NC0031038_Regional Office Historical File Pre 2018 (4)

N.C.GINSFERIING-SCIENCE, INC.
DEPT
u 'fa ,.1Ht. 4 Ck..� w�a n :3 aac` ',. t. `
,., .. ,.,, i .�'. g,ppY yr +yy
t NATURAL RESO t HEA1/4
URCES
May 20, 1994 u I C 1994
N!V RtRN OF ENVIRONMENtAt NAMUrNENT
RRRtRV,"ttE:RFRJRNA OFFICE
Division of Environmental Management
NPDES Permits Group
.east office Box 2935
Raleigh, North Carolina 2762 i-0 3
Subject: National Pollutant Discharge Elimination System
Notice of Intent Application
Dear Sir orMadam:
Engineering -Science, Inc. respectfully requests your review of ; the enclosed
NPDES permit application for coverage under General Permit NCG510000. This
application is being submitted can behalf of Colonial Pipeline Company for their
Charlotte Delivery Facility.
This project is being performed in support of Corrective five Action Measures for
r mediation of petroleum releases at the site.
Enclosed e the fallowing documents in support of the permit application: three
copies of the application farm; three pies of design drawings; and the application
processing fee of $400.
If you have any questions concerning the application and supporting documentation,
please contact me at (919) 77-
Sincerely,
ENGINEERING -SCIENCE, INC.
Steven S. Trimberger
Project Engineer
Enclosure
c: Jeff Richards, Colonial Pipeline Company
Don Boyle, Engineering -Science, Inc.
File
ik OA100 1A\NPD W May t i :52PM

°
State of North Carolina
Department of Env ronment$ Health and Natural Resources
Division of f ' ai Management
512 North Salisbury t . Raleigh, North Carolina 27611
Jarnes 0. Martin, Governor or . Preston Howard, Jr.,,P.E.
William W. Cobey, Jr., Acting lair
ector
NQII-CE OF IN NT
National Pollutant leis hr Eli "nation System
Application for Coverage under General Permit NC Cl51 ; Groundwater re edict on pry` s
designed to treat petroleum contaminated groundwater.
1. Name, .Address , location, and telephone number of facility requesting Pe °t.
A. Official Name: Colonial Pileline ComDanv,
B. Mailing Address: Resur ens Plaza
(1)Street Address, 45 East Paces JL
e
(2)City; Atlant
(3)State; ga a
(4)Zip; 303 6-11 5
(5)County; Fulton
C. Location.(Attach map delineating general. facility location)
(1)Street Address; 7524 Ken tend Circle
(2)City; Paw Creek-
(3)State, Nor h Carolina
WCounty, Mecklenburjz
D. TelephoneNumber; ZO4 ) 2 - 8610
2. Facility ;Contact:
A. Name; Jeff Richards
B Title; Staff Ges to ist
C. yName, Colonial Pi el,ine care a
D. Phone Number; LO4 } 841 .. 2431
I Application type (check appropriate selection):
A. New or Proposed;
B Existing; if previously permitted, provide pennit number
C. Modification,
(Describe the nature of the'modificationY
4. Description of discharge
A. Please state the number of separate discharge points.
1,W; 2, ; ,[ l; 4 l; [ 1.
Page 1

NOTE: Construction of any wastewater treatment facilities require subrrdssio of three () sets of plans
and specifications along with their application. Design of treatment facilities must comply
with requirement 15A NCAC 2H .0133. If construction applies to the discharge, include the
three sets of plans and specifications with the application.
5. What is the nature of the business applying for this pe "t.
Pipeline Delivery Facility
t. Name of receiving water or waters; unmed and on fa. Classification: A
(Attach a USGS topographical map with all discharge point(s) clearlymarked)
7. Is the discharge directly to the receiving water(Y,) Y
If no, state specifically the discharge paint. Mark clearly the pathway to the potential receiving
waters can the site map. (This includes tracing the pathway of the storm sewer to its discharge
paint, if a storm sewer is the only viable means of discharge.)
. Please address passible non -discharge alternatives for the following options:
A.'Connection to a Regional :ewer Collection System; Mecklenburg county is not ,currently
accepting connection applications for remediation;systems.
B. Subsurface Disposal; Site geology (underlain by fractured bedrock) makes
subsurface disposal unfeasible.
C. Spray Irrigation; Site topography (steep) limits -size ;of spray irrigation.
current system on site is already at operational limits.
. 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.
PrinW NarneofPawn Sigr,la c
Title " � : r a a0
Date A ot
Sigmture of Applicant'
Any person who knowingly makes any false statement, representation, or certification in any
application, record, report, plan or other document filed or required to be maintained under Axticle 21 or
regulations of the Environmental Management Conunission implementing that Article, or who falsifies,
tampers with or knowingly -renders inaccurate any recording or monitoring device or method required to
e 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 $10,000, or by imprisorunent not to exceed sixmonths, or by both. (18 U.S.C. Section 1001 provides
punishment by a fine of not more than $10 or imprisonment not more than 5 years, or both, for a
similar offense.)
Notice of Intent must be accompanied by a cheek or money order for $40 .00 made payable to the North
Carolina Department of Environment, Health; and Natural Resources. Mail three () copies of entire
package to:
Division of Environmental Management
ICES Permits Group
Post Office Box 29535
Raleigh, North Carolina 762 3
Page

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEME
NT
TO DISCHARGE PETROLEUM CONTAMINATED GROUNDWATER I AND SIMILI
AR
WASTEWATERS UNDER THE
In compliance with the provision of North Carolina General Statutet'
143the-North
other lawful standards d regulations promulgated and adopted
CarolinaEnvironmental Management Commission, issued e Federal aa Wastar
Pollution Control Act, amended, this permit is hereby
operators, hereafter per ' ittees, which are covered by e sMe a age videnced b
receipt of a Certificate of Coverage the Environmental
nt
Co fission to allow the discharge of treated wastewaterCher n accordance
ions set forth. e
effluent limitations, monitoring requirements, and o
Parts T, IT, TTI and TV hereof.
This permit shall become effective August 1, 1992
This permit shall expire at midnight on July 31, 1997
A. Preston Howard, Jr., P.E., .Acting Director
Division of Environmental Management
By Authority of the Environmental Management Commission

A. Effluent itLimttao� +d Mo `tor ring Requirements '� T)E� �'e .t � C�51Ci�C U
During the period beginning on the effective date of the ;permit and lasting until expiration, the Permittee is authorized to
discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored: by the Permittee as specified
below.
inn
Flow Weekly Pump or Meter Log Effluent
Toluene 11 pgll 22 Monthly grab Effluent
Benzene 71.4 142.8 pgll Monthly Grab Effluent
Methyl Teri Butyl Ether Monthly Grab Effluent
*Dead 25 ggtl 50 p Monthly ' Grab Effluent
There shall be no discharge of floating solids or visible foam in other than trace amounts.
The monitoring requirements and discharge limitations shall only apply if leaded petroleum products are the source of the
groundwater contamination.
Minimum treatment will include an oillater separator, air stripping or diffused aeration and activated carbon adsorption.
Design and Construction of"the Waste Treatment Facility will emphasize the use of plastic pipes and fittings where
practically passible`
Grotandwot r Rome 6tion

PART I
P! � �, 1 i,i I I � 11111112LIANCE
611. 1 1 i is I
� 1! 101,71
The permittee shall comply with Final Effluent Limitations specified for
discharges in accordance with the following schedule:
Permittee shall comply with Final Effluent Limitations by the effective date of the
permit unless specified below.
2. Permittee shall at all times provide the operation andmaintenance necessary to
operate the existing facilities at optimum efficiency.
3. No later than 14 calendar days following a date identified in the above schedule of
all submit either a report of progress or, in the case Of
+'ka J'A'.Mittee sh
I noncompliance. in X'11t: JCX%,f.'W- ---I ---- - the probability of meetinj
)ncompliance, any remedial actions taken, and
�xt schedule requirements.
page 1 of 18

PARTH
nANDARD CONDITIONS ES PERMnS
10
. Permit Issuing Authority
e Director of the Division of Environmental Management.,
2. DEM or Division
Means the Division of Environmental Manage nt, Department of Environment,
Health and Natural Resources.
3. EMC
Used herein sans the North Carolina Environmental Management
Commission.
4. Permitteeby
Used herein sans the entity who obtains coverage under this general permit
subsequent issuance of a "Certificate of Coverage" by the ' Division of
Environmental Management.
. Act or "the A4t7
e Federal Water Pollution Control Act, also .no as the Clean Water Act, as
amended, 33 USC 151, et. serf.
6. Mass/Day Measurements
a. The "' onthly ;average discharge" is defined as the
total mass of on whichall
dal
aily
discharges sampled and/or measured during a cal
discharges are sampled and measured, divided by
the is therefoe,ranof 'aritb can
daily discharges
sampled dlor measured during such ,o
nth. It found by adding the weights of the pollutant
the tetsdeach day of the were reported. the la' �tatin is
h and then
dividing this sumby the number of
identified. as "Monthly Average" in Part I of the permit.
b. The "weekly average discharge" is defined ath the
total
ar week (Sundaylldaily
discharges sampled and/or measured during
nn
Saturday) on which daily discharges are sampled measured during such ,di ed b tthe
�srr,l t r of daily discharges sampled and/or .1 fmind each
kGA&4ayxs --w —
4111 It
5charge>" This limitation is identified as aiy
r it.
Page 2 of 1

t Ii
average concentration" (for dissolved oxygen) is theminimum
The e "daily en required to be available in the effluent pp ole s
allowable amount o dissolved oxygen f only one dissolved oxygen
to discharge averaged over calendarsampay. y " is �e text of
ken over s calendar day, tlae sample is considered to be the "daily average
taken
for the discharge. It is identified as "daily average"
Part I.
e ua r average concentration' is the a° oll samples i Caton in ken the t t of
over a
f. +
calendar quarter. it is identified as "Quarterly age
Fart I of the permit.
A calendar quarter is defined as one of the foflweinmb erp and October through
inct periods: January
g through March, April through June, July through
December.
other Measurements
D): flow limit ex
Pressed
monthly. pressed in this permit is ethe the total dailhours gy flows
a. Flo t is determined as the arithmetic
mean
recorded during the calendar month.
"instantaneous flow' measurement" is a measure o o t five of the total
ken at the time Of
b° Anx�ta le and flow will be rere
sampling, when both the sample
discharge.
"continuous flog measurerr�ent" is a measure o discharge operating ng hours of the
which occurs continually without rote ption throughout pwh
facility. Flow shall be monitored, continually ecepe act iesnonfor the ethe flow device. en
there may be no flow o for infrequent aintenan
gx Types of Samples
a, Composite Sample: A composite sample shall consist of-
_ ...� —lav, &.,norted t ectu l time intervals over a hour period of
_ _ _.3 _a *U& +;mom of
«
Page 4 of 18

Fart if
samples shall be no greater than once per hour except
hours. wastewI suchaters+treatfluent
ment
systems` having a detention time of greater
than 24 grab samples may be collected at time intervalsevenly spaced over the 24 hour
:period which are equal in number of hour�tothe he iimerinterval between filuent gratietention time of the system n
number of days. However, in no may
samples be greater than six (6) hours nor the number` of samples less than four ()
during a 24 hour sampling period.
b. Crab Sample. grab samples are individual samples collected
wally. period o time`
not exceeding 15 minutes; the grab sample can be to
ken 10� calculation of Means
a Arithmetic Mean: The'arithmetic mean of any set of values
is .he summation of
the individual values divided by the number of individual
b. Geometric Mean: The geometric mean of any set of values the number the Nth
root individual
of the
product of the individual values where N is equal
arithmetic mean of
values. a geo etric me is equivalent Dees of tantilog of lc lot ng the geometric
the logarithms o the individual values. purposes
can, values of zero (0) shall be considered to be one (I).
. Weighted by Flow Value. Weighted by flow value means summation of the re f each
concentration times its respective flow divided y the
ve
flows.
11. Calendar Day
A. calendar day is defined as the period from midnight of one day una til hour period
idnight of
the next day. However, for purposes of this perm any y con
that reasonably represents the calendar day may be used for sampling.
11. Hazardous Substance
A, hazardous substance means any substance designated under 40 CFI% Part 11
pursuant to Section 311 of the Clean Water Act.
13. Toxic Pollutant
A. toxic pollutant is any pollutant listed as tonic under Section 307(a)(1) of the Clean
Water Act.
SONDLMM
1. Duty to Comply
The pemitteust comply l with all conditions of this permit. Any permit
noncompliance constitutes a violation of the Clean Water
Act an ds round for or
enforcement action, for permit termination,
modification; or denial of a permit renewal application.
Page 5 of 18

Il
�,. uent standards •or prohibitions established
The issuance of finis c 111- v—..,
personalproperty, or any exclusive privileges, nor does it authorize any injury
private property or any invasion of personal rights, nor any infringement o
Federal, Mate or local laws or regulations.
Page 6 of 18

Part 11
6. Onshore or Offshore Construction
rove e construction of y onshore or
This permit does not authorize or app work in any
offshore physical structuresor facilities or the undertaking of y
navigable waters.
7. Severability
e provisions of this permit are severable.,
d if any provision of this permit, or
the application of any provision of this permit to any circumstances, is held
invalid, the application of such provision to other circumstances, and the
'remainder of this permit, shall not be affected thereby.
S. Duty to Provide Information
e permittee shall furnish to the Permit Issuing Authority,
"thin a reasonable
time, any information which the Permit Issuing Authority a request to
king and reissuing, or
deter ine' whether cause mists determinfor e compliance h this permit. he
terminating this permit or to non request, copies of
perrmttee shall also furnish t the Permit issuingAuthority p
records required to be kept by this permit.
9. Duty to Reapply
If the permittee wishes to continue an activity regulated bydtohis pn a new peermit r tits
expiration' date f this permit, the pe ttee must apply
for jo. Permit Termination
After public notice ,and opportunity ortunit for a hearing, the general permit and
Certificates of Coverage issued under this general permit may be terminated for
cause.
11.When an Individual Permit may be Required
The Division ay require any owner authorized to discharge under this permit to
apply for and obtain an individual permit. Cases where an individual permit may
e required include, but are not limited to, the following:
a) The discharger is a significant contributor of pollution.
ibl Conditions at the operating facility change altering the loonstitnger ants anfor
characteristics' of the discharge such that the discharge h
General Permit.
(c)The discharge violates the terms or conditions of this permit.
(d) A change has occurred in the availability of demonstratedto the ite h oleo or practices
for the control or abatement of pollutants applicable
(e) Effluent limitation guidelines are promulgated for the point sources covered by this
permit.'
Page 7 of 18

Part Ii
(f) A waist' quality
management plan containing requirements applicable to such
point sources is approvedafter the issuance of this permit.
This permit mabe terminated as to ani ducal owner with r any 143.E lof the asons set
forth above r appropriate notice to at
12.
When an Individual Permit may be Requested
pe ittee operating under this permit may request to e excluded ' fro the
y for an individual permit. When individual
coverage of this Permit by applyingapplicabilityf this general permit is
permit is issued. to n owner the
automatically terminated on the effective
li dtoe n of townerhe d ivialready oovered by n
General Permit is issued which app
individual permit, such pe tcoverage que t lusion in ivfrom permit. the psigns of the
General Permit and subsequent
13. Signatory Requirements
All applications, reports, or information submitted to the Permit Issuing Authority
shall be signed certified:
a. All permit applications shall be signed as follows:
(l) For a corporation: by a responsible corporate officer.
Fs e purpose
oft is Sor ection,
a responsible corporate officer ears. (a) a president,
president of the corporation in charf principal
makangu functions for nction, or any the
person who performs similar policy
corporation, or (b) the manager of one or ore manufacturinggross
production
sales
operating facilities employing ore than 250 persons or having
or expenditures' exceeding 25,million (in second quarter t the r0 dollars), if authority
thori �
to sign documents has been assigned or delegated
with corporate procedures.
:oprietorship by general partner or the :proprietor,
(2) For a partnership or sole pr
respectively; o
lity, Mate, Federal, or other public agency: by either a principal
(3) For a municipa
executive officer or ranking elected official.
b. All reports req `red by the permit and other information requested by the P it
g
Issuin Authority shall b signed by; a person described above o authorized by a
authorized representative of that person.. A pars
on representative' only if:°.
(l) The authorization is made in writing by a person described above;
an individual
(2) The authorization specified either r.amtjt,ed facility or activity. such as
responsiumu,Y 1 --
the position of plant manager, operator of a well or well tieta,over
esponsibility, or an individual or position having
responsibility for environmental matters for the company. (A duly authorized
:page 8 of 18

part II representative may thus be either a named individual or any individual occupying
anamed position.); and
(3) The written authorization is submitted to the Permit issuing Authority*
c. Certification. Any person signing a document under paragraphs a. or b. of this
section shall make the following certification:
"I certify, under penalty of law, that this document and all attachments were
prepared under my direction or supervision in accordance with a system designed
to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system,
or those persons directly responsible for gathering the information, the
information submitted is, to the best of my knowledge and belief, true, accurate,
and complete. I am aware that there are significant penalties for submitting false
information, including the Possibility of fines and imprisonment for knowing
violations."
14. Permit Actions
This Permit may be modified, revoked and reissued, or terminated for cause. The
filing of a request by the permittee for a permit modification, revocation and
reissuance, or termination, or a notification of planned changes or anticipated
noncompliance does not stay any permit condition.
�5. Permit Modification, Revocation and Reissuance, or Termination
The issuance of this permit does not prohibit the permit issuing authority from
reopening and modifying the permit, revoking and reissuing the permit, or
terminating the permit as allowed by the laws, rules, and regulations contained in
Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North
Carolina Administrative Code, Sulichapter 2H .0100; and North Carolina General
Statute 143-2153 at. al.
Certified operator of North Carolina General Statutes, the perTnittee shall
Pursuant to Chapter 9OA-44 nt plant operator in responsible charge
employ a certified wastewater treatine
(ORC) of the wastewater treatment facilities. Such operator must hold a
eater than the classification assigned to
certification of the grade equivalent to or gr tee shall notify the Division's
the wastewater treatment facilities. The permit any change in the
Operator Training and Certification Unit within thirty days of
ORC status.
2. Proper Operation and Maintenance
The permittee shall at all times properly operate and maintain all facilities and
stems of treatment and control (and related appurtenances) which are installed
sy hieve compliance with the conditions of this permit.
or used by the permittee to ac
Page 9 of 18

Pro r operation and maintenance also includes adequateeaat
ory controls and
appropriate qsstems the operation of
p quality assurance procedures. o
This proves requires
r
similar
insta
ed by
back-up or auxiliary facilities or to achieve car pliancellwith the
permittee only when the operation is necessary
conditions of the permit.
Feed to Halt or Reduce not a Defense
t shall not be a defense for a permittee in an enforcement action that i to a main
would have
been necessary to halt or reduce the permittedt
activity in
compliance with the condition of this permit,
Bypassing of Treatment Facilities
Definitions
"Bypass" means the known diversion of waste streamswhich o frm neat ny a ortioneof a
treatment facility including the collection system,
established or operating mode for the facility.
"Severe property damage" means substantialto become inoperable,al damage to property,
damage to the treatment facilities which catial them
or
substantial and permanent loss of natural resources which does not labe
expected to occur in the absence of a bypass. Severe property cage
economic loss caused by delays in production.
i. Bypass not exceeding limitations.
The permittee may allow any bypass to occur essential
not a cause
eto assure
effluent
limitations to be exceeded, but only if it also is for se
efficient operation. These bypasses are not subject to the provisions of Paragraphs
c. and d. of this section.
C. Notice
bypass, it
111 Anticipated bypass. If the pe ntee knows in advance ore the datef the need or a of the pass;
shall submit prior notice, i possible at least ten day
including an evaluation of the anticipated quality and affect of the bypass.
(2) Unanticipated bypass. The permittee shall submit notice of an unanticipated
bypass as required in Part II, Fa 6 of this permit (2-hour notice).
d. Prohibition of Bypass
tll Bypass is prohibited and the Permit issuing Authority may take enforcement
action against a permittee for bypass, unless: '
a sonal injury or severe property,
a? Bypass was avoidable to prevent loss of life, p j
damage;
ass, such as the use of auxiliary.
bl There were n feasible alternatives to the bypass,
treatment facilities,: retention of untreated wastes or maintenance during normal
Page 10 of 18

Fart II .
periods of equipment downtime. is condition is
not exercise offieci if adequate backup
reasonableengineering
ent should have been installed in the rnra
equip ass which occurred during no al periods of eq
judgment to prevent a bypass d
downtime or preventivemaintenance;
an
(c) The permittee submitted notices as required under Paragraph c. of this section.
() The permit issuing Authority May approve an anticipated bypass, after
considering its adverse affects, if the Permit issuing Authority d tl) of this section, that it
will meet the three conditions listed above in Paragraph
. Upsets
a, Definition.
"Upset " means an exceptional incident in which there
emitseff ll ent intent onal ands
Temporary noncompliance with technologybase p
because of factors beyond. the reasonable controlsed limita
of thoperational errore permitteeAn , improperly
include noncompliance to the extent cau y
designed treatment facilities, inadequate treatment facilities, lack of preventive
maintenance, or careless or improper operation.
b'; Effect of an upset.
An upset constitutes an affirmmative defense to an action bou the requirements of
ght for noncompliance
with such technology based permit effluent limitationsde dur
paragraph C. of this condition are met. o liancdetwasicaused byaupset and
ing
administrative review of claims that noncom
before an action for noncompliance, is final administrative action subject to
judicial review.
C. Conditions necessary for a demonstration of upset.
er ittee who wishes o establish the affirmativeoperase of ting upset
other all
P g properly contemporaneous
demonstrate, through pro rl signed,
relevant evidence that:
( 1) An upset occurred and that the permittee can identify the cause(s) of the upset;
(2) The permitted facility was at the time being properly operated; and
(3) The permittee submitted notice of the upset as required in Pert II, E. 6. (b) (E) of this
permit.
,� e peranittee complied. with any remedial measures required under Part II B. 2.
of this permit.
d . Burden of proof.
In any enforcement proceeding the permittee seeking to establish the occurrence o
an upset has the burden of proof
Page 11 of 1

Y
part 11
the permit discharge requirements and all data generatedmust e If no approved
eported down to
the minimum detection or lower reporting level of the procur
methods are determined capable of achieving minimum detection and reporting
he most sensitive (method with
levels below permit discharge requirements, then the
method t be ed.
the lowest possible detection d reporting level) approved
4. Penalties for Tampering
The Clean Water: Act provides that any person who 'falsifies, tampers per with, or
knowingly renders inaccurate, any monitoring device or method required to b
maintained under this permit shall, upon conviction, be punished by a fine of not
ore than $10,000 per violation., or by imprisonment for not more than two years per
violation, or by both.
5, Records Retention
The permittee shall retain records of all monitoringdo ,r including
all
cordings for
calibration and maintenance records and all original strip
continuous monitoring instrumentation,copies
of all the sample,srequired by this
e ant,
permit, for a period of at least years frorn the
datreport or application. This period may be extended by request of the Director at any
time.
6. Recording Results
For each measurement or sample taken pursuant to the requirements of this permit,
the permittee shall record the following information:
a. The bate, enact place, and time of sampling or measurements;
b. The individual(s) who performed the sampling ormeasurements;
e. The date(s) analyses were performed;
t, The individual(s) who performed the analyses,
e. The analytical techniques or methods used; and
f, The results of such analyses.
7. Inspection and entry
or an authorized representative, upon the
p nermittee shall allow the Director,
presentation of crea nuai -au vw max
Enter upon the permittee's premises where a regulated facility
o of ctivwpermty it,
i located
or conducted, or where records must be kept under the conditions
Have access to and copy, at reasonable times, any records that must be kept under
the conditions of this permit;
Page 13 of 1

Inspect at reasonable times any facilities, equipment (including monitoring and
regulated or required under this
or operations
control equipment), practices,
permit; and e times, for the purposes of assuring permit
Sample or monitor at reasonabl
compliance or as otherwise authorized by the Clean Water Act, any substances or
parameters at any location.
Change in Discharge and conditions
All discharges authorized herein shall be consistent with the terms is permit more
of this permit, The discharge of any pollutant identified in th!
ftequently than or at a level in extess of that authorized shall constitute a violation
of the permit.
planned Changes e to the Director as soon as possible of any planned
The permittee shall give notic
physical alterations or additions to the permitted facility- Notice is required only
when: a permitted facility may meet one of the criteria for
L. The alteration or addition to ce in 40 CFR Part 122.29 (b); or
determining whether a facility is a new sour 'he
The alteration or addition could significantly change the nature or increase t
-ged. This notification applies to pollutants which are
,1tity of pollutants discbai 'cation
qual s in the permit, nor to notif,
subject neither to effluent limitation
requirements under 40 CFR Part 122.42 (a) M.
Anticipated Noncompliance
The permittee shall give advance notice to the Director of any planned changes in
the permitted facility or activity which may result in noncompliance with permit
requirements.
Transfers aoor notice to and approval by
id incorporating bus-,
Water Act.
Lr Reporting
t'knll reDort to the central office or the appropriate regional
Anv
-mation snait De Y— Y 1-- '. -', - -
me aware of the circurn Stan ces. A written submission shall also be proviu-
page 14 of 18

1 L�
nation
of the cxrcurns ces.
of the noncompliance, and its
t dates and times, and if the
ipated time it is expected to
ce, eliminate, and prevent
ch must be reported within 24
t limitation in the permit.
e permit.
for any of the pollutants listed
hours.
by -case basis for reports under
aort has been received within24
W submit any relevant facts in a
tion'in a permit application or in
,o the virecwr, 1L, bil— +,ata.a.�..� such facts or info ation,
ante Notification
tee shall report by telephone to either the central office or the appropriate
`ice of the Division as soon as possibly, but
rhours
e cenorcfir t knowledge ase more than 4of the
next working day following the occu
of any of the following:
Tence at the water pollution control facility al suits i e
of nificant amounts of wastes which are -3-_ + ..< +60 'known
by
letter form `thin 5 days following first knowle
Page 15 of 18
etc.
dge of the occurrence.

bility Of Reports
t for data determined to be confidential der 2f Ted in lccordce Section
hthe
the Federal Act, 33 USG 1318, all reports prep
shall be made mailable for public tspeco of,the discharge Officesion at the thi r onable
onmental ;Manage ent orsion of
s
at the site
aeriod, not to exceed five (5) days. As required by;th fal Act, statement onany
e considered confidential. Knowingly along any
t a result in the imposition of criminal penalties a provided for in N`GGS
y
5.1(b)() or in Section 309 of the Federal Act.
sties for Falsification of Reports
person who knowingly makes .any false
Glean' Water Act provides that any p record or ether document
umen
: ent representation, or certification in any it, including monitoring
fitted or required to be maintained under this pa
its or reports of compliance or noncompliance shall, r b prisonment for
shed by a fine of not more than $10,000 per violation, y
none than two years per violation, or by both.
Wage 16 of 18

page 17 of 18

PART IV G
q J S G Ca Nita
FEE
pe 'ties must pay the annual administering compliance monitoring fee
hin 34 (thirty) days after being billed by the ADivision. t? Fail re to pay ay tcaus he fee i s
iely, manner in accordance th 1 NC
AC
to initiate action to revoke the Certificate of Coverage.
Page 18 of 18

Fi ure 1
✓ 0 t j
' • tWJ€ Rig), .rich
f i!"
i
Grave r
re
acilit..°> "
�'\6f ch rg t
?ClnnamecI Patlk *.
+C�ri SIE3 sv��tt�oa� ,�
'� a �►• c
a
Oyu\X41
*.; 1[ ♦ ":
BOAR
•i
1
"L
e � f
741 r
a - ; 4 r' fhri#t itdjr
r
Site Location
1000 0 000* Colonial Pipeline Compony
¢mateScale Paw Creek Fuel Delivery Facility
Approx,min Island Lake Quadrangle, 7.5 Minute Series P a w Creek, North Carolina
E,S ENGINEERING —SCIENCE

BASIS OF DESIGN
OIL/WATER SEPARATOR
Type: Coelescing Plate
Flow: 45 gpm
Size: 88"(L) x 55"(W) x 55"(H)
Material of construction: Molded fiberglass
Removal rate:, 10mg/L of oil droplets > 30 microns
Design Unit:
Manufacturer: Hydro -Flo Technologies
Model: DP24-F34
LEAD TREATMENT UNIT (OPTIONAL)
Type: Alumina oxide adsorbent or precipation
System to be evaluated with sample from pump test.
AIR STRIPPER
Type: Diffused Bubble (or Low Profile)
Flow: 45 gpin
Size: 74"(L) x 52"(W) x 80"(H)
Material of construction: Polyethylene/Stainless Steel
Removal rate: Varies by compound
Blower:
Flow: 600 cfm @ 28we
Volts: 230
Phase: 1
Hp: 10
TEFC
Design Unit:
Manufacturer: North East Environmental Products
Model: ShallowTrayTm 2641-P
IRON REMOVAL SYSTEM
Type: Filter Plate
Flow: 40 gpm
Size: 51"(L) x 37"(W) x 26"(H)
Material of construction: Aluminum
Note: Iron is not expected to exceed the discharge limits. Removal is to prevent
clogging of carbon adsorbers.
Design Unit:
Manufacturer: Carbtrol
Model: Micromorgue
CARBON CANISTERS
Type: Activated Carbon Adsorption
Flow: 50 gpm/canister

iber: 2 canisters
48"(L) x 44"(W) x 90"(H)
,rial of construction: Steel
�ovai rate: Varies by compound
gn Unit:
Manufacturer: Carbtrol
Model: L-5
wells with submersible pneumatic pumps
well with surface mounted air diaphragm pump
-ench sumps with surface mounted air diaphragm pumps
.nersible pneumatic pumps and air diaphragm pumps all work off of a single air
compressor.
gn Units:
Submersible Pneumatic Pumps:
Manufacturer: Clean Environment Equipment
Model: AP-4T
Air Diaphragm Pumps:
Manufacturer: Warren Rupp
Model: EBl-SM Type 3
OLS
i of the equalization tanks and oil reserve tank have a level controller which
shut down the entire system due to high level conditions. Several of the units
have internal controls to shut down the equipment in the event of a failure.

Date Collected 03/11/94
EPA METHODS 601 &
602
Date Received 03/14/94
Sample Matrix:
Date Analyzed 03/23/94
/ X /
Water ug/L
Field Sample Number: TRENCH
Sail /kg°
Laboratory Sample Number:
94031328
/ /
tither
Brsmcs is h laromt hens
<5.0
1,1-Dichloroethene
<5.0
Benzene
230
Brdmafcam
<20
trans-1,2'--Dichloroethene
<560
Ethylbenzene
28
Bromomethane
<100
1,2-Dich oro o an
<5.0
Toluene;
20
Carbon 'tetrachloride
<5.0
cis l,3- ichloropropene
<50
Xylenes
1,100
Chl.orobenzen
<5.0
trans-1,-Dichloropropene
<50
MTBE
340
� Cloraehan
<50
Methylene chloride
y
<20
E
<50
2-Chloroethylvinyl ether
<20
1,1,2,2-Tetrachloroethane
<5.0
Naphthalene
2
Chloroform
17
Tetrhloroethene
<5.0
Chloromethane
<100
1,1,1-Trichloroethane
<5.0
Dibromochloromethane
< .0
1,1,2-Trxchloroethane
<5.0
1 2-Di hlorobenzene
<5.0
Trichloroethene
<5.0
1,3-Dichlorobenzene
<5.0
Trichlorofluoromethane
<50
1,4-Dichloroben ene
<5.0
vinyl chloride
<50
Dichlorodifluoromethane
<50
1,2-Dibromoethane
<20
1,1-Dicholorethane
<5.0
12-Dichloroethane
<5.0

Client MR. JEFF RICHARDSi
Project PAW CREEK,
NC
PURGEABLE ORGANICS
Date Collected 03/11/94
EPA. METHODS 601 &
602
Date Received 03/14/94
Sample Matrix.*
Date Analyzed 03/ 3/9
/ X %
Water ug/
Field Sample Number: RW-1
/
soil ug/g
Laboratory Sample Number:
94031329
/
other
Bromodichloromethane
<0.5
,1--Dichloroethene
0.54
Benzene
36
Bromofarm
e2. p
trans -1, 2-�Dichloroethene
<0.50
Et ylben ene
34
Bromomethane
c1
,2-Dichloropropane
<0.50
Toluene
120
Carbon tetrachloride
<0.50
cis-1,3-Di hloropropene
< a0
Xylenes
350
Chlorobenzene
<0.50
trans-1,3-Dichloropropene
<5.0
MTBE
27
Chloroethane
< 5.0
Methylene chloride
2-Chloroethylvinyl ether
<2.0
I,1,2,2-Tetrachloroethane
<0.50
Naphthalene
24
Chloroform
<0.50-
Tetrachloroethene
0.50
Chloromethane1t1
1,1,1Trichloroethane
Q>5+D
Dibromochloromethane
<0.50
1,1,2-Trichloroethane
<0.50
1,2-Dschlorobenzene
0.50
Trichloroethene
mo0.50
1,3-Dichlorobenzene
<0.50
T ichlorofluoromethane
e5»C?
1,-Dichlorobenzene
<0.50
tii.nyl chloride
< 5.0
Dichlorodifluoromethane
<5.0
1,2-Dibromoethane
<•
1,1-Dioholorethan
<0.50
1,2-Diohloroethane
D.71

Project PAW CREEK, N
S Matrix:
Date Collected 3/11/9,4
f
/
water
soil
Date Received 033/14/ 4
tither
LEAD
IRON
PHENOL
Field. sample No. Laboratory Sample No.
TRENCH 9403132
<0.005
0.040
56
RW-1 94031329
<0.405
10.4
1.0
303CC/ 39.2
303OC/ 36.1
604
'Analytical Method
03/18/94
0 /15/94
03/22-23/94
Date of Analysis
t33/17/94
Date 'Extracted

Date Analyzed 0 22 4
" r
field Sample Number:
J J
oil u /
Laboratory SampleNumber:
INSTRUMENT
BLANK /
tither
Drbmcdi+ hlora methane
<0.56
1,1-Dichloroet xene
<0rt 0
Den ene+
<1.0
Drbmofo m
<2rt
tran �1,2 Dichlcrcae here
<D.
tkylbe ene'
<1>D
Drc momethane
<1
1, 2- 7ichloropr pane
<0. D
Toluene ene
<1 < n
Carbon tetrachloride
<0. 50
cis--1, 3-Dichloropra ene
<5.0
Kylenee+
<3. C?
Chlors b n ene
<0. 50
traraa-1, 3-Dichle+rcr�p c�pene
t5. D
TBK
<5.0
Chltrce have
<5rt0
Methylene chloride
<2.0
IPE
<5.0
2-� h oroethy viny ether
<2 .
1,1., , 2-Tetr hl sroethane
<0. 5Ci
N ht lene
<2 rt t7
Chloroform srm
<Q rt 50
Tetrachlcroethene
<0. 54
-------
Chloromethan
<1t
1,1 1-Tric lore ethane
<f}.'SA
Dibromc chlor methane
<Ci. 5tJ
1,1 2-Try lalcart ethane
<tl. 5D
1, 2-Dichloroben ene
<0.5f?
Tri hlt rc+ethene
t? 5C1
1, 3-Dichloroben ene
<D. 50
Trichlorofluoromethane
<5.0
1,,4-Dichloroben ene
< . Sti
vinyl Mears de
c5. {l
D.rchlor dif luoromethane
<5 >
1, 2-Da bresmr ethane
<2 • tl
1,1--Dicholorethane
<Drt 5`0
1,2 Dichlaroethane
<0.5C

Date Received 03/14/94
/ / Soil
Other
JI/
Matrix Spike
Analytical
LAD
Duplicates
Spike
Recover
Par ter S PLR N.
Blank
Cl
C2 RPD
SA
SR
SR
PR
BENZENE, ug/L
94031329
<1.0
47.0
46`.5 1.1%
10.0
36.5
47.0
105%
CHLOROBENZENE, ug L
94031329
<0.50
9.15
9.15 0
10.0
<0.50
9.15
92
1,-DICHLOROHTHENE, ug/L
94031329
<0.50
6.43
6.30 2.0%
10.0
<0.50
6.43
64%
TR11 ICHLOROETH NE,' ug/L
94031329
<0.50
9.01
9.12 1.2%
10.0
<0.50
9..01
90%
TOLUENE, u/
94031329
<10
159
156 1.9
10.0
146
159
130% {1
IRON, rig/L
94031328
<0.0 0
0.081
0.089 9.4%
0.050
0.040
0.081
82%
LE , cn /L
94031328
<0.005
0.053
0.052 1.9
0.050
<0.005
0.053
106%
PHENOL, u /L
940313
<1.0
58.1
54.2 7.0%
20.0
56.4
58.1
8.5% (1j
(1), SPIKE AMOUNT INSIGNIFICANT AS'COMPARED TO
SAMPLE CONCENTRATION.
Relative Percent Difference (RPD) =
Cl - C2
Cl
= Concentration One
NC - Not
Calculated
-------- X
100 C2
= Concentration Two<
(Cl+C2)/2
Percent Recovery = S R-SR
SSR
= Spike Sample Result
--------
X 100
SR
= Sample Result
A
SA
= Spike Added (Concentration);

PER
- - - - - ------------ —
ItM It
Mr"
MFUIM*ff�
1568, Mansfield, Ohio 44901 o (411

$1
A
404 446;8640 C-.E.E.Ati ntA, " : P.04
. - ,.--e . , w-.. 4 'a - ,r ror4 VW-•c ra I -A 'Y `c. 7 4-1t
FOR I
0
[diAI1 A!► 71 AA ova
4 AUTO PUMP
TIC PUMP FOR
WA L
CONFIGURATIOL!
r
eter or greater to oeptns of at least
the pump Faddy as to take In
cum . There shall be no timers.
air supply nose to pusn the coiieczeO TI Ia OUT ®a ire pump. ints Qyuju s5ntvt
omatl ell .
aerials of construction shall be stainless steel, brass, Defrin, nylon, Viton,
RP,
^, r
r

12/05✓91 = 44 3 -tv-t "t Q
lve Description
np valve design shall need only tw
np shall be able to function with it
;s for the pump air valves sh
J to the pump.
,,harge pipe of the pump shallb,
Page 2 of 3
air input and air exhaust.
--- for air inlet and ane far afir
)pet design with the poppet
Mess steel.
;on a lever assembly to
poppet valves to actuate
assembly and thus shift the
EIRMIM9 >• w
'aloes shall be able to pass 90 weight
iinute using 80 psi air pressure.
when discharging fluid from the
,ed a bleeding air supply to facilitate
being pumped to rise up through the
moved from the pump. The 'pump
d dormant for at lest two (
to function when compressed air i
stainless steel,
>p and bottom of the pump,
spring shall be a stainless steel alloy,
pomp shall supply a volume of at least 0.25 gallons per cycle at zero
arge head and 30 p l air supply.

j2/0z".19Z 1I#44
:.2Z 404 445 �64s3
I .-
•4 Top Loading
Specifications
Page
3
of
Gld Valves
Inlet of the pump shall be 40 Inches or lass above the bottom of the pump.
Inlet and outlet check valve shall be located above the pump body for easy
IM
Inlet and outlet check valves shall be located In one fitting located on the fluid
urge pipe, for easy access and servicing.
Inlet check valve shall be a free-floating, self-cleaning ball check valve.
outlet check valve shall be a free-floating, self-cleaning ball cheek value.
shall be able to remove at lust 2.0 Vpm with an 80 psi air supply, the Inlet
3 feet and pumping against a 15 psi head.
)merged of 3 feet.
rielatr
i1th non -Interchangeable brass quick connect fittings,

36.00'
CLE
NOTE:
ALL CONNECTIONS AVAILABLE WITH �
QUICK CONNECT FITTINGS.
FLUID DISCHARGE
FLUID INTAKE
I
w
1�
� ail
.rs

12/0' /9Z
404 44 640
J IN IY.E 1;a1 `4 I
t
aetween the atmo ph
art for the pump in the
to which the air and 11L
1.
uttvi f, ccu.�
11 pounds
ng which will do all of the
well environment.
an be easily connected
.g soil vapor extraction,

SOIL VEI
wl
Z 404 44S $640 G. . E Ott 2 antes, EA P. S
G WELL HEAD .ASSEMBLE'
AP-4 AUTOFUG'
PRESSURE RELIEF VALVE
FLUID DISCHARGE
20' VACUUM PORT
w w
w w yo +
ll'o 00 Ct�NE OF DEPRESSION

phase (L•) Adsorbr features. -
PM at only 1 psi pressure drop
less steel construction
operating pressure
nultiple'pipe collection system
ift fittings for easy handling
rating for transport
lease valve for continuous degassing
t
gt�
•
a
W w
39 Riverside Avenue, Westport, CT 0688

C 'T
ARB ROL

CARBTROI:
so 0
ICATIONS
5orption or suosurtace injection.
is designed to remove suspen e
particulate and iron bacteriai residue
from contaminated groundwater.
Particulates are removed by a
combination of gravity settling and
FIONS
filtration on a series of non- woven fabric
filter plates. Each of six filter plates are
ry: 40 gpm Max.
covered by a special filter media which
promotes coagulation of suspended iron
UV protected PVC
particulates and biological growth of iron
bacteria.
31HT: 150 lbs.
Groundwater is distributed to the head
"APACITY: 140 gallons
end of the clarifier through a submerged
distribution header, It then passes
411 FPT
successively through the vertical filter
plates, and then through a skimmer box
4" FPT
prior to discharge.
2" Plug
When individual filter plates become
blinded, they are easily removed for
PVC
fabric media replacement. Sediment
buildup in the bottom of the unit is
removed by wet vacuum.
39 Riverside Avenue, Westport, CT 06880 - 1-800-242-1150 - (203,
0 Copyright 1992 Carbtrol Corporation - 3/16/93 Al

Intermittent operation 1
$75
:strobe alarm light 1
1
Alarm horn 1
$1 7 5
Individual Alarm Lights 0
$
Low air pressure alarm switch 1
$1 71'
Nigh water level ` alarm switch 1
$ 0
Discharge hump level switch 1
$ 7 0
Water pressure gauges 0
$
Digital water flow indicator/totalizer (1-100 gpm) 1
$ 63
Air flow meter 0
$
Temperature gauge 0
0
Line sampling parts 2
$53
Air blower silencer
0'
Washer wand 1 No Charge
Autodialer, 3 channel, NEMA 4, surge protection, fuse, receptacle
0
Options Cast $4,885
Total Model 2641 System Pace, Including Options, ; Each. $25,759
G Ic n .
The Motley 2641 ShallowTray air stripper system is 7'3 high, 62" long, 4`4" wide, and weighs
approximately 1,280 pounds dry. Additional design information is included in the previously
provided Model 2641 drawing.
The revised fan selection above incorporates a 10 HP 3 phase 230 volt TEFC motor sued to
be non -overloading throughout the entire blower operating range. This blower will provide an
additional 10" w.c. at 600 cfm to overcome pressure losses in downstream vapor phase
granular activated carbon (G ) treatment'.
The ShallowTray system quoted above requires the supply of 20 volt, three phase, 60
Neat, four wire plus ground electrical power. If the onsite electrical provisions differ, please
contact North East Environmental Products.
Terms & Shipment:
•
r • s- • • ems. a • •
can answer any additional questions, comments, or concerns you may have. Canoe again, than
you for your interest in our products:
Sincerely,
'69on Shearouse, P.E.
Customer Service
File: Engineering Science

forth Carolina.
ice:
armance Estimate. V
LM.
price for the Model 2641, with optional components, is listed below:
Model 2641
y, 304L stainless steel
), 304L stainless steel
p, 600 cfm @ 18wc, 3 phase, 23OV, TEFL
camper; 304Lstainless steel demister, air pressure gauge, spray nozzle, sigl
inless steel latches; Schedule 80 PVC piping, tray cleanout ports, steel fra E
tem Price
nvironrnental Products 17 Technology Drive West Lebanon NH 03784 [phone] Fi

Option
Feed Pump
u
Discharge Pump
0
$ 0
NEMA 3R control panel with pump level controls- and maim disconnect switch 1
$2,324
with alarm interlocks, motor starter, panel light, UL listed
Intermittent operation
1$745
Strobe alarm light
t
$31
Alarm horn
1
$175
Low air pressure alarm switch
1
$1 71
Nigh 'water level alarm switch
1
$70
Discharge pump level switch
1
$ 0
Water pressure gauges
0
$ 0'
Digital water flow indicator/totalizer (1-133 ; pm)
1
$963
Air flow meter
0
$ 0
Temperature gauge
0
$ 0
Line sampling ports
2
$ 5
Air blower silencer
0
$ 0
Washer wand
1
No Charge
Auto dialer, 3 channel, NEMA 4, surge protection, fuse, receptacle
0
Options Cost
$4,885
Total Model 2641 System Price, Including Options, US$ Each.
$24,305
i-ol.
The Model 2641 ShallowTray air stripper system is 73;high, 62" long, 4'4"
wide, and weighs
approximately 1,20 pounds dry. Additional design information is included in
the attached
Model 2641 drawing.
The ShallowTray system quoted above requires the supply of 230 volt, three phase, 60
Hertz, four wire plus ground electrical power. If the onsite electrical provisions
differ, please
contact North East Environmental Products.
Terms & Shipment:
Carolina is $00.00.
forward to working with you on this project. Please don't hesitate to call or fax me direct
iswer any additional questions, comments, or concerns you may have. Once again, the
r your interest in our products;
Sincerely,
Dan Shearouse, P.E.
Customer Service
nginering Science

FRONT tSIt
i
TOR ISIrI.
REAR N,A
AIR EXHAUST LEFT 9 $ h s
RIGHT I::.
LOW AIR PRESS.
SWITCH
a
STROBE LIGHT .......z. J:: .AIR PRESS GAGE
CONTROLPANEL ERE
_. 0
IcyC i 80 In.
CLEAN -OUT ALARM HORN
PORTS :. : • 71 in
O WATER FLOW METER 6T In a :
INSPECTION
PORT 52in.
O 43 in
O O O
f i 34 in.
SIGHT TUBE O O
DISCHARGE PIPE
DETAIN ----*-fsE
7 In.
?4 In 1 52 in.
BASIC SYSTEM QPTIONALITEMS WfR. 30,23Uvok,4WIRE+GROUND
. SUMP TANK DISCHARGE PUMP °CONSULT N E.E.P FOR AMPACITIES AND
AERATION TRAYS 4 FEED PUMP I. DRAWING REPRESENTS A UNIT TYPICAL TO T14E OTHER VOLTAGE OPTIONS
,/_ BLOWER ADDITIONAL SLOWER SPECIFICATION YOU REQUESTED, MINOR CHANGES
,j'_ AIR PRESSURE GAGE EXP MOTORS MAY RESULT IN THE MANUFACTURING PROCESS
,I- DEMISTER FAD BLOWER STARTtSTOP PANEL
PIPING ./_ CONTROL PANEL
SPRAYNOZZLE _ MAIN DISCONNECT SWITCH
,f. WATER LEVEL SIGHT TUBE IS COMPONENTS±REMOTE MOUNT CiiNNEC I43N INFORMA7if}N
GASKETS ✓ INTERMITTENT OPERATION
LATCHES ✓ STROBE LIGHT
,/, FRAME ✓ _ ALARM HORN
POWER LOSS INDICATOR ITEM SIZE
✓.. LOW AIR PRESSURE ALARM SWITCH
HIGH WATER LEVEL ALARM SWITCH GRAVITY DISCHARGE 3 in. O FEMALE SLIP NORTH EAST ENVIRONMENTAL PRODUCTS, INC. DISCHARGE PUMP LEVEL SWITCH JOINT 1t TECHNOLOGY DRIVE PVCBO WEST LEBANON, NH 037E4
_ WATER PRESSURE GAGES FEMALE SLIP (603) 298»Tas1
2In. O
✓_ DIGITAL WATER FLOW INDICATOR DISCHARGE PUMP JOINT, FEMALE
AIR FLOW METER TOLERANOES DRAWING NAME:
_ TEMPERATURE GAGES WATER INLET 2 in, O FEMALE SLIP UNLESS ShallowTray@ Model 2641
vr_ LINE SAMPLING PORTS JOINT, PVCSO OTHtawlsE
AIR BLOWER SILENCER sFEI FMIED DRAWING n:
,# WASHER WAND AIR EXHAUST NOZZLE 8 in. O RING Proposal i#494920
AUTO DIALER DRAWN: tC custol&ER:
En r Science: Paw Creek N
DATE:
4/27N34 l SCALE: HTS SIZE: A SHEET; I OF n

1"kv im,
I
low profile air strippers
System Performance Estimate '1W
Client & Proposal Information: Model chosen: 2600
Engineering Science, Inc. - Steve Trirnberger Water Flaw Rate: 45.0 gp
##494920-Paw Creek, NC Air Flow Rate: 600 cfm
Water Temp: 55.0 F
Air temp: 20.0 F
Ratio: 99.7 cu. ftl cu. ft
Safety Factor None
Untreated Model2611 Model2621 Model 2631 IMIodel f� I
Contaminant Influent Effluent Effluent Effluent Effluent
Water Water Water Water
Air(lbslhr) Air(lbsihr) Air(lbsfhr) Air(lbslhr)
% removal % removal % removal % removal
Benzene 230 ppb 26 ppb 3 ppb 1 ppb <1 ppb
0.004592 0.005110 0.005155: 0.005176
88.7036°le 98.7239% 99,8559% 99,98 7%
Chloroform 17 ppb 2 ppb <1 ppb <1 ppb <1 ppb
0.000 38 0.000380 0.000382 0.000383
91.0334% 99.1960% 99 9279% 99.9 35%
MTE 340 ppb 203 ppb 121 ppb 72 ppb 43 ppb
0.003084 0.004930 0.006033 0.006685
40.4265% 64.5099°lam 78.8573% 87.4046%
o-Xylene 1100 ppb 101 ppb 10 ppb 1 ppb <1 ppb
0.02 487 0.024536 0.024738 0,024759
0.8237% 99.1580% 99 9227% 99.9929%
Toluene 200 ppb 26 ppb 4 ppb 1 ppb = <1 ppb
0.003917 0.004412 0.004479 0.004501
87. 86% 98.4070% 99 7989°lam 99.9746%
This report has been generated by ShdlowTray Modeler software version 1 A 1. This software is designed to assist a skilled operator
in predicting the performance of a ShallowTray air stripping system. The software will accurately predict the system performance
when both the equipment and the software am operated according to the written documentation and standard operation.
North East Environmental Products, Inc. cannot be responsible for Incidental or consequential damages resulting from the improper
operation of either the software or the air stripping equipment. Report generated: 4127/94
*Copyright 1992 North East Environmental Products, Inc, • 17 Technology Drive, West Lebanon, NH 03784
Voice. 603-298-70 1 F 603-2 8-7063 - All Rights Reserved.

HYDRO-FLO TECHNOLOGIES, INC.
Mastering the Art of Oil/Water Separation
HYDRO-FLO TECHNOLOGIES, INC;.
ENGINEERING MANUAL
CJ►� C)I �TEFt ATIC�N
9
Cogyright Ngtigg
Hydro -Flo Technologies, Inc. software, manual, product design and
design concepts are copyrighted, with all rights reserved to Hydro -Flo
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Copyright October 1993
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NATURALac
CORRECTIVE ACTION PLAN
COLONIAL PIPELINE COMPANY
AW
CHARLOTTE DELIVERY FACILIT�
7524 KENSTEAD CIRCLE tstt
PAW CREEK, NORTH CAROLINA
Prepared For. u
Colonial Pipeline Company
Resurgens Plaza
945 East Paces Ferry Road
Atlanta, Georgia 3032 -112
ter.
Ogden Project Number: 1-6048-0000-0004
Prepared By: Engineered By:
Icahn sham, Project Hydrogeologist Barry Del ,Proj t Engineer (EI7C
Review By. CRC1
a .rn
NC Registered Geologist No. Date r' r`� � SE
OGDEN
z
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e'
TABLE OF CONTENTS
Section
PaLe
EXECUTIVE SUMMARY ................ ....... ...... ..
iii
1.0
INTRODUCTION
1
1.1
Project Understanding and Scope .
1
1.2
Background
1
1.3
Site Geology
2.0
AVAILABLE' CONTAINMENT IAL TECHNOLOGIES ......
3
2.1
Soil Remediation
2.2
Ground -Water Containment
6
.3
Ground -rater Remediati n ..
8
3.0
TECHNICAL APPROACH
11
3.1
On -Site Pilot Study .
11
.1.1 Methodology . `...................... ... `... ...
11
3.1.2 Data Reduction and Evaluation .
13
3.1.3 Conclusions and Assumptions .
1
4.0
SOIL VAPOR EXTRACTION (SVE) SYSTEM DESIGN .. .. .
.
17
.1
Goal ............................
.2
Systems Design
17
4.2.1 Subsurface Extraction Design ....
17
4.2.2 Vapor Monitoring/Recharge+ Points
18
4.3
SVE System Components
18
4.3.1 Blowers
8
4.3.2 Vapor Stream Condenser
19
4.3.3 Emergency Safety Switches
19
4. .4 System Monitoring Equipment .
9
4.3.5 Header System Layout
9
.4
Secondary Vapor Treatment
20
4.4.1 Building .. .... .
2
4.4.2 Evaluation of Off -Gas Emissions ......................
21
4.4.3 Air Quality Permitting
1
5.0
GROUND -WATER EXTRACTION TION Y T DESIGN ................
23
.1
Goal .........................................
3
.2
Approach .................' .. ...................
2
5.3
Hydraulic Conductivity Determination ..
5
.4
Free Product Recovery Well Design ..
27

TABLE OF CONTENTS (Continued)
5.5 Ground -Water Extraction Trench Design ......................
27
5.5.1 Depth and Spacing of Trenches ......................
27
5.5.2 Pipe Diameter and Gradient .........................
28
5.5.3 Design Discharge Rate .......... ................
28
5.5.4 Sediment Filters, Backfill, and Trench Cap ...............
29
5.5.5 Dewatering and Trench Soil Treatment .................
30
5.5.6 Design of Sumps and Pumping System ............. ...
30
5.6 Manifold Piping and Electrical Wiring ........................
31
5.7 Treated Water Discharge ................................
31
5.8 System Components and Equipment Compound ..................
32
5.9 Oil/Water Separator ...................................
32
5. 10 Low -Profile Air Stripper ................................
32
5.11 Activated (liquid phase) Granular Carbon ......................
33
6.0 SYSTEM MONITORING AND MAINTENANCE .................
35
6.1 System Startup and Balancing .............................
35
6.2 Performance Monitoring and Evaluation .......................
36
6.3 Clean -Up Attainment Determination .........................
37
6.3.1 Residuals Measurement ...........................
38
TABLES
Ja _b1 e —Pape
I . Soil Vapor Extraction Pilot Study Results Summary ......................
16
2. Slug Test Well Statistics and Calculated Hydraulic Conductivities ..............
26
3. Implementation Schedule ....................................... 39

CORRECTI'VE ACTION PLAN
Colonial Pipeline Company
Charlotte Delivery Facility
Paw Creek, North Carolina
1.0 INTRODUCTION
1.1 Proiect Understanding and Sgope
This Corrective Action Plan (CAP) was prepared by Ogden Environmental and Engineering
Services (Ogden) at the request of the Colonial Pipeline Company to address the containment
and remediation of petroleum hydrocarbon contaminated soil and ground water at their Charlotte
Delivery Facility located in Paw Creek, North Carolina. All geological and hydrogeological
aspects of this CAP were conducted under the supervision of a North Carolina Registered
Professional Geologist. All engineering and remedial designs were prepared under the
supervision of a State Registered Professional Engineer.
A phased approach to the containment, recovery, and treatment of petroleum hydrocarbon
contaminated soil and ground water has been developed to minimize initial remedial costs while
providing critical data concerning the treatment systems performance. Areas identified with the
highest concentrations of hydrocarbons in soil and ground water have been selected for
containment and treatment during this initial phase. Areas identified with lower levels of
hydrocarbons, in previous investigations, may be addressed in future remedial phases if
containment and treatment is warranted. Should remedial efforts be required in the areas with
lower hydrocarbon levels, additional phases will be implemented, based on the performance
observed during the construction and operation of the initial remedial phase.
1.2 Backimound
The Charlotte facility temporarily stores refined petroleum products and has been in operation
since 1963. These products stored are fuel oil, kerosene, and various grades of gasoline.
Presently, no leaded gasolines are transported on the Colonial system. Prior to the change from
I

leaded to unleaded gasolines, Tanks 730 through 737 reportedly ntained regular leaded
gasoline. Tank 710 contained Amoco unleaded premium gasoline and Tanks 711 through 717
contained leaded premium gasoline. After the phasing out of leaded gasolines, Tanks 730
through 737 reportedly contained regular unleaded gasoline and Tanks 710 through 717
contained unleaded premium gasoline. Tanks 751, 760, and 770 are reported to have only been
used for fuel oils. Tanks 750, 761, and 762 are kerosene tanks.
Based on the results of the investigation of Soil and Ground Water (Trigon; ;March 29, 1991)
d the results from the Additional Site Assessment Activities (Colonial; July 18 and October
, 1991) at the Colonial Pipeline Charlotte Delivery Facility, the presence of hydrocarbon -
impacted soil and ground water has been identified by the installation of multiple soil test
borings and ground -water monitoring wells.
1 Site Geoloev
e site is located in the Piedmont physiographic province approximately five miles northeast
of centralCharlotte, North Carolina. The site lies within the Charlotte belt of the Piedmont
Province, and according to the Geologic Map of North Carolina (1985), the site is underlain
mainly by foliated to massive quartz diorite: Borings made previously at the site confirm that
the bedrock is mainly composed; of diorite without quartz, grog in texture from coarse to fine
grained and light to dark in color. Some darker rocks encountered ( hibot) are possibly
xenoliths of more mafic composition than diorite. Bedrock also out cropslocally at the site in
the vicinity of Tank 733 and along the two unnamed creeks near the property boundaries. The
surf icial soils at the site consist almost entirely of fine-grained clayey to silty saprolite developed
from the weathering of the underlying bedrock. The sail thickness ranges from a few feet to
greater than 40 feet locally.
Y
2

1
tilable, three treatment options
oil R mediation
x
�ff
► In -Situ Bioremediation,
Soil Vapor Extraction.

i
i
Soil vapor extraction (SV"E), commonly referred to soil venting, is a technique that has been
shown at ether locations with similar characteristics to be an effective means for remediating
petroleum n ina w sails. This technology is utilized to remove volatile contaminants in the
interstices of the soil particles by creating a deliberate movement of air through the subsurface.
Soil venting has also been shown to cause enhanced bioremediation of soils and ground water
by supplying oxygen to hydrocarbon degrading bacteria indigenous to soil (Hinchee et al., 1987).
In many cases oxygen is the limiting factor for ,growth of the bacteria.
Soil venting is suited for the removal of volatile organic compounds (VOC) from moderate to
highly permeable soils, and in such situations is expected to be more efficient than it hushing,
excavation, or incineration. Recent research has shown that vacuum extraction coon of V C from
the unsaturated .zone is also practical for low permeability soils hmuth, et. al., 1988). The
enhancement of soil permeability under laboratory conditions has indicated that even fine grained
clayey soils are susceptible to the flow of air once secondary permeabilities have been enhanced
by the introduction of high velocity air under low to moderate pressures. This increase in
permeability in the formation allows air to flow through the subsurface in a more uniform
manner and at an increased rate.
The efficiency of soil venting operations will depend significantly on three factors: vapor flow
rate, vapor flow path relative to the contaminant distribution, and composition of the
contaminant. Limitations to the efficient use of SVE include factors such as intrinsic sail
properties, depth to ground water, and chemical properties of the organic contaminants. All of
these factors affect the rate of volatilization of an organic material adsorbed in the soil matrix.
d' The feasibility of S "E is generally determined by evaluating the pneumatic properties of the
unsaturated zone at -a site and the contaminants involved.
Where acceptable conditions are met, S `E technology can be used in combination with other
remediation techniques for the treatment of complex contamination problems such as
contamination of both the unsaturated and saturated zone. These techniques include air
stripping, carbon adsorption systems, phase separated hydrocarbon recovery, and bioremediation.

table. Ground water at the site occurs at a depth from 6 to 18 feet. Hnu photoionization
readings indicate elevated organic vapors in the vadose zone. The soils are sandy clayey silts
(weathered saprolite), and silty clays. Secondary permeability features (joints, fractures) are
common beneath the site and have shown to influence the migration of contaminants. Given the
constraints and conditions, SVE appears to be the most appropriate method of remediating the
hydrocarbon -impacted soils at the site. The addition of a pump -and -treat system will lower the
water table and expose a larger area of the unconsolidated soils for it venting. A combination
of these technologies will result in a more effective hydrocarbon recovery system and help
prevent contaminant migration. Due to the low -permeability fine-grained material comprising
the unsaturated vadose zone beneath the site, Ogden proposes to augment the proposed soil vapor
extraction with the addition of pneumatic fracturing of the subsurface soils to enhance the
recovery of the volatile organic compounds. To measure the effects of pneumatic fracturing
during soil vapor extraction, a bench pilot (treatability) study should be conducted onsite. The
data and observations collected during a pilot study should be considered in the design of it
and ground -water treatment systems.
2.2 !Grgynd-Walp _ .j: Contai=tnI
Based on the current ground -water containment/control technologies and available data, five
at the Charlotte Delivery Facility:
Interceptor Systems;
0 Slurry Walls,
0 Grout Curtains,
0 Sheet Piling,
# Well Systems.
Interceptor systems (commonly referred to as collection trenches) are typically used to remediate
shallow aquifers where conventional excavation equipment such as backhoes can reach several
feet below the water table. Interceptor systems are most useful where the contamination of
concern is low -density material (such as gasoline) that will not sink below the trench bottom.
Interceptor systems are not particularly effective with respect to deeper aquifer contan-dnation
6

or high density compounds. These systems may be difficult to construct or locate in high traffic
areas. A disadvantage to trenches is that they can fail if they are poorly designed; common
problems are clogging from infiltration of soil particles, improper construction, or failure to
extend the trench bottom to the full depth of the contaminated zone.
Slurry walls are basically trenches located around an area of ground -water contamination, then
backfilled with a relatively impermeable material such as bentonite. The walls, which function
as underground dams, can be constructed upgradient from the contaminant plume to impede
ground water flow across the site, or downgradient to help prevent contaminant flow away from
the site. Slurry walls, typically used to restrict flow through shallow aquifers, are often used
in conjunction with pumping wells. Ground water that backs up against the wall, which could
cause the well to fail or cause water to flow around the wall into unanticipated areas is removed
using the pumping wells. To prevent ground water from passing under a slurry wall the wall
must be seated in impervious material below the aquifer. Slurry walls generally have lower
maintenance requirements than pumping wells but can deteriorate, especially when acids or
sulfides are present. Contaminated soil may be excavated during construction requiring
treatment or disposal as a special or hazardous waste. Typically the construction method uses
a mud slurry to keep the trench open until it is backfilled. The mud that is displaced during the
backfilling is difficult tomanage and may also require treatment or disposal as a special or
hazardous waste.
a grout mixture (typically cement -based) into boreholes surrounding a site. The intent is fo
grout to fill available pore spaces in rock or soil and harden, causing a decrease in the origina.
permeability of the rock or soil. Grout curtain installation generates smaller volumes of wash
soil and water but generally cost more than slurry walls to construct. The integrity of th4
completed grout curtain is impossible to verify by non destructive methods since the grout i
injected below grade and cannot easily be inspected. Sheet piling includes using a pile hamme
to drive connected steel sheets through an aquifer to form a barrier to impede water flow
Typically, sheet piling is best suited for use in shallow aquifers, and must be seated in relativell
7

r
1 impermeable material below the aquifer to be effective. Sheet piles require little or no
excavation, and little soil waste is generated. installation can be difficult inconsolidated'
material or where large rock is prevalent. Even in the best conditions, however, sheet piles will
not provide a complete barrier and should only be considered a temporary measure. Sheet piles
should be used in conjunction with other measures, or to only restrict rather than stop
contaminant migration. Although little or no soil waste is generated, high material and shipping
casts can be prohibitive for large-scale projects.
Recovery well systems are the most common`method of controlling ground water contamination,
d are typically accompanied by treatment systems for the extracted water prior to discharge
(commonly referred' to as pump and treat). Well point systems and recovery well systems
provide a means of continuous or intermittent withdrawal of water to modify the ram and
direction of ground water flow (hydrauliccontrol), and impede further contaminant plume
migration. Injection well systems, or pressure ridge systems, involve the injection of
uncontaminated water to create underground water mounds that divert clean .ground water'around
a ' ' or away from a contaminated site. Well systems are considered the most versatile for
controlling subsurface flow. In addition well design mechanics e better understood y most
hydrogeologists, and engineers than ether control technologies. Well systems can provide
effective hydraulic control in deeper aquifers or for recovering heavier or sinking compounds
as well as control for shallow aquifers and less dense compounds. In tight soil, shallow aquifer
conditions, well systems may not be as effective in preventing plume migration as other captions'
such as intercepter trenches and subsurface barrier walls. Although well systems can have
higher operation and`mainten sts than other containment methods they do provide a means
of recovering and treating' n mated ground water.
2.3 _Qr_gmLid-3YaAgLr Rernediation
Based on the current ground -water remediation technologies and available data, five treatment
options were considered as applicable ground --water treatment methods for the Charlotte Facility:
+► In -Situ Bloretuediation,
Air Stripping,
8

Sparging (aeration tanks);
Granular Activated Carbon with Steam Regeneration-,
Granular Activated Carbon Beds.
In -situ bioremediation as a stand alone treatment method requires extensive field and bench scale
tests (geotechnical studies, contaminant loading/nutrient requirement determinations, microbial
studies, feasibility studies, etc.) in addition to subsurface modeling to design an effective system.
The installation cost for this particular method is relatively high with medium to high operational
costs. Based on the evaluation of subsurface soil data, the highly variable and anisotropic nature
of the site would greatly reduce the effectiveness of in -situ bioremediation and would add to the
cost of design and maintenance.
(3round-water remediation by pumping and air stripping appears to be applicable based on
current site conditions. The installation cost of an air stripper is generally low to medium with
operational costs which are generally low. This method takes advantage of the relative
insolubility of most non -chlorinated hydrocarbons in water and their preference to air as a
carrier. The use of an air stripper also allows the addition of a secondary treatment method
which can be operated in conjunction with pumping and treating (carbon adsorption,
biorernediation, catalytic combustion). Due to the calculated low transmissivity and anticipated
air stripper for site remediation may require an equalization tank prior to air stripping to
maintain an effective treatment rate through the system.
The use of an aeration (sparging or low profile air stripping) tank as a treatment option for
ground -water remediation was also considered to be an effective method of ground -water
remediation due to the low flow rate anticipated from the recovery wells. Sparging becomes an
efficient means of ground -water treatment when the expected treatment rate is minimal (2.5 gpm
or less) or fluctuates greatly during pumping. Packed tower air strippers generally require
slightly greater flow rates (> 2.5 gpm) to maintain a high removal efficiency. Flow rates of less
than 2.5 gpm are feasible with packed tower air strippers but some type of equalization system
9

is usually required prior to stripping. This generally increases the overall cost of the is air
stripper design. With lower flow rates, sparging becomes more cost effective (depending upon
contaminant concentrations and residence times). The space required for installation is generally
less than or equal to other conventional ground -water treatment systems. Sp gig also allows
for the addition of other treatment systems in conjunction (activated carbon, oil/water separators,
etc.).
Due to the anticipated low flow to and high concentrations of dissolved hydrocarbon
compounds, the use of granular activated carbon alone may not be cost effective for this
location. The addition of on -site steam regeneration has the potential of reducing carbon use,
but the additional energy costs during regeneration will generally result in higher operational
costs. However, the use of granular activated carbon as a secondary polishing system in
conjunction with a primary treatment system will be required if the North Carolina Department
of Environment, Health and Natural Resources General NPDES Permit (NCG510000) for
diAwhnrvri-_ of tr ted> h tirru-ni nn contarninatm ornund-water is used
10

3.4 TECBNICAL AP
tive vapor extraction system was air
tests at the referenced site to provide
;gical soil formations in the vadose zone.
fficient air flow can be attained in the
recovery rates. The data from the pilot
d to estimate if diffusion will limit
fition to estimating air permeability, the
,uence of vapor extraction, expected ar-
gy
-flow rate through the vapor extraction
ie measured parameter are the ;vacuum
luen , air -flow rates, soil gas pressure
iminant concentrations. The effluent
contaminant concentrations comoined with the air -Row rates provide information as to tie
anticipated contaminant removal rate. The calculated radius of influence obtained from testing
was used in designing the position of the vapor trenches and wells for the initial phase
hydrocarbon recovery system.
The methodology used during this pilot study involved the drilling of several vapor extraction
pilot boreholes at selected areas of the property with hydrocarbon impacted it conditions
identified from previous boring/laboratory data. The boreholes were drilled to a 10-inch inside
diameter using air -rotary methods to help maintain natural soil conditions and to minimize the
effects of borehole "sming" commonly resulting from the use of conventional hollow -stem
augers. Eight -inch diameter, Schedule 40 PVC surface in was grouted in place within the
upper 3; to 5 feet of `each borehole to help secure the pilot testing/packer assembly during testing.
11

At approximately 5-foot intervals from the vapor extraction boreholes, 2-inch diameter, Schedule
40 PVC vacuum monitoring points were installed (and screened similar to the vapor extraction
points) using air -rotary methods. These vacuum points were installed and constructed in
accordance with industry standard monitoring well specifications (screen, casing, filter sand,
bentonite, grouted). Vacuum extraction units consisting of 1 hp Rotron centrifical blowers were
was also collected after the injection of air to evaluate the effectiveness of this enhancement
process.
Since pneumatic fracturing of the soils was to take place adjacent to aboveground structures
(storage tanks), the occurrence of ground heave was monitored during air injection procedures.
Survey monuments were constructed in the vicinity of both extraction test areas tomeasure
ground heave. The monuments consisted of a hand dug hole approximately 6 inches in
diameter, 12 inches deep, with a 14 inch segment of steel bar installed in the center and grouted
to the surface. Approximately I inch of stick-up was maintained at each monument for use as
12

a surveyed reference point. Each monument was surveyed ana an artnuary etevation was
calculated from a stable reference point adjacent to each fracture site. During the injection of
air through the borehole, periodic measurements of the monuments were taken and new
reference elevations were calculated, and compared to the elevations under pre -fracture
conditions.
Up to 0.02 feet of vertical ground heave was measured during monument surveys (five feet from
fracture point) immediately after the initiation of air injection. However, several monument
survey events documented the "subsidence" (lowering) of the soils within 5 feet of the injection
site (as much as 0.01 feet) possibly due to the release of subsurface pressures from the escape
of air through subsurface features (fractures). Based on the evaluation of unite geotechnical and
survey data, no adverse effects are anticipated on underground utilities or aboveground tanks at
the site. The placement of pneumatic fracture points will be such that any nearby feature will
be at a distance which exceed the anticipated radial influence of the anticipated fractures
produced.
3.1.2 Data Reduction and Evaluation
The following assumptions were utilized in the development of the full-scale soil vapor
extraction system:
0 site soils are homogeneous and isotropic;
0 all soil pores are interconnected;
air flow through the soils is laminar in nature
relative humidity of soils is optimum (94% to 98.5%);
0 vapor diffusion coefficient is equal to porosity;
0 organic matter content in soils is negligible;
soil temperatures remain constant (isothermal);
WA.- %'Wilt"AAALAIC"", T"t,WL,7 &A. ­.. .- - t,- ­­)
changes in atmospheric pressure does not significantly affect the porous medium
structure relative to the porosity;
the effect of gravity on vapor flow is negligible;
0 changes in the air -filled porosity due to contaminant removal are negligible;
0 changes due to meteorological, barometric pressure, wind, infiltration of rainfall
and a fluctuating water table are negligible.
13

The data collected during the pilot test was reduced graphically and mathematically to aid in the
evaluation of trends, and to calculate an average effective air permeability for the proposed
remediation site. The vacuum data from selected monitoring points (pre and past fracture
conditions) was evaluated by graphing the measured vacuum against time on a semi -log graph. A
"best fit" line was drawn through each graph or data setto obtain a slope to use in the calculation
of air permeabilities. The slope of each vacuum point data set was calculated and used in a
mathematical equation to define permeability (k).
e measured flow rate data collected on the blower unit during each test segment was reduced to
standard temperature and pressure (68'F and 1 atmosphere) and was used with vacuum influence
measurements to calculate the effective radius of influence for the vapor extraction system.
31.3 Conclusions and Assumptions
Based on the evaluation of the field data collected during the implementation of the soil vapor
extraction pilot study at the referenced site, two main observations were noted as significant. The
first observation was that the introduction of air under low to moderate pressures (30-50 psi) within
the local saprolitic soils appears to enhance the conduciveness of the existing secondary permeability
(relict metamorphic ftures, joints, dikes, sills, etc.). The second observation made was that the
majority of air movement beneath the site appears to be along preferential pathways (secondary
permeability) rather than uniformly (primary permeability) across the test site. The increase in
secondary permeability was observed by a change in air flow rates measured between pre -
enhancement and post -enhancement conditions.
After pneumatic fracturing, flow rates were observed to increase by as much as 32 times the pre -
fracture condition. Likewise, hydrocarbon removal rates were observed to increase by as much as
.5 times the pre -fracture condition. After a second pneumatic fracturing event was performed
(approximately 12 feet from the initial fracture point), changes in flow rates ranged from a decrease
of 2 to an increase of 5 times. The changes in hydrocarbon on removal rates ranged from a decrease
of approximately 2.5 to an increase of 3.5 times. Overall, however, the effects of pneumatic
14

fracture enhancement increased subsurface air flow by a average of 8.5 times pre -fracture conditions
d hydrocarbon removal rates were increased by an average of 2 times pre -fracture conditions.
From these observations, two main conclusions were used for the design and expected
implementation of the SV'E system. The first conclusion is that the migration, and therefore,
recovery of hydrocarbon -laden soil gas vapors at the referenced site is controlled by the pre-existing
preferential "pathways" beneath the surface and that by enhancing the permeability of these
"pathways", greater hydrocarbon loading rates may be obtained. The second conclusion is that
pneumatic fracturing of soil can restrict the existing or previously enhanced on permeability.
It is suspected that during the enhancement of a given fracture network, overlapping fractures in
other previously -enhanced fracture networks (or even within the same network) may be restricted.
Therefore, the spading of which fracture paints are located, the sequence in which fracture
enhancement is performed, and the time during the remedial program in which pneumatic fracturing
is phased in is critical to the effective recovery of hydrocarbons from soil.
15

any
11ity
e
fina
Lion
Ilt Paramot #' C',
{PtStF'
{a C
''
C1culated vee Air 0.11
4.02
0.33
1.88
2,80.7
e ...iit idar .:
Average; Axi�V 0.015
0.510
0.023
0.047
0.657
at di o:Infle>nce .5
RA
25
8.0
15
12,5
31aes
{ t2tliCl; {f«
ated Initial adhig Rate 0.0012'
0.006
0.0007
0.001
0.0708
0" vacuum (lb/day/ft.)`.
ilrxated1►ir. 11u w ; 0.018
0.8
0.086
0.109
1.07
VaicuumiX C FM/ft.T
a. 0ILt dit S p " Tn>'Iuence ' 7.5
25
13.0
25
18
t ial adng to 0.0020
0.0177
0.0022
0.0043
0.4108
80nUlb/dalft.a;
Pre-Frac =Data prior to fracturing a specific location.
Past-Prac = Data subsequent to fracturing a specific location.
l darcy = 9.87 x 10 cni2.
ft. = feet.
SG' lft - standard cubic feet per minute per vertical foot of well screen.
lbfdaylft - pounds per day per foot of well screen,
16

4.0 SOIL VAPOR EXTRACTION (SVE) SYSTEM DESIGN
4.1 !GoL -
Ogden has evaluated the soil analytical and vadose zone screening data provided by Colonial
Pipeline and has developed a phased approach to the treatment of the surficial hydrocarbon -
impacted soils in the vadose zone at the referenced facility. Additional engineering and onsite
planning will be required for the development of additional vapor extraction locations should
they beneeded at the facility.
4.2 SyLterus D inn
Systems design considerations as well asspecific system components are discussed in Sections
5.3 through 5.7. A site plan showing extraction locations and system component details are
included in the Soil and Ground -Water Hydrocarbon Recovery System construction drawings
which are included as part of this Corrective Action Plan.
4.2.1 Subsurface Extraction Design
The proposed vapor extraction system will consist of a horizontal trench network comprised of
two separate trench units each totalling 100 feet in length (200 feet total length). The trench
system will be designed to contain impacted ground water immediately upgradient of the system
as well as recover entrained contaminants which have migrated downgradient within the
hydraulic influence of the trench. The trench system is designed to perform a dual function; to
recover hydrocarbon vapors in the shallow subsurface due to surface spills and to impede the
migration of impacted ground water in the shallow aquifer. The removal of ground water by
the trench system should enhance the vapor recovery phase, of remediation by exposing
additional impacted soils to the induced vacuum applied through the trench. Also the subsurface
vacuum applied at the collection trench should increase ground -water recovery rates. Free
product, impacted ground water, and hydrocarbon it vapors will also be recovered from a 6-
inch well that will replace monitoring well MW-1. Ground water will also be recovered from
three rock wells that will be installed on the northern end of the property in the vicinity of
monitoring wells MW-2, MW-3, and MW-4.
17

4.2.2 Vapor Monitoring/Recharge Points
Ogden proposes to augment the installation of vapor recharge points with the enhancement of
soil permeability by pneumatic fracturing, Selected vapor recharge points would be located
approximately 20 feet from either side of the extraction trenches, spaced on 35 feet intervals,
and pneumatically fractured in the same manner as during the SVE pilot study. By introducing
air to the subsurface soils surrounding the vapor extraction trenches, additional preferential
pathways would be created as well as the enhancement of existing pathways allowing for the
removal of hydrocarbon -laden air -filled voids not previously affected by the vapor extraction
system. During the development of new air flow pathways, existing pathways may be restricted.
It is therefore proposed to initially recover as much of the hydrocarbon mass as is practical from
the reasonably undisturbed soil matrix prior to fracture enhancement. Extraction system
monitoring and performance evaluations for the first several months will be used to estimate the
appropriate time to initiate recharge point installation.
4.3 S3LE System Comnonents
Ile basic equipment for the SVE system consists of pumps or blowers to provide the motive
for for the applied vacuum; piping and valves to transmit the air from the extraction wells
through the system; vapor pretreatment to remove it particles and water from the vapor
stream; and instrumentation tomeasure air flow and hydrocarbon concentrations.
4.3.1 Blowers
Several factors influence blower choice and design. The primary factor which was considered
was the amount of vacuum necessary to remove the contaminants at the prescribed flow rate as
calculated using the pilot test data. Other factors considered were related to the pressure losses
through the pump, piping, and the collection trench system. Based on pilot test calculations a
vacuum pump capable of maintaining air flow ranges from 200 standard cubic feet per minute
(scf:m) at a vacuum of 100 inches (water) to 400 scfm at 80 inches is recommended.
18

43.2 Vapor Stream Condenser
Air recovered from the subsurface it matrix will be in the 90 to 100 relative humidity range.
The condensation of ni-oisture on pipe walls will be collected by a vapor strewn condenser just
prier to air stream entry in to the vacuum pump. ;A low flow, low pressure pump, activated by
an electrical resistance water level sensor, will discharge the condensate to the influent flow
stabilization sump,
4.3.3 Emergency Safety Switches
Due to the remote location of the vapor extraction system components, several safety devices
will be installed on the systemto provide safeguards against equipment fouling, damage, or
accidental discharges. Pressure release valves will be installed to signal when an increase in
blower pressure (obstruction) occurs or a decrease in blower pressure results (blower failure).
high. -water shut-off switch will be installed to shut the blower system off in the event that the
air/water separator fills with water from the vapor stream. The explosion proof electric motor
used to drive the vacuum pump will shut down in the event motor/blower temperatures increase
to a point that ignition is likely to occur.
4.3.4 System Monitoring Equipment
Several system monitoring components will be installed on the vapor extraction unit to evaluate
equipment performance under normal operating conditions. Pressure gauges will be placed
ahead of the blower unit to monitor the incoming flaw through the system. Likewise, a pressure
gauge will also be installed after the blower unit to measure the ' backpressure through the
system. A temperature sensor connection will be placed near the emission point of the system
to measure the temperature of the vapor stream prior to being, emitted to the atmosphere.
4.3.5 Header System Layout
Due to the amount of piping required, each extraction paint will be rmanifolded together using
standard inch. diameter, Schedule 40 PVC piping. Each recovery point will be completed flush
with grade and protected from traffic by steel manhole covers and frame. The well head
assembly for the recovery wells and the header junction manhole will consist of ball valves for
1

regulating vacuums and air flow recovery rates and sample parts for obtaining ``vapor samples
from the recovery stream for laboratory analyses. Liquid (condensate) traps will also be
positioned along the inanifolded piping at key locations downslope fromextraction points to
collect and contain any condensate generated from the vapor stream.
4.4 Secondary a or Treatment
There are several alternative approaches for estimating the emissions from a SVE system. The
best method is to directly measure the emissions from the system while it is in full-scale
operation. The NCDEM allows up to 40 pounds per day (lb/day) of volatile organics (gasoline)
to be emitted from a single paint source such as an air stripping tower or SVE vent stack.
Based can this maximum allowable concentration, 'Ogden calculated. an estimated emission rate
for the proposed SVE= treatment ,system based on maximum petroleum hydrocarbon
concentrations measured in the vapor stream during the pilot study performed in the vicinity of
the extraction trenches. The calculated estimated emission rate is discussed in the section to
fallow (4.4.2). However, vapor concentrations typically reduce significantly, shortly after
system startup and maximum contaminant emission rates for the proposed system should be less
than this calculated maximum.
4.4.1 Building
The proposed soil vapor extraction unit will be housed in a single storage building measuring
approximately 12 feet by 12 feet. t. The location of this equipment compound is shown on the
Construction Drawings. All electrical connections to the system will be made from within the
building including the power supply which will be run below grade from the main power source
to the system controls. Two automatic cooling fans will ,be installed near roof vents at each end
of the building to help dissipate internal heat which builds up as a result of the remedial
equipment. The building, which will house the skid -mounted blower, air stripper, and air
compressor, will be placed on a 4-inch thick gravel pad.
20

According to the MCDEP, the maximum allowable emission rate for the following contaminants
must be met: benzene, 0.02 lb/day; toluene, 98 lb/day; and xylene, 57 lb/day.
Based on the estimated emission loading rate of 23.6 pounds of hydrocarbons (as gasoline), the
treatment of stack emissions for the proposed soil vapor extraction treatment system is not
anticipated.
Ogden has completed and submitted an application for a permit to construct/operate air pollution
abatement facilities and/or emission sources in accordance with the MCDEP. Approximately
90 days are required for permit review and processing. Once the MCDEP has evaluated the
referenced permit application, any additional conditions concerning the operation and monitoring
of the treatment system will be submitted to the NCDEM (if significantly different than the
conditions stated in this document).
22

5.0'` GROUND -WATER EXTRACTION N SYSTEM DESIGN
5.1 Goal
)roach
-l. Due to the low v(
allow aquifer.
; 4,^r4 nr ... s11 a tot'll
♦ rat I a► f. i'w
M
I
Jraulic conductiv
ed drain pipe;
,g of the following.
to the drain pipe,
jng the system,
ch Sumps - to collect flow and pump the discharge to the treatment system
ig clean -outs.
:)f horizontal trenches can be identified based on their function: intercep
to intercept ground -water from an upgradient source. Relief trenches are installed parallel to
the direction of flow to primarily lower the water table beneath a site. The proposed collection

-enches at the referenced site are to be constructed both perpendicular and parallel to the
)calized ground -water flow direction and will serve two main purposes; (1) to impede migration
f the contaminant plume, (2) and to lower the ground -water table to increase the volume of
ripacted soils for vapor extraction efforts.
1 addition to the ground -water collection/hydraulic control efforts outlined above, Ogden intends
) mitigate the further downgradient migration of dissolved hydrocarbon compounds from the
orthern diked tank basins bv the installation of a minimum of three dee round -water
Yells. The drilling and construction (
a of the final soil/ground-water reme
vells, is off the northern side of the prc
ige culvert. Due to the presence of sl
on wells will be drilled and screened
illing techniques. The overlying wa,
.h 10-inch diameter PVC surface casit
.ent bedrock. An 8-inch diameter bon
he open -hole bedrock.
ent of the screened interval for each extraction well. Ground -water quality measurements
made onsite with a portable gas chromatography (GQ unit. Based on the quantity and
of ground -water measured throughout each open rock hole, three 6-inch diameter ground -
%traction wells will be constructed and manifolded to the main treatment system described
report. After start-up of recovery operations from the 3 rock wells and once steady state
ons have been approached, ground -water draw down and radii of influence will be
red to evaluate the effective capture zone created at the northern end of the of the
,y. If the capture zone does not appear to adequately reduce the potential for offsite
,inant migration at the northern end of the property, then additional recovery wells will
24

be required.
Ln asymptotic condition was shown by
� data was then reduced and analyzed
ul approximate hydraulic conductivity
recovery data.
are presented in Table 2. The average site permeability calculated from the individual well
permeabilities is 0. 12 feet per day (4.23 x 10-' cm/sec).
25

r
Table 2. Slug Test Well Statistics and Calculated Hydraulic Conductivities
Colonial Pipeline Company
(Charlotte Delivery Facility)
7524 Kenstead Circle
le
Paw Creek, North Carolina
1♦
�. � :� �
t.
�. •
®. a
'. i..
ft - denotes feet.
ftlday - denotes feet per day.
2

;.4 Free ProduCt RecgveLry Well Des*
)ue to the presence of free product in ground -water monitoring well MWA, a total fluids recovery
iump will be installed wiihin a 6-inch diameter recovery well constructed in place of monitoring well
AWA to recover the free product and impacted ground water beneath this area of the site. This
kovery location will also be utilized during the soil vapor extraction phase to lower the shallow water
ible in this area to increase the areal extent of impacted soil for vapor extraction. A vacuum will be
emulsion, The recovered emulsion from this location will be conveyed below grade to an oil/water
separator prior to primary ground water treatment.
5.5 Ground -Water Extraction Trench Desien
Four major elements were considered in the design of the proposed horizontal collection trench system.
The elements included:
Location and spacing of drains to achieve desired head levels;
0 Pipe diameter, gradient and hydraulic design of the conduit system;
0 Properties and design of the filter materials;
0 Design of a collection sump or pumping station.
0 position and orientation of subsurface secondary permeability features
5.5.1 Depth and Spacing of Trenches
soil moisture. Due to a relatively shallow depth to ground water at the site, trench
I be required during excavation and construction. Open pumping has been selected as
dewatering, method due to the low hydraulic conductivity of the water -bearing formation
nature of the soils. A portable diaphragm or positive displacement pump will be utilized
,1-vel of standing ground water which has entered the trench excavation. Since the soil
ter is expected to be impacted by petroleum hydrocarbons, proper treatment will be
�rench network will be installed essentially perpendicular to the local ground -water flow
ie trend of the subsurface secondary permeability features (Joints, fractures) below the
27

A
water table interface. In doing so, multiple permeable features should be intercepted rather than a single
feature by the installation of a single recovery well. The greater anticipated recovery influence
produced by the trench system should influence a greater number (and lateral ) of preferential
flowpaths which have shown to be impacted by dissolved petroleum compounds.
5.5.2 Pipe Diameter and Gradient
The diameter of the trench pipe and the gradient or "slope' of the trench was evaluated to ensure that
water which arrives at the trenchline can be conveyed without a build- up of silt. Based on the low
kydraulic conductivity of the aquifer, the anticipated discharge rate, the hydraulic gradient, and the
length of each proposed trench segment, it is recommended that a pipe with a diameter of at least six
inches be utilized for collection trench construction. A smooth -walled, perforated, Schedule 80 PVC
)ipe was selected as appropriate for collection trench construction.
5.5.3 Resign Discharge Rate
Fhe anticipated discharge rate for the ground -water recovery trench system was estimated based on
nathematical equations (Driscoll, 1 86) relating the recovery of ground water' from `an infinite number
A paints. Due to the uncertainty of hydraulic characteristics associated with saprolitic soils, several
assumptions were used in estimating the ground water recovery rate from the trench system. The
assumptions are as follows:
i effects of vacuum on aquifer response not considered in calculations;
♦ site soils are homogeneous and isotropic;
all soil pares are interconnected;
average site hydraulic conductivity equals 0.20 feet per day;
• effects of natural ground -water hydraulic gradient not considered in calculations, i
area ground -water recharge data unknown;
nature and orientation of secondary permeability features unknown.
ial calculations of total flaw rate anticipated from the recovery trenches, a flow rate
to 10 gallons per minute ( is anticipated from the proposed ground -water recovery
d ground -water recovery will come from a single trench to better evaluate the stabilized
28

recovery rate from a single trench. Based on the stabilized flow rate and influentleffluent VOC
concentrations from the single trench, ground -water recovery from the second trench segment will be
initiated. Several weeks will be required to ensure that both trench lines have stabilized and the overall
recovery system has reached an equilibrium point. Once a stabilized zone of depression develops, the
S '*-I vapor extraction procedures will commence. In the same manner as the ground -water recovery
ol
system, vapor recovery will be initiated from a single trench at the time of startup. Initial VOC,
oxygen, and carbon dioxide concentrations will be periodically measured. Once relatively stabilized
concentrations are observed, the second segment of the vapor recovery trench will be placed into service
and balanced with the ongoing soil (and ground water) recovery systems.
5.5.4 Sedinient Filters, Backrill, and Trench Cap
The primary function of a filter is to prevent soil particles from entering and clogging the trench system,
whereas the primary function of an envelope (backfill) is to improve water flow and reduce flow
velocity into the trench system by providing a material that is more permeable than the surrounding soil.
Several undisturbed soil samples were collected during pilot testing drilling procedures and sent for
geotechnical analysis to aid in the design of vapor/ground-water extraction system design. Based on
the grain size analyses performed, approximately 1 percent of the sample material passed the # 200
(very fine sand) sieve while greater than 50 percent of the sample was retained between the medium to
very coarse sand size (0.59 mm to 1. 19 mm). It is proposed to utilize a geotextile fabric as the filter
or equivalent). The filter fabric will be selected on its compatibility with the petroleum
is identified within the ground water. The suitability of the filter fabric should be
from the ratio of particle size distribution to the pore size of the fabric. The filter fabric
zd around the top of the envelope material prior to constructing the trench cap to prevent
,logging the washed stone backfill and drain pipe.
kfilling, the trench line will be inspected for proper elevation below ground surface, proper
lignment, broken pipe, and for thickness of the gravel bedding. In order to ensure proper
ind to reduce the likelihood of disturbance to the trench, a minimum of one foot of backfill
29

ould be placed over the envelope before starting general backfilling and compaction 'procedures
sing 4-inch diameter perforated pipe will be
� vapor recovery system. Lighter petroleum
ged through the permitted vent stack. Heavier
)iologically due to the increased availability of
the clarifier during construction dewatering
ited soils.
I Pumping System
nn,,tmr.tt-,d in rnninnntinn with thi-. �znil vnnnr
iut the trench. A collection "sump" will be
Otfrf,�r" t^t�h
t system. The trenching should be constructed by a competent licensed contractor.
rge rate (Q) for the proposed trench system was calculated based on the following criteria:
he maximum inflow anticipated to the sump (based on aquifer hydraulic conductivity);
laximum storage capacity for the trench system with minimal pump cycling;
30

maximum water level in the collection sump at the start of a pump cycle will be approk
es below the collection pipe invert. The operating sump capacity will be approximately 10(
pumps selected for each sump location will be rated for 15 gpm @ 30 psi.
Manifold Piping and Electrical Wiring
9 1 9 IR W
fell Tim INWAA111 1, 0 *WQ
)nial
r"I &1:1
collection trench/tank basin area.
The discharge line from the treatment area will consist of Schedule 40 PVC piping, trenched
underground, and (in the collection trench area) conventional, high flow sprinkler heads. If necessary,
electric heat tape at the sprinkler heads and a heating unit in the effluent stabilization sump will be used
to prevent freeze damage during the winter months.
31

r ww w w w w ww •
o �• a• a w • w • «
w w • • w• � � w r - � w•
.10Uw-Rrgflle Air Stripper
The recovered ground water containing dissolved -phase petroleum hydrocarbons will be pumpe
the influent flow stabilization sump and then to a low -profile air stripper (bubble diffusion).
stripper will be designed with a maximum flaw rate capacity of up to 20 gallons per minute to
for additional round -water recovery paints or an unexpected increase in the proposed rec
trenches. The system does not containrandomly-spaced packing to foul_and is as only a fraction
height of conventional packed Towers. Maximum contaminant volatilization occurs as a rew

manufacturer's data, the stripping system is anticipated to lower the contaminant
i by an anticipated efficiency in excess of 90%. An increased efficiency can be
by increasing the residence time of the system (reducing the ground -water flow rate).
gd fliqLaid phase iplar Carbon
) QmL
nd liquid phase activated carbon canisters (housed in 55-gallon drums) will be used to
Each canister (and associated piping) will be mounted on a steel skid base for ease
�up and will be utilized in series. The first unit will be used for primary effluent
water from the stripping unit will pass through the first canister removing any
remaining in the discharge stream. The second canister will be utilized as a backup
A ground -water sample port will be installed between the first and second carbon
te treatment efficiency of the primary canister and to monitor for breakthrough.
I breakthrough, the primary canister will be replaced by the secondary canister and
be installed in place of the second unit. An extra canister is planned to be on site
33

will also be included at the end of the second carbon unit to monitor the effluent stream
A -water discharge.
#1 # # W
the carbon units is 12 psi maximum. This should prevent damaging the carbon units or the
imp.
34

6.0 SYSTEM MONITORING AND MAINTENANCE
yAem _$tartu �and Bgalanc�in
the remedial staging area has been constructed, electrical power service has been provided, and
ur ground -water recovery wells installed, a pilot start-up of the ground -water recovery and
ent system will be performed, The removal efficiencies of hydrocarbons from the ground water
;ured by sampling the influent, effluent after stripping, and effluent after carbon polishing.
�Iy 500 to 1000 gallons of ground water will be recovered and treated during the start-up.
,,round water will be stored in the above ground clarification unit until analytical test results
. the effluent concentrations are within the limits specified by the discharge permit. The
ns reported by the laboratory, combined with ground water recovery flow rates observed,
used to calculate air VOC emission rates and projected hydrocarbon breakthrough rates for
)olishing units. The influent/effluent samples will be analyzed for dissolved petroleum
constituents by EPA Method 602 (including xylenes, methyl tert-butyl ether, isopropyl
.hylene dibromide).
tion trench excavation has been completed and the soil treatment stockpile has been
a vacuum will be applied to the stockpiled soil. The rate at which VOCs are removed will
I for compliance with the air emissions permit. Hydrocarbon concentrations in the exhaust
)e measured using an organic vapor monitor. In addition, a sample will be collected and
a State -approved analytical laboratory for TPH analysis (NIOSH 1501).
ruction of the ground water and soil collection trench system has been completed,
recovery and plume stabilization will be implemented in stages. Until the shallow aquifer
i steady state condition, ground water from only one of the two trench sections will be
prevent overloading the treatment system. Once flow rates from the first trench stabilize,
r will be recovered from the second trench section. After the shallow aquifer in the
cinity of the collection trench system has stabilized (approximately 2 weeks), a vacuum will
) each trench section and the recovery wells. Adjustments will be made based on the
iisits during system balancing. Once the system is balanced and is operating on a steady
35

0
basis, an initial status report detailing system performance and operational statistics (flow rate from each
extraction point, total throughput, maximum influent concentration, measured effluent concentration,
etc.) will be provided to document current system performance.
6= PedoMlance Monitoring and Eyaluation
Soil and ground -water samples will be collected from across the site and analyzed for petroleum
hydrocarbons to establish a baseline from which to monitor concentration reductions and plume
stabilization. Prior to system start-up, ground -water elevations and samples will be obtained from all
ground -water wells at the site. Laboratory analysis for dissolved hydrocarbon constituents by EPA
Method 602 (including xylenes, methyl tert-butyl ether, isopropyl ether and ethylene dibromide) will
be performed for all samples collected. To monitor petroleum hydrocarbon concentration fluctuations
as a result of remedial efforts, ground -water samples will be collected from wells MW-4, MW-5, MW-
6, MW-7, MW-8, MW-10, MW-12, MW-13, MW-14, B-18, and C-9 and analyzed for dissolved
hydrocarbon constituents by EPA Method 602 (including xylenes, methyl tert-butyl ether, isopropyl
ether and ethylene dibromide) on a quarterly basis. Ground -water influent samples will be collected
prior to entering the treatment system and analyzed for TPH by Methods 5030 and 3550 on a monthly
basis to monitor for changes in hydrocarbon composition as remediation progresses.
Initially during start-up and balancing of the ground -water treatment system, influent and effluent
samples will be collected and analyzed by EPA Method 602 on a weekly basis for the first 3 months.
Thereafter, influent and effluent samples will be collected and analyzed by EPA Method 602 on a
monthly basis. The average flow rate and total volume of ground water treated will be recorded during
each site visit.
around the collection trench area and recovery wells, prior to implementation of soil vapor recovery
operations. These samples will be analyzed for benzene, toluene, ethylbenzene, and total xylenes,
(BTEX) in addition to total recoverable petroleum hydrocarbon (TRPH) concentrations. Approximately
12 months after system start-up this sampling event will be repeated.
36

One soil sample for every 100 cubic yards of soil stockpiled will also be collected and analyzed for
BTEX and TRPH concentrations prior to system start-up. Each quarter, after start-up of the soil
stockpile treatment systen�, samples will be collected and analyzed for BTEX.
Pttroleum hydrocarbon concentrations emitted from the treatment system will be monitored by both
field OVM measurements and analytical laboratory analyses (GC-FID) on a weekly basis for the first
6 weeks of system operation. The stack emissions will be monitored weekly utilizing a field -calibrated
PID and by laboratory analyses every 2 weeks for the remainder of the first quarter. During the second
quarter, air emissions will be monitored by a PID every 2 weeks and by laboratory analysis once a
month. The emission rates will continue to be monitored every 2 weeks by a PID and once each
quarter for the duration of remedial operations at the site. Monitoring data collected during the first
quarter of operation will be reviewed to evaluate if the corrective action program is performing as
planned, and an initial system status report will be submitted within 16 weeks of system balancing.
Subsequently, quarterly reports will be submitted that contain the results of routine monitoring and
maintenance activity. Selected ground -water monitoring wells will be monitored monthly for water
levels to provide data for evaluating the recovery influence of the extraction wells.
Once petroleum hydrocarbon concentrations for soil and ground water fall within State approved
standards, a report will be prepared describing the results of corrective actions and provide justification
for discontinuing corrective actions. If hydrocarbon concentrations level off before achieving the
established performance, a petition for a variance from standards may be submitted.
6.3 Qgan-.Up ALtginmenl DetertninaLion
In general, confirmatory soil borings and, in some cases, soil gas samples may be required to determine
when clean-up has been attained. Several key criteria should typically be evaluated for in determining
when a system can be shut down, in addition to the State regulatory requirements for soil and drinking
water: (1) potential for exposure as determined from the contaminant mobility and exposure (risk)
assessment; (2) background levels of offsite contaminants and naturally occurring inorganics; (3) when
concentrations approach an asymptotic level; (4) when a potential for attenuation through processes of
natural biodegradation, volatilization, adsorption, and dispersion are present; (5) and management
37

considerations such as the classification of the ground water or aquifer based on local use and economics
(State discretion).
Cleanup will be considered complete when either the concentrations of petroleum compounds in the soil
Ad ground water at the site have been reduced to at or below acceptable State levels and/or until it is
no longer technologically nor cost effective to continue remedial actions. Compliance monitoring and
reporting will be necessary to demonstrate that progress is being made and criteria have been met.
Fluctuating water tables can remobilize residual hydrocarbons temporarily increasing dissolved
hydrocarbon concentrations. These circumstances are anticipated and will be accounted for during the
preparation of closure documentation.
6.3.1 Residuals Measurement
Approximately 12 months after the start-up of remedial operations, a second round of ground-water/soil
sampling and analysis will be performed. Ground -water samples from all wells at the site will be
analyzed for dissolved petroleum hydrocarbon constituents by EPA Method 602 (including xylenes,
methyl tert-butyl ether, isopropyl ether and ethylene dibromide). Soil samples will be obtained from
locations adjacent to the points at which the baseline soil samples were obtained and analyzed for
benzene, toluene, ethylbenzene, total xylenes, and TRPH concentrations. This annual sampling
program, in addition to the quarterly sampling routine outlined in Sections 6.1 and 6.2, will be used
to help evaluate the effectiveness of the remedial efforts expended to control plume migration and
remediate the areas identified with highest concentrations of petroleum hydrocarbons. A generalized
Implementation Schedule for the construction and start-up of the proposed soil vapor extraction/ground-
water treatment systems is presented in Table 3.
10
38

Table 3. hnplementation Schedule
Colonial Pipeline Company
(Charlotte Delivery Facility)
7524 Kenstead Circle
Paw Creek, North Carolina
Remediation Task Description
Length o
Implementation
Vendor/Contractor Selection and Permitting
20 Days
Construction of Remedial Staging Area
25 bays
Install and Packer Test .Northern Recovery Wells
10 mays
Install Free -Phase Product Recovery Well
5 Days
Prepare Soil Stockpile Treatment Area
10 Days
Install Trench Dines to All Recovery Wells
10 mays
Install Ground-WaterTreatment System and Conduct a Treatment
Performance Evaluation Using Bedrock Recovery Wells
15 bays
Ground -Water Recovery Well and Treatment System -Up
3 Days
Construct Ground -Water Collection Trench System, Add Trench
Sons to Stockpile Area and Construct Venting System
25 Days
Soil Stockpile Treatment Start -Up
2 bays
Collect Ground -Water Samples From All Recovery Wells, Onsite
Monitoring Wells, and Collection Sumps For "Laboratory Analyses
5 Days
Collect Baseline Soil Samples From inside Containment Area,
Adjacent to Free Product Recovery Well, and' Adjacent to Northern
Recovery Wells For Laboratory Analyses
5 Days
Soil Vapor Extraction/Ground-Water Collection Trench System Start-
up and Balancing
15 Days
Total System Monitoring/Adjustment/Maintenance After -up
20 Trays
Quarterly Sampling and Reporting, Evaluate the Need for Pneumatic
Fracturing/Air Recharge Points
110 Days Each
Annual Performance Evaluation and Reporting
35 Days Each
Days Represent Working Days
3

C.
t
State of or*-(froom
nvironmeealth, and Natural£uc
Division cal £ivironr ental Management
51 North Salisl rry Street e Raleigh, North Carolina 27604
James 1. Martin, aver r °� Georg I' Everett. l�'l,.l?
William W. C obey, Jr., Seereta! .a -m° rrea t rr
November 18, 1991
T. H. Norris, VP - operations Subject: NPDES Permit Applilcation
Colonial Pipeline Company NPDE S Permit No.NCO0310311
Po Box 87
Paw Creek; NC 13£7 Charlotte Delivery -Facility
Mecklenburg County
Dear Mr. Norris
This is to acknowledge receipt of the following; documents on October l 1991 :
Application Form
Engineering Proposal (for proposed control facilities),
Request for permit renewal,
Application Processing Fee of $400.00,
Engineering Economics Alternatives Analysis,
Local Government Signoff,
Source Reduction and Recycling,
Interba in Transfer,
O}ther ,
The items checked below are needed before review can begin:
Application Form` ,
Engineering proposal (see attachment),;
Application. Processing Fee of
Delegation of Authority (see attached)
Biocide Sheet (see attached)
Engineering Economics Alternatives Analysis,
Local. Government Sign off,
Source Reduction and Recycling,"
Interbasin "transfer,'
Other
RrGIONAL, OFFICES
Asheville Fayetteville Mooresville lzalc igh Washington Wilntingi one Winston-Salem
704/751 6208 919/486-1 41 704/663 1699 91917 3-2314 919/9466481 919/395.3900 919/ 9t 7007
Pollution Prevention !'ays
11'':O, Box' 2`9535, Raleigh, North Carolina 27626 0535 1,elej)hone 919�733.7015
An Equal Oppc)rtuiiityoff'-krrt},ttive" AcLion Enilfloyer

LpPlication is not- made complete within thirty (30) days, it will.
I to you and may be resubmitted when complete.
>lication has been assigned to Jule Shanklin
�� IL W "A j- L IZ- � llt� k- �� �A� - - - - - - -
tmendations, questions or other information necessa
application.
of this letter, recruestina that our Regional Offic�
discharge. If you have any questions regarding this applications,
please contact the review person listed above.
Si, rely,
M. le Overcash, P.E.,
CC. Mooresville Regional Office

To: Permits and Engineering Unit
Water Quality Section
Date: November 4, 1991
NPDES STAFF REPORT AND RECOMMENDATIONS
A"TIONS
County: Mecklenburg
Permit No.: NCO031038
RO No . • 91-224
PART I GENERAL INFORMATION
1. Facility and Address: Colonial Pipeline Company
Post Office Box 87
Paw Creek, North Carolina 28130
2. ]date of Investigation: October 30, 1991
. Report Prepared by;: W. Allen Hardy, Environmental Engineer I
4, Persons Contacted and Telephone Number: J. U. Quakenbush,
Chief Operator, (7 ?4) :392-3546
. Directions to Site: From the intersection of N. C. highway 27
and S. R. 1784 in Parr Creek travel east on S. R. 1784 to S. R.
1765. Turn left on S. R. 1765 and gavel approximately 0.1
mile to the first paved road on the left. The facility is
located at the end; of this paved road.
6.discharge Points) List for all discharge points:
Latitude: 350 171 1711
Longitude: 80 56' 8811
Attach. a USCS map extract and indicate treatment facility
site and discharge point on map'.
US S Quad No.: F1 aSW USGS Quad Name: Mountain Island
Lake, NC
7. Size (land available for expansion and upgrading): The land
available for expansion and upgrading appeared to be somewhat
limited, however the property boundaries were not identified.
. Topography (relationship to flood plain included): The
topography is gently rolling with slopes from -'9 .
9$ Location of nearest dwelling: The nearest dwelling is
greater than 500 feet from the pond and discharge location.
10. Receiving stream or affected surface waters: Unnamed
tributary to Gum Branch

PPPPPFF_
Page Two
a Classification; C
b. River Basin and Subbasin No.: Catawba 03-08--34
C. Describe receiving stream features and pertinent
downstream uses. The receiving stream is approximately
3-8 feet wide with a small flaw at the time of
.inspection. The receiving stream flows through a low
density semi --rural community with the downstream uses
typical of glass C waters."
PART II - DESCRIPTION OF DISCHARGE TREATMENT WORKS
1. Type of wastewater: 0 Domestic
100 Industrial
a. Volume of Wastewater. MGD (Design Capacity)
b* "hypes and; quantities of industrial wastewater: *The
wastewater is generated from stormwater that falls into
the manifold yard and is collected in a french drainage
system. Petroleum constituents are introduced into the
stormwater from any free phase petroleum that enters the
underground drainage system in the 'evert of a spill and
from a washdown slab. The amount of wastewater is
usually dependent on the precipitation rate.
C. Prevalent toxic constituents in wastewater: The toxic
constituents are those expected from Unleaded Gas, No.
Fuel oil and Kerosene stored on site.
d Pretreatment ]Program (POTWs only): _ N/A
in development approved
should be required not needed
. Production rags (industrial discharges only) in pounds per
day: N/A
a. Highest month in past 12 months: lbs/day
b: Highest year in the past 5 years: lbs/day
3. Description of industrial process (for industries only) and
applicable C 'R Past and Subpart: A
. Type of treatment (specify whether proposed or existing): The
existing treatment' consists of an oil/water separator followed
by a pond 'which receives stormwater from several tributaries.'
The pond is actually being used as an emergency oil/water
separator.'
5. Sludge handling and disposal scheme: Sludge accumulates in
the oil/water separator at a rate such that cleaning only
needs to be done every five to ten years. When cleaning is
done the company contracts a licensed waste disposal facility
for ultimate disposal;

Pace Three
6. Treatment plant classification (attach completed'rating
sheet);: Class T
7. SIC Code(s') : 5171
Wastewater Codes)
Primary: 39
Secondary:
Main 'Treatment Unit Code: 53000
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction grant
Funds (municipals only)? No
2. Special monitoring requests`. No
3. Additionaleffluent limits requests: No
4. Other: No
PART IV -- EVALUATION AND RECOMMENDATIONS
The applicant., Colonial Pipeline Company, has requested that
the permit which allows ;the discharge of treated industrial
wastewater be renewed. The wastewater is produced from stormwater
events that occur in the manifold yard, an adjacent washdswn slab
or from spills.
It is recommended that the permit be renewed to include any
monitoring deemed necessary by the Technical 'Review Group.
Signature of Report stet'
-u
Water Quality Aeg6knal Supervisor
}
bate

4 `lYy �j 4✓fir} � ��✓µ� -v'Y,,
Graven Z Pit
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ir: �^r-`v�i„{�Q ,`,� ",,✓ '�1v. k` ����� ""`",,�` �,�l esti+c�" . r ``. 'y'`•''a l � .
,. ., J". @ . ♦ • s i w "P F `.`;i S ... i ,,._ a *, „ _# a iT% s" ead
woo
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� a� ' � #S ,p
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bl
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t � �
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R+=-
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p } 1
iRA
rio i r i/rf 4r
t Qj t ^^'�I(Flt,
{ � �", \ e 5 \ �1 F `�. r *,� •hl"$ �v�b;'t, O�C --�'$ p�.% ` .FF d � '��``'�.` �� };Pr � � .� ;`� ��
1 {f
y r V
`yt z tf 4l�, �'�., �.- $� r ``�—'"'-'"'l' `••�-v �� *"`w.` I ( *"''r�, 't�' t q -` �-✓ . ��, .', tt�t9 t fE.;� i4` t�z ���' (S r�Ft7 =� ``f.M � j
i,;o
t(iI
(CHARLOTTE
7' 0" t CIA ;5(y5 4854 It/
4854 tl N
SCALE 1:24 000 1 MILE
0 _ ..
1FEET
C? 1 Chi 2
�- --- � 1 KILC7ME7ER
CONTOUR INTERVAL. 10 FEET
NATIONAL GEODETIC VERTICAL DATUM OF 1929

NPD S FACILITY A
UPDATE OPTION rRXID 5NU KEY NCO
DATA
REGIC
7NTY> MECKLENBURG 03
(REQUIRED)
,D MOUNT HOLLY ROAD
iW CREEK S'T NC ZIP 28
-0/01/91AMOUNT: 400.00
iARGE T.H. NORR I S
t,—REISSUE> R
ASSIGN/C t
03/31/92
( P76) 9= (GP13, 34, 30, 52) 0= (NOFEE) THIS/C 37 39 CONBILL
k ENTER DATA FOR UPDATE
C)��� f � F Khr1t #7sr9
�r ;1 t- ,
X
TURNED: € r r cs E% C t v s ,n u ra �e6t%� .ercvt.E� F Flr a,a,

s
MO
I c t S
ra
lei
North Caroba Department of Env
C�
l
Health, and Natural Resources

State
Department of Environn
Division o
512 North Salisbury S
James G. Martin, Governor
William W. Cobey, Jr., Secretary
Oc
Mr. T.H. NORRIS
P.O. BOX 87
.arolina
i and Natural Resources
d Management
North Carolina 27604
George T. Evere
L
3, 1991
Subject: Application No. NC
nT nNIT A T DTDV't '
Mecklenburg Count,
Dear Mr. NORRIS:
or this project prior to final action by the Division.
Sincerely,
Dale Overcash, P.E.
pervisor, NPDES Permits Group
Tooresville Regional Office
Pollution Prevenrion Pays
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

VIA FEDERA
C department of Environment, ilea
Permits and Engineering Unit
Division of Environmental Manage
512 North Salisbury Street
Raleigh, NC 27604
Re. NPdES Permit Renewal Applic
NPDES Permit NumberNCO0310
Charlotte Delivery Facility
Mecklenburg County
Dear Sir or Madam:
omplted and signet
Short Form Cj submi'
ludge Management Pl',
acilty Grading Pl.a
r the payment of t
e
4-'" - 4- r+.-1 .tip.. , - i i .
1n"
S ptc tuber 0" ' 1 1
EXPRESS
th, and Natural Resources
tit
ion
Cn
items for the renewal of the
r
_plicate
>d in tripl%
M
cased facility grading plan shows the location o

NC DEHNI
September 30, 1991
Page
If you have any questions or reed any additional information, 1 ca
be reached at 404/ 41-2491 or at the mailing address on the`bott
of the letterhead.
Sincerely,
Per I. Sisk
PDS pds
Enclosures
cc: T. W. Cervino w/enclosures
R. F. Calupca
D . C . Baugh
J. H. Quakenbush w/enclosures

91
iment, Health, and Natural Resources concerning the disl
dredged material.

Permit No. NC C31
STATE OF NORTH CAROLINA'
DEPARTMENT OF NATURAL RESOURCES & COMMUNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT
P' E R M I` T
To Discharge Wastewater tinder The.
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General
Statute 143-15.1, other lawful standards and regulations promu'lgat
and adopted by the North Carolina Environmental Management Commiss
and the Federal. Water Pollution Control Act, as amended,
Colonial Pipeline Company
is hereby authorized to discharge wastewater from facilities locata
at
Charlotte Delivery Facility
on NCSR 176
Mecklenburg ;County
to receiving waters designated as an unnamed tributary to Gum Bran
in the Catawba River 'Basin
in accordance with effluent limitations, monitoring requirements,
other conditions set forth in Parts I, II, and III hereof.
This permit shall be effective April 1, 1987
This permit and the authorization to discharge shall expire a
midnighton March 31, 199
Signed this day of `larch 2, 1987
„s
w y
Paul Wilms, I3ire.ctor
Division of Enviroh4" I, *M nageme
By Authority of the Environmental
Management Commission

SUPPLEMENT TO PERT
Colonial Wipe;
Charlotte Deli
hereby authorized to.
Permit No, NCO031038
COVERSHEET
Company
Facility
III of this permit), and
Discharge from said treatment works into an unna
tributary to Gum Branch which is classified Clas!
waters in the Catawba. River Basin.
4 r
'P
411
+.a 4y
.419

During the period beginning on the effective date of the permit and lasting until expiration, the permittee
is authorized to discharge through outfall 001 stormwater and contaminated wastewater originating from
point sources including, but not limited to, bulk storage tank areas, product transfer areas, loading/
unloading areas, etc. Such discharges shall be limited and monitoring by the permittee as specified
below:
ffluent Characteristics Discharge Limitations
K /day (lbs/day) Other UnijL_L� pectf�) Measurement SaTple **�Ie
Dai Av Daily Max. Daily Av2. Daily Max. Fjr 2.�e n c� j1pe Location
Flow
Xonthly E 3 t i ma �,, e E
Oil & Grease 30 mg/I 60 mg/I MonthLy Grab E
,Q
Monitorinci will be conducted during normal working hours.
T h i s
,�Jioposes no limitation on the discharge of stormwater runoff uncontaminated by any industrial or
commercial activity and not discharged through any oil -water separator or other treatment equipment or facility.
Samples taken in compliance with the monitoring requirements specified above shall be taken at the following
location (s) . The nearest accessible point after final treatment but prior to actual discharge to or mixing with
the receiving waters.
Z
E - Effluent
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be C) Z
monitored monthlyat the effluent by grab samples. �­) 0
There shall be no discharge of floating solids or visible foam in other than trace amounts.

jWCUMV1 4. 1q86
NPDFS SFAU A]
>101enbu
NPDFS normir
GENERAL !NFORMATIM
lity and Address: 00
Lanox Towers
3390 Peachtr
Atinnta, Gec
of invescigation: 10/29/86
rt Prepared By: J. Thurman Horne,
was Contacted and Telephone Number:
actions to Site: From the inersecl
travel east on S.1
Turn left (north)
mile to the first
is located at the
:harge Point - Latitude: 35' 17
Longitude: 80' 56
ach a USGS Map Extract and indicate
aharge point on map.
S Quad No. F15SW
e (land available for expansion and
The existing site encompasses app
adequate land available for furor
ography (relationship to flood ply:
) � 111,1 1?'N­ 1),,VV 1, 0 NS
my
0031038
1�31wsz�
A, N.E.
30326-1108
Ted Woods
/392-8610
E N. C. Hwy 27 and S.R. 1784,
4 approx. 0.1 mile to S.R. 1765.
R. 1765 and travel approx 0.1
)ad on tne IeIL.
phis paved read.
at plant site and
ng)-.
The existing f
t appear to be in proximity to any flood plain.
,f nearest dwelling: None within 500 feet,
stream or affected surface waters: An unnamed tributary to
ilassification: C
tiver Basin and Subbasin No.: 03-08-34
)escribe receiving stream features and pertinent downstream L
Shere are no known users for any reasonable distance downstyc
nth than for agriculture and secondary recreation. The po:
of discharge is approx. seven (7) miles above the confluence
the Catawba River which is Class WS-III waters.
ZRIPTION OF DISCHARGE AND TREATMENT WORKS
astewater: 0% Domestic
100% Industrial (average daily)
e of Wastewater: .0045 MGD
and quantities of industrial wastewater:
zstewater consists of storm run-off which is containinatef wi
pillage of petroleum products (gasoline, diesel fuel,

evade nt toxLL constituents in a
ut.i`.0 ati'le`.:nt Program f PO'.(;, s on l t
tion rates (industrial disnhary
rt. ion of 06.';triA process (;`c
,rt=aud Subpar:: None.
)f treatment specify whether to
s per
ng
ling and disposal scheme:
ant classification: C:la
l.tdring requests: None
e>fi l.ue fay limits requests,
e'
r comn nded that the perp
14 Al
r: Olt
0 in pounds n/A
3trfeas`on ) nad ;arlaizccable
or existing):
water se paartaz:rs installed in
moved and stc red in holding
m they second viQwater
ream.
ud e is generated.
truc.tion Graits funds? N/A
renewed with standard. limitations
requirements a nPla
r 3'
Si`nature of yePOtF
oil

' a$ Y'x;''�' # It v. r �C , . E a � �✓ 1/ ' �'� � 1 i� S
Idol
� w
•
»
U
r Yr�e c'K
y a At{�# � � t � im ✓ � � t���� a�.� it • t� l `. ,��
tt` ;�. 1 1 yr' <:" • t,�# �* � * •+ Y • * 1� �. ° i
X JI yy _ A CiA% C w
is {t 4 t
ar � Lw � , ✓ �� � {f, C six /�
�c

C01011i"I Pipelirle comp"Imy
CHARLOTTF DELIVERY FACLUTY - NPI)ES PERMIT
C,.-,lcular-iori of Pond Average Daily Discharg ;e Flo%;
Rate
Methodology
- SCS Technical Release No. 55
Assumptions
- Curve Number (CN) = 77
- Monthly precipitation to be equally distributed
over 6 storm
events
- No evaporation from pond
- Pond level.
remains constant (i.e., no net storage of runoff)
Data:
- Watershed Area Draining to Pond = 329.7 acres
- Average Mont sly Rainfall from NO AA based on records for 1943
- 1982 period
Average
No.
Average Rainfalll Runoff2
Monthly3
Flow Rates
of
Rainfall Per Storm Per Storm
Runoff
Month Days
(Inches) (Inches) (Inches)
(Inches)
Gal/Mo4 MGD5
Jan 31
3.81 0.64 0.0006
0.0036
32,200 0.0011
Feb 28
3.93 0.66 0.0013
0.0077
69,000 0.002
Mar 31
4.35 0.73 0.0056
0.0338
302,800 0.009;
Apr 30
3.26 0.54 0
0
0 0
May 31
3.56 0.59 0
0
0 0
Jun 30
3.94 0.66 0.0013
0.0077
69,000 0.002
Jul 31
4.78 0.80 0.0129
0.0772
691,200 0.022,
Aug 31
4.58 0.76 0.0084
0.0504
450,900 0.014
Sep 30
3.36 0.56 0
0
0 0
Oct 31
2.96 0.49 0
0
0 0
Nov 30
2.66 0.44 0
0
0 0
Dec 31
3.69 0.62 0.0002
0.0010
9,100 0.000
1,624,200 0.052
Calculations:
(1) Rainfall Per Storm (in.) = Average Rainfall
Per Month
6
(2) Runoff
Per Storm = (P 0-2S)2
P + 0.8s
where P Rainfall Per Storm
(in.)
A-
S 1000 - 10
1000 z 99
-T7-
Runoff Per Storm fP - 0.2(2.99)12
[,P
­�+
0.59712
[P + 0.8(2-99)1
2�.39

(Tcalcowiltl Pipeline Company
(3) Monthly Runoff (in.) = Runoff Per Storm X 6 Storms
(4) Gal/Month = Monthly Runoff (In.) X 329.7 an. X 43560 it- X f ' t
ac 12
7.48 gal
X j3- = Monthly Runoff (Ia.) X 8,952,146
(5) MGD Gal/Month
Days/Month X 100
Average Daily Volume: 1 624 200 gal. 4,450 GPI)' or 0.0045 MG1
365 -----
47
LOV
RJC:njw
11/11/86 2

LOAD ALLOCATION
'
.1st.
os
Permit 0 2>1 99 Pipe No.:
00 County:'u
Design Capacity
) : Industrial (" of Flow): 100 ibmest c ( of Flow):
Z-
1 iving Stream: t� *uc �* Class:
s
Sub -Basin:
R"&j (please attach) estor: tE' l�gKk_4 i Regional Office
s
�(Guldeline
limitations if applicable, are to be listed
on the beck of this form.)
Design.:
2
Drainage Area (mi ) : ;
Avg. Stre f law (cf,s )
7Q10 (cf )
)
Winter 7Q10 (cf )
30Q2 (cfs
Location of D.O.
I
minimLn (miles below o tfall) :
Slope (f )
V city (fps).`
Kl (base �-, per day):
K (base e. r>er day):
•
•
cs
�r.q
i. a .�
Effluent .'Dnthly
:S Characteristics Lverage Comments
r
nt.

NPDES FACILITY AND PERMIT DATA
UPDATE OPTION TRXID 5NU KEY NCO031038
PERSONAL DATA FACILITY APPLYING FOR PERMIT REGION
FACILITY NAME> COLONIAL PIPELINE - PAW CREEK COUNTY> MECKLENBURG 03
ADDRESS: MAILING (REQUIRED) LOCATION (REQUIRED)
STREET: 3390 PEACHTREE RD., NE STREET: OLD MOUNT HOLLY ROAD
CITY: ATLANTA ST GA ZIP 30326 CITY: PAW CREEK ST NC ZIP 28130
TELEPHONE [phone] DATE FEE PAID: 1.1/13/86 AMOUNT- 50.00
STATE CONTACT> SHANKLIN PERSON IN CHARGE R. J. COLE
1=PROPOSED,2=EXIST,3=CLOSED 2 1=MAJOR,2=MIN OR 2 1=MUN,2=NON-MUN 2
LAT: 3517150 LONG: 08056050 N=NEW,M=MODIFICATION,R=REISSUE> R
DATE APP RCVD 11/13/86 WASTELOAD REQS 11/17/86
DATE STAFF REP REQS 11/17/86 WASTELOAD RC VD 01/08/87
DATE STAFF REP RC VD 12/17/86 SCH TO ISSUE 03/02/87
DATE TO P NOTICE 01/16/87 DATE DRAFT PREPARED 01/05/87
DATE OT AG COM REQS DATE DENIED
DATE OT AG COM RC VD DATE RETURNED
DATE TO EPA DATE ISSUED 03/02/87 ASSIGN/CHANGE PERMIT
DATE FROM EPA EXPIRATION DATE 03/31/92
FEE CODE ( 4 ) 1=(>10MGD),2=(>IMGD),3=(>O.lMGD),4=(<O.lMGD),5=SF,6=(GP25,64,79),
7=(GP49,73)8=(GP76)9(GP13,34,30,52)0=(NOFEE) DIS/C 37 39 CONBILL
COMMENTS: PERMIT BECOMES EFFECTIVE 04/01/87
MESSAGE: ENTER DATA FOR UPDATE

Permit No. NCO031038
1111Q\'P7% '.
STATE OF NORTH CAROL.INA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
PERMIT
TO DISCHARGE WASTEWATER UNDER THE We DEPT. r, � � t _ '
- AN 2 6 Q9
In compliance with the provision of North Carolina General Statute 14-1.1,
other lawful standards and regulations promulgated and adopted by the North Carolina B W i I
Management Commission, and the Federal Water Pollution Control Act, as amended,
Colonial Pipeline Company
is hereby authorized to discharge wastewater from a facility located at
Charlotte Delivery Facility
7524 Renste d Circle
Paw Creek
Mecklenburg County
to receiving waters designated as an unnamed tributary to Clam Branch in the Catawba River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I, II, and III hereof.
This permit shall became effective
This permit and the authorization to discharge shall expire at midnight on August 31, 199E
Signed this day'
George T. Everett, Director
Division of Environmental Management
By Authority of the Environmental Management Commission

Permit No. NCO031038
SUPPLEMENTF,
TO PERMIT COVER SHEET
Colonial Pipeline Company
is hereby authorized to:
1. Continue to operate existing stomwater treatment system consisting of an oil/water separator
followed by a bolding pond `located at Charlotte Delivery Facility, 7524 I enstead Circle, Paw
Creek, Mecklenburg County (See Part III of this Permit), and
2, After receiving an Authorization to Construct from the Division of�Environmental Management,
make y changes needed to meet the conditions of this permit,
3. Discharge from said treatment works at the location specified on the attached map into an unnamed
tributary to Crum Branch which is classified Class C`ters in the Catawba River Basin,

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A. (). EFFLUENT IMITATIONS AND MONITORING REQUIREMENTS FIN Permit No. NCO031038
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from
outfall(s) serial number 401- FACILITY OIL/WATEROIL/WATER SEPARATOR DISCHARGE. Such discharges shall be limited and monitored by the
permittee as specified below:
Effluentgharac g Istic. t
Y Units s eelfv Measur2ment Sam i * J31 kL
.-An- W1Y Mcrae` M .1 2ailya . Eresuency
Flew*" Weekly Instantaneous E
Oil and Grease 45.0 mg/I 2/Month Grab
TS(Total Suspended Solids) 45 rng/I 2/Month Grab E
Turbidity 2/Month Grab E
Acute Toxicity"" * r * * * Grab E
Organics""" Grab E
Lead******
Grab E
* SampleLocations: E - Effluent
Samples taken in compliance with the monitoring requirements specified above shall be taken at the following 1 ati (s). the nearest
accessible point after final treatment but prior to actual discharge to or mixing with the receiving waters.
Monitoring will be conducted during normal work hours.
** All volumes of wastewater leaving the facility shall be monitored. If continuous flow monitoring is not feasible, theta the discharger shall
record the approximate time that discharge began and ended, along with the instantaneous flow at the time of effluent sampling.
This Permit imposes no limitation of the discharge of storin water runoff uncontaminated by any industrial or commercial activity and not
discharged through any oil/water separator or other treatment equipment or facility.
* * The discharge shall not cause the turbidity of the receiving water to exceed 50 NTU. If the turbidity exceeds these levels due to natural
background conditions, the discharge level cannot cause any increase in the turbidity in the receiving water.
**** Acute Toxicity (Daphnid 48 hour) Monitoring, Episodic, See Part III, Condition D.
***** Monitoring shall be conducted during the first five discrete discharge events after the effective date of this Permit, and then on an annual
basis thereafter, with the annual period beginning January of the next calendar year. The annual test must be performed and reported by June
30. If no discharge occurs by June 30, notification must be made to the Division by this date, and monitoring must be performed on the next
discharge event for the annual monitoring requirement. NOTE, see also CONDITION E.
* * * * * See Part III, Condition E.
The pH shall not be less than 6.4 standard units nor greater than 9.0 standard units and shall be monitored 2/month at the effluent by grab
samples.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

1
1DVfVTW'V'KAVXP1rQ'=N Permit No NC0031038
outfall(s) serial number OM - HYDROSTATIC TEST WATER (TAN
permittee as specified below:
Efflugat C ac st 'c.LkALAAY
�!
u
Flow"
Organics**"
ng until expiration, the Permittee is authorized to discharge m
ICI ). Such discharges shut be limited and'monit by the
is
nits favecify, Measurement Barn `l 21V
SILK u a r� ..L L
Weekly Instantaneous E
Crab E
SampleLocations: E - Effluent (tank dike in)
Monitoring will be conducted during normal work hours. ,
** All volumes of hydrostatic test water leaving the diked area drain(s) shall be monitored. If continuous flow monitoring is not feasible, then
the discharger shall record the approximate time that discharge began ended, along with the instantaneous flow at the time of effluent
sampling
This Permit imposes no limitation of the discharge of storm water runoff uncontaminated by any industrial or commercial activity and not
discharged through any oil/water separatoror either treatment equipment or facility.
** Monitoring shall be conducted during each discrete discharge event after the effective date of this Permit.
**** See Part III, Condition E.
The pH shall not be less than .0 standard units nor greater than 9.0 standard units and shall be monitored each discharge event at the effluent
by grab samples.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Part Ell Pe it No. NCO031 38
D. Acute Toxicity Monitoring(Episodic)

F. Engineering Alternatives Analysis Condition
e permittee shall continually evaluate all wastewater disposal alternatives and pursue the most
environmentally sound alternative of the reasonably cast effective alternatives. If the facility is in
substantial non-compliance with the terms and conditions of the NPDES permit or governing rules,
regulations or laws, the permittee shall submit a report in such form d detail as required by the
Division evaluating these alternatives and a plan of action within.. sixty ( days of notification by
the Division

O)Ito�
A Carolina
and. Community Development
mental Management
Raleigh, North Carolina 27611
1, Governor March 2, 1987 R. Nul Wilms
es, Secretary CERTIFIED MAIL Director
RETURN RECEIPTREQUESTED
D
.
.line Company
,e Read, NE
30326
Subject: Permit No. NCO031038
Colonial Pipeline Company
Mecklenburg County
7dante with your application for discharge permit received on
... ... r w a ... .. . . . . . . _ v ^ a...,., — Vt In„L i&
Div
.arge.
gene d,
L may be required by the Division of Environmental Management or
.red by the Envision of Land Resources, Coastal Area Management
:herdFederal or Local governmental permit that may be required.
rave any questions concerning this permit, please contact M.
i, at telephone number 1 7 - 083.
Sincrµe:,
y R. Paul Wilms
Patrick, EPA
Pollution Prevention Pays
PO Box 27687,CanAtna 27611-7Tekphone 919- 3.701
An EquA Opportunity Affirtriadw

STATE OF
DIVISION 0
To Mischa:
NATIONAL POLLUTA
In compliance with the
;';Federal Water Pollution.
Colonial
:by authorized to discua�
Charlotte
0
Meck
i RiverBasin
Permit No. NCO03108
kO IN
AL MANAGEMENT
r under The
ELIMINATION SYSTEM>
trol Act, as amended,
aline Company
]delivery Facility
NCSR 1765
enburg County
ditions
set
forth in
farts I, II, and III hereof.
permit
shall be effective April 1, 187
permit
and
the authorization to discharge shell expire at
on < March
31,
1992
ed this
dad*
of March
2, 197"
iic* '0,;
§ t q
R. Paul Wilms, Director
Division of Environmental Management-
By Authority of the Environmental
Management Commission

SUPPLEMENT TO l
Colonial P:
Charlotte N+
reby authorized to;
i,Li ot: t is peri
Permit No. N 00314 8'
ER SHEET
any
cility
waters in the Catawba River Basin.

During the period beginning on the effective date of the permit and lasting until expiration, the permittee
is authorized to 'discharge 'through outfall 001 stormwater and contaminated wastewater originating from
paint sources including, but not limited to, bulk storage 'tank areas, product transfer areas loading/
unloading areas, etc. Such discharges shall be limited and monitoring by the permittee as specified
below
Effluent Characteristics [isarc Limitations Monitoring Requirements
K /da (lbslda Other Units Specify) * Measurement Sam le *Sam ale
Daily Avg aiax Gail a. Daily Maw. Fro uenc T e Location
Flow
Monthly Estimate
Oil & Grease 30 mg l 60 mg/1 Monthly Grab E
* Monitoring will be conducted during normal working hours.
This permit imposes no limitation on the discharge of stormwater runoff uncontaminated by any industrial or
commercial activity and not discharged through any oil --water separator or other treatment equipment or facility.
* samples taken in compliance with the monitoring requirements specified above shall be taken at the following
l ation(s) : The nearest accessible point after final treatment but prior to actual discharge to or mixing with
the receiving waters.
E - Effluent
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall b
monitored monthlyat the effluent by grab samples.
CO
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Part
Fero
foilloving schedule:
requirement.

>NTTORING AND REPORTING
. Representative Sampling
he sample represents.'
porting
onitoring results obtained during the previous
s111111PP •- 11 •
dress:
vision of Environmental Management
ter Quality Section
TN: Central Files
st office Box 27687
leigh, NC 27611`
initions
Act,. or "the Act": The Federal Water Pollution Control
t, also knew as the Clean Water Act, as amended, 33 U.S.C.
51, et. seg.
The "daily average" discharge means the total discharge
weight during a calendar month divided by the number o
s in the month that the production or commercial facility
s operating. Where less than daily sampling is required bar
is permit, the daily average discharge shall be determined::
the summation of all the measured daily discharges by
ight divided by the number of days sampled during the
lendar month when the measurements were made.'
The ""daily maximum" discharge means the total discharge
weight during any calendar day.,
15

cam. DEM or ision: means the Division of no
Management, Department Natural Resources and Communil
Development.
t
a

Test. Procedures
Test procedures for the
to the EMC regulations
and Regulation
Results
measurement
gets of this Pe
results
-ion-ation and
Such increa
m
t 136.
nursijan-
and time of samplings
were d; and
rmed the analyses.
tee
ny pollutant at theIcy
uently n required
lytical methods
ig of ether pollutants not required j
notification.
�tention
and information resulting from

GENERAL CONDITIONS
WAGEMENT REQUIREMENTS
. Change in Discharge
All discharges c harg ut o f (
n i i ran±
the EM of such changes. Following such notice, the permit
may be modifiers to specify and limit any pollutantsnot
previously limited.
Noncompliance Notification
The permittee shall report by telephoneto either the
central office or appropriate g o a office of the
division as soon as possiblebut in no case more than
hours can the next working day following the occurrence or
first knowledge of the occurrence of any of the following:
a. Any occurrencet the cater pollution control
facility which results in the discharge of significant
amounts of wastes which are abnormal in quantity nti. or
characteristic, such as the dumping of the 'contents of a
sludge digester, the known passage of a slug of
hazardous substance through the facility or any other
unusual. circumstances.
s Any process unit failure, due to known or unknown
reasons, that render the facility incapable of adequate
wastewater treatment, such as mechanical °o electrical
failures of pumps, aerators, compressors, etc.
C. Any failure f a pumping station, sewer line, of
treatment facility resulting in a -pass directly to
receiving caters without treatment of all or any portion
of the influent to such station or facility.
d Any time that self -monitoring information indicates
that the facility has gone out of compliance a.nc with its
NPDES permit limitations.
l

Persons jai such
file a written report
following knowledge
4
o`of this <permit.
&act
telephone sha
,erform within
: urren

Removed Substances
tee is rest
to prevent'
py means
i:.or retenti
R
Entry
nines shill allc
a ro sampie anydisc
, ^1 111d-

Transfer f ownership
This permit is not
if ication
Lice and opportu,
ble. In the event!
shall be torwaral
L
pert during its term ror causeincivaing, DuL nor.
sited to, the following:
a. Violation of any terms or conditionsof this permit,
b. Obtaining this permit by misrepresentation or
failure disclose fully all relevantfads; or
change in any condition that requires either a
temporary anent reduction or eliminationf the
authorized discharge.

5. Toxic Pollutants
Notwithstanding Part II - above, if a toxi
standard or prohibition(including an
compliance specified' in such effluent sta
Criminal Liability
s e--. �*, 4 A ami A 4—
ad.
Rights
suance of this permit does not conve,
112

eve abi.li ty
�-

:l OTHER. REQUIREMENTS
Irevious Permits
11 nrp.vinii.q Ri-AfA
ainaer rne LVar-ie nai roj-.LuT-anr.t z :ax c,a a arcs
,ern discharges from this facility.
)n
— —4»'': save "— ^
tee to the Dear
coval and uthori!
arator
D Chapter 90A of
a
t atme�t facilities.
Monitoring
w
.rds.
.ions Reopener
permit it odified or alternatively, revoked and
[ed, to comply with any applicable effluentguideline or
quality standard issued or c under Sections
(2)(c), and (d), 4 ( ) ( , and 307 ( of the Clean
Act, if the effluent guideline or grater quality standard
;ued or approved:
contains different conditions or is otherwise more
stringent than any effluent limitation in the permit; or
controls any pollutant not limited in the permit.
1 14

Fart ll]
Permit
F. Toxicity Reopener
This permit 'shall be modified, or revoked and reissued
incorporate toxicity limitations and monitoring require
the event toxicity testing or other studies conducted c
effluent or receiving stream indicate that detrimental
be expected in the receiving stream as a result of this
G. The daily average limitations for oil and grease stated
A. shall be deemed to have been exceeded if either:
a. the; arithmetic average of the analyses of all repre
samples 'taken during a calendar month by the permit
accordance with the monitoring requirements set for
exceeds:30 mg/l,'o
b. the analyses of any two representative grab samples
the State at least six hours apart during any conse
thirty day period each individually exceeds 30.0 mg
Each sample 'takers by; either the permittee or the Statei
presumed to be representative. However, clue to the var
N .. .: • M : a w. `. # ::. "
N : ii. . iF: is # .. !: .`. ! ! .: N • .. -
w + ! ## ! N w N !
N i
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r yt
It W
it
It

«
«
«
�ea:.m'a«
« «
it R •
« « «
« « « «
«
« «
Part III Continued
Permit No. NCO031038
taken by the permittee during a
on must be included in writing
g Report submitted in accordance
it, and must include the results
ample, and a written explanation
If any sample is so excluded,
lFif)Gii:.s;;as®�:eia4�.«ra4ci e>s i,.xl+.
ti : ` • k 11
/H
Lendar day. Should effluent sampling be done can more than one
Lendar dap during the month., the arithmetic average indicating
largest "daily maximum" concentration shall be reported on the
;;charge Monitoring Deport Form.
Jection of representative samples shall be 'required during
7iods of discharges. Should there be no discharge during, normal
!king hours, the permittee'shalll report "no discharge" for that
iorting period.
;'reported flow shall be the arithmetic average of the total
.me discharged on; each, of the 'sampling days during the reporting
°iod.flow may be calculated utilizing a flow recorder, rain
E e, or any other simliar device.
connection with submission of records ,and reports required under
.s permit, the perittee shall not be deemed to have waived such
. fle e against self-incrimination as may be offered under or by
Fifth Amendment of the United States' Constitution.

a
pppppp
'
?'m`.e,U. i!%Y .t C7P ry,. ns� Rr
a`5 ..�"i#` da ND EpwironrnwotM h4a.dinager
tnttx � .��' .,0P August 27, 1991
`;` VIA FEDERAL EXPRESS
Mr. Richard Eridgemari
North Carolina, Department of Environment, health,
and Natural Resources
Mooresville Regional Office
919 North Main. Street
Mooresville, North Carolina 28115
Re: May ;29, 1991, Compliance Evaluation Inspection
NPDES Permit No, NCO031038
Charlotte Delivery Facility
Mecklenburg County
Dear Mr, Bridgeman:
As requested, Colonial submits the following response to Mr. D. Rex Gleason's
August 5, 1991, letter concerning Mr. Steven jelly's Compliance Evaluation
Inspection of the above mentioned facility on May 29, 1991.
As stated in Mr. Kelly's inspection report, Colonial's treatment works are no
longer consistent with the description found in the current NPDES permit. A
brief description of the treatment works before and after the implementation of.
the TCLP hazardous waste regulations on September 25, 1990, is as follows".
Prior to September 25, 1990, Colonial's treatment system consisted of two
oil/water separators in series which treated tank "stingwater" and stormwater
drainage from the manifold yard (see attached sketch).
"Stingwater" from the facility storage tanks was pumped to the first oil water
separator, where it was treated, and piped to the second oil/water separator.
Stormwater that fell into the manifold yard was collected in a "french drain"'
system and piped to the second oil/water separator where it accumulated with the
tank "stingwater." :Both the tank "stingwater" and the manifold yard stormwater
were them pumped from the second oil,/water ,separator to an aerated lagoon. ,The
wastewater was treated in the lagoon and then sprayed onto a grassed field under
Colonial' Non-NPDES Spray Irrigation Permit Number WQ0004751x
Before September 25, 1990, Colonial's only contribution to the facility surface
impoundment above Effluent Point 001 was stormwater runoff. Colonial has
collected its monthly NPDES samples from the discharge pipe of the surface
impoundment.
After the. TC1P hazardous waste regulations west into effect on September 25,
1990, Colonial's tank "stingwater" could no longer be treated without a RCRA
permit because it contains benzene in concentrations above the hazardous waste
threshold of 0.5 ppm. Therefore, Colonial modified the layout of its treatment
,system and discontinued treating "stingwater" (see attached sketch. A
description of the modifications is as follows.

PPPFPP, colonial Pipeline Company
Mr. Richard Eridgeman
Pages
August 2, 1991
e"stinwater" is still piped to the first oil/water separator. It is then
V4 pumped to one of two 10,000-gallon, above -ground containers, The "stin water"
is periodically hauled off site for treatment,
Stormwater that falls in the manifold yard continues to be collected in the
french drainage system and piped to the second oil/water separator. The purpose
of the oil/water separator is to capture any free -phase petroleum that enters the
underground drain system in the event of a spill. Effluent from the separator
is discharged through an underflow outlet into one of the tributaries leading to
the facility surface impoundment. It is noted that the discharge wipe from the
separator is valved. Water is discharged from the surface impoundment through
an u;nderflow pipe to an unnamed tributary of Gum Branch.
Colonial's responses to several items mentioned. in Mr. Steve Kelly's May 29,
1991, NP ES Compliance Inspection Report are as follows.
The 'oil/water separator mentioned in the inspection report, which has an "pail
scum layer on "top" and is "not used at all," is the second ail/water separator
mentioned above which is used for the treatment of stormwater that falls in the
manifold yard`. Its discharge is regulated under the current NPDES permit.
Colonial has scheduled to have it cleaned.
The Chief Operator has been instructed to complete and sign both sides of the
monthly North Carolina Effluent Report in the future.
The sheen on one of the tributaries leading to the surface impoundment `appears
to have been a vegetative sheen as opposed to a petroleum product sheen. The
reason the inspector noticed an odor of fuel oil near the tributary was because
Colonial was receiving a delivery of fuel oil at the time of the inspection.
Since Colonial personnel have never had a problem collecting the monthly 7P3ES
samples at Outfall 001, Colonial believes that the outfall is accessible.
If you have any questions or need any additional information, I can be reached
at 404/841-2491 or at the mailing address on the letterhead.
Sincerely,
TWC PDS:pl
Attachment
cc: D, C. 8aughn
R. F. Calupea
T. T. Cervino (w/Attachments)
J. D. Quakenbush (w/Attachments)
Steve Kelly - Mecklenburg Cout3
i,
pvc-
ferry D. Sisk
DEP (w/Attachments)

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Ile
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r
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gg

coloulax rivellueo
OCT91 -I P11, 4 : 3
SLUDGE MANAGEMENT PLAN FOR CHARLOTTE RELIVE Y__F. C L T"
Colonial's treatment works at its Charlotte Delivery Facility
consist of one oil/water separator and a retention pond which acts
as a sedimentation basin and an emergency oil/water separator.
'he;oil/water separator has been designed to capture any refined
petroleum products that may be present in the wastewater flowing
through i 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 self-operating and
seldom requires maintenance.
Sludge accumulates on the oil/water separator floor, but the sludge
accumulation rate is such that it needs to be removed only once
every five to ten years in order to ensure proper operation of the
oil/water separator. Since inflow to the oil/water separator
occurs sporadically, the cleaning of the oil/water separator 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 North Carolinapermitted
waste transporter. Since the oil/water separator is cleaned
infrequently, an appropriate transporter and disposal facility are
selected just prior to cleaning.
Although sediment accumulates at the bottom of the facility
retention panel, 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, Health,and Natural Resources concerning the disposal
of the dredged material.

.� +• + <� VWV
September 30, 1991
w, =,roc; t_ ,. VIA F EXPRESS =ec, • .r .. . we
NC Depa ent of Environment, Health, and. Natural Resources
Permitsrnd Engineering Unit
Division of Environmental Management
12'North Salisbury Street
Raleigh, NC 27604
Re: NPDES Permit Renewal Application
NPDES Permit Number NCO031038
Charlotte Delivery Facility
Mecklenburg County
Dear Sir or Madam:
Please find enclosed the following items for the renewal of the
above mentioned NPDES permit:
1. Completed and sied NPDES Permit renewal application
(Short Form C) submitted in triplicate
2. Sludge Management Plan submitted in triplicate
. Facility Grading Plan submitted in triplicate
. Colonial Check' Number 0172062 in the amount of $400.00
for the payment of the' DES Permit renewal processing
fee
Please note that Colonial's facility treatment works are not
correctly described in its current NPDES permit. The actual
treatment works are as fllo s.-
a. An oil/water separator treats discharges from the
washdo n slabs and the underground drainage j system
located in the gravelled manifold area.
b. A facility retention pond serves as a sedimentation basin
and an emergency oil/water separator in the event of a
petroleum spill. The pond was constructed with an
underfow outlet designed to prevent the discharge of any
free product that may enter the pond.
The enclosed facility grading plan shows the location of these
its.
Colonial believes the NPDES monitoring point (Outfall 001) should
continue to be the outfall from the retention 'pond discharge pipe.

w
C.W. Crider
Colonial Pipal n
Pax► Creek, North Carolina 28130
SuWem tit M tt
Colonial �. a Facility
Medda
urg County
Dear Mr. Cridw.
on Au 2,1 , tho Division of W'a °ty issued E Permt No. NCO031038
to Colonic Pipeline. John Culbrca&3 written roquast, received November 4, 1996
and
modification f ($100. check #19 18) received December 2,1996, the foil ° Ag m0di&ation
has n uumk to the pwnit. plow may be estimated at the effluent by taIdng WeWY WmataBOM
measurements.
pleasc
flit
sheet which gio id be .insomd Into it. -
TU old tthe cd&d
s be di o s CCU nscontained in
Permit rc�nau unc end n* 'tmodification is issued pursuant uant t
o the
mquirenmcnts of lei C � tutu 1 3- 1 . and the Memorandum of A rnent
betwun North Cmv&a and the U. S. EtIvirOOTneutal P=cdou Agency.
if you have any questions, "
contacted at 19)733-5083, extension 518.
Sincemly Yours.
Preston Howard, Jr.,
Rcility AsmsmontUnit
permits & Enoneeting Unit
John W. CuIreath, Colonial Pipeline
p.0.50xz$535, Raleigh, N*M C rna 37 536 Talophone 9iO-733.5t183 FAIL 919-' -071
An Equal Oppomnq Affirmafroo Aotion rimplq 5 r 10% Pod-wnsuftw Paper

PPPP'
State of North
Department of Natural Resources ani
Mooresville Regiona
mes G. Mattin, Governor
Thomas Rhodes, Secretary
DIVISIOI
March 9,
Mr. R. J. Cole
Colonial Pipeline Company
3390 Peachtree Road, NE
Atlanta, Georgia 30326
Subject: NPI
Col
Mec
Dear Mr. Cole:
-3 sets forth the effluent 1
scharge. Your discharge mus
lina
ze
Albert F
L987

PPP -
Mr. R. J. Cole
'age Two
Marcia 9, 1987
wastewater treatment facilities, quantity and type of wastewater being treated
or discharged, +expansions and/or upgrading of wastewater treatment facilities
must be permitted or approved by this Agency.
w,ca+ :vc s. arar, s.wca..caac &. PLVV.LU.Ulg any aSSISLanc.e«
Sincerely,
D. Rex Gleason, P. R.
Water Quality Regional Supervisb
Enclosure
DRG:se

PPFF,
State of North Carolina
Department of Natural Resources and Community D v lopmen°
Mooresville Regional Office
James G. Martin, Governor Albert F, Hilton, Reg
S. Thomas Rhodes, Secretary
DIVISION OF ENVIRONMENTALA
Decemberi11, 1
. R. J. Cole
Associate Engineer
Colonial Pipeline Company
Lenox "Towers
3390 Peachtree Road,; N. E.
Atlanta, Georgia 303 6-1108
Subject: Compliance Recunnai sa
Inspection Report
Colonial Pipeline Comp
DRS Permit No . �NCO03'
Mecklenburg County
Bear Mr. Cale:
Enclosed please find copies of the Compliance Inspection Report for t3
inspectionconducted on October 79, 1986, by Mr. Thurman: -Horne of this
Office
The Report should be self-explanatory, but if you have any questions
please contact Mr. Herne or me at (7 4) b 1 '9.
Sin errel
onald L. McMillan
Enclosure Regional Supervisor
cc* Mr. Gil Wallace,; EPA
Mecklenburg County Health Department
Steve Reid
J'TH ° bb
An Equal opportunity Affirrianve Action EmpkW

Permit
STATE OF WORTH CAROLINA
DEPARTMENT OF NATURAL RESOURCES & COMMUNITY DEVE
DIVISION OF ENVIRONMENTAL MANAGEMENT
E R M I T
To Discharge Wastewater tinder The
NATIONAL POLLUTANT DISCHARGE ELIMINATION SY !
Colonial Pipeline Company
Charlotte Delivery Facility
on NCSR 175
Mecklenburg County
iving waters designated as an unnamed tributar,
Catawba River Basin
t shall be effective
ed this day of
DRAFT
R. Pa" ul Wilma, Director'
Division of Environmental Ma
By Authority of the Environx
Management Commission

Permit No. NCO031
PPPO
SUPPLEMENT TO PERMIT COVER SHEET
Colonial Pipeline Company r
Charlotte D-,livery, Facility
is hereby authorized to:
1. Continue the overation a treatment facility consist
located on`NCSR 1765 in Mecklenburg County (See Fart
Ill of this permit), and
2. Discharge from said treatment works into an unnamed
tributary to Gum Branch which is classified Class "C"
waters in the Catawba. River Basin.

During the period beginning on the effective date of the permit and lasting until expiration, the permittee
is authorized to discharge through outfall 001 stormwrater and contaminated wastewater originating from
point sources including, but not limited to bulk storage tank areas, product transfer areas, ±loading/
unloading areas, etc. Such discharges shall be limited and monitoring by the permittee'as specified
below:
ffluent Characteristics Rischar e Limitations Monitoring Requirements
KcJday (Ibs/da ) Other Units (S ecif) Measurement Sam le **Sam ale'
aily Avg Via€ y ax. Rai Avcx. C3atl Mix. Fre uenc T e Location
Flow Weekly Instantaneous
Oil 6 Grease 30 mg/I 60 mg/I 2/Month Grab E
* Monitoring will be conducted during normal working hours.
This permit imposes no limitation on the discharge of stormwater runoff uncontaminated by any industrial or
commercial activity and not discharged through any oil -water separator or other treatment equipment or facility.
* Samples taken in compliance with the monitoring requirements specified above shall be taken at the following
I ation(s) s The nearest accessible point after final treatment but prior to actual discharge to or mixing with
the receiving waters.
E - Effluent

Part III
Permit No.
,oked and :reissued to
exceeds 30 mg/l, or
b.. the analyses of any two representative grab sample
the State at least six hours ap<
thirty day period each individua
Each sample taken by either the pert
i-excluded sa
I., A. shall be deemed to have been exceeded if either:
a. the arithmetic average of the analyses of all repre'sentat:
samples taken during a calendar month by the permittee or
this State (e minimum of two samples taken at least six hi
apart) in accordance with the monitoring requirements set
above exceeds 60.0 mg/l, or
b. the analysis of a single sample (when it is the only one
during the day by the permittee) exceeds 60.0 mg/l.
Each sample taken by +either the permittee or the State shall
presumed to be representative However, due to the variabili
the sampling and analysis of oil and grease discharges from
petroleum marketing terminals, the permittee may in good fait]
declare a maximum of 10of the samples taken by it during a
calendar year, but not more than one sample taken during any
calendar month, to be non -representative. No sample may be s(

December 11, 198E
NPDES STAFF REPOT
Meckl
NPDES Fern
PART I - GENERAL INFORMATION
1. Facility and Address: c/o Colonial
Lenox Toc
3390 Peac
Atlanta,
2. Date of Investigation: 10/29/86
. Report Prepared By: J. Thurman or
4. Persons Contacted and. Telephone Numt
5. ;Directions to Site. From the inters
travel east on
Turn left nor
mile to the fix
is located at t
6. Discharge Point - Latitude: 35°
Longitude; 80°
inton map.
F15SW
RECOMMENDATIONS
County
s " NCO031038
ine Company
s Road, N.E.
is 30326-1108
E.
. Ted Woods
704/392-861.0
w" of 'V r Fens 97 artr3 R:.. 17ALL
.R. 1765 and travel appox 0.1
3 road on the left" The facility
Df this paved road.
tment plant site and
ading)
ten 10) acres. There is
ansion and modifications.
t • 11
t
- ". ,
t`. a
and spillage lofYpetroleum�productsY(gasoline, diesel 'pfuel, Retc.)� --
age

c. Prevalent toxic constituents in wastewater: oil
d. Pretreatment Program (POTWs only) N/A
2. Production rates (industrial discharges only) in pounds N/A
3. Description of industrial process (for industries only) and applicable
CFR Part and Subpart: None
4. Type of treatment (specify whether proposed or existing):
Existing facilities consist of two (2) oil/water separators installed in
series. Accumulated oil is periodically removed and stored in holding
tanks for later reprocessing. Effluent from the second oil/water
separator is discharged to the receiving stream.
5. Sludge handling and disposal scheme: No sludge is generated.
5. Treatment plant classification: Class I
?ART III - OTHER PERTINENT INFORMATION
L. Is this facility being constructed with Construction Grants Funds? N/A
Special monitoring requests: None
3. Additional effluent limits requests: None
r.Other: None
'ART IV - EVALUATION AND RECOMMENDATIONS
ure of ref-6rt/prepz
Water 'Q­­ua-1ii-y—R"" ibiia-] St