10.
10.0
10
2010
7.4
7.4
11
2010
2.9
2.9
12
13'
14'
15,
16
17
18
19•
20
21,
22
23'
24
251
26
27'
,2I
281.
29,
30
31
321
33
34
351
36
37
38,
39'
401
411
42
43
44'
451
46
471
48
;
49
50'
51
52
53
54
55'
56
57
58
59
60
199
200
31038 Colonial RPA 2011 - Outfall 006, data
- 3 - 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Colonial Pipeline - Charlotte
I,',,10 BitoW
Time Period Jan2006-Dec2010
Ow (MGD)
0.100
70IOS (CIS)
0
701OW (cis)
0
3002 (c/s)
0
Avg. Stream Flow, CA (CIS)
0
Rec'ving Stream Gum Branch
WWTP Class
IWC (Y) Q 7010S
100
Q 701OW
100
Q 3OQ2
100
Q CA
100
Stream Class WS-IV
Outfall 007
Qw = 0.1 MGD
Outfall 007 RPA assumes MAX Flow repo)
STANDARDS&
PARAMETER
TYPE
CRITERIA 2)
POL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
(1)
NCWOS/ Yr FAV/
Chmnk AcuN
n kW/, Max Pied Lw Albwaah C.
Acute: N/A
TSS
NC
45
2
mglL
12 6 138
Chronk___45 -
RP=YES. -----------------------
Contihuemonfto�ing Monthly.'. '.. m'fi .. _,,, ''{,
Acute: N/A
Turbidity
NC
50
0.06
ntu
11 11 89
-
Note: n412
Chronk---50
_ _ _
RP=YES.-_.___. _____. ___---_--
Limited data set
Hdd;pennitilmlp:,increase monitolinB C61M onnfiy,IWIOV46
Legend: -Freshwater Discharge
C = Carcinogenic
NC = Noncarcloogenlc
A =Aesthetic
31038 Colonial RPA 2011 - Outfall 007, rpa
2/8/2011

Table 1. Project Information
Facility Name
WWTP Grade
NPDES Permit
Outfal I
Flow, Qw (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
30012 (cfs)
CA (cfs)
Time Period
Data Source(s)
Colonial Pipeline - Charlotte
I
NC0031038
007
0.100 -
Gum Branch
W S-Iv
0.0
0.0
0.0
0.0
Jan2006-Dec2010
BIMS
Table 2. Parameters of Concern
Name Type Chronic Modifier Acute PQL Units
Par01 I I I I 1
Par03
Par04
Par05
Par06 .
Par07
Par09
Par10
Par11
Par12
Par13
Parl 41 TSS 1, NC 45 2 mg1L
Par15 Turbidity I NC 50 0.05 ntu
31038 Colonial RPA 2011 - Outfall 007, input
2l8I2011

REASONABLE POTENTIAL ANALYSIS
TSS
Turbidity
Date Data
BDL-1/2DL
Results
Date
Data
BDL-1/2DL
Results
1
2008
9.7
9.7
Std Dev.
9.2
1 2008
24.
24.0
Sid Dev.
8.2
2
2008
21.
21.0
Mean
9.6
2 2008
13.
13.0
Mean
11.5
3
2008
<
20,
10.0
C.V.
1.0
3 2008
8.6
8.6
C.V.
.0.7
4
2008
6.
6.0
n
12
4 2008
10.
10.0
n
11
5
2008
<
2.8
1.4
5 2009
19.
19.0
6
2008
4.4
4.4
Mull Factor =
4.45
6 2009
1.9
1.9
Mult Factor =
3.4
7
2008
17.
17.0
Max. Value
31.0 mg/
7 2009
7.2
7.2
Max. Value
26.0 ntu
8
2008
<
17.
8.5
Max. Fred Cw
138.0 mg/
8 2009
41
4.1
.Max. Pred Cw
89.2 ntu
9
2008
<
3.
1.5
9 2009
26.
26.0
10
2008
2.8
2.8
10 2010
9.
9.0
11
2009
31.
31.0
11 2010
3.4
3.4
12
2009
<
3.8
1.9
12
14
15
i6i
17
17,
19
19
201 �Y
22
�'gGr'
22
1 '1`
23
24
24 is
25
25 24 c
26
26
27
28�*{
27
28
y
d 3l"•
4
29
30
N •
J.
29 {b µ
30
31 ,
31 yL
321
1
32 k sy
331
fir„
t.
33 y++
jlru'�i
34
35t .3•,,
it
34`
353 „F
36R
38 :r.
38 i*
391,,I -
t.;
385 g, i
39
40y
"+
4044 ''4"
't
421,
42
Wi9
4 'Y
k. •.
45
p0.,
45
46 .�
in...,
,
46
47 3,=
`x1r
478 t
ffff �'y
487
49 `
t
48
49
50
50
51
52
51l
52 ]
53 >
5354 I
55
54
57
58.:.
57
59
59
60
199
60
199
31038 Colonial RPA 2011 - Outfall 007, data
2- 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Colonial Pipeline - Charlotte
11Leld11I.3
Time Period Jan2006-Dee2010
Ow (MGD)
0.480
7010S (cis)
0
7010 W (cfs)
0
30Q2 (cfs)
0
Avg. Stream Flow, QA (cfs)
0
Rec'ving Stream Gum Branch
WWTP Class
IWC (%) ® 7010S
100
eQ 701OW
100
Q 3OQ2
100
Q CA
100
Stream Class WS-IV
Outfall 008
Qw = 0.48 MGD
Outfall 008 RPA assumes MAX Flow repo)
STANDARDS&
PARAMETER
TYPE
CRITERIA (2l
POL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
10
Ntwos/ Y.FAV/
Chmnk Acute
n poet. Mar Prod Cw Allowable Cw
Acute: N/A
Phenols
NC
300
50
ug/L
29 1
184
Chronk 300
_ _ _-_._-_-_-_-_-_-_-___-__
RP = no.
no changes to Permit.
Acute: N/A
TSS
NC
45
2
mg/1-
13 7
49
Chronic. —65 -
RP=YES. --.---.-----_—.—.-----
Cootinuemonitonng Monthy
Acute: N/A
Turbidity
NC
50
0.05
ntu
11 11 2,703
----------------------
Note: n<12
1
---SU -
Chronic:
RP=YES.
Limited data set
A, ddjpeonitlimit:olncrease monAodn tto.Monthy
Legend: "Freshwater Discharge
C = Carcinogenic
NC = Non -carcinogenic
A = Aesthetic
31038 Colonial RPA 2011 -Outlet 008, rpa
2/8/2011

Table 1. Project Information
Facility Name
WWTP Grade
NPDES Permit
Outfall
Flow, Ow (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
3002 (cfs)
CIA (cfs)
Time Period
Data Source(s)
Colonial Pipeline - Charlotte
NC0031038
008
0.480
Gum Branch
W S-Iv
0.0
0.0
0.0
0.0
Jan2006-Dec2010
BIMS
Table 2. Parameters of Concern
Name Type Chronic Modifier Acute PQL Units
Par01
Par08
Par10
Par11.
Par12
Par13
Phenols
NC
300
I 50
ug/L
Par14
TSS
NC
45
4
2
mg/L
Par15
Turbidity I
NCI
50
0.05
ntu
31038 Colonial RPA 2011 - Outfall 008, input
2/8/2011

REASONABLE POTENTIAL ANALYSIS
Phenols
TSS
Date Data
BDL=1/2DL
Results
Date
Data
BDL-1/2DL
Results
1 2008
< ,f150i
25.0
Std Dev.
13.9272
1 2008
4.4
4.4
Std Dev.
3.4
2 2008
< N'I ,50
25.0
Mean
27.5862
2 2008
3.
3.0
Mean
3.9
3 2008
<
25.0
C.V.
0.5049
3 2008
< 2.2
1.1
C.V.
0.9
4 2008
'50,
< •;4 i501
25.0
n
29
4 2008
6.
6.0
n
13
5 2008
< . °'±50,
25.0
5 2008
< 2.2
1.1
6 2008
<=!2; j50
25.0
Mutt Factor =
1.8400
6 2008
13.
13.0
Mutt Factor =
3.80
7 2008
< -j 50'
25.0
Max. Value
100.0 ug/L
7 2008
7.
7.0
Max. Value
13.0 mg/
8 2008
< 4{l;,, 501
25.0
Max. Fred Cw
184.0 ug/L
8 2008
< 2.
1.0
Max. Pred Cw
49.4 mgl
9 2008
< 60 •
25.0
9 2008
< 4.4
2.2
10 2008
50
25.0
10 2008
3.
3.0
11 2009
< Lt';: 50
25,0
11 2009
5.6
5.8
12 2009
< pe 50
25.0
12 2009
< 2.
1.0
13 2009
< 50
25.0
13 2009
< 5.8
2.9
14 2009
50
25.0
14
15 2009
< '.'50
25.0
15
16 2009
< �''n7 50'
25.0
16
17 2009
< 50
*507
25.0
17 o-
18 2009
<
i
25.0
18
19 2009
< 14F 50
25.0
19
20 2009
50
25.0
20 > E1 t
21 2009"100j
100.0
•...
21
22 2009
< VZ50 �
25.0
22
23 2010
<k0t 50'
25.0
231 ftf pjg5 IN
.,
24 2010
< 501
'
25.0
24
25 2010
< 9
< u 50
25.0
25.0
25
26 2010
"50
26'd'r
27 2010
<
25.0
271
28 2010
< 50`q
25.0
28 a•1
29 200110
<'.."50
25.0
29I
33� ,�*
c.
33
34 ,1R
' ...
341
35i
3636
;.1:
37 Tn,z
�•
37
38 � x
381
y.
!
43
43
44
-
44
}
40
46�rx
l
45
461
5
47.
i`st
471
1
48
.;
48
49 ' -
49,
'...
50 ;.
50
,
51
51
52
52
53
53
56
56_
+,
57
57 ...
58.
F.-
58
59
59
60'
60. :.
199
200
200
31038 Colonial RPA 2011 - Outfall 008, data
-2- 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Turbidity
'Date Data
BDL=1/2DL
Results
1 2008
24.
24.0
Sid Dev.
65.9
2 2008
18.
18.0
Mean
32.2
3 2008
3.9
3.9
C.V.
2.0
4 2008
10.
10.0
n
11
5 2009
19.
19.0
'
6 2009
16.
16.0
Mult Factor =
11.8
7 2009
2.6
2.6
Max. Value
230.0 ntu
8 2009
7.8
7.8
Max. Fred Cw
2702.5 ntu
9 2009
230.
230.0
10 2010
9.7
9.7
11 2010
13.
13.0
12
_
13;
14
15 'L' 4 ti
Ris
161
17
P°
21 `
22,
231
28
27 ...
28
,' .
29!
30°
Y'yed4''e
31
t
32
331 z `a
34
37,
38
t'
40
421
t
431, 2u;�
451
46
47
48
49
50,'
i'
.'
z�..;�dil
51 t
�. ii2•�I
52 ; ';: r
w
53
54 A:
;tiel
J
55.
56
57 GN
58
59
60
199
200
31038 Colonial RPA 2011 - Outfall 008, data
3 - 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Colonial Pipeline - Charlotte
NCO031038
Time Period Jan2006-Dec2010
Ow (MGD)
0.180
7Q10S(c/s)
0
7Q10W(c/s)
0
3OQ2 (c/s)
0
Avg. Stream Flow, QA (c/s)
0
Rec'ving Stream Gum Branch
WWTP Class I
IWC (%) Q 7010S
100
Q 7Qi0W
100
Q 3002
100
Q QA
100
Stream Class WS-IV
Outfall 009
Qw=0.18MGD
Outfall 009 RPA assumes MAX Flow repo)
STANDARDS&
PARAMETER
TYPE
CRITERIA (2)
POL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NCWQS/ %FAV/
Chronk Acute
n kDef. Mer Red Lw Albsabls Cr
10
Acute: N/A
Phenols
NC
300
50
ugIL
28 2
371
_ _ __ __
Chronic: 300
_ _ _ -----_----_-------_--
RP=YES.
Continue monitoring Monthly
Acute: N/A
TSS
NC
45
2
mg/L
13 5
71
_ _ -
Chronic..
RP -_-----------------------
Conlinue'monhoring Monthly •,$e.
I Acute: N/A
Turbidity
NC
50
DD5
ntu
11 11 1,017
Note: n02
Chronic: 50
RP=YES.
Limited data set
Add peril limit- increase monitoring to Monthly
Legend.. "Freshwater Discharge
C = Carcinogenic
NC = Noncercinogen c
A = Aesthetic
31038 Colonial RPA 2011 - Outfall 009, rpa
2/8/2011

Table 1. Project Information
Facility Name
WWTP Grade
NPDES Permit
Outfal I
Flow, Ow (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
CIA (cfs)
Time Period
Data Source(s)
Colonial Pipeline - Charlotte
I
NC0031038
009
0.180
Gum Branch
WS-IV
0.0
0.0
0.0
0.0
Jan2006-Dec2010
RIMS
Table 2. Parameters of Concern
Name Type Chronic Modifier Acute PQL Units
Par01
Par02
Par03
Par04
'
Par05
Par06
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Phenols
NC
300
E50
EugIL
Par14
TSS
NC
45
Par'151
Turbidity
I NC
50
0.05
1 ntu
31038 Colonial RPA 2011 - Outfall 009, input
2/8/2011

REASONABLE POTENTIAL ANALYSIS
Phenols
TSS
Date Data
BDL=112DL
Results
Date Data
BDL-1/2DL
Results
1
2008
<
50
25.0
Std Dev.
24.0162
1
2008
c
2.
1.0
Sid Dev.
3.6
2
2008
53
53.0
Mean
30.4643
2
2008
2.2
2.2
Mean
3.2
3
2008
<
50
25.0
C.V.
0.7883
3
2008
<
2.
1.0
C.V.
1.1
4
2008
<
50,
25.0
n
28
4
2008
14.
14.0
n
13
5
2008
<
50'.
25.0
5
2008
<
6.2
3.1
6
2008
<
56'
25.0
Mult Factor =
2.4700
6
2008
5.2
5.2
Mult Factor =
5.10
7
2008
<
50
25.0
Max. Value
150.0 ug/L
7
2008
3.8
3.8
Max. Value
14.0 m
8
2008
<
50,
25.0
Max. Pred Cw
370.5 ug/L
8
2008
<
2.
1.0
Max. Pred Cw
71.4 mg/
9
2008
<
50.-
25.0
9
2008
<
2.
1.0
10
2008
<
50,
25.0
10
2008
<
2.
1.0
11
2009
<
50..E
25.0
11
2009
4.2
4.2
12
2009
<
50
25.0
12
2009
<
2.
1.0
13
2009
<
50-
25.0
13
2009
<
5.
2.5
14
2009
<
50 `
25.0
14,1-
-
15
2009
<
50
25.0
1517pP
16
2009
<
50
25.0
18
17
2009
<
60
25.0
17
18
2009
<
50
25.0
18
19
2009
<
506'
25.0
19
20
2009
150 1
150.0
20
21
2009
<
50
25.0
21 �)
22
2009
<
50
25.0
22+
t.
23
2010
< -
56'
25.0
23 '
24
2010
< -
50
25.0
24�"�'
'
25
2010
<
50aj
25.0
25f�g1^+
26
2010
<
50,
25.0
26
27
2010
< c
50-'
25.0
27 e
28
2010
<
50
25.0
28
29
2010
29
30
30
`4
A
31
31
32
32
33
33I� r
34 v"'.
34
35
35y» F
36
37
`t:
36
37
38
38
39
39
40
40
41
41I A
42
-
42y
'
7
44
44�
45
r•,
45 �
46
.t
46 r
1
47
4
48
48
49
49
r
50
50
51
51
52 '"
52r
53
53 }, w
54
54.'"
55
55
56
56
t=.
57
57
58
58
59
59
60
604
199
-
199t�
200 '`
2007+
31038 Colonial RPA 2011 - Outfall 009, data
-2- 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Turbidity
Date Data
BDL=lt2DL
Results
1
2008
35.
35.0
Sul Dev.
45.8
2
2008
55.
55.0
Mean
39.0
3
2008
13.
13.0
C.V.
1.2
4
2008
15.
15.0
n
11
5
2009
30,
30.0
6
2009
40.
40.0
Mull Factor=
6.0
7
2009
2.6
2.6
Max. Value
170.0 ntu
8
2009
17,
17.0
Max. Pred Cw
1016.6 ntu
9
2009
170.
170.0
10
2010
30.
30.0
11
2010
21.
21.0
12
13
14
15,:
16
17
18
19,
20
21
22!'
231 ,. •,
i�. ,
241
25
261
27
28
29
301
31'
32
33
34 , @
r4
,
35 ""
a 4
I
36
37
,
38
39 Grt
40
t1
-t"'
41
421
43
44
45, '•9' .
s f,
46
47
48
49,
50•
51
52
53•
54
55
56
57
58
59
60
199
200
31038 Colonial RPA 2011 - Outfall 009, data
-3 - 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Colonial Pipeline - Charlotte
NCO031038
Time Period Jan2006-Dec201O
Ow (MGD)
0.374
7Q10S (c/s)
0
7Q10W(cls)
0
30Q2 (Cis)
0
Avg. Stream Flow, OA (c/s)
0
Reeving Stream Gum Branch
WWTP Class
IWC (95) Q 7010S
100
@ 701OW
100
gQ 30Q2
100
® CA
100
Stream Class WS-IV
Outfall 010
Qw = 0.374 MGD
Outfall 010 (MYO) RPA assumes MAX Flo
STANDARDS&
PARAMETER
CRITERIA 2)
POL
Units
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
NCwos/ YFAV/
Chmnk Acuk
n tlgeL MU Fq q' AlkwaeN LW
Acute: N/A
Benzene
]NC
1
1
uglL
30 3
55
Chmnic---1—_
_ _
RP=YES—.______—._________.___
Continue monitadng Monthly
Acute: NIA
Toluene
11
1
uglL
30 4
137
_
Chronic: 11
_ _ _
RP=YES. ____._________._______
Continue, monitoring LMonthly
Acute: N/A
Phenols
NC
300
50
ug/L
29 1
Ill
___ __
---------------------------------
Chronic 300
_'_
RP=no.
no changes to permit.
Acute: N/A
TSS
NC
45
2
mg/L
13 11
101
_
_
Chmnic: 45 _
RP c YES.
Continue monitodng'Monthly
Acute: N/A
F:
NC
50
0.05
ntu
11 11 320
Note: n<12
_ _ _
Chronic 50
_ _ _____ _
RP=YES. -
Limited data set
Add7FFyi* liFft7incmase,mon8odng to.Monthy
Legend: " Freshwater Discharge
C = Carcinogenic
NC = Non -carcinogenic
A = Aesthetic
31038 Colonial RPA 2011 - Outfall 010 MVO, rya
2/8/2011

Table 1. Project Information
Facility Name
WWTP Grade
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
Stream Class
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
Time Period
Data Source(s)
Colonial Pipeline - Charlotte
I'
NC0031038
010
0.374
Gum Branch
WSW
0.0
0.0
0.0
0:0
Jan2006-Dec2010
BIMS
Table 2. Parameters of Concern
. - Name Type Chronic Modifier Acute PQL Units
Par01
Par02
Par03
Par04
Par05
Par08
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Benzene
NC
1
1
ug/L
Toluene
NC
11
1
ug/L
Phenols
NC
300
50
ug/L
TSS
NC
45
2
mg/L
Turbidity
NC
50
0.05
ntu
31038 Colonial RPA 2011 - Outfall 010 MYO, input
2/8/2011

REASONABLE POTENTIAL ANALYSIS
Benzene
Toluene
Date Data
BDL-1/2DL
Results
Date Data
BDL=1/2DL
Results
1
2008
< 1.
0.5
Std Dev.
2.0400
1
2008
<
1.
0.5
Std Dev.
4.0286
2
2008
< 1.
0.5
Mean
0.9900
2
2008
<
1.
0.5
Mean
1.4800
3
2008
< 1.
0.5
C.V.
2.0606
3
2008
<
1.
0.5
C.V.
2.7221
4
2008
< 1.
0.5
n
30
4
2008
<
1.
0.5
n
30
5
2008
< 1.
0.5
5
2008
<
1.
0.5
6
2008
< 1.
0.5
Mult Factor =
5.0200
6
2008
<
1.
0.5
Mult Factor =
6.2300
7
2008
< 1.
0.5
Max. Value
11.0 ug/L
7
2008
<
1.
0.5
Max. Value
22.0 ug/L
8
2008
< 1.
0.5
Max. Fred Cw
55.2 ug/L
8
2008
<
1.
0.5
Max. Fred Cw
137.1 ug/L
9
2008
0.5
0.5
9
2008
<
1.
0.5
10
2008
< 1.
0.5
10
2008
<
1.
0.5
11
2009
< 1.
0.5
11
2009
1.2
1.2
12
2009
< 1.
0.5
12
2009
1.2
1.2
13
2009
< 1.
0.5
13
2009
<
1.
0.5
14
2009
< 1.
0.5
14
2009
<
1.
0.5
15
2009
< 1.
0.5
15
2009
<
1.
0.5
16
2009
< 1.
0.5
16
2009
<
1.
0.5
17
2009
< 1.
0.5
17
2009
<
1.
0.5
18
2009
< 1.
0.5
18
2009
<
1.
0.5
19
2009
< 1.
0.5
19
2009
<
1.
0.5
20
2009
< 1.
0.5
20
2009
<
1.
0.5
21
2009
4.7
4.7
21
2009
6.5
6.5
22
2009
11.
11.0
22
2009
22.
22.0
23
2009
< 1.
0.5
23
2009
<
1.
0.5
24
2010
< 1.
0.5
24
2010
<
1.
0.5
25
2010
< 1.
0.5
25
2010
<
2.
1.0
26
2010
< 1.
0.5
26
2010
<
1.
0.5
27
2010
< 0.5
0.5
27
2010
<
1.
0.5
28
2010
< 0.5
0.5
28
2010
<
1.
0.5
29
2010
< 0.5
0.5
29
2010
<
1.
0.5
30
2010
< 0.5
0.5
30
2010
<
1.
0.5
31
^?'H
vuF W1
31
79
33
R.
33
yy��
34
36
36
.'
t
3637
1
e
')
38
38�.
39
L
40
40
42
42
43
kr`
3.' 11
43
:
44
aT >i_
441
45
45
47
47
48-
�,I
48,
49
50
J,
50
51
'..t
511.
"1
52
52;
53
531
54
54
55
-.r,l
55'.
56
56
57
57
58
58
'
59
59
60
60
199
199
200
200
31038 Colonial RPA 2011 - Outfall 010 MVO, data
-2- 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Phenols
TSS
Date Data
BDL=1/2DL
Results
Date Data
BDL=1/2DL
Results
1
2008
< 50
25.0
Sid Dev.
8,9134
1
2008
8.
8.0
Sid Dev.
6.3
2
2008
< 50�
25.0
Mean
26.6552
2
2008
5.
5.0
Mean
6.9
3
2008
73
73.0
C.V.
0.3344
3
2008
12.
12.0
C.V.
0.9
4
2008
< 501
25.0
n
29
4
2008
5.
5.0
n
13
5
2008
< 50
25.0
5
2008
7.4
7.4
6
2008
< 50,
25.0
Mull Factor =
L5200
6
2008
25.
25.0
Mult Factor=
4.03
7
2008
< 50
25.0
Max. Value
73.0 ug/L
7
2008
< 2.
1.0
Max. Value
25.0 mg/
8
2008
< 50,
25.0
Max. Pred Cw
111.0 ug/L
8
2008
2.2
2.2
Max. Prod Cw
100.8 mg
9
2008
< . so
25.0
9
2008
4.4
4.4
10
2008
< 50
25.0
10
2008
4.6
4.6
11
2009
50
25.0
11
2009
9.6
9.6
12
2009
< 50
25.0
12
2009
< 2.
1.0
13
2009
< `50
25.0
13
2009
5.
5.0
14
2009
< 50
25.0
14
"' "
15
2009
< 50.
25.0
15
,1131gj
16
2009
< 50
25.0
-
16
17
2009
< rt 50
25.0
17
18
2009
<' ' 50 j
25.0
18
3
19
2009
< 50
25.0
19�'r
20
2009
<.:` 50
25.0
20
A
21
2009
< 50
25.0
21
22
2009
< �50. 1
25.0
22
.,
a
23
2010
<' - 50
25.0
23
24
2010
< " 50
25.0
24
25
2010
< 50
25.0
25
26
2010
< ^i 150
25.0
26
(;v
27
2010
<'r 50
25.0
27�'71'�
28
2010
< :; 50
25.0
28
29
2010
- 501
25.0
291
_..'
30'7
30
#[
31' '-
}-
31
<a+ rt
32,32
341'
34
'�'(
35
35
p
hfi
37
'I
381
1
38
40rrF
�;n
4 0
"
F
41
1
41 I
u.
444
1Y
44
45
45
46
46
M-.,
48
r.
48
I
49-'
1
49
50
50
51
,�.
511
52
52
53,
53i
54
54'
55
55
56
56'
57
57
,
58.r'
58
"
59
59
60
60
199
199
200
200,
31038 Colonial RPA 2011 - Outfall 010 MYO, data
-3- 2/8/2011

REASONABLE POTENTIAL ANALYSIS
Turbidity
Date
Data
BDL=1/2DL
Results
1
2008
67.
67.0
Std Dev.
18.1
2
2008
15,
15.0
Mean
18.7
3
2008
11.
11.0
C.V.
1.0
4
2008
8.4
8.4
n
11
5
2009
13.
13.0
6
2009
9.7
9.7
Mull Factor =
4.8
7
2009
4.4
4.4
Max. Value
67.0 ntu
8
2009
6.9
6.9
Max. Fred Cw
320.3 ntu
9
2009
20,
20.0
10
2010
36.
36.0
11
2010
14.
14.0
12
13
14
—
15
18'
j
17'
81
9
20
21
22
23
24�'`.'.'
l`
25
26
27
28, 29.
30
31
1
32
9.
33'
„
34
351
36'
37
V
38
39
40,
41
42
43,
44.
45
46
- 3
47
481!
7i
49
50
51
52
53
54
55
56
57
58
59
60
199
200
31038 Colonial RPA 2011 - Outfatl 010 MYO, data
4- 2/8/2011

•Corporon, Joe
From: Culbreath, John W [[e-mail]] L1�`1v t ( FI -r� (XjYV1 �l: ([— V 0
Sent: Friday, March 18, 2011 3:18 PM 1
To: Corporon, Joe � (
Cc: Hughes, Robert; Richards, Jeff W
Subject: Comments for draft NPDES Permit No. NCO031038
Dear Joe,
As a follow up to our phone conversation Wednesday, I would like to submit the following comment
The draft permit increases the Turbidity sampling frequency from quarterly to monthly as well as imposing a Daily
Maximum Limit of 50 NTU. The Limit also refers to Footnote 3 which states the following:
"Turbidity— Effluent shall not cause receiving stream turbidity to exceed 50 NTU. If receiving stream background
exceeds 50 NTU, effluent shall not cause this background value to increase."
Our current permit does not impose a Daily Maximum Limit, but includes this same footnote.
In our experience, turbidity is sometimes used as a surrogate measure for solids (suspended and/or dissolved), since it
can be measured in the field using a properly -calibrated meter, as well as in the laboratory. However, since turbidity is a
measure of light scatter, values can be a measure of naturally -occurring conditions (e.g. healthy phytoplankton
communities, chemical reactions between rainwater and local soils, etc.) rather than conditions caused by a traditional
pollutant. The existing and draft permits contain Daily Maximum Limits for total suspended solids at each outfall. We
believe these limits have and will continue to effectively address and limit potential impacts from onsite operational
activities. Because of both of these considerations, we believe that setting a daily maximum limit for turbidity is not
appropriate.
Therefore, Colonial respectfully requests that the existing permit provisions for turbidity be continued through the next
permit cycle. This would include the removal of the 50 NTU Daily Maximum Discharge Limit, changing the frequency to
quarterly, and maintaining compliance with the Footnote 3 condition. In order to facilitate compliance with Footnote 3,
Colonial proposes to add stream turbidity background samples to be collected upstream of Outfall 009 for the east
channel discharges, and upstream of Outfall 002 for the west channel discharges. If you believe there are more
appropriate upstream/downstream locations, we are also open to discussing those different sampling locations to
provide the Department with quarterly watershed turbidity measures. Doing so would provide the Department with the
assurance that CPC discharges are not causing or contributing to downstream impacts, while providing CPC and the
Department the flexibility to account for and better understand naturally -occurring variability within the watershed over
the next permit cycle.
Please give me a call at 704-399-5259 if you would like to discuss it further.
Thanks
John Culbreath
John W. Culbreath
Environmental Specialist
Colonial Pipeline Company - Southeast District
Office- 704-399-5259

Colonial Pipeline
NCO031038
- Charlotte Delivery Facility
Notes on Chemical Analysis for NPDES Permit Renewal - Joe Corporon 04Feb2011
as reported on IDMRS for the period January 2006 - December 2010
,. ANALYTIVALSUMMARY -RPA. RESULTS
c,=no[tletec[ed method`deteitionlvnit e NT=not tested MYO=manifold
-
vand area
OUTPACE
Outfall 001
pond
monitoring
discontinued
eemene
(—M
(MCAve
Toluene
(ug/L)
E[hylbemeM %Ylene(ug/L) NAPH
(�e/U (Max/Are) THAIENE
—
(Max/AITY
(Ma%/Ave)
TSS:
i.
'(M—AAl
Oil &Greau
(Maa/Ave)
Irnaftl
MIME
(a(/L)
PHENOLS (total
r'ecw.)(ug/L)
TOX
I%Dasx)
Flow-MGO
(Max/Ave)
Outfall 002
Results
<1
<1
<1
<3 NT
22/7.7
36/7.8
<5
<5
<50
100%
0.540/0.240
Sample count
29
29
29
29
12
13
29
29
29
3
80
RIP =YES
RP=YES
Outfall 003
Results
<I
<1
<3
13 NT
13/5.1
67/9A
5.4/5.0
c5
<50
100%
0.173/0.040
Sample count
29
29
29
29
12
13
29
29
29
3
80
RP=no
RP=YES
Outfall 004
Results
<1
<7
<3
<9 NT
21/6.4
8.6/3.7
<5
<5
<SO
100%
0.300/0.070
Sample count
29
29
29
29
12
13
29
29
29
3
80
RP=YES
RP=no
Outfall OOS
Results
<i
<S
<i
<3 NT
2817.3
20/6.0
<5
<5
66/51
100%
0.120/0.030
Sample count
29
29
29
29
11
16
29
29
29
3
77
RP=YES
RP=YES
RP=no
Outfall 006
Results
<1
<1
<1
c3 AT
32/12.1
33/13.3
<5
<5
90/53
100%
0.900/0.390
Sample count
29
29
29
29
11
13
29
29
29
3
79
RIP =YES
RIP =YES
RP=no
Outfall 007
Results
<1
<i
<1
-3 AT
26/11.5
31/11.2
<5
<s
<50
100%
0.120/0.030
Sample count
29
29
29
29
11
13
29
29
29
3
77
RIP =YES
RP=YES
Outfall 008
Results
<1
<1
<1
<3 NT
230/32
13/4.7
6.5/5.0
<5
100152
100%
0480/0.070
Sample count
29
29
29
29
11
13
29
29
29
3
81
'
RP=YES
RP=YES
RP=no
Outfall 009
Results
<S
<i
<1
<3 AT
170/39
14/4.0
<5
No
100/90
j 100%
0.180/0.030
Ample count
29
29
29
29
11
13
29
29
29
3
76
RIP =YES
RP=YES
RIP =YES
Outfall 10 (MYO)
(MVO)
Results
11/1.4
22/1.9
3.111.1
18/3.9 NT
67/19
25/7.1
<5
No
73/51
100%
0.374/0.012
Sample count
30
30
30
30
11
13
29
30
29
3
883
RP=YES
RP=YES
-
RP=YES
RP=YES
RP=no

®gin
ACC ENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue
Governor
MEMORANDUM
Coleen H. Sullins
Director
February 14, 2011
To: Britt Setzer, Division of Environmental Health (DEH)
Mooresville Regional Office
From: Joe R. Corporon, L.G.
DWQ/NPDES
Subject: Review of discharge to waters classified WS-IV
Existing Stormwater Pollution Prevention Plan for
Petroleum Fuel -Hydrocarbon Bulk Storage Terminal
Colonial Pipeline Company, Charlotte Delivery Facility
7425 Kenstead Circle, Charlotte, NC
NCO031038
Mecklenburg County
Please provide your comments.
RESPONSE:
Dee Freeman
Secretary
FEB 21 2011
XI have reviewed the draft permit and determined that the proposed discharge is not located
sufficiently close to any existing or known proposed public water supply intake so as to create an
adverse effect on water quality. The DEH concurs with the issuance of this permit provided the
Permittee properly operates and maintains the facility; the Permittee meets the stated effluent limits
prior to discharge; and the discharge does not contravene the designated water quality standards.
I concur with issuance of the above permit provided the following conditions are met:
I oppose the issuance of the above permit based on reasons stated below, or attached:
Signed: Azt�
cc: rile
1617 Mail Service Center, Ralegh, North Carolina 27699-1617 -
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet .nmalerquality.org
An Equal Opportunity 1 Affrmalive Action Employer
Date: %
NorthCarolina
Naturally,

North Carolina ) ss
Mecklenburg County)
The Charlotte Observer Publishing Co.
Charlotte, NC
Affidavit of Publication
THE CHARLOTTE OBSERVER
DINA SPRINKLE
NCDENR/DWO/POINT SOURCE BRANCH
1617 MAIL SERVICE CENTER
RALEIGH NC 27699
REFERENCE: 30063432
6546120 Intent To Issue NPDE
Before the undersigned, a Notary Public of said
County and State, duly authorized to administer
oaths affirmations, etc., personally appeared,
being duly sworn or affirmed according to law,
doth depose and say that he/she is a
representative of The Charlotte Observer
Publishing Company, a corporation organized and
doing business under the laws of the State of
Delaware, and publishing a newspaper known as The
Charlotte Observer in the city of Charlotte,
County of Mecklenburg,,,and State of North Carolina
and that as such he/she is,familiar with the
books, records, files, and business of said -
.Corporation and by reference to -the files,of said
.publication, the attached advertisement was
inserted. The following is correctly copied from
the books and files of the aforesaid Corporation
and Publication.
PUBLISHED ON: 02/19
i
AD SPACE: 56 LINE i
FILED 0 02/24/11 /
_______ __ ____ ____ _ ________________________�___ ____
NA TITLE•_
C
DATE:EEB
In. Test
imon hereof., ave,,hereunto set my hand and affixed my seal, the
day a ear„ oforesai .._ My.tommission Expires May 17, 201..1.: _-
Note r My Commission Expires: _/_/_

Corporon, Joe
From: Bou-ghazale, Samar
Sent: Friday, February 18, 2011 10:16 AM
To: Corporon, Joe
Subject: RE: DRAFT Permit Review - Colonial Pipeline Charlotte NC0031038
Hi Joe,
No comments from Mooresville to the permit as drafted.
Thanks,
Samar
From: Corporon, Joe
Sent: Monday, February 14, 2011 3:29 PM
To: Bou-ghazale, Samar; Meadows, Susan
Cc: Pugh, James L.; erin.hall(c)mecklenburocountvnc.aov; iohn.mccullouoh@)mecklenburacountvnc.00v
Subject: DRAFT Permit Review - Colonial Pipeline Charlotte NC0031038
Please Review and Comment, as needed. Email response OK.
Joe R. Corporon, L.C.
Environmental Specialist
01 NPDES Program
NCDENR/Division of Water Quality
Surface Water Protection Section
919-807-6394;FAX [phone]
"Passivist! Me? i don't believe in 'passive' anything!" -- Mahatma Gandhi

SOC Priority Project: Yes_ No X
To: Western NPDES Program Unit
Surface Water Protection Section
Attention: Dina Sprinkle
Date: January 27, 2010
NPDES STAFF REPORT AND RECOMMENDATION
County: Mecklenburg
Permit No. NCO031038
PART I - GENERAL INFORMATION
1. Facility and Address: Colonial Pipeline Company
Post Office Box 87
Paw Creek, North Carolina 28130
2. - Date of Investigation: January 27, 2010
3. Report Prepared By: Samar Bou-Ghazale, Env. Engineer I
4. Persons Contacted and Telephone Number: Mr. John Culbreath, Environmental Engineer,
[phone]
5. Directions to Site: From the junction of Highway I-85 and Highway 27 in Charlotte, travel
west on Highway 27 (Freedom Drive) approximately three (3) miles to Old Mt. Holly Road.
Turn right onto Old Mt. Holly Road and travel approximately 0.2 mile to intersection with
Kenstead Circle. Turn right on Kenstead Cirle and travel approximately 200 feet. The
entrance to Colonial Pipeline Company is located on the left side of the road.
6. Discharge Point(s) List for all discharge points:
Latitude: 350 17' 17" Longitude: 800 56' 08"
Attach a U.S.G.S. map extract and indicate treatment facility site and discharge point on
map.
USGS Quad No.: F 15 SW USGS Quad Name: Mountain Island Lake
7. Site size and expansion are consistent with application?
Yes X No_ If No, explain:
8. Topography (relationship to flood plain included): Moderately hilly, with slopes of 3 to 7%.
The site is not located in a flood plain.

9. Location of nearest dwelling: None within 500 feet of the discharge point.
10. Receiving stream or affected surface waters: Unnamed tributary to Gum Branch.
a. Classification: WS-IV
b. River Basin and Subbasin No.: Catawba River Basin; 030834
C. Describe receiving stream features and pertinent downstream uses: Discharge is
taking place into an unnamed tributary to Gum Branch. General C classification uses
downstream.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
Type of wastewater to be permitted:
0% Domestic
100% Industrial
Volume of Wastewater: The wastewater is generated from storm water that falls into
the manifold, area and is collected in a French drainage system. Petroleum
constituents re introduced into the storm water from any free phase petroleum that
enters the underground drainage system as the result of a spill or from slab wash
down water.
The current permitted capacity for groundwater remediation is 0.0648 MGD.
b. What is the current permitted capacity of the wastewater treatment facility? The
current permitted capacity for groundwater remediation is 0.0648 MGD.
C. Actual treatment capacity of the current facility (current design capacity)? N/A.
d. Date(s) and construction activities allowed by previous Authorizations to Construct
issued in the previous two years: N/A
e. Please provide a description of existing or substantially constructed wastewater
treatment facilities: The existing wastewater treatment consists of: An oil water
separator (at the manifold area) that discharges to an unnamed tributary, located
on the north side of the property, that discharges into the main pond located on the
property; A groundwater remediation system consisting of an oil/water separator,
diffused air unit, and activated carbon adsorption unit that discharges to an
unnamed tributary, located on the south side of the property, that discharges into
the main pond. Storm water run-off from the tank area located on the south side
of the property discharges to a smaller pond above the main pond (The smaller

pond discharges to the unnamed tributary located on the south side and
subsequently to the main pond). There are 9 discharge points at the facility that
discharges to the main pond.
f. Please provide a description of proposed wastewater treatment facilities: N/A
g. Possible toxic impacts to surface waters: Due to nature of the wastewater there
could be some toxicity concern.
h. Pretreatment Program (POTWs only): N/A.
2. Residuals handling and utilization/disposal scheme: Sludge that accumulates in the
oil/water separator is pumped and disposed by Hazmat Transportation & Disposal Inc.,
Tel # [phone]. Carbon canisters are handled by Zebra Environmental, Tel # 336-
841-5276. The tank bottom water use to be treated/disposed on site as approved by
Permit No. WQ0004751. According to Mr. Culbreath, the tank bottom is pumped and
removed by Hazmat and the Company may rescind Permit No. WQ0004751.
Treatment plant classification (attach completed rating sheet): Class I
SIC Code(s): 5171
Primary: 39
Main Treatment Unit Code: 53000
PART III - OTHER PERTINENT INFORMATION
Is this facility being constructed with Construction Grant Funds or are any public monies
involved (municipals only)? N/A.
2. Special monitoring or limitations (including toxicity) requests: N/A
Important SOC, JOC or Compliance Schedule dates: (please indicate) N/A.
4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge options
available. N/A
5. Air Quality and/or Groundwater concerns or hazardous material utilized at this facility that
may impact water quality, air quality or groundwater? Contaminated groundwater exists
at the site. Air Quality Permit for this facility is required by Mecklenburg County.

PART IV - EVALUATION AND RECOMMENDATIONS
Colonial Pipeline Company is requesting an NPDES Permit renewal for the discharge of
treated wastewater. The wastewater is generated from a ground water remediation system and
stormwater runoff.
There are 9 discharge points at the facility that discharges to the main pond. Eight (8) of
these discharge points are from petroleum storage tank secondary containment areas and one
from the oil/water separator. Prior to March 2008, Colonial Pipeline Company use to sample the
discharge from the main pond as a representative sample for all discharges. However, since
March 2008 Colonial pipeline started sampling the effluent of every discharge point prior
reaching the pond since the pond was considered to be "water of the State".
Pending review and approval by the Western NPDES Program Unit, It is recommended
that the NPDES permit be renewed with the above condition.
Si nature of Report Preparer
Water Quality Regional Supervisor
Date

770
737
�� ' ` �' • • ' . • (TSCA-1
N 35° 17.067 W 080° 56.142'
712 \ \ (IS CA-2,!
717 \ \ \ \ \I N 35° 17.095 W 080° 56.132'
\j GROUND WATER REMEDIATION SYSTEM
7692 W� 711
GROUND
\` \\ (7) i �l 751 \\\\\\j// 713 / SYSTEM OU ARLL
REMEDIATION
® \\l \
N 35° 16.994 W 080° 55.980' \ \ \\ \ 760�\
\\ \ !LCA76 WEST CHANNEL
\ 761 \\ \ N 35° 17.095 W 080° 56.066' \\ \
7831
\770\ \\732
\ \ \
(TSCA�B] I I I I� 730 \ \ \\\ \ 733 \\\�\ \ \ / I •\
IN 35° 17.153 W 080° 56.031'
739 \�\\\ 734
EAST CHANNEL
i \ MANIFOLD YARD
TS` c.A-5- AREA
N 35017.088 W O80° 55.964'
LEGEND
PROPERTY LINE
FENCES
POND AND STREAM
DIKE WALLS AND
UNIMPROVED ROADS
IMPROVED ROADS
DRAIN VALVES
ABOVE GROUND BREAKOUT TANK
DISTILLATE PRODUCT
ABOVE GROUND BREAKOUT TANK
GASOLINE PRODUCT
POINT SOURCE DISCHARGE
\\ ('4) 730
LTSCA-3a
\ \ \ \ ;N 35° 17.268 W 0800 56.099'
o \ \ \ / //� �'•� / POND
MANIFOLD YARD
AREA OUTFALL—
(`MY_O)
N 350 17.176 W 0800 55.968'
TANK SECONDARY CONTAINMENT AREA (TSCA) REFERENCE NUMBER
(TSCA4
N 35-17.227 W 080° 56.017'
OUTFALL 001
I
0 200
SCALE IN FEET

TerraServer Image Courtesy of the USGS
Page I oF2,
Send To Printer Back To TerraServer Change to 8.5x11 Print Size Show Grid Lines Change to Landscape
0' .5Km 0' '.25Mi
Image courtesy of the U.S. Geological Survey
http://terraserver.microsoft.comlprintimage. aspx?T=2&S=12&X=632&Y=4880&Z=17&P=Charlotte%2c+North+Carolina%2... 12/10/2004

John W. Culbreath
Environmental Specialist
Southeast District
December 28, 2009
Mrs. Dina Sprinkle
NCDENR / DWQ / Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: NPDES Permit No. NCO031038 — Renewal Submittal
Colonial Pipeline Company
Mecklenburg County
Dear Mrs. Sprinkle:
Colonial Pipeline Company
Office — 704-399-5259
Fax — 704.399 9029
Colonial Pipeline Company requests renewal of the above referenced permit which will expire on June
30, 2010. There have been no changes since the issuance of the previous permit. Below is a list of the
enclosed renewal package:
1. Cover letter requesting permit renewal and documentation of any changes since issuance of
the last permit (signed original and two copies)
2. The completed application form signed by the permittee (signed original and two copies)
3. A narrative description of the sludge management plan for the facility (signed original and
two copies)
4. Facility maps
If you have any questions or need any additional information I can be reached at 704-399-5259.
Very truly y9prs,._,
John W. Culbreath
Environmental Specialist
Enclosures
7524 Kenstead Circle Paw Creek, NC 28130
P.O. Box 87 Paw Creek, NC 28130

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number INCO03
Please print or type.
1. Contact Information: n
Owner Name CQLOA///9 P1/6_eIA/F CO,
Facility Name CuLONIAt_ f jACLrtJt CO, - 04ocorre Dc[id&7RY rchitr-Y
Mailing Address P. ci , ( o x .3 7
City -PA w CPF_E
State / Zip Code q / C 2 9 / 3 0
Telephone Number %dui _ 312- - F (a 1 © �I(C(4'et &Aul�
Fax Number 7 6 `{ - 3 7 9- / p 2 9
e-mail Address
- -1cu ( rea e ca(piDe .corn
2. Location of facility producing discharge:
Check here if same as above 12-1
Street Address or State Road 76~o2 + KCN 5*FCA,6 Clk CC E
-----city --- if IJ �--
State / Zip Code r/ C 2 1 L(
County N� E L k, LE -A( A Cr
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name _54AIr kS tvo✓c
Mailing Address
City
State / Zip Code
Telephone Number DEC 2 9 2009
Fax Number
UALITY
a. Ownership Status: POINT SOURCE BRANCH
Federal ❑ State ❑ Private ® Public ❑
Page 1 of 5 - c-MI 10108

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
5. Standard Industrial Classification (SIC) code(s): 11613
6. Number of employees: 13
7. Describe the treatment system List all installed waste treatment components with capacities,
describe the processes that generate wastewaters. If the space provided is not sufficient attach a
separate sheet of paper with the system description. rye -CI f T >' i1 A 5 % S 7`0 R' hl WAr- 2
Corr-At(-5, Nfc-pir- dr rmc ovr lVe-c..-S DIScflAiL(rt Fi2coll. FETAdLEoJA 57W A-Gc
-FA N(< Scccm N+4Y Co/J -A)A/M cN>- Ae-dA5er5Cp), 4:-Ach T-SC-t Coni7rhlAiL
&fi-61tJ,6 CO:ICR, %Ilr oIHC-OUT-FA I-r_(MYo) OIscfirllLC;CS (-'A6An
3606 C-A( +-cry 0/i/WA'rcL-4elfi�Flr6P 7/'/Ar Co CC(�C7 sToRc�lWArir\
F ,l_oM -r fC PIPG-LINC
8. Is facility covered under federal effluent limitation guidelines? No ® Yes ❑
If yes, specify the category?
9. Principal product(s) produced:
Principal raw material(s) consumed:
Briefly describe the manufacturing process(es):
THr �iTY Sc�vc s hs QRtAkGvl /�1K
A f/4C(Li�Y
-r �V_i_t.�s-TA F—A-c`IAI-� PE �0LEu'� P�0.�UcTs Pl t
pt- Ct^ I Vt: D 1Rv7-o %/� N`kd'1 L E rA6 k' l -6
PIPE! iNC--s, P(�MPc-.6 djT To «CAS Fci2oi �vM
S�f i PPe� i ViA
,
L0 cr� L P1PEL1nJFS
Page 2 of 5 C-MI 10108

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
10. Amount of principal product produced or raw material consumed
[List specific amounts consumed and/or units of Production over the last three years/
Product Produced or Raw Material
Consumed
AVERAGE
Product Produced or Raw Material
Consumed
PEAK
per Day
—
per Month
r
per Year
i
e
11. Frequency of discharge: Continuous
If intermittent: (Fa k M YC)
Days per week discharge occurs: aAit=
Intermittent IR
01a 'rSc/1's
Duration: 2 //c✓tif.
12. Types of wastewater discharged to surface waters only
Discharge
Flow
GALLONS PER DAY
Sanitary - monthly average
Utility water, etc. - monthly average
IVIA
Process water- monthly average
N/A
Stormwater - monthly aage
X er(j6rjo0 C-AL.
so 002
G o
AV(,.
Other - monthly average
Explain: �S., OCG z'H L
=TANK-NYWGSrAric-Tt,r-alnrFR----/,i
-3 C�CJ
GtC�
----
A V�
--- --- ------
Monthly Average
total discharge (all types) /'730 oae GAt,
J�c� 3 0 0
��
t
13. Number of separate discharge points: / OutfallIdentification numbers) OCR 2 003
C�)V4 cc�. OOE/ Ca?, 60? G09i olo&Yo�
14. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude): uNNAE,� %f JBLf %i } /
i i(n GUM U11A C'i>"
Page 3 of 5 C-MI 10/08

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
15. Effluent Data [for new or proposed discharges]
Provide data for the parameters listed. Temperature and pH shall be grab samples, for all otherparameters 24-hour
composite sampling shall be used. If more than one analysis is reported, report daily maximum and monthly average.
If only one analysis is reported, report as daily maximum.
NOTE: Permittees requesting renewal should complete the table ONLYfor the parameters
__currently. monitored. -Summarize the.past 3.years of effluent_data .____
Parameter
Daily
Maximum
Monthly
Average
Units of
Measurement
Biochemical Oxygen Demand (SODS)
Chemical Oxygen Demand (COD)
Total Organic Carbon
Total Suspended Solids
67
j
r1G L
Ammonia as N
Temperature (Summer)
Temperature (Winter)
pH
Fecal Coliform (If sanitary waste is
present)
Total Residual Chlorine (if chlorine is
used)
16. List all permits, construction approvals and/or applications (check all that apply and provide permit
numbers or check none if not applicable):
— --Type ------ - ---
—Permit-Number—Type----
----`--PermiYNumber-----
Hazardous Waste (RCRA)
NCnpdp�Z 3074
NESHAPS (CAA)
/V/61
UIC (SDWA)
NIA
Ocean Dumping (MPRSA)
/li//+
NPDES
tVCGS /O L67
Dredge or fill (Section 404 or CWA) NVIA
PSD (CAA)
N/A
Other UN -DISC I-t1t$Gt
VJQ_oco if7S l
Non -attainment program (CAA) N/A . A fk - i1L"ck, c'�UN Y (q .. /gi( _ 6 2 7
17. List any chemicals that may be discharged (Please list and explain source and potential
amounts.)
Page 4 of 5 C-MI 10/08

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
18. Is this facility located on Indian country? (check one)
Yes ❑ No 9
-- -19.. Applicant Certification---- ---
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
00V dPE rronfs fIAKA6E4
Printed name of Person Signing Title
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan, or other document files or
required to be maintained under Article 21 or regulations of the Environmental Management Commission
implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or
monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable
by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both,
for a similar offense.)
Page 5 of 5 C-MI 10108

CPColonial Pipeline Company
SLUDGE MANAGEMENT PLAN — CHARLOTTE DELIVERY FACILITY
Colonial's .treatment -works .for-stormwater -runoff at the -Charlotte-Delivery-Facility-consists-of
one oil / water separator (Manifold Yard Outfall-MYO) and a retention pond which acts as a
sedimentation basin and an emergency oil / water separator for the Tank Secondary Containment
Areas (TSACs) and the MYO.
The oil / water separator has been designed to capture any refined petroleum products that
may be present in the wastewater flowing through the separator. All refined petroleum products that
accumulate in the oil / water separator are returned to Colonial's pipeline system. The oil / water
separator is equipped with high level alarms for both product and water. These alarms are tested
annually to ensure proper operation.
Sludge accumulates on the oil / water separator floor, and the sludge accumulation rate is such
that it needs to be removed approximately once every two years. Since influent to the oil / water
separator is minimal during dry weather, cleaning can be scheduled so that flow bypassing is
unnecessary. After the oil / water separator is cleaned, the sludge is transported to a licensed waste
disposal facility by a permitted waste transporter. An appropriate transporter and disposal facility are
selected just prior to cleaning.
Although sediment accumulates at the bottom of the facility retention pond, it accumulates at a
rate such that the pond seldom needs to be dredged. If the retention pond is dredged in the future,
Colonial will contact the North Carolina Department of Environment and Natural Resources concerning
disposal of the dredged material.
John W. Culbreath
Environmental Specialist
JU
Michael A. Martin
Operations Manager
Date 1Z-17-0
Date
CADocuments and Settings\jculbreaWy Documents\Charlotte\NPDES\2009 Renewal\Sludge Management Plan 2009.doc