WQ0004097_Regional Office Historical File Pre 2018

I C m �V
Permit Rescission dorm
Information to beIced t b ntr Iic:
Facility Name: Arey Oil n pn y-One stop 4 4
Permit Number: WQ0004097
Regional Office: Mooresville
County: Cleveland
Date Rescission Requested. 10/12/2004
Permit Expiration: 111 h 2000
Received OriginalRequest: entr l Office e innal Office
Furor of ReceivedRequest: [:::KD Letter = Signed Annual Fee Invoice = Other
Information to befilled ®uf i�►n
Please Check ropri t ly '
El Site Visit Performed dGroundwater Concerns Addressed
Recommendatinn fn Rescission f the Above Referenced Permit*
Approve 11 Deny
Note: If,approved this permit will become inactive in the BIMS database and will not be billed
through the division billing syse
C"b plete if Approved: Rescind Immediately
Reason for Approval /1, : C" r q� , f .11
Reason for Denial
---
Signature of Certifier:
Date Certifiedc.
l etum Completed and Signed Fomi to the Aquifer Protectior
Program Section

C b". ; AND
o-F ��
4��RCES
RECOVED
DIVISION OF WATER QUALITY NO'v 0 5
AQUIFER _PROTECTION SECTION
ER SECT'ON
MEMORANDUM
To: Andrew Pitner, Regional Aquifer Protection Supervisor
Mooresville Regional Office
Through: Debra Watts, Supervisor
Groundwater Protection Unit
From- Ervin Lane
Groundwater Protection Unit
Ike: _ Rescission Request
Arey Coil Company Q000 Clg7
Groundwater lernediatior
Cleveland County
The APS Central Office received a; letter from .Arch. Coil Company requesting a permit rescission
ofpermit ' Q0004097. The facility name is Arey Coil Company -One Stop l have attached a
copy of the letter with the permit rescission form for information to determine if a rescission can
he issued..
If you have any questions on this matter, feel free to contact me at q l q 715-6168.
cc Ps GPU File

Delta
Environmental
Consultants, Inc.
SolNing earvira nment-relaat d business problemsworhWAe
_ . delt env.ccrrxa
8008 Corporate Center Drive * Suite 1118
Charlotte, North Carolina 28226 US
0.54.t.9890 800,477.7411
Fax 0 4343. 4tt3
October 12, 2004
NCD — Division of Water Quality CD
Aquifer Protection Section
1636 Mail Service Center C
w
Raleigh, North Carolina 276 -1 3 P
wa
Attn: Debra Watts Mr ..t
Subject: Groundwater Remer iation Permit Cancellation �*
rey Oil Co. — One Stop #4 Z3
Cleveland County, NC
permit (909
Dear Ms. Watts;
On behalf of Arey Oil Company, [tic., Delta Environmental Consultants, Inc. (Delta) herein
requests cancellation of the above -referenced groundwater rernediation permit. The associated:
groundwater pump and treat system has not operated for several years. and therefore, no longer
discharges.
Based on the current method of rea ediation, the t CDENR is no longer requiring operation of the
groundwater pump and treat system. Should the NCDENR require active rernediation in the
future, as more cost-effective, mean -pumping, treatment alternative would likely be implemented at
the facility.
If you have and; questions regarding this report, please contact the undersigned t [phone].
ncerely,
DELTA ItZ NMENTAL CONSULTANTS, INC
Step ibbyGL, .f,.
Project Manager
cc: Ar . , Od Company, Inc. -Ms. Kay Nerc
A member of.
Xinogeif
talAl t

State of North r lin
Department n it anmen
and Natural Resources
Division of Water r Quality:
Hunt,James B.
Kerr T, Stevens, Director
February 28, 2000
ROBERT AREY
Al pY OIL CO -ONE TOP
1906 EAST DIXON N BLVD.
SH LI Y, NC 2 1.52
D E N R
Subject; PERN11T NO. WQ0004097
AREY 011. CO -ONE E T P
CLEVELA D COUNTY
Dear Permittee
Our files indicate that the subject permit issued on 1 ` /21 / 5 expires on l l/30/00. We have not received a
request for renewal from you as of this date.
A renewal request shall consist of a letter asking for pernrit renewal and four i i copies of a completed
application. For permitted facilities with treatment works, a narrative description of the residuals management
plan, which is in effect at the permitted facility, must also be submitted with the renewal application.
Applications may be returned to the applicant if incomplete.
The General Assembly passed legislation incorporating renewal fees into the annual fee.
Please be advised that this permit must not be allowed to expire. You must submit the renewal request at
least 180 days prior to the permit's expiration date, as required by the 15 NCAC 2H M11. Failure to request a
renewal at least 180 days prig to the pe tit expiration; date and/or operation of a facility without a valid permit
may result in the assessment of civil penalties. NCGS 143-215.6A allows for the assessment of Civil penalties
up to p 10,000 00 per violation per day.
The letter requesting renewal, along with the completed Non -Discharge Permit Application must be sent
to
N,C. DIVISION OF WATER QUALITY
N DISCHARGE BRANCH
1617 MAIL , SERVICE CENTER
1 1 AL IGH, NC 27699-1 17
1617 flail Service Center, Raleigh, North Carolina 7599-117 Telephone 91 -7 - 08 FAX 919-7-ti719
Are Equal Opportunity Alf rmative Action Employer 5 % recycled' 10% post -consumer paper

If you have any questions entree iug this matter, please contact Ms. Kimberly Young at
919 733-5083 extension 574,
Sincerely.
Kim H. Colson, P.`., Supervisor
Non -Discharge Permitting Unit
yea; Mooresville Regional Office
Central Hies

6w
S vk $',Q
Delta ' irlot, 6: sW
Environmental 5 1 890
Consultants, Inc : F A X 70 4()'3 1
October 2, 199'
Northaro i Department of Environment,
Health and Natural Resources
919 forth Main Street
Mooresville, North Carolina 28115
Attention. Mr. D. Rex Gleason P.E.
"rater Quality Regional Supervisor
Subject: Permit Violation
Non -Discharge Permit No. WQ0004097
grey Oil Company
One Stop
Earl, North Carolina
GW Incident #3130
Delta Project No. 1 -564
Dear Mr. Gleason:
Delta Environmental Consultants, Inc, (Delta), on behalf of Arey Oil Company, is providing
written notice of a violation of Non -Discharge Permit No. WQ0004097 at the above referenced
site, A sample was collected from the ground water remedial system effluent on September 11,
1996 and the analytical results indicated that benzene was above the permit firnit. Benzene was
reported at 2 micrograms per liter tu, tl the permit standard is one a/la
e ground water remedial system previously consisted of two diffused aeration tanks with treated
ground grater pumped from on -site recovery wells. Following treatment, the water was discharged
to an infiltration ;gallery, however, in August 1996, one of the diffused aeration tanks was
decommissioned because of a faulty pressure blower, Deltahad submitted Alternative
Corrective Action'Pl t .P in May 1996 which proposed de -activating a remedial system
monitoring -only p pp p ip d, a such, the
d initiating a 1 ravel of e 1 �s anticipated shard
decommissioned diffused aeration tank has not been repaired.
Prior to collecting the October 1996 remedial system effluent sample, melt will clean the operating
diffused which should increase thesystem, removal efficiency. However, if the analytical
results show that benzene still exceeds the permit limit, and approvalof the ACAP has not yet been
received, en Delta will repair the blower used to operate the second diffused aeration tank and
install it at the site.
Prr va&g a Ccryipe€i#iv Edge

NCDEHNR
Permit Violation
Doha Pmiect No-M4
October 2, 19%
Pago 2
If you have any questions or concerns, please contact me at [phone].
Sincerely,
DELTA ENVIRONMENTAL CONSULTANTS, INC.
Alison L. Lord
Project Engineer
ALL/dpf
cc: Mr. Robert .Arty, Arey Oil Company
Mr. David Gipe, Delta Enviromnenud Consultants, Inc.

F
State of North Carolina
Department of Environment,
Health and Natural Resources
Mooresville Regional Office
James B, Hunt, Jr., Governor
Jonathan B, Howes, Secretary
DIVISION OF ENVIRONMENTAL MANAGM,4ENT
Decenber 27, 1995
Mr. Robert Arey, President
Arey Oil Company
1906 East Dixion Blvd.
Shelby, North Carolina 28150
Ia 0
Arey Oil Coxftpany
One Stop No. 4, Earl, KC
Cleveland County, NC
1�19 North Maur Street, Mooresville, North Carolina 28115 Tehephone 704-663 1699 FAX [phone]
An Equal OpportUruty Af firrmofive Adion Ernployer 501%recyc�ed,,' 110%post-consumer paper

As mentioned r i l the purpose of this letter is t
die you of the importance of yourt Please read the
ermit and contact this Office at 704/663-1699 its Mooresville if
you have and questions or need clarification. we look ewe
to providing any 'assistance.
Sincerely,
9
D. Rex Gleason, P. E.
Water lit Regional Supervisor

State of North Carolina
Department fa i r n
Health and Natural Resources
Division of Environmental Management
Jarnias B. Hunt, Jr., Governor
ionathan B. Howes, ecretary
'lr, Roben, Art v , President
cy tail Company
1906 mast Dixteat Blvd,
d.
Shelby, North °arolina 2815
Decemberbet 2, 1995
Subject, Permit No. WQ0004097
Arey Oil Company
One Stop No.4, Earl, N.C.
Groundwater l eme:diatirrn Facilities
Cleveland County
Resat` N1, In Arcs
In accordance vide your application received August 30, 1995, we are forwarding herewith P rr nt
No. 00040 dated 1)cccntlacr 21, 1995, to the Arey OilCompany for the continued operation of the
serbJec.t c.�rrourrdwater rernedi tion facility, Please note the Division's Groundwater Section his required
reduction it) the Gallon per Day flow (GP ) frorn 5,800 GPD to 2,500 GP . According to the,
Mooresville oorevsville: Regional Office Groundwater Section, the existing infiltration gallery appears to be unable to
effcetiv lv ehslae~rsc the volume of water generated by the recovery wells pumping at the rna inttara rates.
This permit shall be effective from the date of issuance until November 0, 2000. shall void Perrrrtit
o. i%'t t3f..tf}409 issued lay' 20, 199 l and shall be strl� c t to the conditions and limitations as specified
therein, Please pay particular attention to they trionitoring requirements n this permit. Failure to establish
an ade%qu rtc syste in for colle tin and maintaining the required operational information will result in future
compliance Problems.
If any pasts. requirements, or limitations contained in this, permit are, unacceptable, you have the
right to request an adju hectory hearing upon written request within thirty 30) days following receipt of
this permit, This request must be in the form of a wfirten petition, conforming to Chapter 15013 of the
North Carolina GeneralStatute,,,, and filed with the Office of Administrative Hearings, P.O. Drawer
e
")7447, T alciuh. NC 27611-7447, Unless such dernands are, made this permit shall be final and binding.
If YOU have any questions concerning the Groundwater Conditions or groundwater nar nitolin
requirernents, please contact Ms_. Cindy Boyles in the Groundwater Section at f I 71 - lfi . If you
need any additional information concerning this matter, please contact Nor. John Seymour at 1 v
ti i extension 546.
inc rely,
x
,A, Preston "oward, Jr,, p,E:
cC" Cleveland County Fic.alth Department'
Mooresville Rec io al t f`fice, Water Quality Section
lslooresville} Regional Office, , Groundwater Section
Boo t:'lace k. GrOUndwater Section. Central Office
Trainiw. and Certification Unit (no ratin', 6;lrwrng
Facilities As,;e�"went Unit
Telephone [phone] FAX 91 - t3- 1 t
50"o rec ,, ed 1no'0 post-consurner paper

NORTH CAROLINA
ENVIRON',\IENTAL 1\1ANAGEINIENT CONIMISSION
DEPARTIMENT OF ENVIRONNIENT, HEALTH AND NATURAL RESOUR(."ES
G ROU'NDW ATER, REMEDIATION ESL NEE`
In accordance with the provision,,, of Article 21 of Chapter 143. General Statutes of.North Carolina as
amended, and other applicable. Lawe �, Rules, and Regulationsr,i',-
E
PERMISSION IS HEREBY GRANTED TO
Arey Oil Company
r"I I AO
�-' all a-nl" Ly DIVISION tr , 'ri"
'J ",I
FOR 'rHE
DEC 27 6991-111
continued operatic)n of as 2,500 GPD ground\vater reniediation facility with all infiltration gallery and soil
Ventina Consisting of two recovery wells each with a 7 -prn pump, a 1,000 gallon oil/water separator, a
550 gallon product holding tank, as contact chlorinator, two channeled diffused aeration tanks in series with
a 600 ct'ni blower, as totalizing flovv meter, a 110 gallon transfer tank with transfer purnp, a 6 foot by 50
foot infiltration gallery with two piezorneters, a 50 cfTn regenerative vacuum punip -with inlet coalescing
zr regenerative
particle filter.and associated punips, piping, valves, controls, and appurtenances to serve the one Stop
No, 4 of the Areg Oil Company in Earl, Non,li Carolina with no discharge (,lfwastes to the surface waters,
pursuant W the application received Augim 30, 1995. and in conformity with the project plan,
specifications, and other supporting data subseqUe.utlV filed and approved by the Department of
Envi['011T)leat. 1-1calth and Natural Resources and considered a part, ofthis pet-init,
This permit shall be effective from the (late of issuance Until November 30,2000, shall void Permit
No, WQ0004097 issued May 2M 199t, and shall be subject to the following specified conditions and
limitations:
I This permit shall become voidable if the soils Fail toadequately assirrulate the wastes and
may be rescinded unless the facilities are installed, maintained, and operated in as manner
which will protect the assigned water quality standards of the surface waters and ground
waters.
1) In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the, Permittee shall take in-unediate corrective action, including those
actions that may lie require d by this Division, such as the construction of additional or
rcphtcerncnt treatment or disposal facilities.
3. The iSSUance of this, permit shall not relieve the pernsittee of the responsibility for damages
to SUrface or groundwaters r sult I mg fron) the operation of this facility,
4. Any residuals gencrated from these treatinent faaeihties 111USt be disposed in accordance with
GcM"l-al Statute 143-215,1 all(:] in as imanner approved by the North Carolina Division of
EIIN ironnIC111,11 \LimweIncnt'

IFiv rsi n or bypassing of the: untreated groundwater from the treatment t facilities is
prohibited.
>E T1V N AINTEINA r "fie ±
l „rhe facilities shall be property maintained and operated at all tithes.
Upon classification of the facility by the Certification Commission, the ralitt shall
employ a certified wastewater treatment plant operator to be in responsible cher (C 1 )cif
the wastewater treatmentfaaciltties. The operator must hold a certificate of the type and
grade at least equivalent to or greater than the classification ;assigned to the wastewater
treatment facilities , by the Certification Commission. The Perrnittee must also employ a
certified back-up operator of the appropriate type and .grade to complywith the conditions
of Title 1 A, Chapter 8 , .020 ., The ORS° of the facility must visit each Class 1 facility at
least weekly and each Class 11,111, and IV facility at least daily, excluding weekends and
holidays, and must `properly taaanage and document daily operation and maintenance of the
facility and must comply with all rather conditions of Title` 1 A, Chapter 8 , M01
The facilities shall be effectively maintained and operated as to non -discharge system to
prevent the discharge of any wastewater resulting from the operation of this facility,
1. .Any, monitoring deemed necessary, by the Division of Environmetwil Management to insure
surface and ground water protection will be established and an acceptable sampling
reporting schedule ,shall be followed.
Noncompliance Notification:
The Perrnittee shall report by telephone to the Mooresville Regional Office, telephone<
number 04/ 663-1699 as saran as passible, but in no case more than 24 hours or on the
neat .Nvorking day following the occurrence or first; knowledge of the occurrence of any of
the following:
ia, Any occurrence at the wastewater treatment facility which results in the treatment of
significant t amounts wastes which e abnormal in quantity, r characteristic, such as
the dumping of the contents of as basin or tank., the known passage of as slug of
hazardous substance through the facility, or any either unusual circurnstances
b� Any process unit failure, due to known or unknown reasons, that renders the facility
incapable of adequate wastewater treatment, such as mechanical or electrical failures of
pump,,, aerators, compressors, etc;
c. Any failure of a pumping station,, sewer line, or treatment facility resulting in a'by-pass
directly to receiving waters without treatment of all or any portion of the influent t
such station or facility-, or
d . Any time that self -monitoring rin information indicates that the facility° is not in compliance
with its permit limitations,
Persons reporting such occurrences by telephone shell also file as written report in letter
-,carrel within 15 days following first knowledge of the occurrence. This report must outline
the actionstaken or proposed to be taken to erasure that the problem does not recur.

[W
M
GROT'T' NDWATER QLTt _FE —Rt— F!LJJ
The influent and effluent frorn the treatment systern shall be sampled month
parameters specified helow.
IIIE
MTBE
Volatile Organic Compounds- -(byMethod listed below)
EPA Method 6230D (Capillary - Column), "Standard Methods for the Examination
of Water Wastewater", 17 edition, 1989,
The results of the sampling and analysis shall be sent to the Groundwater Section, Permits
and Compliance Unit', P.O. Box 29578 Raleigh, N.C. 27626-0578 within 30 days of
sample collection,
2 Any additional groundwater quality monitoring, as deemed necessary by the Division, shall
zl�
be provided,
3, All components of the groundwater recovery, treatment, and disposal system shall be
properly weather -proofed to prevent freezing and failure of the system.
4, The 2roundwater recovery, treatment and disposal systern shall be inspected weekly. If it
is date. fined that the system is malfunctioning,, all repairs should be made as soon as
possible and reported to the Mooresville Regional Office within 48 hours,
5, The effluent from the emediation system must comply with the groundwater quality
standards contained in 15A NC AC 2L.0200 prior to discharge into the infiltration gallery.
INSPECTIf)N'S
I . Adequate inspection, maintenance and cleaning shall be provided by the Permittee to insure
proper Opetati011 of the subject facilities.
2 The Permittee or his designee shall inspect the groundwater recovery and treatment
facilities to prevent malfunctions and deterioration, operator errors and discharges which
may cause or lead to the release of wastes to the environment, a threat to human health, or a
nuisance. The Permittee shall maintain an inspection log or summary including at least the
n C�l
date and time of inspection, observations made, and any maintenance, repairs, or corrective
actions tak.en by the Pertnittee, Tfus log of inspections shall be maintained by the Permittee
for as period of three years from the date of the inspection and shall be made available to the
Division of Environmental Management or other perrnitting authority, upon request.
3 Any duly authorized officer, employee, or representative of the Division of Environmental
Management may, upon presentation of credentials, enter and inspect any property,
premises or place on or related to the disposal site or facility, at any reasonable tirne for the
purposc of detertinning compliance with this permit, may inspect or copy any records that
must be maintained under the terms arid conditions of this pertrat, and thay obtain samples
of gromirbvater, surface Nvater, or leachate.
V 1. GENERAL CONDITIONS
L Issuance of this permit does not, constitute approval for reimbursement from the Leaking
Petrolewn Ulider-round Storace Tank Cleanup Funds (I 5A NCB. 2P),
C, —
This pef -rnit shall become voi dable unless the facilities are constructed in accordance with
the conditions of this permit, the approved plans and specifications. and other supporting
dat,,t

FF-
This permit is effective only with respect to the nature and volume of wastes described in
the application and other supporting data.
., This permit is not transferable. In the event viers is a desire for the facilities to change
ownership, or there is a fume change of the permittee, a formal permit request gust be
submitted to the Division of Environmental Management accompanied by an application
fee, documentation from the patties involved, and other supprtin materials as may be
appropriate. The approval of this request will be considered on its merits and may or may
not he approved..
. A set of approved plans and specifications for the subject project must be retained by the
Pernaittee for the life of this project:
6Failure to abide by the conditions and limitations contained in this permit may subject the
l ermittee to an enforcement action by the Division of Environmental Management in
accordance with North Carolina General Statute l -21 .ratan to 14 - :l ,6rc .
The annual administering and compliance fee must be paid by the Perntittee within thirty
{ W days after being billed by the Division, Failure to pay the 'fee accordingly may cause
the. Division to initiate action to revoke this permit as specified by 1 A NCAC 2H '0205
to°t:
The issuance of this permit does not preclude the. P rmitt .e from complying with any and
all statutes, rules, regulations, or ordinances which may he imposed by other government
agencies (local, state, and federal) which have urisdiction-
9 . The Pernaittee, at least six ro) months pricer to the expiration of this pen -nit, shall request its.:
extension. Upon receipt of the rearrest, the Conirnission will review the adequacy of the
facilities described therein. and if warranted will extend the permit for such period of time
and under such conditions and limitations as it may deem appropriate.
Permit issued this the 2 1st day of December, 1995
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT T f lvfl ISSION
a
A. Preston Howard Jr., RE„ Director ;
Division of Environmental Management
y authority of the. Environmental Management Commission
Permit Number 'VN'QO004097
4

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SOC PRIORITY PROJECT: Yes_No_2L
If Yes, SOC No_
Tw Permits and Engineering Unit
Water Quality Section
Attention: John Seymour
Date: October 12, 1995
NON -DISCHARGE STAFF REPORT AND RECOMMENDATION
COUNTY: Cleveland
Permit No, WQ0004097
PART I - GENERAL INFORMATION
I Facility and Address: Arey Oil Company
1906 East Dixon Blvd.
Shelby, NC 28152
2, Date of Investigation: October 11, 1995
3. Report Prepared By. Todd St. John
4. Persons Contacted and Telephone Number: David Gip e [phone]
5. Directions to Site: This gas station is located just north of the point where Highways 198
and 180 merge near Earl in Cleveland County.
6. Size (land available for expansion and upgrading): N/A
7W Topography (relationship to 100 year flood plain included)- Does not appear to be in a flood
plain.
Attach a U.S.G.S.reap extract and indicate, facility site.
U.S.G.S. Quad No.: GI 2NE U.S.G.S. Name: Blacksburg North
Latitude'. 351 13'25" Longitude: 81' 31'45"
8. Any buffer conflicts with location of nearest dwelling and water supply well: Yes,_No_ If
Yes, explain: The nearest dwelling is approximately 300 feet, The nearest watersupply well
is 100 feet.

Watershed Stream Basin Information:
a, Watershed Classification:
b� River Basin and Subbasin No.: 03 - tl
c, Distance to surface'water from disposal system: Greater than 500 feet.
PART 11 - DESCRIPTION OF WASTES AND TREATMENT WORKS
1. a. Volume: 0.0058 05 M (Design Capacity
b, Types and quantities of industrial wastewater: TOreated petroleum contaminated
groundwater.
Treatment Facilities
a. at is the current perinitted capacity of the facility"`0.0058 M 1
b. What is the actual treatment capacity of the current facility (design vol
O,0058MGD
C. please provide a description of existing or substantially constructed wastewater
treatment facilities: A groundwater remediation system consisting of an oil/water
separator, aeration tanks, and an infiltration gallery. The only change has been to atld
an automatic reset on the system it place of manual reset:
4. Treatment, plant classification cation (attach completed rating sheet): Groundwater remediation
systems with the above equipment are always Class, 1.
5. SIC odes; 5541
Wastewater Code(s) of actual wastewater, not particular facilities, i.e., nor -contact cooling
water discharge from a metal plating company would be 14, not 5.
Primary: 66 Secondary.
'lain Treatment Unit Code: N/
PART III - OTHER PERTINENT INFORMATION
I. is this facility being constructed with Construction Grant Funds (municipals only)?
Non -Discharge Permit staff Report
VOrsian 10192
Page

.`Special monitoring requests: N,/
. Important SOS", IOC or Compliance Schedule dates: / .
4. Other Special Items
PART IV - EVALUATION AND RECOMMENDATIONS
The facility appeared to be in good operating condition Renewal is recommended.
Note: Coordinates given in renewal application are inaccurate.,
Cignature o0leport, Preparer
a
R,
Water al , e_Ional Supervisor
Date
Non -Discharge Pexmit staff Rpport
Version 10192
Page

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North Carolina
rtment of Environment
Dfvls�16n of Environmental Managerribnt
James B. Hunt, Jr.„ Governor
rr Jonathan . Howes, Secretary
A. Freston Howard, Jr,, P.E., Director
for
�t
0
ANINEWMMONNUM
Q7 C. [ u E"7(7)71
A, s M
September 1, 1995
AREY OIL COMPANY
Subject: Application No. 4'.. 0004 97
One Stop #
GW Rentecliation Facility
Clevel,aand County
Dear MR ARE
The Division's Permits Land Tin-ineerincx unit acknowledges receipt of your permit application and
suppor-tinu Materials on August 30, 1995. This application has been assigned the number listed above,
PLEASE : FFF TO "MITE ABOVE AT UALIT NUMBER R WHEN MAKIN
INQUIRES lei mis PROJECT.
Your project has been assigned to John Seyinour for a detailed en .ineering review, Should there be any
questions concerning your project, the reviewer will contact you with an additional information letter,
Be aware that the Division's ion's regional office, copied below, must provide recommendations from the
Regional Supervisor or a Procedure f4our Evaluation for this project, prior to final al action by the
Division.
If you have any questions, please contact . olin Seymour at l cry 733-5083 extension 546. if the
engineer is unavailable, YOU May leave as message can their voice rraaail and they will respond promptly.
Please reference the above application number r when leaving ga in ssaage
r
ie
Sincerely,
Car-olyn M` Caaskill
Supervisor, State Engineering Review GYOUP
cc: Mooresville Regional Office
Pollution Prevention Pays
RO. Box 29535, a' s l i k5,North C'=trola na 27626-0535 Telephone ` 1 -733-T i t
n Equal Opportunity Afr'drmativu Action Employer

r- , 11;1 — f*; I t ; infection 11 1 A� 1, V� f 4 '1
4"1z �V­� a 1� a 1 steins W �.1toss either U0 M11,galleries Ail LLJJA��_ VL1 �� a V a� �6� �a­siuuk� -
into the subsurface, Each section of this application must be completed unless otherwise noted, Contact Lhe Groundwater Section at
[phone] to obtain Groundwater Remediation System Permit Application Guidelines.
1. GENERAL INFORMATION:
1, Applicant's name (please specify the name of the municipality, corporation, individual, etc.):
Mr. Robert Arey
2, Print Owners or Signing*'Official's name and title (the person who is legally responsible for the facilitfacility}and its compliance).
Mr. RobertSigning
- President
3. Nlailim- address: ___Arey Oijj.qo.,_1906 East Dixon Blvd.,
City: Shelbv State: NC — Zip: 28150
Telephone Number: (--1-04 ) _____482- 1445
4, Rcnicdiation Site Owner- —Federal; _State; X Private; —Public; —Native American Lands;
Omer (Specify)
5. List the principal products or services provided byfacilityGasoline Station/ racer y Store
6. Project Name (please specify the narnee of die facility or establishment - should be consistent OD all documents included in
this application package:
one Stop #4
7. Groundwater Incident Number (if known):
8 . Location of Remediation Activities (Street Address): Highway 180
City- Earl State: NC Zip: 28038
9. Latitude: N 35007' -,Longitude W 81"30' of Remediation Activities
10 Contact person wbo carr answer questions about -application;
Name: Mr. Ravi Telephone number: 04 54 1-9890
11 Application Date:
12, Fee Submiucd: S 200 The permit processing fee should be as specified in 15A NCAC 214,0205(c)(5)]
13. County where project is located: Cleveland
14, Is this application for facilities subject to UST Trust Fund reimbursement? Yes-, _ No
15. Has a comprehensive site assessment and corrective action plan been submitted and approved for this project? Yes;
— No Please provide two (2) copies of each and two (2) copies of the approval letter (if applicable).
FORM: GNVRS 06/94

I. Application No. (will be completed by DEM):
2, Specify whether project is: - new; X renewal*; - modification
For renewals, complete only sections 1, 11, and applicant signature (on page 9). Submit only pages 1, 2�
and three copies of each). Engineer's signature not required for renewal without other modification7s.
3 If this application is being submiLted as a result of a renewal Or modification to an existing pennit, list the existing
number- W00004097 and its issue date 5-20-91
111. INFOR.NMATION' ON CONTAMINATED GROUNDWATER:
I. Provide a brief description of the events or cause of the groundwater contamination,
2. List comaminariLs detected;
3. VOIWM Of CTOundwater to Iv, rernediated per day: gallons (per day)
4, ExplanaLion of how volurne was detemiincd
IV. GENERAL DESIGN INFORMATION:
I. Specify the type of system that is being installed: - infiltration gallery, -injection well;
__ other (specify)--
2. Provide a 'DII-icf dcscr�iption of all omponents of ffie treatmerit and disposal system (i,e,, treatmem Units, JIUMPS, Lanks,
chemical feed system, injection andJor recovery wells, etc.):
FORM: GWRS 06/94 Page 2 of 9

be rcompleted by the appropriate DENI regional office and included as a part of the project
mation.
CTIONS TO NC PROFESSIONAL ENGINEER -
The classification of the downslope surface waters (the surface waters that any overflow from the facility would flow toward)
in which the remediation system will be constructed must be determined by the appropriate DEM regional office, Therefore,
you are required, prior to submittal of the application package, to submit this form, with items I through 7
completed. to the appropriate Division of Environrnenral Management Regional Water Quality Super visor (see page 9 of 9).
1
At a minimurn, you must include an 8,5" by 11" copy of the portion of a T5 minute USGS Topographic Map which shows
the location of the rernechation system and the downslope surface waters in which they will be located. Identify the closest
downslopc Surface waters on the attached map copy, Once the regional office has completed the classification,
reincorporate this completed page and the topographic map into the complete application form and
submit the application package,
1, asp Plicant tsp. cify name of the municipality, corporation, individual. etc.).
2, Na-Tne &- complete add-ress of engineering frrm�
Tclephone number
1 , Project ruune:
4, \a-ne of closest do-wnsllo pe surface waters:
5. Coumy(ies) where the rcmediation systern and surface waters are located:
6. 1N13p name and date:
7. NC Professiomtl Enezincer's Seal. Signature. and Date:
TO. REGIONAL NVATER QUALITY SUPERVISOR
Please provide nee with the classificabon of the watersbed,.A,,,here these sewers will be constructed, as identified on the attached
nlap segmenu
Name of surface waters:
Classification (as established by the Environmental Marialgement Commission):
Proposed classification, if applicable:
Signature Of TeciOnal office personnel: Date:
(All attacimients must be signed)
FORM: CNN'RS 06/94 Page 7 of 9

Name, and Complete Address of Engineering Firtn: —
6701 Carmel. Road, Suite 200
"qqIta Environmental Consultants, Inc.
cl*,N 1 Charlotte -- State-, — NC Zip: 28226
704 541-9890
Proftssional Engineer's Certification:
1, —, attest that Lhis application for
revic,,ed h,n oc arid is accurate and comp etc to the best of my knowledge. I further IMCSt that to the hesi (if inn knowledge
Llic Popo�,cd dcign bas bean prepared in accordance with the applicable regulations. Aldiough certain portions of this subMiLLal
p,tcQ;"­, !T-I.jy bm-,km, develc�,pcd by oLher professionals, inclusion of these materials under mN signature and scal signifies that I have
rc\ i.vcd in2itctial and liavejudQed it to be consistent with the proposed desi4�on.
NoUCa'r)lln'Prolc,sional Engineer's Seal, Signature, and Datc.
C�
Applicant's Certification:
1,--Robert attest t1tat this application for_ afire y Pil. Compa2y
has bkcen revic�ked b� me and is accurate and COMPIM to the best of my knowledge, I undersuind that if afl T�quircd parts of this;
applIcation are not completed and Lhai if all required supporting inforTnation and attachrrienu; are not includcd, this application package
v ill 1% rearmed to zrat dtarrplet
'UTO S�2na, Date
THE COMPLE111--D APPLICATION PACKAGE, INCLUDING ALL SUPPORTING INFOWNLTION AND
MATERIALS, SHOULD BE SENT TO THE FOLLOWING ADDRESS;
NORTH CAROLINA DIVISION OF ENVIRON.MENTAL MANAGEMENT
WATER QUALITY SECTION
PER'MITS AND ENGINEERING UNIT
POST OFFICE BOX 29535
RALEIGH, NORTH CAROLINA 27626-0535
TELEPHONE NUMBER: 733-5083
FORMWRS 06194 Page 8 of 9

NORTHFV
OLIN
ENVIRONMENTAL MANAGEMENT COMMISSION
DEFARTMENTOF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
INFILTRATION GALLERY PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Mules, and Regulations
PERMISSION IS HEREBY GRANTED TO op
Arey Oil Company
x,
Cleveland County.
1
FOR �, +R
construction and operation of a 5,800 GPD groundwater renediatiarsystem with `';a ,._.
c4
gallery and soil venting consisting of two recovery wells each with a 7 gpm pump, a 1,
gallon aril/water separator, a 550 galleon product holding tank, a contact chlorinator, two channeled
diffused aeration tanks in series with a 600 efin blower, a totalizing flow meter, a 110 gallon
transfer tank with transfer pump, a 6 foot by 50 fagot infiltration gallery with two piezometers, a 50
cfm regenerative vacuum pump with inlet coalescing and particle filter, and associated pumps,
piping, valves and appurtenances to serve One top o. 4 of A.rey Oil Company in Earl, North
araalina with no discharge to the surface waters, pursuant to the application received September
1990 and in conformity with the project plan., specifications, and ether supporting data
subsequently filed :and approved by the Department ment f Environment, Health and Natural Resources
d considered a pan of this pennit,
This permit shall be effective from the elate of issuance until April 30, 1996, and shall be
subject to the following specified conditions and limitations:
M

41
r +"
#3 BODY SHOP /*
HIGH
WELL GAS UNE
CQORIGINAL
LocxnoN
w U
P"Y LEAK
1180
OLD
TANK
PROPOSED INFILTRATION GALLERY
LEG_END. LOCATION OIL
pRopWTY BOLINDARY EARL, NC
�t i Y
88 CA .
DATE ioipu -By Deft

j
WIP,
'T
State of North rth arolin
Department rtment nvir°crtrment, Health and Natural Resources
Division of Environmental Management
12 North Salisbury Street - Raleigh, North Carolina' 7 2 -0
James 0. Martin, Governor George T. Everett, PhD,
William W. Cobey, Jr., Secretary Director
May 20,1991
Mr. Robert Arey
rey Oil Company
1906 E. Dixon Boulevard
Shelby, North Carolina Z ,1 - "r �
gar Subject: Permit No. WQ0004097
.. J , v , Arey Oil Company
One Strap No. 4, Earl, N.C.
'r' t Groundwater I errtediatit n System
rt ., Cleveland County
k
Dear Mr. A ya -
r
In accordance with your application received September 7, 1990, we are forwarding
herewith Permit No. TQ,0L , dated May 20, 199 1, to grey Oil Company for the construction
and operation of the subject groundwater remediation and infiltration gallery dispersal system.
This permit shall be effective from the date of issuance until April 30, 1996, and shall be
subject to the conditions and limitations as specified therein. Please pay particular r attention to the
Monitoring requirements in this permit. Failure to establish an adequate systern for collecting and
maintaining the required operational information will result in future compliance problems.
If any parts, requirements, or limitations contained in this rertriit are unacceptable to you,
you have the right to request an adjudicate y hearing upon written request within 30 days
following receipt of this perriat. This request must be in the form of a written ten petition; conforming
to Chapter 150B of North Carolina General Statutes, and filed with the; Office of Administrative;
Hearings, P.O., Box 11666, Raleigh, NC 27604. Unless such de ands ar°e made this perrait shall
be final and binding:
One set of approved plans and, specifications is being forwarded to you. If you need
additional inf rrrrati n conce ing this matter, please contact Mr. John Seymour at r 19,E -508
'� ircerely
,r
Y
eorge T. Eve' eit
cc: Cleveland County Health l epa true ..;.
Mooresville Regional Office
ce
rrattndwat .r'Section
Trainingand Certification
Delta Environmental Consultants, Inc,
Facilities Assessment
Pollution Prevent ion Pays
P,O. flax 29535, Raleigh, J` otth Carolina 27626-0535 Telephone 1-733-?01 `
n Egtial Opportunity Affitanativa Action Employer

NORTH (MIOLINA,
ENVIRONMENT L MA IA I III` T CCIMI°a I IO
DEPA 'rMENT CIF ENVIRONMENT, HEALTH AND NATURAL TURAL E C I C E
RA.LEIGH
INFILTRATION GALLERY PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina olina as amended, and other applicable Laws, pules, and regulations , r:
PERMISSION IS HEREBYGRANTED 'T`
Arey TailCompany
patsy
;.,
Cleveland County
pC `hIL a .
n
construction and operation of a 5,800 GP groundwater rernediation system withan artf � rVf
gallery and soil venting consisting of two () recovery wells each with a 7 gprn pump, a 1,
gallon oil/water separator, a 550 gallon product holding tatty; a contact chlorinator, two channeled
diffused aeration tanks in series with a 600 cfn-r blower, a totalizing flow meter, a 110 gallon
transfer tank with transfer pump, a 6 foot by 50 foot infiltration gallery with two ,pie orneters a 50
ct'in-regenerati e vacuum pump with inlet coalescing and particle filter, and associated pumps,
piping, valves and appurtenances to serve One Stop No. 4 of airy Oil Company in Earl, North
Carolina with no discharge to the surface waters pursuant to the application received September 7
1990 and in conforrnity with the project plan, specifications, and other supporting data
subsequently filed and approved by the Department of Environment, Health and Natural resources
and considered a part of this permit,
This permit shall be effective from the date of issuance until April 30, 1996, and shall be
subject to the following specified conditions and limitations:
1. L I
. Upon completion of construction and prior to operation of this p -litted facility, a
certification roust be received from a professional engineer certifying that the
permitted facility has been installed in accordance with this permit and the approved
plans and specifications. Mail the Certification, to the Permits and Engineering Unit.,,
P.O. Box 29535, sleigh, NC 7626-0 35.
2 The Mooresville regional Office, phone no. 704/ 63-169shall be notified
at least forty-eight (tl) hours in advance of operation of the installed facilities so
that an in -place inspection can be made.Such notification to the regional supervisor
shall be made during the normal office hours from :dt a.m. until 5.00 p.m. on
Monday through Friday, excluding Mate Holidays.
3,. This permit shall become voidable if the soils fail to adequately absorb the wastes
and may be rescinded unless the facilities are installed, maintained, and operated in a
manner which will protect the assigned water duality standards of the surface waters'
and ground waters.
1

4 In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Pernaittee shall tale immediate corrective action, including
those as may he required by this Division, such as the construction of additional r
replacement treatment or disposal facilities
5 The issuance of this pen -nit shall not relieve the Permittee of the responsibility for
damages to surface or , r undwaaters resulting from the operation of this facility.
fi, Any sludge generated from these treatment facilities must be disposed of in
accordance with General Statute - 15.1 and in at manner approved by the hart
Carolina Division of Environmental Management,
7. Diversion or bypassing of the untreated groundwater from the treatment facilities is
oha i
prt, _ed.
IL -a
I The facilities shall be properly maintained and operated at all times
Upon classification of the facility by the Certification Commission, the Pertiiittee
shall employ at certified wastewater treatment plant operator to be in responsible
charge of the wastewater treatment ent facilities. The operator trust held, a certificate of
the type and grade, at least equivalent to the classification assigned to the wastewater
treatment facilities by the Certification Commission. Once facility is classified}_
the Permittee must submit a letter to the Certification Commission which designates
the operator in responsible charge within thirty days after the wastewater treatment
facilities are 50 complete.
.. The facilities shall be effectively mairrtained aand operated as anon -discharge system
to prevent the discharge of any wastewater resulting from the operation of this
facility.
I Any monitoring deemed necessary by the Division of Environmental Management to
insure surface and ground water protection will he established and an acceptable
sampling reporting schedule shall be followed.
Noncompliance Notification:
'17he p"ernuttee shall report by telephoner to the Mooresville Regional Office, telephone
no. " 4/ 663-1699, as soon as possible., but in no case more than 24 hours or on
the nest working day following the occurrence or first knowledge of the occurrence
of any of the following:
a. Any occurrence at the wastewater treatmentfacility which results in the
treatment of significant amounts of wastes which are aabnortr-aal in gUant ty or
characteristic, such as the dumping of the contents of as basin or tank; the
known passage of a slang of hazardous substance through the facility{; or any
other unusual circumstances,
ba Any process unit failure, due to known or unknown reasons, that render the
facility incapable of adequate wastewater treatment such as mechanical or
electrical failures of pumps, aerators, compressors, etc.

rr
C. Any failure of a pumping station, sewer line, or treatment facility resulting in
a by-pass directly to receiving r t rwithout 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 is not is
compliance with its permit limitations.
Persons reporting such occurrences by telephone shall also file a written report in
letter frarn within. 15 days following first knowledge of the occurrence. This report ,
must outline the actions taken or proposed to be taken to erasure that the problem
does not recur.
l 1
l,. A second aeration system, identical to and in series with the first, shall be added to
the renaediatie n system to further treat the effluent prior to discharge into the
infiltration gallery,
2 The effluent from the remedirati n system must comply with the groundwater quality
standards contained it) 15A NCAC 21..0200 prior to discharge into the infiltration'
gallery,
,. All components of the groundwater recovery, treatment and disposal system shall be
properly weather -proofed to prevent freezing and failure of the system.
4, The influent and effluent from the treatment system stall be sampled once every two
weeps for the first three months and monthly thereafter for the parameters
specified below.
Volatile Organic Compounds - { by Method l or Method 2 belov,,)
Method 1: Method ;1 Capillary -Column), "Standard Methods for the
Examination of Water and Wastewater", 17th edition 198
Method , Method 502.2 " Methods for the Determination of Organic
Compounds in Drinking Water" United States Environmental
Protection Agency -600/4-88/039
If any volatile organic comppounds are detected by methold, 6230 ,or the equivalent
method 502.2, then EPA methods 604 and 611 must also be run to detect other
organic compounds which taaay be present, The results of all analyses specified in
the rnonitoring requirements, including 604 and 611 if required, must be submitted
simultaneously.
The results of the sampling and analysis -shall be sent to the Groundwater Section in
the Mooresville Regional nal Office and the Groundwater Section, Pemuts'Unit, P. O,
Bost 29535 Raleigh, N.C. 626-05 5, within 30 days of sample collection,
5. Two t weeks prior to system start-up the Pernaittee shall notify° the Division of,
_Env iron mental tManta ernent's Mooresville Regional Office that operation is about
to commence
The groundwater recovery treatment and disposal system shall be inspected weekly.
If it is determined that the system is malfunctioning all re sirs should be .made as
soon as possible and reported to the Mooresville Regional Office.

. Any groundwater quality monitoring as deemed necessary by the division of
Environmental Management shall be provided,
' INS CTIQJSS
I. Adequate inspection, maintenance and cleaning shall be provided by the Perini tee to
insure proper operation of the subject facilities.
The Petmittee or his designee shall inspect the groundwater recovery and treatment
facilities to prevent rnalfunctions and deterioration, operator errors and discharges
which may case or lead to the release of wastes to the environment, a threat to
human health, or a nuisance, The Pennittee shall beep an inspection log or summary
including at least the date and time of: inspection, observations made, and any
maintenance, repairs, or corrective actions taken by the Permittee, This log o
inspections shall be maintained by the Penaaittee for a period of three years from the
date of the inspection and shall be made available upon request to the Division of
Environmental Management emea t or either perrnitri ng authority.
d. Any duly authorized officer, employee, or representative of the Division of
Environmental Mans, may, upon presentation of credentials, enter and inspect
any property, prep- ices or place on or related to the disposal site and facility at any
reasonable time for the purpose of determining compliance with this pe. lit may
inspect or copy any records that Waist be kept tinder the terms and conditions of this
permit; or may obtain samples of groundwater, surface water, or l achate,
s GENERAL C0ND1TWN,,-'
I , This pen -nit shall beto ne voidable awnless the facilities are constructed in accordance
with the conditions of this permit, the approved plans, specifications and other
supporting data,
2' This permit is effective only with respect to the nature and volume of wastes
described in the application and other supporting data,
3, This permit is not transferable, In the event there is a desire for the facilities to
change ownership, or there is a name change of the Pe ' ittee, a formal permit
request must be submitted to the Division of Environmental Management
accompanied by an application fee, documentation from the parties involved, and
other supporting materials its may be appropriate. The approval of this request will
be considered on its merits and may or may not be approved.
T; The Peroaittee shall obtain ar well construction pen -nit from the Mooresville Regional
iona[
Office prior to construction of the recovery wells _
5. prior to a transfer of this bind to a new owner, a notice shall be given to the new
owner that gives full details of the materials applied or incorporated at this site.
6" set of approved plans and specifications for the subject project rnarst be retained
by the. Permittee for the life of this project.
. failure to abide by the conditions and limitations contained in this pertrut may subject
the. Perrnittee to an enforcement aac.tion, by the Division of Environmental
Management in accordance with North Carolina General Statute l id- 15.6.

The annual administering and compliance fed must be pail by the Perr iittee within
thirty (3 days afterbeing billed by the Division, Failure to pay the fed accordingly
may cause the Division ion to initiate action to revoke ke this permit as specified by 15
. ire issuance of this permit dries not preclude thePertilittee, from complying with and
and all statutes, rules, regulation,,,, s, or ordinances which may be imposed by rather
government agencies (local, state, and federalwhich have jurisdiction.
10The Perrrrittee, at least six (fa) months prior to the expiration of this permit, shall
request its extension, Upon receipt of the request, the Commission will review the
adequacy of the facilities described therein, and if warranted, will extend the permit
for such period of time and under such conditions and limitations as it may deem
appropriate...
Permit issued this the 20th day of May, 1991
George' T. Ever , lrrec�to
l i isica o ErisI urraental a s ement'
y authority f the onmental Management Commission issiorr

Permit No. WQ0004097
May 1991
n n r<
..� , as a drab registered Professional Engineer in the State of North
Carolina, having been authorized to observe p ri icall , weekly, full time) ) the construction of the
project, � � for the
Project Name Location
Perrnittee hereby stag that; to the best of nay abilities, due care and diligence was used in the
observation of the construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications,
Signature � r Registration i.stration No, -
at

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sw y y p9'
h%t 5:w
ndr`or l�dfxed»Machaa ,Pf84ers. A polishing process by which
effluent limits are. achieved through �
faaA nt'rz+ducticn eS suspardad sihids;(a)low rate __ gravity, hydraulically loaded fitter with loading
,daasa in'tho ana;so three gprnrsf tango;(b)hlgh WO .« a pros hydraulically footed filter with loading
�vztes In the five gpladsl range; At any rate, the loading rate will excuad three flfgrnrsf;
(41)Socdndary Clarifiers. A lank which follows the biological unit uH a Iteatmont plant and which lies
the purpose of removing sludge associated with the biological treatment uniks;
(42)Sopacate Sludge R aaoratton. A -part of Mo conlac4 stabilixai on process where the activated sludge
is transferred to a tank and aerated before ro:turnIng it to the baslu;
(43)Septic Tank. A sfngla-story sooting tank 1n which setiipd siuego Hs.'rn cor ctWith the wastewater
f,ow erg through the tarok; shall not be alplicabia for septic tank systaryll0t A Von 'got
less whiob discharge Is a mtrircarion field;
(44)Sitrdrge Digestion. The process by which orgen1c or volatile matter and sWga Is gasified, liquefied,
mineralized or convvorted-into rnore stable Organ°c matter through the art`sviiy of [living organisms,
which includes aerated holding tangy
(45)Sludge Dry''srig Beds. An area comprising natural or ar ificial layers Of porous materialsuponwhich
digested sawago sinsige is dried by draina4go and owapbration,
(45)Sfudge Elutriallon. A .process of sludge rconditioning I,n vr9itch eorlaTn censt;tdants are rornovod by
suceessiuo washings wwilh lrosta wuatet ur plank a"fiueni:
(47)SIudge seas uliliza€Con. The pvocuss of using sajwwaga gas for the purpose of heeling buildings,
driving engtmos, olc.;
(48)Sludge Holding tank (Aerated and twdrtaoraled), A lank utilized for small wastewater treatment
pNa 4s 5dl containing a digester in whicd skeadgo may too Slept fresh, and supernatant withdrawn prior to
a drying method (l,o. sludge drying lads.): 7tils naay t.o dens by adding a srnali amount of it sirnpty to
keep this sludge fresh, but not necessarily an amount that would ba required 14 achieve stabilization of
organic matter. A honaerafted tank would simply be used to decant sludge prior to dawaka4lig and would
simply used is decant sludge prior to dewatersng and would not allow long panods (several clays: of
detention) without resulting odor problems:
(40)SIudge Incereraiors, A furnace dosigned to 'burn sludge and to remove an moisture and combustible
materials and rodude the sludgo uo a sserilo ash;
(5a)Studgo Stabillzallon (chemical or Thurmah A pro coss ice r aka treated sludge less odorous and
putrescribfe, and to reduce Ilia palhosgame organisms cor)terrl; ThIs may be dome by pH ad)ustrnonH
chfonno dosing, or by heat traaf morrl;
(51)Sludcge Thlckonor. A typo at sadsrswWanW Rank in wh°soli the sludge Is porrniilod to settle and
shs`cten through zgltation and gravity; w
(52)Slatalllxalion Lagoon, A type at oxidation lagoon In which biological oxidation of organic matter is
affected by natural lranstet of oxygen to the water from air (not a polishing. pond);
5S)Stand-ay Power Supply. On file or portable alao rical generating accu`sptment;(54) Static Screens.
A stationary screen designed to remove solids including noon -biodegradable particulate (heatable solids,
suspan ed solids and SOD teduction) from municipal and Industrial
wastewater treatment syrslams;
(55)Teniary Trea monl. A stage of troatment folloynng secondary which is primarily tar' the cur dsu
of effluent palgshing; A soUrng lagoon or sand or coal filler, ,Wright be employed for thh; purpose.
(55)Thermal Pollution Lion Control Device. A device prevwldIng for the transfer of heat horn a fluid flouring
in tubes to another fluid outside the to as, or vice versa; or, other meads of regulating
fiquid temperatures;
(57)Thetmal Sludge Condlrioner. A. cond'W rasng process by which heal is added tot a protracted period
of time ko improve the dewaieratanl y 01 sludge by the sdlvblilzmV and hydraulizing at the smaller and
more highly hydrated sludge parflcTos; :
(55)Tozlc Material-. Those wastes Of comb naticns of waasle:s including disaaso•causmg agents which
.after discharge and upon exposure, ingestion, inhalation or vzain ilallon info any organism either
directly from the onvironmerif or indirocily by ingestion through food chalne, will cause death, dlseasa,
behavioral alb irnlalili6sM cancer, War rnaatas'sans, physiological roaifunetians (tnctudIng malHunctions
in reproduction) or physical deformations, in such orgaanisrrls or thou offspring; T dxic Maleriais
include, by way MusiraCion and not lithitahon: lead, cadmium, chrismIunw, mercury, vanadium,
arsanis, zinc, o�rmo-nitro-chlorebanzons (ONCE poly'chlothuaied bipherlyls (PoSs) and sdchlorediphortyl
trichlorooInaria lGOT), and any other rna.keriats mar, have or may hereafter be determined to have toxic
proosrtles;
(59)THcieltng Ittter. A bloiogicat hartimant unit consisting of material such as brokers alone or rock
over wedich swasfe,,atar is disirrbutedo A high rage trickling filter Is one which is operated at between
10 and 40 mgdlper acre, A low rare Cr'ick&lng flilor is one wilcn Is designed to operate at one to four
rngd Wr acroi
(ra0) ricoing palter (Packod Tower), .A plgg TioWw tY of operation In (vhwch wastewater glows rover
through successive layersed awrcewkl,a Or 1sllr,tt nwaiurf:al; organic mawriat is romovad continually by
1
active b;a8og'tcal' fixed growth to eacfw surcuss'Gve layer. Thus: oltt d may produce `secondary" quality
a6ffueat or may; be adapted to produce a ,Olinf ad eltr^uemt
.,uum Filters, Centrifuges, of palter presses. Devices which are designed to remove oxooss
water tom all or digested or undigested sfucge prior to ciisposaf of further
d RATING SCALE FOR CL SH'IC A i Itflw) 01. I-ACtc.i 1«117' -
J :ad raft_ rt Ij 'yl
"
Person.
_ I
Owner or Contact qy �
,� K.. F' y .'S Yam' rtt+
IVfaklifl Address: Telephone',_
Expiration Date :. - ---""""---"'"
NPDES Permit No. NCOO
"Issue I cif ci iiC 1 t :.,
ir�"t� CCCgcr EOit �'
Nondiso. Permit " O-
IssueDate:
' Cal,
« . —
Rated ;:rxrrr
Reviewed (Train. Gert.) Reg. Office
Reviewed jraint Cert.) Central Office-- __
Grade
ORC
IV
Plant Class; (circle cote),
POINTS
ITEM
(1) industrial Pretreatment Ucits and/or,
Industrial Pretreatment Program
4
(see definition No. 33)
FLOW OF PLANT IN GPD
(2QaaiQN
(rent; applicable to non -contaminated cooling
waters, sludge dandling facilities for grater
pagriflcetion plants, totally closed rule
stenos (def. No, 11)„, and faciMles
(4) (d) or Items (4) (d)
consisting only of ItefTa
and; (11) ())
1
2
20,001 - 60,505 .:....:..........
50,001 -- 100,000 . ; ...... . ........
250,00tt .:...:. , ..... .
1 a�if,Catt1 .. ,
250,001 500`000....,. ,...:.,.:.....;..
500,001--1,000,3f°f0
1d
1 y000,00l ^- 2,000,000
3t7 5 l and up). - rate 1 point additional for each
2,1 (
200, 5o gpd capacity uP to a
aximurn of 35
Design Mawr (gpd)
t
>

containing inorganic, moil -loxes materials from sand, gtavef„ crtrahcd sine or cattier similar. eperallont,
as
from which thereis no discharge se the surface waters; such systems shall carry a maximum of two
.
points regardless of pumping facilities or any other appurtanances;
a
(12)Combined Removal of Carborracocus, SOD and Nitrogenous RemoreAl 'by Nitrilicarion » A single
�. C" (see
£
PRELIMINARY UNI i S .(see dofimtion no. 2)
syslum rrioSrgnd" E6 achilive advanced porch alfluotil limns on Ct"w�D and a..eY'lmorna nitrogen within
i
the sarno birr,lsgrical reactor,
(a)
Bar Screens, ....... .. , , . . „ .....
(13)Ce-chlorination, The partial or complete rraductson of .residual chlorine ;n a liquid by any ctiamical
...
C r
or physical prier s,
14It 4 1`TE1Il c;ifj ','ujcc ns, Static Sorcons or
(14)0rinoriiicalidn Prrrors, Thn r:onvtarrion of nilratn�r&ognn'to nitragon, gas,-
'innizad
Comminuting DeV cos .... . . .
(15)Eiectrodiaiysis, Process for removing salts from water through the use of on-sriWnve
.:.... , . .. . .... . .
ion -exchange membranes„
(C)
Grit Removal ......
(16)Filter Press, A process operated machanieafly for partially dewalodig sludge,
(17)Foam Separation. The planned hroth.ng of wastewater ,or wssleawalar aftluant as a means of
(d)
Cr
Mechanical or crated Grit Ra;iTlCval . . . . .
removing oxcossivo amounts of deiorgrini mitnrial^ 111mugh !hp iriroducinn of air in rain corm of fine
bubbles; €oafri Ira,ctionafion,
(C)
,r`
Flog fir eas Uring Ddf v' Ce :. » .: . » w
also caned
(18)Crit Removal, The process of ranrovang g6T and other heavy mineral marten irooa waastaawalwi;
(19)lmhotf Tank, A deep two story wastewater tank consiming of an upper sectmanlation chartroar and
or
a lower etudes digestion chamber;
4(?,
InstrUmente'd Flow Measurement . . . , . - . . . . .
(20)insirurnomed arrow MmrSurarrurn,. A novice rvnich indicates andYor recsrtis ra8a of flowM1
(C)
Pr ewer tion . .. . . .. ..
(21)lon Exchange,. rA chemical process in which cans from Two difderent mrrlec'uds are exchanged;
( 2)Land applieatiion: (a) Sludge 6isposat. rt final sludge disposal method by which sludge may too
h
Influent lC3 ialIE CIC 1 .. . . . .
applied to land either by spraying on the surface or by subsurface injaclion ; .e., chisel plo ds); (not
Oil Separators - Gravity
applicable for lypes of sludge described in it1) of this Rule), (b)Treatod Elllupnr. The process of
(i)
Grease or ..02
spraying; Treated" wastewater canto a land area or other rrtafriods of application of wastewater onto a
Mechanical , . .3
land area as a moans of final disposal and/or traatrrarot
Dissolved air Flotation.
8
(23)Moroscreen. A low speed, cnttnuousty tack -washed: roBating drum Mier operating under
5,;
5
gravity conditions as a perverting method removing Suspended solids from efliurvil;
p�y �
r`r chlorination .. .. , . »
(2�4IdiihiHeahon Procasss. The blorhornic;rt conversion of unnidtxpd n6lrogen iarrirnorria and organic
O PRIMARY`
TREATMENT UNITS..
nl9roagon) In oxidized nitrogen (usually nilraw)-,
Septic TcRISCG�lewlf)ICICn no.
2
(26)hlitrogmnous Sligo. A Separate Stage of waslowaror Irriatrrrent designed for the specilic purp of
tin
converting fft o S raI r`t
ammonia nitrogen o nit e n roger„
(b)
Imhoff Tank -
(26)Phosphate Removal Biological, T he removal of :phosphorus from wastervalor by are oxlctAnoxic
C
Primary Clarifiers ..... .. ...... , - ;,
�
designed to enhance
ufotliewlnake f by Itto gw thrgsufrcirint
(d)
�
`settling bonds or SettlingTanks or Inorganic
Polishan , Pond. A holdinprocess
ondury
gsecondaosirreatmentdale i n allow o
the � p � � ntr td � dM for
the Settling finely
Non -toxic Materials (sludge handling facilities
of suspended solvers;
(28)Post .Aeration, Aeration foiloveing conventional secondary Treatment units to increase effluent 0.0,
for water purification 'plants, sand;, gravel,
or for any other purpose,
stone, and other reining operations except
(29)Post Aeratlon. (Cascado) A polishing method by which dissolved rxyrger is added in the strident by
a nonmechan.caf; gravity means of flowing dawn a series of steps or weirs; TMr flow occurring across
recreational activities Such gem or gold
the steps or weirs moves in a fairly thin layer and the operation or lho cascade, requires no operator
mining) ............. „ .. .. , , , . + . .
adjustment: thus, zero points are assigned even though [his is an essorniat step to meeting the limits of
(5) SECONDARY TREATMENT LIMITS
the discharge permit,
(30)Powdered or Granular Activated Carbon Feed, A biophysical carbon process that u6lires biological
(a)
Carbonaceous Stage
activity and organic absorption by easing powdered or granular activated carbon; 'Virgin andior
(I)Aeration w High Purity Oxygen St'rrl . , . . .
regenerated carbon is toed coniaoded Into the system;
Preaeratron.
Diffused Air System ,
3t A tank constructed to provide arrialion Prior to
(32)1orrifin (riasy units, Unit operations in tire iroatr, art psrrro.arl, such as screening and comminution,
McChanIcal Air System (fixed,
that prepare the liquor for subserlveft major operations;
floating or rotor) , .. .. , .
(33)tndustrial Pretreatment, (a)Pre-Ireaurant Unit, Industrial, The conditioning of a waste at its
Separate Sludge Reaeration .
Source before discharge, to remove or to neuiralize subssandos injurious to sewers and Irearms"hi
procasses or to oflect a partial reduction In Road on a treatment process which is operated by the same
II trickling Filter
governing body as the wastewater treatment plant being rated; (b;Pre-lesalmeni Program, Industrial .
High Rate
� .. » . .. » _
7
must be a State or EPA required program to receive points on the rating sheet;
34 iaariSiers.
�
5
Pelrnar 7htz first satPlln tanks thrrts h which 'rvaorrsvntor is s
4 } Y g 4 passed in e realmant
Standard Rate . ,. .... .. ..
works for the purpose of removing sfu0sable and suspended Solids and s0ra which is associated with the
Packed Tower .. , .
5
solids.
r�
(ill) Sr.„iol gic,.fl Aerated Filter or Aer ted
(3a5)Purnps. All influent, alticapn8, and in -plant pumps:
(36)nadln4lon, Oiji�"focTion "ehrRLtlor r$.t0.'� f:rwion pracri:s tB di.",IPYc dnvir,05 omh9liflit t.,V,irviislot: Oar ciaEf3r8`➢e
Biological Filter . .:, , .... , ,� :- . . .:• ; . • • :,:
) 0.
(37)i oyorse OSMOSIS. A lroalmoril process in Moan a heavy colla:rninaled FquId is prosvirized
(TV) Aerated Lagoons :. . . . , .
t' 0
through xa membrane forming nearly pure liquid "reo from suspended solids;
't
4tir C}tB(in IGIv IC ? Contactors _ . ::
t 0
(38)RoWing Biological Coniactors= ,^A fkxod biological growth fzreoess wh:cd vast velar ljotvs
Tanks in series
through which a of partially submerges" circular surfacus are rotated;
(34)Sand f^iiters:(a)lmerrnil#ant Eiolugbal, »<aoltrataon of effiuent following septic Tanks, lagoons; of
son other treatment process In which further biodecornposifion is expected gr produce desired
etdluonis htydrauiac loading rates on thris:e fillers are computed in gpdtac and have a resulting low
girmisf (bass than ono), (b)Recirculatng biological - the same type of sand filter as defined In (a) with
The added capability to recycle alfiriont back through than sand titter;

�• t1) Aerated Sludge Holding Tank - (e) r'lect od alyss on
oarn Sd aratio Sludge lncnrrator - (not including .
activated
(g) icn Exchange ..... carbon regeneration) §
(h) Land Application of treated Effluent (k) Vacuum Filter, Centrifuge or filter press or ether
(see definition no22✓) (not applicable for
similar dewaternrnp devices
sand, g;ravei, stone and other similar mining
SLUDGE DISPOSAL (including incinerated ash)
operations)
(i on agrinuitur culturally managed ~sites (See def. a La corns
(b) Land Application (surface and subsurface)
No. 4) .. * ... .............. 0 (see definition 22ra)
(ii) by }nigh rate infiltration on non- griculturally -where the facility holds the land app, permit a , t
managed sites (includes rotary': distributcrs tin. to a land application operator wh
- con
tracting a t,�
b �trnt �t
.
�. . _r - ^;* are^ ` ., ^� 4-
.
;:nincf sinni6ar Rn;�cr.f nrn. 2..tr, s; .�tcr=n,�) , .. , . hcitds the nand dWnpplio�ntncarn pertrrit . , ... , , .
(%ii) by subsurface disposal (includes low pressure -'land ap Cicaiion of sludge by a contractor who does
pipe systerrn"s and grsrvity systems except at not hold the permit for the wastewater` treatment
plants consisting of septic tank and nitrificu facility where the sludge is generated ..... , , .. 1
limn lines only) .... ,
(�i( Microscreens, .. _ ...... . .... . . ........ b
... () DiSiNTiN
(1) Phosphorus Rernovat by Biological' Processes'
E�) .. .
() Chlorination
(Pee def. No. 220 ....: . ; .. , ..
(� �echler�nation ..
(k) Polishing .� Ponds A. without aeration � (c) Ozone ...: , , ...�, ... ; :.... "
with aeration , .. 5 (d) Radiation
(l( Post Aoratiorn cascade 0
rtpt CHEMICAL ADDI l N SYSTEM (S) (See, definition No, 9 _
0fused or nnech an�cal t
fr?`n) Revea'se 0sni�. ss .... . . ,.
g pS a i a ��ndiGaran r,xtr�cl a at�.krra
r ou
(b), (y) ibi, (7) se„
nest n . lic.nie 9c n arnrrrrnc
(n) Ss'�nd or t~a#i.r>sd-ferizn yi[tr"#rs - is rate .. , ... a .... ,� ((t t{ � (} (� t f
high rate ..... , ... ( (a) ((b), (.) points each: List:
5
(0( Troot rrno n t proc
esses os far removal of metal or
_
cyanide, . , . , ....... 5 5
l
(p) TT'eatrnent processes for removal rat toxic d � _ � 5
materials other than metal or cyanide ...... , .. f ,.
(7) SLUDGE TREATMENT MISCELLANEOUS UNITS
k o n ank n lmrr ate o (a) Holding Ponds, Holding Tanks or Settling Ponds
(a) Sludge Digestti r . ,
e cloip ............:. 5 for Organic or "toxic Materials Including wastes
from mining operations containing nitrogen and/or
Unheated . , .... . 3
(,
(b) Sltndge Stabilizationphosphorous compounds in amounts sigrdficaintly
(chemicalor thermal) 5 greater than is common for domestic wastewater .:,....,.. 4
(c) Sludge Drying Beds carpvity .:.... .........
Vacuum assisted ..... ; . 5 (b) Effluent Plow Equalization (not applicable to storage
basins which are inherent in land application system
(d) Sludge E"Eutriation .... 5 (c) Stage Discharge (hot applicable to storage basins f
(e) Sludge Sornd'rtilone:r (chemical or thermal) 5
inherent in land applicationsytatrns
(f Sludge Thickener (gravity).. 5 ..... .
(g( Dssolved Air Tlotatn'o n Unit (e) Stand -By lower Supply
(moot applicable to a uins' rates a s (w) (i)
ma n
t
µ (f) Thermal Polltntro Control Devrce..
t,vt31!, .iE t =n r;ri,
(

rl�
']
TtiTa POINTS
(vi) and F-ilteis
pry^y �^yry �y4 ,+ rv+,ry
II9t4r,+d ti d€twYil �: ti.f'IJFt,.a 4i� , , a.
2
recirculating blological
3
CLASSIFICATION
(vii) Stabilization Lagoons . . .: . .............:
5
�Plass ......:......... ....... ..... a.., ........,; g - g Point
(viii)Clarifier ..... . . . ..... . ...: : ... . .....:.
(ix) Single stage system for ornbiuned
5
s'll ......... ........ . ......... . 6- 50 Points
carbonaceous removal of BOD and
Class ,. 1- 65 Pointy
nitrogenous removal by nitrificaho
Class IV... ..... .......:. 6 - Up Points
(see def. No. 1 (Points for this item
have to be in addition to €urns (5) (a)
Fa ties having a rating of one through four points, inclusive,
(I) through 1(5) (a) (yiii) . . ................
g
do' of require a certified operator, Classification of all other
(x) Nutrient additions" to enhance BCD
faaNties requires a comparable grave operator in responsible
removal . .... . . :::.....,... , .... , . , ...., „
'
charge.
(xi) Biological Culture ("Super Bugs") a. dlticn
to enhance organic connpound rernov^al .. , . ;
5
Facilities having an activated sludge process wdl be assigned
(b)
Nitrogenous Stage
a, minimum classification of Class ll.
(i) _ Aeration - High PLirlty Oxygen Systern
20
Diffused air Sysl m ...... , . ...
10
Facilities :having treatment processes for the removal of metal
Mechanical air System, (fixed,
or cyanide wifl be assigned a minimum classification of Class It<
floating, or retort .. ,:.. , ......
8
Separate Sludge Reaeratlori ...
S
Facilities having, treatment processes for the biological removal
(ii) Trickling Filter
of phosphorus will be assigned a minimum classification of Class,
sigh fate ..... .
III:;
Standard Hate ... , ....: ,
d
p rflTlca fs'
Pricked To"wor
(iii) Biological aerated Filer orAerated
(I)Activafed Carbon Beds, A physcahchernbaf method for reducing soluble organic material from
Biological Filter . .. . . . . . . e : , ; . ..
1
wastewater effluent; the cotvmn-typpa bads used in this method will have a flow rate varying from two
(iv) Rotating Biological Contactors , :e , .'
1 0
to eight gallons par minwe per squarer loot and may be either upflow or down9icw carbon bads. Carbon
, .
(�� Sand Filtfsr`-
may car may not be regenerated on the was➢ewator treatment plan[ silo,
(S)Aaraled Lagoons. A basin in which all solids are maintained fh suspension and by which biological
intermittent biological
oxidation ,or organic matter is reduced through artificially accelerated transfer of oxygen on a flow-
recirculating biological;� , ..
through bag,
(3)aaratioirb. A process of bringing about intimate contact between air or high purity oxygen in a liquid.
. .
(vl) Clarifier. .... . . . :.... . :.....:... . ...
by spraying, agitation d'affus'ion°m
(4)Agricullurally managed shoe Any site on wnici, a crop is produced, managed„ and harvo tod (Crop
Includes grasses, grains, tieus, etc);
(6) TERTIARY
OR ADVANCED TREATMENT UNIT
(S)Air Stripping, A process by which the ammonium ion is firs! -converted to dissolved ammonia (pH
�a)
Activated Carbons ��
adjustment) with the ammonia then released to the atmosphere by physical means„ or other simhar
without carbon regeneration , .
C
processes Which rsmov® petroleum products such as benzene, toluene, and xyiene,
fg)Carbon Regeneration. The regenpraiicn of exhausted carbon by the use of a.furnaxe to provide
with carbon regeneration , , . . . . . . . . . .
1
exlseawely high temperatures which volatilize and oxidiza the absorbod impurities:
(p )
Powdered or Granular Activated
a:Carbon Peed
(7)Carbonaceous Stage, A stage of wastewater treatment designed to achieve 'secondary' $alfluanti
without carbon regeneration . ,, . . , , , . . . . ; . .
5
limits,
st)Cenfrsduge, A mechanical device in which cenuilvgal farce is used to separate solids from liquids,
with carton regerteratSot ,
15
andlor to separate liquids of different donsilies,
(C)
Air Stripping , „ . , , .. . . . . . ,
(3)Charnical Addition Systems . The addition at chemical (s) to wastewater at an application point for
(d)
glenitriflcation Process (separate process)
Purposes of improving solids removal, pH adjustment, alaaiimly control, atc.; the capability to
experiment with different chemicals and different application points to achieve a specific result wh( be
ocnside t one system, the capability to add chemical (a) to dual units wilt be rated as one systorn:
oapabi -to add a chemical at difference application points for different purposes will tosull-in lhu
'•.
5 p'S (att't :: ing
rate as soperate ysto m,.
110)Chemical $iudga Conditioning, The addition of a chemical compound such as time, ferric chloride, or
a Polymer to wet sludge to coalesce iP e mass o'rioa to its application to a dewatering device;

E 14ITS AND ENG' ERING UNIT
P P 7 - WATER QUALITY SL�.. ION
DATE: November 15, 1990
NON -DISCHARGE STAFF REPORT AND RECOMMENDATION
COUNTY Cleveland
PERMIT NUMBER WQ0004097
PART I - GENERAL INFORMATION
1. Facility and Address: Arey Oil Co, One Stop #4 Earl
1906 E. Dixon Blvd.
Shelby, NC 28150
2. Date of Investigation: November 14, 1990
3. Report Prepared By: Jim Reid
4. Persons Contacted and Telephone Number: No one on location;
Inspection conducted by observation and plans scrutiny.
5. Directions to Site: Facility is located at the
intersection of SR 1100 and Hwy 180/226 south of Patterson
Springs in Cleveland County.
6. Size (land available for expansion and upgrading):
Approximately 1000 square feet.
7. Topography (relationship to 100 year flood plain included)!
lot is composed to two flat terraces above flood plain.
Attach a U.S.G.S. map extract and indicate facility site.
U.S.G.S. Quad No._.__..li. uad Name Blacksburg North_
8. Location of nearest dwelling and water supply well- nearest
dwelling 300 feet, nearest well, 100 feet-
9. Watershed Stream Basin Information. -
a. Watershed Classification: Class C
b. River Basin and Subbasin No.: BRD 03-08-05
C. Distance to surface water from disposal system: >500 feet

FrARTII - DESCRIPT,wi,4 OF DISCHARGE AND TREATME.,,-, WORKS
. Type of wastewater, sludge or contaminabed soil:
Domestic
100 Industrial
a. Volume: 0.0058 5 MGI) (Design n Capacity)
h. Types and quantities of industrial wastewater:: 0.00588 MGD
treated groundwater f rom petroleum contamination
attributable to a leaking underground storage tank.
C. Prevalent toxic constituents in wastewater Benzene,
Toluene, Xyl. ne, Ethylbenzene
d. Pretreatment Program POTWs only): N/A
in development approved'
should be required _.w _ ` not needed ._ a
2. Production rates (industrial discharges only) in pounds per day:
a. Highest month its the past 12 months: lbs ay
b. Highest year its the past years: lbs °day
3. Description of industrial process(for industries only) and
applicable Fart and Subpart: N/
e of treatment (specify whether proposed or existing)
Proposed, physical separation followed by aeration and,
infiltration.
. Sludge handling and disposal scheme No sludge will be
generated.
6. Treatment, plant classification: fica:tion: Less than 5 paints, no rating
( include rating sheet,' if appropriate). Not rated.
7. SIG G de( ). 5541
WastewaterCodes): Primary- 66 Secondary:

F2.
d.' II - OTHER PERTINENTINFORMATION
I I_I this facility being with Construction gat funds
(municipals only)? No
. Special monitoring gists: No
Other:
PARS" VALUATION AND RECOMMENDATIONS
Issuance Non --discharge Permit is recommended.
Signatureof Report Preparer
r
WateriSupervisor
ite��/,

BLACKSBURGNOR C
NORTH CAROLINA-SOUT�
r.
j€ 'Tt3
Cm FNEY
QliAtIRAI
_50000 F £a n �e .„
.,
f p ,^
76
"C.� -" ' Ft g � r C-
y4 t i
f"" f
r r
3!
ri
-j
0 J
P Ae
s '
w t
Yd _4 y 8 4 f9
r
_,tr w.Jgr- tia.ed t',.,,�
� fr.4[�f
1 ,x�
t a
14,
T
471
L
r
,,r;�
ndU3
k4it1asC 1
s'ts` ram°
-3
t '
t'181
�x
@fire
"
3
t(
No
k
"

6701 Carmel Road
Suite 200
Delta
390 Charlotte, NC 28226-1
Environmontat
"AfAlk Consgat tants, tne. 7051541-9890
FAX, 704,1543-4035
jqC. IDEPT, OF NATIMAL
oe I E I N" T
Y WrAl"t
September 5, 1991 2 1991
North Carolina DepartmerNk"fi0tondent
Health and Natural Resources
512 North Salisbury Street
Raleigh, North Carolina 27611
Attention: Ms. Carolyn McCaskill
Water Quality Section
Subject: Revised Location of Infiltration Gallery
Arey Oil Company
One Stop # 4
Earl, North Carolina
Delta No. 50-88-564.02
Dear Ms. McCaskill:
This letter is to inform you of the need to change the position and orientation of the infiltration
gallery at the referenced site. Ali the appropriate approvals and permits (No. WQ0004097) have been
received for the ground wrater treatment and disposal system at the site and we are ready to begin
operation of the system. During the course of system installation it was determined that the approved
location of the infiltration gallery (Figure 1) would probably cross the right of way around an existing
high pressure natural gas line. Safety and right of way concerns necessitate an alternative location
for the gallery. The proposed new location of the infiltration gallery is shown in Figure 1.
Other than its location, the gallery will be identical to the one proposed in the Geology and
Engineering Report submitted to your office in June 19901 ' Soils in the vicinity of the new location
are identical to those in the original locale. Ground water flow models (RESCUE) taking into
account the hydraulic conductivity and optimal pumping rate (determined by a 24-hour pump test)
in the recovery wells on site show that the alternative location and orientation allow for better capture
of re -infiltrated water than the original location. Ile plots of the models are attached.
Delta Delivers Solutions

• * 3
Revised Location of Infiltration Gallery
September 5, 1991
Page
We are ready to begin temediation of the contaminated soil and ground water at the sites soon a
the new location for the gallery Is approved. Please gave this matter your immediate attention and
it me if you have any questions.
Sincerely,
i"ENTAL CONSULTANTS,
�. 11 "111 " ?Z'�
l %arII Gauthier
G/ ga
cc: Mr. Michael Parker, Mooresville DEHNR
. Robert Arey, Arey Oil Company
Donna ail " e, Delta Environmental Consultants, Inca
. Stephen Zbur, Delta Environmental Consultants, Inc.

i
?'03 BODY SHOP
RODY O � � �" � � HIGH
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SCALE E"
FIGURE
SUPPLYLEGEND: PROPOSED INFILTRATION GALLERY
WELL LOCATION
PROPERTYF IL CO.
GRASSY AREA EARL, NO
PROJECT' NO. 'PREPARED BY
50-88-564
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244
AFTER 100 YEARS

244

IN
U "} 1
State of North Carolina
Department of Environment, Health, and Natural Resources
vlcroresville Rr gjotial Office
James G. Mirtiti,. Gcwerrior Albert F 1-filLon, Regional I'Aana er
William W, Cobe)� Jr.,, Secretary
DIVISION OF ENVIRONMENTAL MANAGEMENT
May 24, 1991
rRobert Are
�i
Grey oil l ompany
1906 E. Dixon Boulevard
Shelby, North Carolina_28150
Subject: Permit No. WQ00040,97,
ey Oil Company
One Stop No. 4, Earl, NC
Groundwater Remediation System
Cleveland County, NC
Dear Mr. Ary
Our records show that Permit No WQ00 40 7 was ,issued. on` May
0 1991 for your non -discharge wastewater treatment facility. The
purpose of this letter is to advise you of the importance,of the
Permit: and the liabilities in the event of failure to comply with
the terms and conditions of the Permit. If you have not already
dole so, it is requested that you and other appropriate employees`
thoroughly read the Permit.
The hermit sets forth specific performance standards,
operation and Maintenance requirements, monitoring requirements,
s
plus general conditions applicable to non -discharge permits.
Failure to comply with the terms and; conditions of the Permit
subjects the Permittee to enforcement action pursuant to Section
143-215.6 of the North Carolina General. Statutes in the form of
civil or criminal penalties
Please note that the subject Permit'expires on April 30, 1996.
Part VI. 10. of the Permit requires that a renewal request be
submitted at least six ( ) months prior to expiration. Also the
Permit is non -transferable until such time that the Permittee has
requested a name change to the new Permittee.
r119 North Nlain Ercer Nloor,xcvfflf% N.(; 28115 'r:: upP~onc 7 (�'�(, ;3 66',N * I AX 7 4 663 C ,10
.A,i t'Cxar, l l'trvrx rrtu sx5'si^ti.r Ah-i am-k- A-",, V,,r 1.......

r.
Y
Mr. Robert .grey
Page Two
May 24, 1991
As mentioned previously, the purpose of this letter is to
advise you of the importance of your Permit. Please read the
Permit and contact this office 0/-1 in Mooresville if
you have any questions or need clarification. look forward t
providing any assistance.
Sincerely,
NI-
. Rex Gleason, P. E.
Water Quality Regional Supervisor
KH : % c

James , Hunt, Jr., Governor
Jonathan B, Howes, Secretary
A. Preston Howard, Jr., P._ Director
-ey Coil Company r � ..
�,d
1906 Fast Dixon Boulevards
Shelby, NC 28150
4Ri
Mr. Robert Arey
President
" 1 £.'...
SUBJECT:' Permit No, WQ0 40 71 W95209ss a
..<
:rey Oil Company
5
One Stop;##4, Earl Facility
Groundwater Incident No. 313 0t k a
Groundwater Rernediation Facilities
Cleveland County
Dear Mr. °ey:
In accordance with the policy of the Division of Environmental Management to ensure the
good quality ofN rth Carolina's groundwater, the referenced Permit requires several activities related
to groundwater monitoring. The following guidelines and forms are presented to assist you in
complying with those requirements. If you have any questions concerning these matters, you should'
contact Sherri Knight at the address shown below to discuss the requirements relevant to your
specific facility-,
Winston-Salem Regional Office
585 i au hto n Road
Winston-Salem, NC 27107
(10) 771-4600
Groundwater Condition No. I.- Sampling of the influent and the effluent from the
treatment system on the schedule and for the constituents listed below:'
The influent and the effluent from the treatment system shall be sampled every
month.
QQ_NSjLjLj_1�M: IPA MTBE
'volatile Organic Compounds — y Method I below
Method r Method a (Capillary - Column), "Standard ethods for the
Examination of Water andWastewater," 17th ed., 1989
Groundwater Section, CVoice 1 -75 -5 7 FAX 19_715- 8
P.0, Box 9578, Raleigh, Worth Carolina 75' 5-057 fir" l ua9 Opportunity"r�t�irativ ActionFr�pl }�er
2728 Capital Blvd., Raleigh, North Carolina 27604 509% recycled/ 100% post -consumer paper

ir. Arey
March 2 8, 1996
Page 2
The results of all analyses specified in the monitoring requirements roust be submitted
simultaneously,
11_
cagy ofthe 1 star require ants iar I drmit fi fl004097 is attached for your reference,
If you have any questions, please do not hesitate to contact nee at 919) 1 -616 .
Sincerely,
Cynthia A. Boyles
Hydrogeological Technician II
Permits and Compliance
Groundwater Section
Attachments
cc:Ch
Compliance onitorinFiles

The influent and effluent from the treatment system shall be sampled monthly for the
parameters specified below
IPE
MTBE
Volatile Orgnunc Compounds --(by Method listed below)
EPA NNIethod 6230D (Capillary - Column), "'Standard Methods for the Examination
of Water Wasten 17 edition, 1989,
;,,er
.16
The results of the sampling and analysis shall be sent to the Groundwater Section, Pen -nits
and Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 within 30 days of
sample collection.
2, Anv additional groundk-vater quality monitoring, as deeined necessary by the Division, shall
be provided.
All components of the groundwater, recovery, treatment, and disposal system shall be
properly weather -proofed to prevent freezing and failure of the system,
4. The groundwater recovery, treatment and disposal systern shall be inspected weekly. If it
is determined that the system is malfunctioning, all repairs should be made as soon as
Z:1
possible and reported to the Mooresville Regional Office %vithin 48 hours.
5 The effluent from the rernediation systent must comply with the groundwater quality
standards contained in 1, 5A NC AC 2L .0200 prior to discharge into the infiltration gallery.
!,\SI�ECTIQNS
I Adequate inspection, maintenance and cleaning shall be provided by the Permittee to insure
proper operation of the subject facilities,
The Peri-nittee or his designee shall inspect the groundwater recovery and treatment
facilities to prevent malfunctions and deterioration, operator errors and discharges which
C-1
rniv cause or lead to the, release of wastes to the environment, a threat to human health, or a
nuisance. The Permittee shall maintain an inspection log or suit imary, including at least the
date and time of inspection, obsersations made, and any maintenance, repairs, or corrective
actions taken by the Permittee, This log of inspections shall be maintained by the Permittee
for a period of three years from the date of the inspection and shall be inade available to the
Division of Environmental Managernent ear lather permitting authority, upon request.
3 Any, drily authorized officer, employee, or representative of the Division of Environmental
ManaiLyernent may, upon presentation of credentials, enter and inspect any property,
premises or place on or related to the disposal site or facility at any reasonable time for the
purpose of deterntining compliance with this permit, may inspect or copy any records that
roust be maintained under the terms and conditions of this pernsit, and may obtain samples
of -roundwatcr, surface water, or leach ate;
GE.NER:fit CONDITIONS
1, Issuance of this permit does not constitute approval for reimbursement from the LeakIM!
Petra letirn Undern*round Storage Tank Cleanup Funds (15 A NCAC 2P).
2, 'This permit shall become voidable unless the facilities are constructed in accordance with
the conditions ofthis permit,, the approved plans and specifications, and other supporting
data.
3

July 19, 1995
ROBERT ABLY
IF AREY OIL CO. -ONE STOP # 4
1906 EAST DIXONLLD.
SUBJECT: MI NO. WQ0004097
AREY OIL CC1 t -ON TOP it `
CIZVELAND COUNTY
Dear Permi.tt:ee
Our file, indicate that, the subject permit Issued on .5j 0]. expires rrrr
u ftf fr. We have not received a request for renewal from you as of this date,
renewal request shall consist of a letter requesting renewal and completion of
the enclosed application, submitted in triplicate. A processing fee must be submitted
with the request. Please find attached a copy of the 15 I C C 2H .020 c regulations.
Ile processing fee for your facility is braced on the design or permitted flow,
whichever is appropriate, listed in the fart four categories of fac l i.tle . Sludge
renewals are based on totalacres of land permitted. If the facility covered by this
permit contains aeume, type of treatment w rlc , a narrative descripton of the sludge
management ent plan that is in effect' at the facility must be submitted with the
application for renewal.
The Environmental Management ent Commission r adopted revised rules can October 1, 1990
(attached), requiring the payment of an annual fee for most permitted facilities. You
will, be billed separately for that fee (if applicable), after your permit- is approved.
Please be advised that this permit must not be allowed to expire. If the: renewal.
request is not received within 180 days prior to thepermit's expiration date as
required by 15 NCAC 2H .021 , you will be assessed an nuu.tomat:ic civil penalty. 11ala
civil penalty by North Carolina Clenerwn;i Statute may be as much as $tO,000 per day. If
a permit renewal request Is not received 180 days before permit; expiration, a civil
penalty of at least $250 will be assessed. Larger penalties may Nye assessed depending
&& N Y p
itlll± yy,,6 It'y.}}���pp��
Moa

Page
on how late the request is made. In addition, any permit renewal request received
after the permit's expiration date will be considered, as a new application ands ill be
required to pay the higher Permit application fed,
:e letter requesting renewal, along with as completed Non -Discharge, Permit
application and appropriate, ;standard fee, should be sent to -
Permits ad Engineering Unit
Division of Environmental Management
P. 0. Box 29535
Raleigh, North Carolina 27626-0535
The check should be made payable to the Dearth Carolina Department, rtmea t Environment,
Health, and Natural Resources (DEII'NR
If you should have any questions or need any additional ail. information regarding this
matter, please se contact me at 1 7 3-5d W
Sincerely,
Angola Y. Grifiin for
Carolyn McCaskill, Supervisor
State Engineering Review Group
CC. Mooresville Regional Office
Permits and Engineering limit
Central File

DIVISION A
GROUNDWATER1Y
October 25, 1995 NXI DE(�F
r ,
MEMORANDUM
u
TO Carolyn McCaskill
OILBob Cheek
OM- Cindy Boyles
SUBJECT: Arey Oil Co, One Stop
Groundwater Incident No. 3130
Groundwater R mnedlation System
Cleveland County
/G
(Johne o :'DEM SERGReview Engineer)
The Groundwater Section has reviewed the subject permit renewal application for the
continued operation of a groundwater rernediation system for grey Oil Company's y's One Stop #4 site,
t consists of a 2,500 GPD groundwater re mediation system with aeration tanks, two
recovery yells, an oil/water separator and an infiltration gallery. The Groundwater Section
recommends new of this permit based on modilymig e design capacity of the re ediat om
system from 5.80o 2,500 GPD(see introductory paragraph of current permit), an
including TBE and YPE in the influentlefTluent monitoring requirements (see permit
conditions). According to the Mooresville Regional Offence Groundwater Section,, the
infiltration gallery appears to be unable to effectively disperse the volume of water generated
by the recoverywells pumping at the maximum rates stated in the appliation. The Regional
race's review of the infiltration gallery design revealed that five ( feet of the side tills were
used to calculate time surface areaand, therefore, the capacity of the infiltration gallery. It only
the surface area 00 square feet) is used to calculate this maximum capacity of the infiltration
gallery, it works out to be 2,500 GPD. The Groundwater Section recommends renewal of time
permit with the following conditions:
1. The influent and effluent from the treatment system shall be sampled monthly for the
following pararneters
IP
MTBE
Volatile Organic Compounds ounds -- (by Method listed below)
EPA Method 6230D (Capillary- Column), "Standard Methods for the
Examination of Water and aste atee% 17 edition, 1989.
Different language from previous permit.

Memorandum
October 25, 1995
Page
*2 The results of the sampling and analysis shall be sent to the Groundwater Section,
Permits and Compliance %knit,, P.O. Box 29578, Raleigh,? 2 - 5 ' ith thirty
days of sample collections
3, Any groundwater quality monitoring, as deemed necessary by the Division, shall be
provided.
a All components of the groundwater very, treatment, d disposal system shallbe
properly weather -proofed t prevent freezing and failure of the system.
5. The groundwater recoveM treatment and disposal system shall be inspected weekly.
If it is determined that the system is malfunctioning, all repairs should be made as
soon as possibly and reported to the Mooresville Regional Office with 49 hours.
.. The effluent from the r mediation system rust comply with the groundwater quality
standards contained in 15A NCAC 2 .0200 prior to discharge into the infiltration
gallery;
If there are any questions, please contact me at 919- 1- 1 .
CAB
cc:
Central Files
Permit Tiles
GW95209.REN
*� Different language from previous permit.

1TO
M8m0AA9DUM
TO:
jp/v V1 i Regional Office
r
FROM: e S
SUBJECT: Application for Permit Renewal
Permit Amendment
New Permit
Facility Name:
County:
Type of Project: lixel e �401 e C�/4
-q, f (-�v
KENN i
APPLICABLE PERMIT NO. S. WQ GWJJ--- _-
------ =� :5 1 0 qi
DER A to C
UIC EPA CUA
fat 1 14 1 11� r� M a 4, A
,J eylofl
The Groundwater Section has received a copy of the referenced permit
application, a copy of which should have been sent to your Regional
Water Quality Supervisor - IF A COPYHAS NOT BEEN RECEIVED IN THE
RECNAL OFFICE, PLEASE LET ME KNOW.
The Groundwater Section has received a copy of the referenced permit
application. A copy of the application documents we received is
attached.
The Groundwater Section has received a subsurface disposal project
from the Div. Env. Health's On -Site Wastewater Section. A copy of
the application has been forwarded to DEH's Regional Soil
Specialist, Please coordinate your review with
that Soil Specialist.
\TRANS.SHL

Division of Environmental age .
Date
MEMOEMDUM
To: Bob Cheek, Supenrisor
Penifts & Compliance Unit
Groundwater Section
a
w
From:— `„ Project Engineer
Pe is & Engineering Un.
Water Quality Section
Subject: Groundwater Review`
Non -Discharge Application No. I
.n
° e
Facility
es e " t � R "
e
County:
(GW #
.�
Attached you will find plans, specifications, and supporting infonlKition
for the above project.
Please let me know whether you Nvill or will not be conducting
extensiveof the subject project by
If 1 can provide additional information, please contact me at ext,
will
f) The Groundwater Section Nvill not conduct an ex-tensive
rmiew of the subject.
Ground­,vater Section will not reviexv application for the reason
listebelow.
() A request for additional Information will be fonvarded to you by, the
revievver listed below,
GW Reviewer: �A-/,j late; � r
9/6/90

State of North Carolina
Iment of Environment, Health and Natural Resources
Division of Environmental Management
Noti-Discharge Pem-dt Application Form
(THIS FORM MAY BE PHOTOCOPIED FOR USE AS AN ORIGINAL) Aga
GROUNDWATER REMEDIATION SYSTEMS
This permit application forni is for systems which use either infiltration galleries or injection wells to discbar e treated groundwater
9
into the subsurface, Fach section of this application must be completed unless other -wise noted, Contact the Groundwater Section at
[phone] to obtain Groundwater Remediation System Pe it Application Guidelines,
L GENERAL INTORNIATIONI-
I Applicants name (please specify the name of the municipality, corporation, individual, etc,), -
Mr. Robert Ares
2 Print Owners or Signinit Official's name and fide (the person who is legally responsible for the facility and its compliance):
irA Rob&rt­Arey - President
3 Ma line, address: Arev Oil Co.. 1906 East Dixon Blvd.,
CiIN: NC 28 150'.­i
State- Zi
— p:
Telephone Number: 704 4821445
4. ReniediaLion Site 0,xncr; —Federal" State, -1— Private, — Public: —Nadve Anterican Lands,
Other (specify)
5. LiSt the principal prc)ducts or services provided by facihty. Gasoline Stati,on/Grocery Store
6. Project Name (please specify the narne of the facility or establishment - should be consistent on all document's included in
this application package,
One Stop #4
7, Groundwater Incident Number (if known):
8, Location of Remediation Activities (Street Address): Highway 180
ciry. Earl State: NC 28038
dip: ---
9, Latitude;_ N 35007' _;Longitude _E 81'' —ofRemethadonActivities
10, Contact person who cart answer quesbons about application:
Narne: M r Telephone number-. (__-Z 04 ), 54 1-9890
11, Application Dare'
12, Fee Submitied: S 200 — The permit processing fee should be as specified in 15A NCAC ply .0205(c)(5).]
13, County where project is I(N--ated: Cleveland
14 . Is this application for facilities subject to UST Trust Fund reimbursement? —1— Yes; — No.
15, Has a comprehensive site assessment and corrective action plan been Submitted and approved for dris prqject? Yes;
-- No, Please provide two (2) copies of each and two ('I) copies of the approval letter (if applicable).
FORM: GNA*RS 06/94

Narric and Complete Address of Engineering Firm- Delta Environmental Consultants, Inc,
6701 Carmel Road, Suite 200
Charlotte — NC Zip, 28226
704 541-9890
Profession2l Engineer's Certification:
, attest that this application for
Its,, hcen reviev, ed bv rrie aind is accura[e and complete to the best ofniv knowledge, I further attest that to the lhes,, it my knoNvIcilge
Lh,c pclpcs,,d has bee.-., prepared in accordance with die applicable regulations. Although certain ponjon,,� of this submittal
77,ay N,,en deNcloped b� tattier professionals, incluicin of these materials undermy signature and scal . Fziifics that J have
and hatejudged it to be consistent with the proposed &sivu,
Enanteer's Seal, Signature, and Date�
C,
Applicant's Certification:
1. attest that Lhis application for Al±y 0ilgRriparty'
____
has b-zer. 7e%re,,ked lt�N ine ancl i; accuratc and complctc to the best of rn, knowledge. I undersimid tlai if all requires! par-Lsof this
applicad on are nocwnplewd and Uiat it all required supporting information and attachment s arc not included, Lb,.s application package
,,� ill b12 returned tcs
signa"u're 11—i --I----.-- Date
THE COMPLETED APPLICATION PACKAGE, INCLUDING ALI, SUPPORTING INFORMATION AND
MATERIALS, SHOL1.1) BE, SENT TO THE FOLLONVENG ALDDRESS,
NORTH CAROLINA DIVISION OF ENVIRONMENTAL NIANAGE.MENT
WATER QUALITY SECTION
PERMITS AND ENGINEERING UNIT
POST OFFICE BOX 29535
RALEIGH, NORTH CAROLINA 27626-0535
TELEPHONE NUMBER: [phone]
FORM: G)A*RS 06/94 Page 8 of 9

nSIA
T�Ir t
State o h Carolina
Department of Environment, Health and Natural
Division of Environmental Management RAL
51Nardi Salisbury Street * Raleigh, North Carolina 27626-0535
James G, Martin, Governor
William W. Cobey, Jr., Secretary
Tv r. Robert Arey
Arey Oil Company
1906 E. Dixon on Boulevard
Shelby, North Carolina 28150
Dear Mr, Arey:
George T. Everett, Ph.D.
Dirsi r
May 20,1991
,a
Permit . WQ0004097
Arey Oil Company
One Stop No. 4, Earl, N,C.
Groundwater Remediation Sy4em
Cleveland County ...a
1n accordance with your application received September 7, 1990, we are forwarding
herewith Permit No. WQ0004097, dated May 20, 1 91, to Arey Oil Company for the construction
and operation of the subject groundwater retnediatiern and infiltration gallery disposal system,
This pe ut shall be effective from the date of issuance until,,,kpril 30, 1996, and shall be
subject to the conditioris and limitations as specified therein. Please pity particular attention to the
monitoring requirements in this pen -nit. Failure to establish an adequate system for collecting and
maintaining the required operational informationwill result in future cornplia.n e problems.
If any parts, requirements, or limitations contained in this permit tire unacceptable to you,
you have the right to request an radjudi atory hearing upon written request within 30 days
following receipt of this perinit. This requestmust ust be in the form of a written petition, conforming
to Chapter 150B of forth Carolina General Statutes, and filed with the Office of Administrative
Hearings, I .O. Box 11666, Raleigh, h, NC 27604, Unless such demands are made this permit shall
be final and binding.
One set of approved plans :and specifications is being, forwarded to you, If you need
additional inforraa ation conceming this matter, please contact Mr. John Seymour at 919/ 33- 083.
cc:
��'' iraurely
ecrr e T.
Cleveland County 1-le ith l epar-tnie
Mooresville Regional Office
Groundwater Section
Training -and Certification
Delta Environmental Consultants, Inc,
Facilities Assessment
Pollution Prevention Pays
An Equal t )lmrtunity Arfimiative Action Employer

NORTH L IN
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT ENTF ENVIRONMENT, HEALTH AND NATURAL URCE
INFILTRATION GALLERY PERMIT
1n accordance with the provisions of Article 21 of Chapter 143, General. Statutes of North
Carolina as amended, and other applicable Laws, Mules, and Regulations
PERMISSION IS HEREBY GRANTED T
grey Oil Company
Cleveland County
FOR
construction and operation of a 5,800 GPD groundwater remediation system with an infiltration
gallery and soil venting consisting of two recovery ells each with a 7 gpm pump, a 1,00
gallon oil/,water separator, a 550 gallon product holding tank contact chlorinator, two channeled
diffused aeration tanks in series with a 600 cfrn blower, a totalizing flaw teeter, a 110 gallon
transfer tank with transfer pump, a 6 foot by 50 foot infiltration gallery with two pie ometers, a 50
cfrn regenerative vacuum pump with inlet coalescing and particle filter, and associated pumps,
piping, valves and appurtenances to serve One Stop No. 4 of Arey Oil Company in Earl, North
Carolina with no discharge to the surface graters, pursuant to the application received September 7,
199and in conformity ity with the project plan, specifications, and; tither supporting data
subsequently filed and ,approved by the Department of Environment, Health and Natural Resources
and considered a part of this permit,
This permit shall be effective from the date of issuance until April 30, 1996, and shill be
subject to the following specified conditions and limitations
L)ERFORMIANCE STANDARD�S
1, Upon cr rnpletion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the
permitted facility has been installed in accordance with this permit and the approved.
plans and specifications. Mail the Certification to the P'e=rrnits and Engineering Unit,
P.O. Box 29535, Raleigh, NC 27626-0535.
2. The Mooresville Regional Office, }Torre no. 704 63-I p shall be notified
at least forty-eight (4 ) hours in advance of operation of the installed facilities s ,
that an in -place inspection can be made. Such notification to the regional supervisor
shall be trade during the normal office hours frorn 8:00 a.rri. until 5:00 p.m. or
Monday through Friday, excluding State Holidays,
This permit shall become voidable if the soils fail to adequately absorb the wastes
d may be rescinded unless the facilities are installed, maintained; and operated in a
manner which will protect the assigned water quality standards of the surface waters
and ground waters.
1

he event that the facilities fail to perform satisfactorily, including the creation of
iance conditions, the Permittee, shall take immediate corrective action, including
se as may be required by this Division, such as the construction of additional or
�acerrrent treatment or disposal facilities.
5. The issuance of this permit shall not relieve the Permittee of the responsibility for
damages to surface or groundwaters resulting, front the operation of this facility.
. Any sludge generated from these treatment facilities must be disposed of in
accordance with General Statute 1 -21 .1 and in amanner approved by the. North
Carolina Division of Environmental Management.
7 Diversion or bypassing of the untreated groundwater from the treatment facilities is
prohibited.
1 The facilities skull be properly maintained and operated at all times
Upon classification of the facility by. the Certification Commission, the Permittee
shall employ a certified wastewater treatment plant operator to be in responsible
charge of the wastewater treatment facilities. The operator must hold a certificate of
the type and grade at Least equivalent to the classification assigned to the wastewater
treatment facilities by the Certification Commission. Dace the facility is classified;
the Permittee must submit a letter to the Certification Commission which designates
the operator in responsible charge within thirty days after the wastewater treatment
facilities are % complete„,
3. The facilities shall be effectively maintained and'operated as a non -discharge system
to prevent the discharge of any wastewater resulting from the operation of this
facility.
l , Any monitoring deemed necessary by the Division of nvin--at mental Management to
insure surface and ground water protection will be established and an acceptable
sampling reporting schedule shall be followed.
2, NoncomplianceNotification:
The Pernrittee shall report by telephone to the Mooresville Regional Office, telephone
one
no. 704/ 663-1699, as soon as possible., but in no case more than 24 hours or oil
the nest working tiny£ following the occurrence or first knowledge of the occurrence
of any of the following:
a. Any occurrence at the ww^astevotiter treatment facility which results in the
treatment of significant amounts ants of wastes which are abnormal in quantity or
characteristic, such as the dumping of the contents of a basin or tarry; the
known passage of a slug of hazardous substance through the facility, or any
other unusual circurns anCes..
b Any process unit failure, dire to known or unknown reasons, that render tine
facility incapable of adequate wastewater treatment such as mechanical or
electrical failures of pumps, aerators, compressors, etc.

Any failure of a pu nping station, sewer live, or treatment
a by-pass directly to receiving eaters without treatment t
of the influent to such station or facility,
d. Any time that self -monitoring information indicates that the facility is not it
compliance vrith its pen-nitpen-nit limitations,
Persons reporting such occurrences by telephone shall also file a written report i
letter form within 15 days following first knowledge of the occurrence. This report
must outline the actions taken or proposed to be taken to ensure that the problem
does not recur.
IV - Cxl l la
I A second aeration system, identical to and in series with the first, shall be added to
the remediat on system to further treat the effluent prig to discharge into the
infiltration gallery.
. The effluent from the rem diaticn system must comply with the groundwater duality
standards contained in 1A NCAC 2L,0200 prior to discharge into the infiltration
gallery.
3. All components of the groundwater recovery, treatment and disposal system shall be
properly weather -proofed to prevent freezing and fa. lure of the system,
The influent and effluent from the treatment system shall be sampled once every two
(2) weeks for the first three (3) months and monthly thereafter for the parameters
specified below
Volatile Organic is Compounds _ ( by Method 1 or Method 2 below)
Method 1; Method 6230 ( Capillary - Column), "Standard Methods for the
Examination of Water andWastewater", l7th editing, 19
Method 2: Method 502.2 " Methods for the. Determination of Organic
Compounds in Drinking Water", united States Environmental
Protection Agency - 600/4- /03
If any volatile organic compounds are detected by method 6230D,or the equivalent
method 502.2, then EPA methods 604 and 61,1 must also be run to detect other
organic compounds which may be present. The results ref all analyses specified in
the monitoring requirements, including 604 and 611 if required, must be submitted
simultaneously.
The results of the sampling and analysis shall be sent to the Groundwater Section in
the. Mooresville Regional Office and the Groundwater ater ection, Permits Unit P0.
Box 29535 Raleigh N.C. 27 26-Cld3 , within 30 days of sample collection;
Tx, (2) weeks prior to system start-up, the lie ittee shall notify the Division of
Environmental Managern it's Mooresville, Regional Office that operation is about
to commence.
, The groundwater recovery treatment and disposal sykstern shall be inspected weekly.
If it is determined that the system is malfunctioning, all repairs should be made as
soon as possible and reported to the lv'iotaresville Regional Office.

groundwater quality monitoring a& deemed utc6sSitry by the, DivWoft of
IEE I I
l Adequate inspection, maintenance and cleaning shall be provided by the Pernhittee to
insure proper operation of the subject facilities.
The Permittee or his designee shad inspect the groundwater recovery and treatment
facilities to prevent malfunctions and deterioration, operator errors and discharges
which may cause or lead to the release of wastes to the environment, a threat to
human health, or a nuisance. The Penruttee shall beep an inspection log or summary
including at least the date and time of inspection, observations made, and and
maintenance, repairs, or corrective actions taken by the Perrnittee. This log of
inspections shall be maintained by the Pennittee for a period of three years from the
date of the inspection and shall be made available upon request to the Division of
Environmental Management or other permitting authority:
3. Any duly authorized officer, employee, or representative of the. Division of
Environmental Management may, Capon presentation of credentials, enter and inspect
any property, pre ises or place on or related to the disposal site and facility at any
reasonable time for the purpose of determining compliance with this permit; may
inspect or copy any records that must be kept under the terms and conditions of this
permit; or may obtain samples of groundwater, surface water, or leachate.
l , This permit shrill beconhe voidable unless the facilities are constructed in accordance
with the conditions of this permit, the approved plans, specifications and other
supporting data,
-� This permit is effective only with respect to the nature and volume of wastes
described in the application and other supporting data.
3a This permit is not transferable. In the event there is a desire for the facilities to
change ownership, or there is a name change of the Permittee, a formal permit
request must be submitted to the Division of Environmental Management
accompanied by an application fee, documentation from the parties involved, and
other supporting materials as may be appropriate. The approval of this request will
be considered on its merits and may or may not be approved.
The Permittee shall obtain a well construction permit from the Mooresville Regional
Office prior to construction of the recovery wells,
5, prior to a transfer of this kind to a new "owner, a notice shall be given to the new
owner that gives full details of the materials applied or incorporated at this site.
. A set of approved
plans dae ll and
this
cific do s for the subject project must be retained
by the Pe
7 Failure to abide by the conditions and limitations contained its this permit may subject
the Permittee to an enforcement action by the ;Division of Environmental.
Management in accordance with North Carolina General Statute 14 --"? 1 .d.
4

The annual administering and compliance fee roust e paid by the Pe aittee within'
thirty (3) days after being billed by the Division. Failure to pay the fee accordingly
may cause the Division to initiate action to revoke this permit as specified by 1
NCAC 2H.0205(c)( ).
9. The issuance of this permit does not preclude the Pe 'ttce from complying with any
and all, statutes, rubs, regulations, or ordinances which may be unposed by rather'
government agencies (local, state, and federal) which have jurisdiction.
10. The Permittee, at least six (6) months prior to the expiration of this permit, shall
request its extension, Upon receipt of the request, the Commission will review the
adequacy of the facilities described therein, and if warranted, will extend the permit
for such period of time and under such conditions and limitations as it may deem
appropriate.
Permit issued this the 20th (lay of May, 1991
LZN+ AROLI A E IRO AL STAGE COMMISSION
MISSI I
George T. Ever , Directo
Division of En nmental anent ,
By Authority of the onnient l i'' ana me t Commission

it bra
M M97
rm
ermXoit Xo ay 20, 1�991
En ginger's _CeqLficat ion
duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time ) the construction of the
project, Project Name Location forthe
Pennittee hereby, state that, to the best of my abilities, due care and diligence was used in the
observation of the construction such that the construction was observed to'be built within substantial
compliance and intent of the approved plans and specifications,
Signature Registration No.
Date
6

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701 Carmel Road
Delta Suite 200
Charlotte, NC 2,8226-3901
7051541-9890
conauttants, Inc. F 704/ -403
nt f)t' ICES .watt
September 5, 1991 C � �' 11991
North Carolina DepartmeXonM'-e'n';i,
Health and Natural Resources
512 North Salisbury Street
Raleigh, North Carolina 27611
Attention. M& Carolyn McCaskill
Water lity Section
Subject: Revised Location of Infiltration Gallery
ey Oil>Company
One Stop
Earl, North Carolina
Delta No. 50-88-564-02
Dear Ms. McCaskill-
11is letter is to inform you of the need to change the position and orientation of the infiltration
gallery at the referenced site. All the appropriate approvals and permits (No. ' 4n ) have been
received for the ground water treatment and digposal system at the site and we are ready to begin
operation of the system. During the course of system installation it was determined t the approved
location of the infiltration gallery (Figure 1) would probably cross the right of way around an existing
high pressure natural gas line, Safety and right, of way concernsnecessitate an alternative location
for the gallery, The proposed new location of the infiltration gallery is shown in Figure 1.
Other than its location, n, the pHery will be identical to the one proposed in the Geology and
Engineering Report 'submitted to your office in June 1990. Soils in the vicinity of the new location
are identical to those in the original locale, Ground water flow models ) talring into
account the hydraulic conductivity and optimal pumping rate (determined y a -hour pump test)_
in the recovery hells can site show that the alternative location ' d orientation allow for better capture`
f re -infiltrated watar than the original location. nw a Mats of the models are attached.
Delta Delivers Solution

Rmised Lmdon of Infiltration Gallery
September 5, 1991
Page
e are ready to begin remediation of the contaminated soil and ground water at the site as soon a
the new location for the gallery is approved. Please ;give this attar your immediate attention and
it me if you have any questiom
Sincerely,
t .CONSULTANTS,
a
Ma ril Gauthier
Proj an ger
MAG/zga
a . Nfichael Parker, l
r. Robert Arey, Arey Oil Company
Donna Alkire, Delta Environmental Consultants, Inc.
r. Stephen Zbur,Delta Environmental Consultants, Inc.

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T6. PERMITS AND ENGI ERING UNIT 901
WATER QUALITY SECTION
DATE: November 15, 1,990
NON -DISCHARGE STAFF REPORT AND RECOMMENDATION
COUNTY Cleveland
PERMIT NUMBER WQ0004097
PART I - GENERAL INFORMATION
1. Facility and Address: Arey Oil Co, One Stop #4 Earl
1906 E. Dixon Blvd.
Shelby, NC 28150
2. Date of Investigation: November 14, 1990
3w Report Prepared By: Jim Reid
C Persons Contacted and Telephone Number: No one on location;
Inspection conducted by observation and plans scrutiny.
5. Directions to Site: Facility is located at the
intersection of SR 1100 and Hwy 180/226 south of Patterson
Springs in Cleveland County.
6. Size (land available for expansion and upgrading):
Approximately 1000 square feet.
7. Topography (relationship to 100 year flood plain included) -
lot is composed to two flat terraces above flood plain.
Attach a U.S.G.S. map extract and indicate facility site.
U.S.G®S. Quad No. __-U.S.G.S. Quad Name Blacksburg North-
8. Location of nearest dwelling and water supply well- nearest
dwelling 300 feet, nearest well. 100 feet.
9. Watershed Stream Basin Information -
a. Watershed Classification: Class C
b. River Basin and Su basin No.- BRD 03-08-05
C. Distance to surface water from disposal system: >500 feet

PART II - DESCRIPTION OF DISCHARGE AND TREATMEMr WORKS
1. Type of wastewater, sludge or contaminated soil:
% Domestic
100 % Industrial
a. Volume: O0058 MGD (Design Capacity)
b. Types and quantities of industrial wastewater. 0.00588 MGD
treated groundwater ire petroleum contamination
attributable to a leaking underground storage tank.
C. Prevalent toxic constituents in wastewater-. Benzene,
Toluene, Xylene, Ethylbenzene
d. Pretreatment Program (POTWs only): N/A
in development approved
should be required not needed
2. Production rates (industrial discharges only) in pounds per day:
a. Highest month in the past 12 monthst lbs/day
b. Highest year in the past 5 years: lbs/day
3. Description of Industrial process (for industries only) and
applicable CEP Part and Subpart: N/A
4. Type of treatment (specify whether proposed or existing):
Proposed, physical separation followed by aeration and
infiltration.
5. Sludge handling and disposal scheme: No sludge will be
generat,ed.
6Treatment plant classification: Less than 5 points; no rating
(include rating sheet, if appropriate). Not rated.
7. SIC Code(s): 5541
Wastewater Code(s): Primary: 66 Secondary:

PART III OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant funds
(municipals only)? No
2. Special monitoring requests- 140
3. other -
PART IV - EVALUATION AND RECOMMENDATIONS
Issuance of Non -discharge Permit is recommended.
signature of Report Preparer
Water Quality Regional supervisor
D to

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Stale of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 2 26- 5 5
James G. Martin, Governor George T. Everett, Ph.D.
William W. Cobey, Jr., Secretary Director
May fib 11
. Robert Arey
Arey Oil Company
1906 E. Dixon Boulevard r
Shelby, North Carolina `. .
r Sub t.' Permit 1 0.
Arey Oil Company
One ;Stop No. 4, Earl, N, .
Groundwater Remediation System
l6fl Cleveland County`
Dear Mr. Arey " s
In accordance with your application received September 7, 1990, we are forwarding
herewith Perini t No. 1 d dated May 20, 199 1, to Arey Oil Company for the construction
and operation of the subject groundwater ream ,liati n and infiltration galleiy disposal system.
This permit shall be effective from the date of issuance until .April 30 1996 and shall b
subject to the conditions and, limitations as specified therein, Please pay particular attention to the
monitoring requirements in this peerrnit. Failure, to establish an adequate system for collecting and
maintaining the required operational information will result in future compliance problems.;
1f any parts, requirements, or limitations contained in this permit e unacceptable to you,
you have the right to request an adjudicatory hearing in upon written request within 30 days
following receipt of this permit. This request must be in the form of a written petition, conforming
to Chapter 150B of North Carolina General Statutes, and filed with the Office; of Administrative
Hearings, P.O. Box 11666, Raleigh, NC 27604, Unless such demands are made this pernut shall;
be final and binding:
One set of approved plaints and specifications is being forwarded to ,you. if you need
additional information concerning this mutter, please contact Mr. John Seymour at 91 / 33- f1 3
cerely,
.- eore T. Ev r+�i
cc: Cleveland County Health Deparime
Mooresville Regional Office
Groundwater Section
Training d Certification
Delta Environmental Consultants, Inc.
Facilities Assessment
Pollution Prevention Bays
1',o Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-73-'701
An Equal Opportunity Aflirnative Action Employer

NO
NORTH CA OLINA
ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
RALEIGH
INFILTRATION ('I'rALLERY PERMIT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North
Carolina as amended, and other applicable Laws, Rules, and Regulations N. 11
hp'17: or
Cot.- P't -N"'J-r
PERMISSION IS HEREBY GRANTED TO W
A
Arey it Company
Cleveland County
FOR THE
construction and operation of a 5,800 GPD groundwater remediation system with an inflUr
gallery and soil venting consisting of two (2) recovery wells each with a 7 gpm pump, a N
gallon oil/water separator, a 550 gallon product holding tank, a contact chlorinator, two channeled
diffused aeration tanks in series with a 600 cfm blower, a totalizing flow meter, a 110 gallon
transfer tank with transfer pump, a 6 foot by 50 foot infiltration gallery with two pie zometers, a 50
cfi'n regenerative vacuum pump with inlet coalescing and particle filter, and, associated pumps,
piping, valves and appurtenances to serve One Stop No. 4 of Aire y Oil Company in Earl, North
Carolina with no discharge to the surface waters, pursuant to the application received, September 7,
19,90 and in conformity with the project plan, specifications, and other supporting data
subsequently filed and approved by the Department of Environment, Health and Natural Resources
and considered a part of this permit.
This permit shall be effective from the date of issuance until April 30, 1996, and shall be
subject to the following specified conditions and limitations:
I PERFORMANCE SICA"AARRE
I Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from a professional engineer certifying that the
permitted facility has been installed in accordance with this permit and the approved
plans and specifications, Mail the Certification to the Permits and Engineering Unit,
P.O. Box 29535, Raleigh, NC 27626-0535.
2 The Mooresville Regional Office, phone no, 704/ 663-1699 shall be notified
at least forty-eight (48) hours in advance of operation of the installed facilities so
that an in -place inspection can be made. Such notification to the regional supervisor
shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on
Monday through Friday, excluding State Holidays.
3. This permit shall become voidable if the soils fail to adequately absorb the wastes
and may be rescinded unless the facilities are installed, maintained, and operated in a
manner which will protect the assigned water quality standards of the surface waters
and ground waters.
I

4. In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including'
those as may be required by this Division, an, such as the construction of additional or
replacement treatment or disposal facilities;
5. The issuance of this permit shall not relieve the Permittee of the responsibility for
damages to surface or groundwaters resulting from the operation of this facility.
d Any sludge generated from these treatment facilities roust be disposed of in
accordance with General Statute 143- 1 .1 and in a manner approved by the North
Carolina Division of Environmental Management.
Diversion or bypassing of the untreated groundwater front the treatment facilities i
prohibited.
- L The facilities shall be properly a ntained and operated at all times,
Upon classification of the facility by the Certification Commission, the Permittee
shall employ a certified wastewater treatment plant operator to be in responsible
charge of the wastewater treatment facilities. The operator must hold a certificate of
the type;and grade at least equivalent to the classification assigned to the wastewater
treatment facilities by the Certification Commission. Once the facility is classified,
the Permittee must submit a letter to the Certification Commission which designates'_
the operator in responsible charge within thirty days after the wastewater treatment
facilities are 50% complete;
3; The facilities shall be effectively maintained and operated as a non -discharge system
to prevent the: discharge of any wastewater resulting from the operation of this
facility.
111. MONITORLNG—AND REPORIINQ
l . Any monitoring deemed necessary by the Division of Environmental Management to
insure surface and ground water protection will be established and an acceptable
sampling reporting schedule shall be followed,
Noncompliance Notification:
The Pe `tree shall report by telephone to the Mooresville regional Office, telephone
no. 04/ 663-1 9, as saran as possible, but in no case more than 24 hours or can
the next working day following the occurrence or fiat knowledge of the occurrence
of any of the following -
a. Any occurrence at the wastewater treatment facility which results in the
treatment of significant amounts of wastes which are abnormal in quantity or
characteristic, such as the dumping of the contents of a basin or tank; the
known passage of a slug of hazardous substance through the facility; or any
rather unusual circumstances.
b Any process unit failure, due to known or unknown reasons, that render the
facility incapable of adequate wastewater treatment such as mechanical or
electrical failures of pumps, aerators, compressors, etc.

C. Any failure of a pumping station, sewer line, or treatment facility res'uting in
a by-pass directly to receiving waters without treatment of all Or any portion
f the influent to such station or facility,
d. Any time that self -monitoring information indicates that the facility is not in
compliance with its permit i tations.
Persons reporting such occurrences by telephone shall also file a w itten report i
later form within 15 days following first knowledge of the occurrence. Ibis report
must outline the actions taken or proposed to be taken to ensure that the problem
does not recur,
R
14 A second aeration system, identical to and in series with the first, shall be added to
the remediation system to further treat the effluent prior to discharge into the
infiltration gallery.
2. The effluent from the remerhation system must comply with the groundwater quality
standards contained in 15A NCAC2L ;fl2flfl prior to discharge into the infiltration
gallery;
® All components of the groundwater recovery, treatment and disposal system shall be
properly weather -proofed to prevent freezing and failure of the system
4-; The influent and effluent from the treatment systems shall be sampled once every two
2 weeps for the first three tmonths and monthly thereafter for the parameters
specified below:
Volatile Organic Compounds - i by Method. 1 or Method 2 below),
Method 1; Method 6230D ( Capillary - Column), "Standard Methods for the
Examination of Water andWastewater", 1th edition, 199'
Method 2. Method 52.2 °" Methods for the Determination of Organic
Compounds in:Drinking Water", United States Environmental
Protection Agency - 0/ - /f1 9
If any volatile organic compounds are detected by method 6230D,or the equivalent
method 5 2.2 then; PA methods 604 and 611 must also be run to detect other
organic compounds which may be present. The results of all analyses specified in
the monitoring requirements, including 604 and 611 if required, must be submitted
simultaneously.
The results of the sampling and analysis shall be sent to the Groundwater Section in
the Mooresville regional Office and the Groundwater Section, Permits Unit, P. 0.
Box 29535 Raleigh, N.C. 2762 -t 5 5, within 30 days of sample collection.
5, Two ill weeps prior to system start-up the Permittee shall notify the Division of
Environmental' Management's Mooresville Regional Office that operation is about
to commence,
. The groundwater recovery treatment and disposal system shall be inspected weekly,
If it is determined that the: system is malfunctioning, all repairs should be made as
soon as possible and reported to the Mooresville Regional Offices

7. Any groundwater quality monitoring as deemed necessary by the` Division of VC
Environmental Management shall be provided.,
V. e"' y.
l . adequate inspectiran: maintenance and cleaning shall be provided by the;Pennittee toinsure groper operation of the subject facilities:
2. The Permittee or his ldesignee shall inspect the groundwater recovery and treatment
facilities to prevent malfunctions and deterioration, operator errors and discharges
es
which may cause or lead to the release of wastes to the environment, a threat t
human health, or a nuisance, The Pere ittee shall peep an inspection log or summary
including at bast the date and time of inspection; observations made, and any
maintenance, repairs, or corrective actions taken by the lie tree. This log of
inspections shall be maintained by the lie sitt e for a period of three years from the
date of the inspection and shall be made available upon request to the Division of
Environmental Management ement or ether permitong authority:
3. Any duly authorised officer, employee, or representative of the Division of
Environmental Management may, upon presentation of credentials, enter- and inspect
any property, premises or place on or related to the disposal site and facility at any
reasonable time for the purpose of determining compliance, with this permit; may
inspect or copy any records that must be kept tinder the terms and conditions of this
permit; or may obtain samples of undwatea-, surface water, or l ac ate.
V1.
1 This pen -nit shall become voidable unless the facilities are constructed in accordance
with the conditions of this permit, the approved plans, specifications and tither
supporting data..
2. This penit is effective only with respect to the nature and volume of wastes
desenbed in the application and other supporting data.
3 This permit is not transferable. In the event , there is a desire for the facilities to
change ownership, or therm is a name change of the Pennittee, a formal permit
request must _ be submitted to the Division sion of Environmental Management
accompanied by an application fee, documentation from the parties involved, and
other supporting materials as may be appropriate. The approval of this request will
be considered on its meats and may or may not be approved;,
4 The Permittee shall obtain a well construction permit from the Mooresville Regional
Office prior to cons ction of the recovery wells,
Prior to a transfer of this land to a new owner, a notice shall be givers to the; new
owner that gives full details of the materials applied or incorporated at this site,
6. A .set of approved plains and specifications for the subject project must be retained
by the Permittee for the life of this project.
Failure to abide by the conditions and limitations contained in this pemrit ti-ray subject
the Permittee to an enforcement action by the Division of Environmental
Management nagement it accordance with North Carolina General Statute 1 - 1 .6.

8, The annual administering and compliance fee must be paid by the Permittee within
thirty (30) days after being billed by the Division, Failure to pay the fee accordingly
may cause the Division to initiate action torevoke this permit as specified by 15
NCAC 21-1.0205 (c)(4),
9, The issuance of this permit does not preclude the lie 'tree from complying with any
and all statutes, rules, regulations, or ordinances which may be imposed by other
government agencies (local, state, and federal) which have] sdictionft
10. The Permittee, at least six (6) months prior to the expiration of this permit, shall
request its "tension. Upon receipt of the request, the Commission will review the
adequacy of the facilities described therein, and if warranted, will extend the permit
for such period of time and under such conditions and limitations as it may deem
appropriate.
Permit issued this the 20th day of May, 1991
LN ""7rr' MANAGEMENT COMMISSION
George T. fiver �, Directo
�ec Division of Env nmetnal a agement
By Authority of the on me'r ma] Management Commission
5

Permit No, WQ0004097
May 20,1991
Engineer��rCf�iti n�
1, , as a duly registered Professional Engineer in the State of North
Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the
project, Project Name Location for the
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications,
Signature Registration No.
Date
6

SLACKSE3URG NOF,,-rH
Sco,, NORTH CAROLINA—
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J
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A`r+M iI, 'r \ G*, o 'ti' �,.I j �' serf r �' �"`:':,•.„ `r �..,,�, .aF d !
ze
(
"�..,'�`� �s''"1 � 4 ¢a,� �t� I �`� � •,- 1` . � I " _'i "`"�' ,/�� � r' f� y� �"- � �'�;� "�.,�`r"� � ¥, �"'� a 2
rl
teiso
OW
�r
a
4
�&
t `
c.
�10 3 Sri -�,
P
t
Y
4
e, 2 20 3c a
r
3
Cezza.`°
{
.,t,.,
' C
4.
�u
,
_tr
w r
,r'

"
#0) And 'or Mlxod-Madia ddinti s. A prafrshing process by which effluent limits ate achieved through a
rant gravity, hydraulically loaded fitter with loading
uoer.tductiot Of suspendedsolids:{.)low
21961n 16 One to throo gpnttsf rangojb)high four ^ a penis-, Irydraullcafiy loaded B€ISot with loading
At any rate, ilia loading fate will exc#od thfee upalr4l:
FORC�L:��.all.:��"� i I�il°� t�� �.,��il.) 1 9� ;",
ales In the five gprm+sf range;
i)Secondany Clarttlors, A tank which follows tiro biological Firth cI a IfOatrrtont plant and which has
�'1RATINGC%L.0
a purpose of Ieeroving sludge associated swath the biological treatment dolls;
42)Soparals StudF,)o Raaaraeatierrs. A part of dire contact siibHualiore process where the activatio sludge
1 ��c `w ;
� f � �" � ' J / c vl sg*g
Name of �-�rti. _..
s transferred to A lank and aerawd Wrote rreturnl(rg kt to tlto basin; ".
43)Sasora Tank. A slrwgta-story sohling tank in which safned sludge €sAn CF with the wrastaw tire)
for soplic tank syslern " eo nee s` a6H rid wry �
Owner err Cont;�ct: Person:_
20 � � � l �?. —Xcr
lowing through the tank: shail not be applicable
s' �
Mailing Address' r S
ass which discharge to a nitrification fiold;
44)Sludge Digestion. The process by which organic or volatile (natter and sludge is gasified„ liquefied„
(''ount Telephone,
�Expiration
thnstafted or s eiverted into more stable organic manor through the activily of living organisrris,
% t : _ ..���..--�
a it CY. �'
Permit
,vlech includes aarated holding tanks.
;45)SWdige buying Birds, An area <o nCtrtSV�g natural tat or artadRC&at Cayes of P r& materials uponwhich
by drainago and evapertafion,
gNPLI S t"i"
-9Ssu Date.„ t
dugesled serwago sludge rs ritaed
(46)Sfudgza Clumatten• A process of,sludega c0ndrroning Oar which contain conslitueants are resnovad by
ondiSC. Perinit NO. `iLt C'C r7 ExPiration
succossfvo waWngs v,tth fresh water or plant o neurnot
(4?y Sfusge Gras Utilization, `rhea process or wising 4awager gas foe rho paurrauso or healing buildings.
,47)
IItivi
Issue �?t : ��� 1� d � g
Dew
tg oagdw#s, etc.,
,46)Sfudge Holding lank (Aerated and Nanaera ed), A tank knielzad for srraalt wastewater treatment
Banta neat containing a dugcas(er do which sitadge rosy tree kepi leash, and supernatant whodrawn prior to
Rated At err � Office_
evict *r ( r inS CC Cart.) Reg,
t drying method (i.€. sludge drying befs)� Thu; may be done by adding a small interim of air simply to
chat w#uki bait roqutread 10 achieve stabilization of
Reviewed t Ct � i tsdtii. a Crt.� r ntr l fI1CC ,
tools the siaadga fresh, but not arooassarity an atnOunt
reganic roaster. A nonaeralod lank would simply he used to decartit sludge prior to dowelaling and would
trade
(`
i1misly be used to (decant sludge prior to dawalenng and would real allow long periods (several days of
-
iolention) without ravolting odor problems;
4g}Slu4ge A furnacte designed to burn studge and te ram art and combustible
III
Plant Class: (Circleone)� If IV
nauirdals and reduce the sludge to a sterile ash;
5o)SIudg# Stabilization (Chemical or Thotrrraf) A pcoeoss to makit treated sludge less odorous and
POINT
tutroscriblo, and to roduco the pathogenic organism content, This may be done by pH ad)usirmint
ITEM
Noriner dosing, or by heat fraatment;
51)Sludgo Thickanor„ A typo of socnrnontaiioh ling in which cite sludge is partm"od to 90,1110 Ind
t l � IrldU tri l Pretreatment Unit nd/0r,
hicken through agitation and gravity-. �
lagoon In which biological oxidation of organic (natter Is
t
Industrial Pretreatment Program
52)Stabfiza&ton Lagoon, A typo of oxidation
tifeciod by natural transfer of oxygen to the waler ham air (nova polishing, pond);
'flee definition No, 33),
i3)Sland-igy Power Supply, On silo or portable electrical generating squipmem(S41 Static Screens.
dosigned to remove solids Including mac,biodegradable particulate (dlaalabl# solids„
� � l ��PLANTl ��
k stationary screen
suspended solids and 800 reduction), Item municipal and indaeltaal
(not applicable to non -contaminated cooling
facilities for grater
wastewater lrealmerrs Systems,
(55)Tarflary Treatment A stage 01 l(oadurtnt Wowing secondary which Is pri(nadly for the purpose
for
waters, ludg handling
purification plants,totally CIDS� cycle
of aifinoth pollshbnag; A s#tiling lagoon or sailed or oat iher, reilght be employed this purpose,
t%)Thoimal po9iuiPon Control Device» A device ptoviding ter the trans#er or heat from a fluid ficswing
systems (defy NO 11), and facifitiDS
Items (4) (d)
n tubes to another fluid outside the iuldas, or vice weans, or, other means of regulating
cansisfing only Of Item ) (d) or
rquid temperaatres„
(57)thermrd Sludge Conditioner A conditioning process by which heat Is added for a protracted periled
by the sotvbliforear and hydravilxing sad the smaller and
and (1 ) (d))
g 20,000 . „ . .
1
of time to Improve the dowateaabiftty Of sludge
more nighty hydratod sludge, parttckis:
'Those Including disoas#• .using agents which
0,00l _•,. 50,000 , ,. .: . .... ....
(5B)"aoxlc Malshats. wastes or rornte;nalleuns Of waxles
offer discharge and upon exposure. Ingestion, inhalation of assimilation into any organism either
or indirectly by ingestion through ;long chains, will cause death, disease,
c),001 - 100,000
100,001 -250,000
diroet@y from lira onvaronrneni
behavioral atncrnaalitles, cancer, garnolic enutalmns, physiological malfunctions (Including €nallunctiors
of their offspring, Toxic materials
�rw Q�y�w . ..-, .
250,001
in reproduction) vt physical dOfiOf nation$, in such organisms
include, by way illustration and not Ikmitatioaaa with, cadmium, chromium, mercury, vanadium,
biph#nyls (PCBs) and dic lorodiphanyt
� C��3� -�,� ,�' �J
1,000,001 2,000,0 00
0
arsenic. zinc, ourcu- itec•cltorabenxana (ONCE padychuarinatad
trehorroomana tDOT), and any other ma vials that have or may hereafter be determined to have toxic2�000,001
(and UP) rate I poirit additional for each
pecioarlies
00,000 gpd capacity top to a.
a
159)THro dIng dater. A biological irGAiment unit consisting of material such as broken $1diro or rock
crvaar swb3ch wa%tewvater is distrabu och A high, rate trickling tidier Is one which is operated at between
" fg"9<"gXlrYlum of 30
'
10 and 3,0 ntgd peer auto A low rate Ificishmi idler Is one which is designed in operato at one to tour
Design FIOW (d) �
I,
in,,, it rar acre",
(6u)THoiuirretg Filter (Pacead Tower). A ralug ftvw. t of die0ralion In vhacPt we, &av star flews dawn,
° � Y Pal p
dote 0if .ante r1ref orlaf is rCYiTiovo d continually Itol
41id�ttg l'l uea;essrV4 lay f, 4t rnucdfa or vain ju tledal,
active biological fixes( grawlh it, each successivo foyer. 1hes treading arty produco `soacmdary*-r(ude.ly
Ai
adjuaA or may be anaptaad to produce a nitrified offluorth
(61)t dune ralnors, Carifr'rtulies, or palter Presses. 01tvicas which are des'sgnod 10 remove excess
to disposal Of iurlher
wa8ar ram either digester{ or undigested sludge prior

containing Inorganic, tarn -to to materials from sand, graver, crushed string or other similar opsratron8„
i,'.
t
from which theta is nodischarge 90 the suffice wvaree5; such systems shalt carry a r axi acre of two
points regardless of pumping laciti[ies or any other epic tenancss;
=h
(S2}Gombinod Removal of Carbanaceovs EAGE and Nitrogantaus Removal', by Nitrification - A single s!
tr'
() PRELIMINARY UNjT (see definition no. 32)
systorn `designod" to achieve 'aelvanc d' pormit effluent fifnits on DOD and arnrnonia nitrogen within
O
Bar Screens . , ; , , ... » . , . , ... , „
tlhe saazso biological reactor,
(l3)Dorchlormation. The partial or complete reduction of residua{ chlorine to a liquid by any ororicical
„ .
o r
or physical process:
/_..
f: (b)
Mechanical SC..;1"C;ofis, Static Screens: or
I14)Drinilrif1crulon Pwcaans. Thn convoirkwnof to nitrogens rgari:
Comminuting L aViCPS , . -. .
(t,g)Etecuodialysss. Process for removing ionized salts from water through the use of ion•solective
ion
(G)
Grit Removal . , ......
-exchange membranes,-
(19)Pitter Press; A process operated mechanically for parlialty dewalering sludge;
G r
...
(37)rcia:m Separation, The planned frothing of wastewater or wastewater affluent as a means of
t
(d)
Mechanical or Ann—Ited Grit R(fl-n6val
-.�
r
firmoving nxcosxlvrs amounts of deterrent rnatnrWrt ihroonh ifiar inlroductinn rt air in The form of fine
bumbles, also called them iraclionaellon,
(e)
Flow Me di$Urtflt Device".
(t6)r3rit Removal. The process of removing geR and other heavy mineral mailer from wastewalor
or
(19)mtheiff Tank. A deep two dory wastewater tarok consisting of an upper sedimental{on chamber and
(()
Instrumented d low- Measuromeni
_
a lower sludge d"agosron chamber;
(20)Insliumtantod I low Measurement, A drivicra witch indrealcs and/or records rate of ltdw;
(lg)
Preaeration ... ....... .. . ... ...
(21)lon Exchange. A chemical process in which Ions from two d4foreant molecules are exchanged;
(22)1 and application: (a) Sludge Disposal. A final sludge disposal method by which sludge may be
f
jrlflunrtt IQ "J C)tJali2atifJfl ... , ,
applied to {and either by spraying on the surface or b subsurfacti injection (i.e„ chisel plow): [not
t
(i)
Grease or Oil Separators - Gravity o ....
applicable for types of sludge described in (la) of This Ru{aij° (b)Troalod Effluilm, The process of
treated
,
spraying wastewater onto a land area or other methods of application at wastewater onto a
Mechanical .. „ . .. . ..
3
land area ai.1. a means of final disposal andrpr trealmom;
Dissolved Air Flotation.
8
(23)krticroscreen, A low speed, continuously back -washed, rotating dram fiftar operating under
5
gravity conditions as a polishingmethod removing Susprmd d solids from off lent;
�95
st1
Pr chlorination
(2,ulditrRicatlun Process, The biormorninal conver*tcri et arnbxi iixod nitrogen (ammama and organic
() PRIM
RY TREATMENT UNITS,.
nllrollon) to oxidized nitrogen (usually nitrate);
(
Septic Tarp (SEG -definition fiD.' . .. . . . . . . ,
(29)Nitrogenous Stage. A separate stage of wastewater Treatment dosrgnod for the specific put of
converting
ammonia nitrogen to nitrate nitrogen;
( t)
Imhof Tank .. . . .. , - . _ .. , ... ...
J
(26)Phosphats Removal Biological. The romovat of phosnhisrus from wastewater by an oxiciAoxic
(Dt
Primary Clarifiers
5
process designed; to enhance luxury uplakn of phosphorus by the microorganisms;
(d)
Settling Ponds or Settling Tanks for Inorganic
(27)Polishing Pond. A holding pond fallowing secondary treatment with sufficient detention to allow for
the finely
Nora to is Materials (sludge handling facilities
settling of suspended solids;
(28)Post Aeration. Aeration following amrivon6onaf secondary treatment units to increase effluent fait,
for water purification ' ptants, sand, gravel,
or for any other purpose;
stone, and ogler mining operations except
(2 )Post Aeration. (Cascade) A ppffshing method by which dissolved oxygen is added to the Affluent by
recreational activities such as gem or gold
a nonmechanical, gravity means of flowing down a sondes of slops or weirs; The few occurring across
the steps or weirs moves in a fairly thin layer and the "ration of the cascade requires no operator
mining)...
adjusimard; thus, zero points are assigned even though this is an essential step to meeting the limits of
( SECONDARY TREATMENT UNITS
the discharge permit;
(30)Powdeted or :Granular Activated Carbon reed. A biophysical carbon process that utilizes biological
(a)
Carbonaceous Stage
activity and organic absorption by using ,powdered or granular aoivalsd carbon; virgin andtor
(I ratt4?t High {T Purity Oxygen System
20
regenerated cartoon is food controlled Into the system;
Diffused Air System
(31)Preseraflon. A lank constructed to provide aeration prior to primary treairnen%
(32)Pretfminaay Units. Unit operations in the troalmont process, such as screening and comminution„
Mechanical Air System (fixed,:
that prepare the liquor for subsequent major operations;
floating or rotor) , . a . . , .
(33)Industrial Pretreatment: (a)PteatroaR ant Unit, industrial. The conditioning of a waste at its
Sludge Reaera(ion
source before discharge, to remove of to neutralize' substances injurious to sewers one! lreatnso'ht
Separate � -
processes am Ice effect a Partial reduction In load on a treatment process which is
P p P operated by the earns
(if) Trickling Filter
governing body as the wastewater treatment plant being ratod; (b)Pre-t ealmeni Program, Industrial -
11I1 date . : ..
7
must be a Stairs or EPA required program to receive prints on the rating shoes;
5
(34)Pdmary Glari(iars. The first settling Tanks through which wastewaTer Is passed in a'treatment
Standard date .... , . , ..:.... .
works for the purpose of romm Ong caof leabte and suspended solids and BOO which is associated wish the
Packed Tower .
5
solids:
�° l qq
ry q Filter
(t d & r,,.tt �.IP ft l *:$l Aerated 1`tlt r or Aerated
(35)Pumps. Tell influent, effluent, and in -plan( pumps,
(3r,)rl €kdtation uislntrretican need/or smrRi a0on prow# .r; c&NZir+ro df(Wv C05: emlit;nrt or oernC7 a
Biological Filter . . . . . , . , . . . . , . . . , , . . . ;
it 0
(37)Reverse Osmosis, A Treatment process In whim a heavy contaminated liquid is pressurized
(Iv) AnratedLagoons
1 0
through a membrane farming nearly puree liquid Iron from suspended solids;
(U Rotating tf(t It3u JCpl ell Contactors . .. .,
Mfg.
(38)Roiatorm Biol rgical Contacicrs, A fixed biological growth process in which wvasTaimilor flaws
in
Through tanks which a series of partially subrmarged circular surfaces are rotated;
(39)Sand Fifliars(a)tmormillpni f3iofogical. Filtration of affluent following soplic Tanks, lagoons, or
some other troa moat process in :which further biodocomposirdon is {expected to produce desired
rffluoril klydraaurkc loading rates on these busts are computed in gpolac and have a resulting tour
gpm/si Oess Than onoy; (b)Rec{rculaling biological - the same Typo of sand filter as detinod in fag with
the added capability to recyNcto effluent back through the sand ritort

r
....
(i SiLtdd�@C�Ir�C„� Tank"TankP #�PatC� ' ........ � ...::, 5
�
�°`�
Ll'�'tit�CJII�"BPS .
Non-aaiated , .... .......
(f)
Foam Separation .
5
��� Sludge Incinerator - (not including activated
� )
€r;r� l�xcrrnr#c�>� .. .. .... ,
�
carbon regeneration) ..... 1 tl
(h)
t.rrnd Apphc ati n of ' reatod Effluent
() VacuumFitter,Centrifuge orFilter Press or other
(sloe definition no. p�'t�) (not applicably for
similar dewterir�g devices . ....... . .... . ... . .. 10
mining
sand, gravel, stone �trtd other- similar minas
()
SLUDGEDISPOSAL(including incinerated asks) �
operations)
{
�Ci� �C?�tF�.] , e r . . . . . e .: r . , « . , ..... . .:.:. , L.
({ o:}rl agr{4^ult�+j6 C1�V �0'� I.k+aPIL,d s{kG.3 (I✓G del.
(b) lend Application (surface and subsurface),
too. a) . . .... . . . . .............. x ... , .... , ,
1 fi
(see definition a)
(h) by high rate infiltration on non -agriculturally
-where the facility holds the land app, permit . 10
managed sites(iraclr{des rotary distributors
application operator h
contracting to a land app p
and sir"iltar fixed nn:-In systems)dy'
. . . . . .. r
holds the land application permit ..... . ...... . . ..
(ri{) by subsurface disposal (includes low pressure;
-land application of sludge byccntractr who does
pipe systems and gravity systems except at
not hold the permit for the wastewater treatment
plants consisting of septic tank and rlitrilica-
facility where the sludge is generated 10
tion lutes only) , ....
(c)' Landfilled (burial) ... .. ..... .
(i)
Microscreens . .. . ... , .. . , .. .
(phosphorus Removal by Biological Processes
(g)
DISINFECTION
(I)
Mori
(a) Chlorination
(See def. No. ) .. « . ,..............s,.
20
(b) Dechlorination
(k)
Polishing Ponds without aeration .. , , . ,
(�� Ozone, .... .: a
with aeration , , .,. . .. : , s
.. , .. "
(d) Radiation .......
(I)
Post Aeration .�: cascade
g
(1�l)
CHEMICAL ADDITION �":�"Pdv9 (a) (e definition No. )
diffused or mechanical
�
(not ctt.1i[;wit7aCi to iir,r'3"i#C'.1 e.1f�Itr,YGt r:.tt¢�'.t :1 item.
(in)
F�ir.:''itsC" £..oSG17+:3.P> ...... . . .......
;j
S
() (I), () (a) (xi), () (a), () (b). (7) (b), (y) (e).
(9)
Sand or Mixed -Media, Filters m:lo rate ,,
() (a)r (g) (b), r C (g) (c) points sash: List:
Mgh rate .. , ... ....
(o)
Treatment processes for removal of metal or
5
cyanide:,... .,., ..-..,.,.a ... ..n,.._.. ," ,.
15
(p)
Treatment processes for removal of toxic
� � _ � -•
materials other than metal or cyanide .. , .......
1
(11)
MISCELLANEOUS LIMIT;
(7) SLUDGE TREATMENT
(a) Holding Ponds, Holding Tanks or Settling Ponds
(a)
Sludge Digestion Tank - t~seated .... . . . . . . ...
10
for Organic or Toxic Materials including wastes
Aerobic ..... ... . .....
5
from mining operations containing nitrogen and/or
Unheated . ,
d
phosphorous compounds to amounts significantly
(b)
Sludge Stabilization (Chemical or thermal) . . , ... ,
5
,......."
greater than i common for domestic wastewater 4
(o)
Sludge Crying Rods - gravity . , . _ ....
p
(b) effluent blow Equalization (not applicable to storage
Vacuum Assisted .......
basins which are inherent in land application system
(d)
Mudge Lliatriaticrl .. , .: , , . , . « .........
(c) Stage Discharge (not applicable to storage basins
(a)
Sludge Conditioner (chemical thermal) :
g
inherent in land application systems
(f)
SludgeThickener (gravity) .........,.,......
a
(g)
Dissolved Air Flotation unit
(e) viand-ld Power supply ......... .... .
(not applicable to aunit rates.. a() (G) : .. ,
g s
(f) Thermal Pollution Control Cevroe,,.„.,
( r
'lucrr l,'JWiZ4.,{(Bnr-'Iudinrgas storaq,)
t
)

� Mfg
r'
' "" '
TOTAL POINTS
(vi) Sand Filters -
intermittent biological . .
recirculating biological
CL SSIFIC. T1C i
(vli) Stabilization Lagoons , a ... .........
5
Class 5 - 25 Points
(vfii)Clarifier .. , . , , ..... r ..... , ........ , ,.:
(ix) Single stage system for combined
5
ll.......:. .......:. ......... 6- 56 Points
carbonaceous removal of BOD and
Class lll.......... ....:..o-. .......,. ......:.,..,..... 51- 55 Points
nitrogenous removal by nitrification
Class lV......... ........ 66- Up Points
(see def. No. 1 ) (Points for this item
have to be in addition to items (5) (a)
Fa ties having a rating of one through four points, inclusive,
(1) through (5) (a) (viii) . i ........... . . .
6
do of require a certified operator. Classification of all rather
(x)' Nutrient additions' to enhance SOD
facilities requires a comparable grade operator in responsible
removal ...... ..:.......
5
charge,
(xi) Biological Culture ("Super Bugs„) addition
to enhance organic CCan`IpCrund f'Mwrnoval . .
5
Facilities having an activated sludge process will be :assigned-
()
Nitrogenous Stage
a minimum classification of Class it.
(i) Aeration - High Purity Oxygen Systern
20
Diffused Air System , .. , ..... ,
10
Facilities having treatment processes for the removal of Metal
Mechanical Air Sy tern (fixed;,
or cyanide will be assigned a minimum classification of Class It.
floating, or rotor) . . , .. .....".
Separate Sludge l�daeration .....
6
Facilities having treatmentj rcce es for theaioNocgical removal(ii),
Trickling Filter -
of phosp oru will be assigned a minimum classification of Class-`
High late . :;
7
III.
Standard Rate .......:
21EL 'rto N a
Packed Towor .
5
{ i N i) Biological Aerated Filter or Aerated
(I)Activaied Carbon Bads, A physacafrchamical method for reducing soluble organic material from
Biological Filter . .:.
1 o
wastewater effluent,, the column -type beds used In this method will have a flow rate varying from two.
to eight gallons Minvle
. .. ;, ..
(iv) , Rotating Biological Contactors
1<0
per per square toot and may be either up-rflow or downftow carbon beds. Carbon
may or may net be regenerated on the wastewater treatment plant sits,
. , ,
(v) Sand Filter-
(2jAeraled Lagoons, ,A basin in which all solids are maintained in suspension and: by which biological
oxidation', or organic matter is reduced through
intermittent biological
arlificiaily acceferaled transfer of oxygen on a flow
through basis;
ECirculating biological .
MAsrati n, A process of bringing about intimate contact between air or high purity oxygen In a liquid
(vl) Clarifier ..... .. .. .... .... . ... . .
by spraying„ agitation diffusion;
(4)Agriculluratly managed site. Any site on which a crop is producad, managod, and harvested (Crop
grasses, grains, trees, etc}„
( ) T f�TN t OACIV�af�CFi TREATMENT UNITIncludes
(d)Air Stripping. A process by which the ammonium Iran is first converted to dissolved ammonia (poi
(a)
Activated Carbons Beds -
adjustment) with the ammonia then released to the atmosphere by physical means; or other similar
without carbon' regeneration
Processes which remove petroleum products such as benzene, toluene„ an xylone,
(6)Carbon Regeneration, The regeneration of exhausted carbon by the use of a furnace to
. .
with carbon regeneration , . .'. . , . . , . . . . , . , . .
f 5
provlde
extremely high temperatures which volatilize and oxidize the absorbed impuride l
(b)
Powdered or Granular Activated Carbon Feed
(7)Camciraceous Stage. A stage of wastewater treatment designed to achieve ®secondary- effluent
limits,
without carbon regeneration ,
(a)Cerstrlfuge. R mechanical devaee in which centrifugal force is: used to separate solids from liquids
with carbon regeneration = ....... , .
1 z
-
and/or to separate liquids of different densities;
(C)
Air Stripping , . . . . . , ,., .: .
(g)Che rcat Addition systems - The addition of chemical (s) to wastewater at an application pant for
purposes of improving solids removal, on adjustment, alkalinity control, etc., the capability to
(d)
Dendtrification Process (separate process) :
1
experiment with different chemicals and different application plaints to achieve a .specific result wifr be.
corrsiderAd one System: the capability to add chemical (a) to dual units will be rated as one system„
capabi" 1e add a chemical at difference application points for different purposes will rosulvin the
systetnsing We as separate
system.
(lta)Chanocal Sludge Conditioning, The addition of a chemical compound such as limo, ferric chloride, or
a polymer to wet sludge 10 coalesce the mass prior 10 its application to a dewaleing;device;

b c. Ms. Laura Robbins, Federated Insurance t pan
Federated Claim No.
ADefta
Environmental
Consultants, Inca
7401 Carmel Exec. Park, Snits 206
Charlotte, NC 28226
704/541-9890
FAX.[phone]
June 14
North Carolina Department of Environment,
Health and Natural Resources
12 North Salisbury Street
Raleigh, North Carolina 27611
11
Attention: Mr. Arthur Mouberry
Subject: Geology and Engineering Report
Non -Discharge Pet Application
Arey Oil Company One Stogy
Earl, North Carolina
Delta No.50-88-564
r Mr. ou
Please find enclosed four copies of the Geology & Engineering Report and application
fee for the above referenced site.
If you have any questions or comments concerning this project, please do not hesitate
to contact me at [phone].
Sincerely,
,
INC
aril Ak G ier
Project Geologist/Project Manager
MAG/amc
Enclosure
pra t cas SOILAOMS tO Environmental Concerns

Deltatz
Consultants,Environmental
tr
7401 Carmel Exec Park, Smite 206
7 4 41-9 9ti
FAX[phone]
June 15, 1990
North Carolina Department of Environment,
Health and Natural Resources
59 Woodrin Place
Asheville, North Carolina 28801
Attention: Ms. Laura Herbert
Subject; Geology and Engineering Report
Non -Discharge Permit Application
Arey Oil Company One Stop #
Earl, North Carolina
Delta No.50-98-564
r Ms. Laura Herbert:
Please find enclosed the Geology and Engineering Report for the above referenced site,
If you have any questions or comments concerning this project, please do not hesitate
to contact me at 7 )541-9890
Sincerely,
DELTAlalS
aril uth
Project Geologist/Project Manager
MAG/ame
Enclosure
Practical Solubons to Environmental Concerris

GEC G REPORT
NON -DISCHARGE
COMPANY,AREY OIL ONE STOP
NORTH CAROUNA
DELTA NO. 50-8&564
report was prepared by
DcIta Environmental Cbnsultants,
1 Carmel Executive Park, Slate 206
Charlotte, North
)

Table of Contents
10
CATION
1
3.0
PREVIOUS REPORT'S
1
.fit
SOIL CHARACTERISTICS ERISTI
4.1 Depth to Ground Water
42 Ground Water Flow Direction
.0
DESIGN INFORMATI
5.1 Monitoring Weiss
5.2 Remediation Systerrr
5..1 Ground Water Recovery
S
521 Soil Venting
5.2.E Ground "Aster Treatment System
5.3 EfBuent Disposal posal
5.31 page Capacity of the Sails
5
5.3.2 Infiltration gallery Design
6
&0
PERFORMANCE AND OPERATION STANDARDS
6_
6.1 Recovery Welly
6.2 Soil Venting
S
63 Treatment System
&4 Infiltration Gallery
p
D
MONITORING ORII
{
8,0
REFERENCES
10
.0
REMARKS
11
Tables
Table
I. Relative Ground Water Elevations
'Fable
Rern that n System Equipment List
Table
Proposed System Operating Data
Table
6 Air Emissions Calculations for Ground -Water 'Treatment Systern

"i"nhle c� tttens ,cc�tlnued}
Page
-Figures
Figure 1;
Topographic I-ocation Map ,
Figure .
Site Map
Figure 3®
Geologic Cross Section Location
Figure :
Geologic Cross Section A; -A'
Figure 5.
Geologic Cross Section
Figure ;
PropowJ Infiltration Gallery Location
Figure 7:
Monitoring Well Locations
Figure r
Water Table Contour Map
Figure ;
Inferred Extent of Ground Water Contamination
Figure
Recovery Well Locations
Figure 11:
Recovery Well Construction - -1
Figure 1 .
Proposed Recovery Well Construction - -
igure 3:
Soil "Vapor Extraction System Schematic
Figure, 1 :
Treatment System Schematic
Figure 1
Treatment System Layout
Figure ,
Infiltration Gallery Design
AnKndlces,
Appendix A:
Soil Boring Logs,
Appendix ::
Recovery Well Design Calculations
Appendix ;
Infiltration Gallery Flow Model Result
Appendix I;
Phase 11 Characteriztion Report
Appendix E:
Soil Venting Exhaust Stud Ernrrtlsstion Calculations
Appendix F:
Infiltration Gallery Design Model

GEOLOGY D ENGINEERING REPORT
D PERMIT
$,' OIL COMPANY, ONE MP #4
NORTH CAROLINA
DELTA
1.0 PURPOSE
e purpose of this report is to evaluate the ability of the geology and soils at the One Stop #4 gasoline
and convenience store in Earl, North Carolina to accept treated ground water via an infiltration gallery,
This report includes geologic and hydro eolo is descriptions of the area, engineering design information
operational characteristics and performance standards for the proposed remediation system and infiltration
gallery as .required by the north Carolina Administrative Code,Section: 15 N A C 2H. 0200,Waste Not
Discharged to Surface Waters,.
.Delta Environmental Consultants Inc.(Delta) has prepared this report on behalf of Arey, Oil Company
A,.rey in response to a Notice of Violation(NOV) issued to Arey by the North Carolina Department of
Environment, Health and Natural Resources D l- N , Asheville Regional Office on November 30,1989.
The NOV was issued after the detection of liquid phase hydrocarbons ..PH) in one of the site monitoring
wells.
2.0 +tN
The One Stop #4 gasoline and convenience store is located in Cleveland County, north of the community
of Earl, North Carolina along State Highway 180 as shown in Figure 1. The site, shown in Figure 2,
consists of a gasoline/convenience store* The adjacent properties are occupied by a photographic studio,
retail outlets, fast food restaurants and a body shop" A4 residential community is located to the west of
the site,,
.0 PREVIOUS REPORTS
Delta has prepared and submitted to the DEHNR the Site Characterization Deport on January 30, 1990
and the Phase 11 Site Characterization Report on April 11 1990 as required by D NR- A Corrective
Action Plan (CAP) for this site was submitted to D HNR on May 15,1990. The CAP details the extent
of petroleum contamination, remediation goals and d description of the proposed rernediation technology.

Geology and ErjgLncqrinSjRc r,
Non -Discharge Perrnft Appli'C111:011
Arey Oil Company, One Stop #4
Earl, North Carolina
Delta No, 5OM-564
Page 2
4�O SOIL QIARACrERIMCS
Based on samples collects ,", Lom fourteen soil borings, soil at the site consists predominantly of red -brown,
micaceous silty clay grading to banded saprolite at depth. it boring logs are included in Appendix A,
The texture and composition of the saprolite indicate a gneissic origin. The locations of the soil borings
are shown in Figure 3. Occurrences of powdery, white clayey silt with residual quartz grains were noted
in several soil borings. The soil boring data was used to construct north to southwest and east to west
profiles of the soil. These cross sections are shown in Figures 4 and 5, respectively.
The proposed infiltration gallery will be located in the area of SB-1 as shown on Figure 6. The soil in
the area of the proposed infiltration gallery is composed of the red brown silty clay at the surface that
grades to banded micaceous saprolite at a depth of 14 feet.
4.1 De tb to Ground Water
Seven monitoring wells (MW-1 through MW-7) were installed by DEHNR personnel in November 1989
prior to Delta's involvement in the investigation. Three additional monitoring wells (MW-8, MW-9 and
.MW-10) and a gasoline recovery well (RW-1) were installed at the site in January 1990. Two deep wells
(DW-1 and DW-2) and two shallow monitoring wells (MW-11 and Mom`-12) were installed at the site in
February 1990. The locations of these monitoring wells are shown in Figure 7. The most recent depth
to water measurements, as shown in Table 1, range from about 11 feet in MW-12 to about 25 feet in MW-
I and MW-2. Depth to ground water in the area of the proposed infiltration gallery ranges from 24.5 to
26.6 feet.
4.2 Ground Water Flaw Direction
Measurements in the monitoring wells indicate that ground water occurs in the unconsolidated saprolite.
The saturated zone is unconfined. Water table elevation contours and flow direction using depth to water
measurements from March 27, 1990 are illustrated in Figure & A southwesterly ground water flow
direction is indicated by the contour map. An apparent hydraulic gradient of 0.0067 ft/ft was calculated
using MW-1, MW-8 and MW-12 as a triangulation base. A downward vertical component of flow is

Geoltr aria r ira erica t
Non -Discharge Perot Application
ANY Oil Company. One Strap #
Earl, North Carolina
Delta No. 50M,564
Page
I�
indicated in the area of nested monitoring wells -11 and - . The vertical gradient in this, area
was calculated at 0, ftdit:
5.0-DESIGN AT ION
,�.� 1'onittlrin
network of fourteen monitoring wells was I ,
n tilled around the site in an attempt to delineate the
horizontal and vertical extent of petroleum hydrocarbon contamination. The tank basin at the One Stop
and the former tank basin at the present Suburban Video outlet appear to be the sources of ground
water contamination at the site. The inferred extentof gro
und water
contamination
i lcn is shown lit..Figure
. Nine monitoring wells, MW-1 MW-
MW-
, -10, M"v'R11; M'-, I~3Y4'-1 and W-„ will
be used to monitor the effectiveness of the recoverywells, remediation system and infiltration gallery.. All
wells, with the exception of M1 and DW-2 were constructed with 10 foot screens which straddle the
water table to allow the entry of floating LPH. To date LPH have been observed only in' W-2 and
RW-I. The deep wells are constructed with 15 foot screens and are designed to detect the presence o
dissolved gasoline compounds at depth.
5.2 stern iation tern
..1 rrsnd Ater e
Concentrations of dissolved petroleum constituents in the ground water exceed North Carolina water
quality standards and the ground waterrequires remediation, Two ground water recovery wells will be
employed to collect contaminated ground water and contain the contamination plume,
e gasoline recovery well (R -'1) will be ,adapted to recover ground water and an additional well, W-
will be installed in the area of MW-10 as shown in Figure 10, R -1 is thirty-one feet deep p and consists
of a 20 foot long, eight -inch diameter, #10 slot, wrapped PVC screen with an 11 foot long PVC riser,
e second recoverywell, RW-2, will be 34 feet deep and constructed with a twenty foot long, eight -inch
diameter, %Tapped PVC screen with a 14 foot hang PVC riser. Construction details for -i are ,show
in Figure 11 and propose construction details for RW-2 are shown in Figure 12.

olo ara laa�ran� i2e rt;
Non -Discharge Pe it Application
,?grey Oil Company, One Stop aid
Sari, North Carolina
Delta No. 50-88-564
Page
RW-1 is designcd to recj,.,, �_PH and ntaminat ground water, and to allow for venting of the soil in
the unsaturated zone. At the present time a compression pump is used to remove accumulated LPH from
the well, and to transfer it to a storage tank on site. The compression pump has the ability to adjust to
changes in water levels using conductivity probes and a self-regulating linear tracking unit. In the future
a total fluids putnta will be installed near the bottom of the well to extract contaminated ground water at
rate of one to two gallons per minute. High and low level on/off sensors will be installed can the pump
to maintain constant water table depression around" the well.
RW-2 is designed to recover contaminated ground water from the upper saturated zone using a total fluid'
pump installed near the 1;, I • i of the well. Ile pump will extract ground water from the sur ciai aquifer
at ar design rate of one to four gallons per minute. High: and low level on/off sensors will be installed
on the pump to maintain constant A2 er table depression around the well.
.2.2 it Ventin
The sail in the area of the One Stop tank basin has been contaminated by contact with the LPH plume
as it moved through the soil column to the water thine. Based on the volume of LPH in 1 61, the soil
is probably contaminated in excess of the 10 part per million "TPH` guideline set': by DEHNR._ In order to
minimize additional contamination of groundwater, Delta proposes to remediate the nail. Soil venting i
proposed as the rernediation technique for this arm
-1 was designed so that a soil venting option could be added to the well, The well screen extends teat
feet above the present water table to albs ` for 'vapor recovery, from the unsaturated zone around the
recovery well. The proposed soil vapor extraction system will consist of a vacuum blower, inlet and outlet
silencers, an exhaust stack, an in -lime particulate filter and a coalescing filter connected to the well via
a sealed well cap and PVC piping as shown can Figure 13.

Geology an! Lgng,in�eeri lip rt
Non -Discharge Permit Application
Arty 00 Cbmpany, One Stop #4
Earl, North Carolina
Delta No. 50-88-564
Page 5
Groand _MLater Tr trnertt rem
Recovered ground water will be pumped to the remediation system for treatment. Physical separation and
recovery of LPH and diffused aeration have been selected as the most applicable technologies to remove
LPH and dissolved petroleum hydrocarbons from the ground water at the site because of the anticipated
low flow rate. The proposed system will be constructed on a concrete slab and surrounded by a locking
security fence. The treatment system will consist of a gasoline/water separator tank and two diffused
aeration tanks in series with a contact chlorinator system to reduce biological growth in the treatment
system as shown on Figures 14 and 15,
Ground water from the recovery wells will be pumped to the gasolineMater separator tank with a capacity
off gallons. The tank will allow for the gravity separation of any emulsified LPH. A sensor in the
separator tank will determine when the tank is full of LPH and will shut down the product pump in RW-
I and total fluids pumps in RW-1 and RW-2, preventing the release of LPH to the treatment sy�stem.
Contaminated water will be drawn from the base of the separator tank and flow through the contact
chlorinator to a series of two channeled diffused aeration tanks. A minimum of 600 cubic feet per minute
(cfm) of air will be injected into the aeration tanks to remove the dissolved volatile organics from the
water. The treated water will be pumped through an effluent discharge pipe to the infiltration gallery,
Effluent Disposad
Several disposal methods were considered for the effluent from the treatment system. These included
discharge to a sanitary sewer, discharge to surface water and re -infiltration. The sewer and surface water
options were eliminated due to the lack of a local sanitary sewer and absence of nearby surface water,
Re -infiltration of treated system effluent appears to be the only available discharge option at the site. The
location of the proposed infiltration gallery is shown on Figure 6.
53.1 AMM Capacity of the Soils
Experimentation has shown that the seepage capacity or rate of infiltration in soils is roughly equivalent
to the hydraulic conductivity of the saturated zone (Freeze and Cherry, 1979, p. 212). Aquifer response
tests (slug tests) were conducted on several monitoring wells (MW-3, MW-9, MW-10, MU141, DW-I and

Nbti-Ditscha ge Permit Application
Hi
-
'- ,) at the site to estimate hydraulic conductivity.hydraulic conductivity calculated from these tests
ranged from 1-64 x 104 feet per minute (ft/min) in A4W-9 to 1.42 x 1{r3 f min in lift -10. Ground water
flow velocity within the saturated zone was es " ted to be feet per year (� ) in '- and
30 ft/yr. in MW-10. average ndu tivi 1 ' in was
used to calculated seepage velocityfor
the infiltration gallery.
"..21n t taut llet�' i
The infiltration gallery was designed using DarcY's Law to evaluate the surface area needed to
accommodate the estimated discharge from the recovery welts. design calculations indicate that a wetted
surface area of 843 square feet would be able to accommodate the estimated discharge Of five gallons per
minute. The infiltration gallery dimensions of; feet deep by 6 feet wide by So feet long with a 5 foot'
Operating depths will provide 8W square feet of wetted surface area for proper function of the infiltration
gallery. The proposed infiltration gallery design is sloth on Figure 16.
Two piezorneters will be installed in the infiltration gallery to monitor ground water levels in the trench,
The piezometers will not e connected in any to the remediation system plumbing and will not be
used as injection wells. A high water level shutoff float will be added to one piezometer so that the
system will shut off if water levels in the trench mound to within two f t'otf the surface.
tia l'l l:' �lC3lsl
.1 e ells
Recovery wells for the site were designed in
capture Zone calculations that assumed a confined,
homogeneous, isotropic aquifer where ground water flows through individual sediment pores, The
calculations also assume full penetration by the well and negligible vertical recharge. local lithologic
variations, anisotropic flow conditions and the presence of fractures in the aquifer material were not taken
k
into account due to difficulties in quantifying individual variables. Local hydraulic conductivity in the
proposed location of the recovery wells was talon into account for design of a1 and -2

Q`iqqnd �En ioeerin R�ert
Non -Discharge Permit Application
Arey Oil Company, One Stop #4
Eart, North Carolina
Delta No. 50-88-564
Page 7
Predictive calculations indicated that RW-1 will have a zone of capture that will extend seven feet down
gradient and 11 feet cross gradient, The maximum up gradient width of capture is 22 feet (Appendix B).
The zone of capture calculations for RW-1 assume that drawdown will be about three feet and discharge
will be less than one gallon per minute, Drawdown will be kept to a minimum in RW-1 to minimize
additional contamination of soil by KPH. However, based on Delta' s experience at other Piedmont
locations, the addition of soil venting to a recovery well enhances flow to the well and increases the
capture zone, It is our opinion that the capture, zone around RW-1 will be somewhat larger by using the
attached soil venting. The capture zone for RW-2 was calculated to be 23 feet down gradient and 36 feet
cross gradient, The maximum up gradient width of capture is 72 feet. 17hese Wculations are based on
a drawdown of 10 feet and discharge rate of 2.6 gallons per minute.
The proposed infiltration gallery will be located up gradient, of both wells, however underground and
above -ground structures prevent installation of the gallery closer to RW-I. Based on a predictive model,
(RESCUE) water discharged in this area will now toward Rom'-1 and reach it in approximately five months,
The modeling results are included in Appendix C.
As reported in the Phase 11 Site Characterization Report (Appendix D), it is Delta's opinion that ground
water flow at the site may be channeled through relict fractures or zones of higher conductivity in the
saprolite. The linear nature of the contaminant plume at the site suggests the existence of a high
conductivity zone oriented at north 30 - 35 degrees east. If anisotropic conditions exist in the saprolite
under the site, then the predicted zones of capture for each reco, very well should follow this trend. The
recovery wells will create elongated zones of capture that parallel anisotropy. Zones of capture will likely
extend further than the predicted values along the axes of the high hydraulicconductivity and may exqend
less than predicted perpendicular to the zone. Discharge from the recovery wells may increase due to
preferential flow paths through the fractures, If flow increases, discharge to the treatment system and
infiltration gallery will also increase. Pumping tests are planned for the recovery wells prior to installation
of the treatment system and infiltration gallery to insure proper design.

Vent$
ng
The s it venting system;i lined to remove hydrocarbon pars from the it ter ranular spaces f the
saprelite in the tank basin, Soil vapor extraction results in increased desorption of contaminants from soil
particles due to higher air velocities and low pressure zones induced by the vacuum. The soil venting
system will be attached to 1 ' -I,
e sail venting system can be designed to extract vapors continuously, however it is li It "s opinion that
Pulsed extraction rather than sustained extraction would result in better performance at this site. pulsed
Pumping involves monitoring exhaust concentrations f organic vapors while the system is operating, and
turning off the
vapor raction system when vapor concentrations reach minimum asymptotic levels. The
system remains off long enough for diffused vapors from the LPH in the soils to move into the pore
spaces. When diffusion is allowed to occur, higher concentrations of target compounds are generally
present when the system is re -started.. :Pulsing is continued: until vapor concentrations do not fluctuate
between pulse periods.
Based n the apparent volume of contaminated soil at the site, sail remediation by vapor extraction i
projected to'be complete in approximately o years using pulsed extraction. Calculations of the exhaust
stack emission concentrations from the sail venting system are included in ,appendix E 77hese calculations
were based on information collected from a similar site in Pennsylvania which also incorporated soil
venting and ground water recovery of a regular, unleaded gasoline spill, The information collected during

Ar
Mira
g N
operations at the Pennsylvania Project provides a good approximation for the effectiveness of the proposed
system for the One Stop site.
§-3—Treatment System
e diffused aeration system proposed for the treatment of contaminated water at the One Stop will
consist of two channeled diffused aeration tames and a blower capable of producing 600 cftn in each tare.
The tanks .are designed to achieve greater than a 99% removal efficiency for dissolved BTE -compounds
and greater than °ram removal efficiency for EDB. System efficiency calculations and diagrams of the
system are illustrated in Figure '14. An equipment list for the treatment system is summarized in Table
. The estimated influent and proposed effluent concentrations for the ground water treatment system are
presented in Table 3. Estimated air emission concentrations from the water treatment systems are included
in Table
6.4 Infiftration GaUeg
The present infiltration gallery design is based on Darcys Law using hydraulic conductivity and estimated
discharge from the recovery wells, The 6 foot wide by 7-foot deep by Sty foot lying gallery with a 5 font
operating depth was designed to accommodatefive gallons Per -minute of water. Discharge rates are not
expected to exceed two gallons per minute in -1 and three gallons per minute in - . Delta plans
to conduct pumping tests in each recovery well prior to installation of the infiltration gallery to Insure that
the design can accommodate the flow rate from the system,
A model of the proposed gallery was used to simulate discharge of five gallons per minute of water to the
gallery for a period of two years of operation using the Ground Water Recharge and Mounding Program
(GRAMP)odeling results are included in ,appendix F. The model predicted a>water -tattle rise of 12.E
feet after two years. e seasonal high water table is about 24 feet below grade and horizontal movement
of ground water is expected, therefore, the unsaturated zone should be able to accept the system effluent.
Two pie meters will be installed in the infiltration gallery to monitor the level of water in the gallery,
high water level float will be installed in one pie ometer to shut down the system if the effl, ue t creates
a mound in the gallery. A low dose contact chlorinator will be incorporated into the treatment system

Geoloey and _kEnjYinn!e;jerEijnFtrxrt
Non -Discharge Permit Application
Arey 09 Company, One Stop #4
Earl, North Carolina
Delta No.
Page 10
to minimize the growth of iron 'bacteria in the trench which could reduce its seepage capacity. A port is
incorporated into the sy- 1ign to clean out material that may clog the discharge pipes.
7.0 MONT'r0RING
To evaluate the performance of the recovery and treatment systems, several tasks will be carried out as
recommended in the Corrective Action Plan submitted to the DE14NR May 15,1990. Water levels in nine
existing monitoring wells and the infiltration gallery piezometers will be measured on a monthly basis.
Ground water samples will be collected from the monitoring cells and analyzed for the presence of
benzene, toluene, ethylbenzene and xylenes (BTEX) and methyl tett-butyl ether (MTBE) tri-annually,
Samples will be collected during the months of March, July, and November after the remediation systems
are operational. Air samples will be collected in Tedlar bags and analyzed for the presence of hydrocarbon
vapors using an organic vapor analyzer on a monthly basis to determine the effectiveness of pulsed
extraction, Tri-annual reports will be submitted to DEHNR no later than one month following receipt
of laboratory results. The reports will include monthly water table measurements, water table contour
maps, analytical results and an evaluation of the progress of the system toward remediation goals.
Monitoring real uireniea6 u, thc effluent to the infiltration gallery will be established in the Non -Discharge
Permit issued to Arey Oil by the North Carolina Division of Environmental Management (DEM). At a
minimum, the effluent will be sampled biweekly for the presence of BTEX during the first 30 days
of
operation and once per month following that period.
8.0 REFERENCES
Freeze, R, A, and Cherry, J. A�, 1979: Groundwater, Prentice -Hall, Ine.
Englewood Cliffs, New Jersey
Javandel, L, Doughty, C., and Tsang, C. K, 1984, Groundwater Transport Handbook of
Mathematical Modeling. American Geophysical Union Monograph No. 10, 228. p.
Singhofen, Peter, J., 1983: Ground Water Recharge and Mounding Program (GRAMP), Advanced
Engineering and Technology.

Geology and Engineering Report
Non -Discharge permit Application
Arey Oil Company, One Stop #4
Farl, North Carolina
Delta No. 50-M-564
page I I
K0 REMARKS
The recommendations outlined in this report represent our professional opinions. These opinions were
arrived at in accordance witir currently accepted hydrogeologic and engineering practices at this time and
location. Otber than this no warranty is implied or intended,
This report was prepared by:
DELTA ENVIRONMENTAL ' CONSW�AIAOJ;[� , INC
A J. "fif
�04/1 110
•of
SL A
1, 3 4
i I ke
rilyn tallith er,
Geolog" roj t ana er
0
North Carolina Lice etaeol
This report was reviewed by:
Richard A- Workentine Date
Chemical Engineer
and 'ooill 11 #rift
VIt
40k CA
o
Virgin" M. Lunde, P. tic
f S E A
Engineering Department Diana &r N(r, 13694
North Carolina Professional En p(K-. ?I 4(c
x-
I �'vm

TABLE 1
RELATIVE GROUND WATER ELEVATIONS
dray Oft Coupany
One Stop
Earl,
Korth Carolina
Delta Project No. 50-
MON ITORING WELL: MW-1
RELATIVE ELEVATION;
108.07
DATE.
01/03/90
01/11/90 01/19/90
03/02/90
03/0/90
03/27/90
DEPTH TO WATER;
26.59
26.34 26.24
25.15
24.82
24.44
GROUND WATER ELEVATION:
81.48
81-73 1.83
82.92
83.25
83.63
MONITORING WELL. Mil-
RELATIVE ELEVATION:
97.89
DATE:
01/03/90
01/11/90 01/19/90
03/02/90
03/08/90
03/27/90
DEPTH TO DATER.
31.6
31.36 *
*
*
27.35
GROUND WATER ELEVATION:
66.29
66.53
70.5
DEPTH TO LPN:
24.6
26.36
25.15
LPH THICKNESS FT:
7
5
2.2
ADJUSTED GROUND WATER ELEV..
71.54
70.28
72.19
MONITORING WELL: MIw.3
RELATIVE ELEVATION::
106.12
DATE:
01/03/'90
01/11/90 01/19/90
03/02/90
03/08/90
03/27/90
DEPTH TO 14ATER:
24.95
24.72 24.63
23.37
23.26
22.85
GROUND WATER ELEVATION;
81.17
81.4 $1.49
82.75
82.86
83«27
MONITORING WELL: MW-4
RELATIVE ELEVATION:
105.43
-
DATE:
01/03/90
01/11/90 01/19/90
03/02/9
03/08/90
03/27/90
DEPTH TO WATER:
23.76
23.56 23.52
22.47
22.32
21.85
GROUND DATER ELEVATION
81„67
81.87 81.91
$2.96
83.11
83.5s
MONITORING WELL: MW-3
RELATIVE ELEVATION:
104.5
DATE:
01/03/90
01/11/90 01/19/90
03/02/9
03/08 90
03/27/90
DEPTH TO WATER:
23.35
23.15 23.09
21„98
21.84
21.42
GROUND'WATER ELEVATION:
81.15
$1.35 81.41
82.52
82.66
83.08
Notes: ntiari:g wetl instatted January 1998
* e(( covered and not
accessible
monitoring well installed
February TWO

Table I ftontlny�2
Page 2
MONITORING WELL: MW-6
RELATIVE ELEVATION:
95.99
DATE:
01/03/90
01/11/90
01/19/90
03/02/90
03/08/90
03/27/90
DEPTH TO WATER:
19.96
15.74
15.63
14.22
GROUND WATER ELEVATION:
76.03
$0.25
60.36
81.77
MONITORING WELL: Mtn-f'
RELATIVE ELEVATION:
99.21
DATE:
01/03/90
01/11190
01/19/90
03102190
03108/90
03/27/90
DEPTH TO WATER:
12.84
11.89
9.86
9.78
GROUND WATER ELEVATION:
$6.37
87.32
89.35
89.43
MONITORING WELL: MW-8
RELATIVE ELEVATION:
100.17
DATE:
01/03/90
01/11190
01/19/90
03/02/90
03/08/90
03/27/90
DEPTH TO WATER:
+
+
18.49
17.06
16.88
16.52
GROUND WATER ELEVATION:
81.68
a3.11
83.29
83.65
MONITORING WELL: MW-9
RELATIVE ELEVATION:
100.78
DATE:
01/03/90
01/11/90
01/19/90
03/02/90
03/08/90
03/27/90
DEPTH TO WATER:
19.58
18.37
17.8
GROUND WATER ELEVATION:
81.2
82.41
82.98
MONITORING WELL: Mks-1 0
RELATIVE ELEVATION:
96.67
DATE:
OVUM
01/11/90
01/19/90
03/02/90
03/08/90
03/27/90
DEPTH TO WATER:
+
+
16.34
15.01
14.98
14.59
GROUND WATER ELEVATION:
80.33
81.66
81.69
82.08
MONITORING WELL: NW-11
RELATIVE ELEVATION:
103,78
DATE:
01/03/90
01/11/90
01/19/90
03/02/90
03/08/90
03/27/90
DEPTH TO WATER:
++
++
++
20.64
20.59
20.45
GROUND WATER ELEVATION:
83.14
83.19
83.33
Note$. + Wntioring well installed January 1990
* well covered and not
accessible
++ monitoring welt installed
February 1990

Tabu
Page
MONITORINGWELL: Nam-17
RELATIVE ELEVATION 90.53
i
DATE: 01/03/90 01/11/90 01/19/90 03/0 /90 03108/90 03/27/90'
DEPTH TO TER: ++ ++ 10.51 10.4 10.54
GROUND WATER ELEVATION: $0.02 W.1 79,E
MONITORING WELL: 0W.1
RELATIVE ELEVATION: 99.22
OATEN 01/03 90 01/11/90 01/19/90 03/02/+0 03/08/90 03/27/98
DEPTH TO TER. ++ ++ + 17.37 17.24 16.E
GROUND WATER ELEVATION: 81.85 $1.98 82.34
MONIIORING WELL: btu
RELATIVE ELEVATION: 103.2E
OATEN 01/03 90 01/11/90 01/19/90 03/0 /9 0 /0 90 03/27/90
DEPTH To TER. ++ ++ ++ 15.45 0.9 O.9I
GROUND WATER ELEVATION; 87.83 82.32 87®3;
Notes: + montioring wet( instatted January 1990
+ wait covered and not accessible
++monitoring welt instatted February 1990

4REMEDIAnON
SYSTEM EQUIPMENT LLsT
Amy Oil Company
One Stop #4
North
tea No.
n#
P w„, r i tag
aeaa
Product/WaterProduct/Water
1000 gallon,
carbon steel
Separator Tangy
d a ' length 0.13 "
wall thickness
Product Storage: "Tank
550 gallon 4 " dza;
carbon steel
4" length 0.13 " wall
thickness
Aeration Blower
2 hp, 230 VAC, single
aluminum
phase, 600 cfm
Aeration Tanks
' x 6', 1/ wall
fiberglass
thickness,channeled
Submersible
Taal Fluids
2 13 hp, nominal flow
stainless steel
rate of 7 gpm, 2.30 V
Pumps
Automated Pneumatic
1 nominal flow 1.5 gpm
stainless steel
Product Pump
teflon
Pump Control Panel
1 1 - electric submersible
galvanized steel
depression pump and 1-
drip ;proof
pneumatic product only pump
Pump Control Panel
1 1 '- electric submersible
galvanized steel
depression pump
drip proof
Agar Compressor
1 2 hp, 230 VAC, 14 cfrn at
galvanized steel
100 psi
Totalizing Flow Meter
2 flow recorded in gallons,
carbon steel
requires a minimum flaw
(rust proof
rate. of Q5 gpm
Chlorinator
l Calcium hypochlorite
plastic'
tablet feed
Regenerative Vacuum
1 LS hp, 50 efm, 3' Hg
carbon steel
Pump with .Inlet Filter
vacuum, with inlet
(for soil venting system)
filtration

J
SYSTEMPROPOSED OPERATING AT"A
Company
e Stop #4
North
Delta No. 504W,564
*Estimated Estimated
t n uuent tion
Parameter
Benzene 38 0.190
Toluene 56 0,280
ylenes (Total) 9.0 0.0,45
Ethylbenzene 15 0,
I
mgfL = milligrams rams per liter, 1 mg/L 1Cru ams
Example Calculation: Assume a 99.. 7 removal efficiency
Influent Concentration of Benzene 38 m 99. E = 37SI f Benzene removed
38 rrn ,L - 37a81 m = 0,190 rn l of Benzene Remaining In Effluent
Influent concentrations from the most contaminated monitoring well -9). Sampling data March 2, 1990.
Based on an estimated total flow rate of 5 gpm.

!ABLE 4
AIR EMISSIONS CALCUIATIONS
GROUNDITREATMENT SYSTEM
Arey Oil Company
One Stop
Earl, North Carolina
Delta No. 5- -5
Analytical resnIts for worst case monitoring rin well.
Parameter
Concentrations
Benzene
3&0
Toluene
56.0
Ethylbenzene
2.5
Total Xylenes
9,0
Ethylene Dibr wide
Ground water monitoring well samples were collected March 2, 1990.
Assume-
100 % aeration treatment system removal
efficiency "woo-W case for
emissions)
maximum average flaw rate two recovery wells = 5
allons"'Mi sate
Influent'water
Air Exhaust
lr'arameter 9Lneentration
Bow Rate Unit 9qnversions
gLncentrations
Benzene 38,0 rrrx
5 &-,—il' . 51- x 14,40 actin x I gram x
jib =
228 lb/day
L
rain dal day 1000 nig
454g
Ilene 56,0trt xx
Sani¢a L 1 in € ra
lb =;
. 6 lb/d,
day 1000 mg
5d
I th lbe zee m x
5 gal x 2.785L x 1440 min I ram x
11h =
0.15 lb/day
min ,dal day 1000 mg
454g
`total Xylenes .11 m g s
5 al .7 5P 1440 min I ram x
11b =
.54 lb da
L
min gal day 1000 mg
45

SCALE 124000
y
1 i1'X 0� d DOC 2000 30W 4c,00
CONTOUR fNTERVAL 20 FEET
NEB* Q FFNEY 15' QUACMAKOLE
FGLfE 1
N3E 7, 'M 130/7.
1971 TOP"APW LOCATONMAP'
1i
EARL, NC
44 MILS
t *
PROJECT NO, PFIEPAAED B'Y
- —564 QWR
1-30-90 *#l/k C*"ouftaota'
WL

,#
Illy
�+ro, t -- IIACK*-q VAS
r _ LINE
1"FAFI
PUMP
19"�Yk4 ISLAND)
LEGEND
`•SUPPLY WELL
PROPERTY OUNDARY
PAS SY AREA
y
...,.., � .. mow.
lie
TANK
BASIN
/ fil 7 SCALE, Y)
FIGURE
SITE MAP
�RYf ONE STOP - AREY OIL CO.
EARL, NC
PROJECT No. PREIIARED BY
r` 0A ff'q kr�ZWY It0 el) ta
ts« tn�_

Op
lad JAR'
FOOD WM CO.
JaWo
to -
PUMP
+
ISLAND�
R ,
w
0
SCALE - T
FIGURE 3
GEOLOGIC
PROPMTY ARC a` II
GRASSY AREA ONE
SOIL. PORING EA NQ
PROJECT T NORR PARED BY
50-88-564 CXH.
DATE REM
3-27-90

SOUTHWEST
NORTHEAST
A
A*
110-
S13-1
RED CLAYEY
SILT & GRAVEL
SPAR
100-
sa
SB
SB-10
CLAYEY SILT
ss
RED
WHITE SIL
BANDED SAPROLITE
ITEM `RE
go-
RED BROWN
CLAY WTk
SAND
SILTY CLAY
WHITE SILTY
UA
CLAY WITH
SAND
BANDED
w
BANDED
MICACEOUS
SAPROLITE
MICACEOUS
SAPROUTE
70--
MITE
COARSE GRANITE
WITH SAND
6o-
FIGURE 4
GEOLOGIC
CROSS SECTION A -A'
ONE STOP #4 - AREY OIL CO.
LE-GEND,.
EARL, NC
SCREENED INTERVAL
MIM-7140, -
PREPARED
50-88-564
C.W.H.
HORIZONTAL SCALE
SATE
REVIEWD Defta
sy'Accnqultantk
Enytrwmentol
'WA
3-28-90
-IJ
lime-

110—
WEST
EAST
S —4
S
C
L
MITE
YELLOW
CLAYEY
SILK
CLAYEY
SALT
IT
SAND
41
PEA? BROWN
SILTY
CLAYEY
SILT MTH
SAND
BANDED
BANDED
L
MICACEOUS
MICACEOUS
SAaPROLI TE
SAaPROLI `I
BANDED
MICACEOUS
S. PROLITl
so -
FIB
GEOLOGIC'
SCREENED
fhiTEP'Ah:
EARL,
NC
H{3R1C7h# TL,
SCALE
DATE
REMEWWED Byl
It

r
�03 jaot)y SHOP
IV BODY t4op
WELL to
Ck
WU
,TACK'S EAST Zt
* FOOD WELLfNFIIr"
v>
l1 A 1 ALL R
LINE
LEAK
P w
✓ ISLAND
OLD
TANK
BASIN
10
511
S ALT (FEET)
LEPL9Z FIGURE
PROPOSED INFILTRATION GALLF
SUPPLY WELL LOCATION
PROPERTY BOUNDARY � ONE STOP #4 "- AREY OILC O.
MASSY AREA
EARL, NC
PROIEC17 NO. PREPARED BY
,. - CXH.
DATE REVIEWED BY Deffa
--M
tfiL

m11
MW- 1 ' N
41 41
?103- J800Y SHOP 4)
t—
41
; c
/mW-10 "pick
#3 BODY SHOP
LL
/-JACK*S FAST
FOOD WELLco
.+'
d41 N*AY 198 4)
r PUMP
w ISLAND
J
M i
y
C
S (
LEGEND.FIGURE
F SA�PLY Wm MONITORING WELL I
PROMTY BOUWARY ONE STOP- AREY OIL CO.
MASSY AREA EARL, MONITORING L
PARF
-- 564 C. W. H.
DATE KNEW FY—
„1, ,1. ` ,

w­
41
.0#3 ODY SH 4�c� lr
tOw
w-IO -
.
cil
98)
( .
V4104`d A i J ° LEAS
a MW-1 4.
63
180
3.08
MW
OLD
TANK
BASIN {
p "SCALE (FEET)
LEGE_ND: MW-7 FIGURE 8
WATER TABLE T
,
1990
w "GRASSY AREA
MONITORING WEU EARLS NC
DEEP MONITORING L PROJECT O. PREPARED IIY
4o RF-LAnvE MOUND WATER ELEVATION � — - 564 C.WV.H DATE Defta
° - 0 e

r
� r
I)A- �---
Y SHOP f�AAL�-�
%*-.. lmw-lO
#3 BODY
r
w-9 tWELL
v
FOOD WELL ot
`r} +
l —11 IFS
vjjo4 A i
' —1
PUMP
PS NC!
r �
t
Nr w—w W
u41
i�
o, vt SCALE (FEET)
LEGEND: MW-7 FIGURE 9
-- INFERRED
EXTENT
SUPPLY WELL WATERT T d
GRASSY
MONIMRING wELL EARL, NC
0 DEEP NuNONNTt7W NG WELL SE TM. PRWARE�N BY
50-88-564 CAH.
DATE REMEWED BY Defta
3-27-90

RW-2
#3 ODY SHOP B0 Rq
-TREATMEWT
..... Y SHO"
z
IGH*AY 196 LINE
LEAK
18,0
OL
TANK
BASIN
0 90
SCALE (FEEI)
LE END- FIGURE 10
SUPPLY Wei RECOVERY WELL LOCATIONS
PROPERTY BOUNDARY ONE STOP #4 - AREY OIL CO.
GRASSY AREA EARL, NC
@ RECOVERY WU
PROJECT NO. PREP 11 A I RED BY A
50-88-564 CXH
REMEWD BY Delta
5-22-90
DATE AM/A C43M*WtOAN.

FIGURE 1
FRECOVERY WELL CONSTRUCTION
PROJECT, LOCATION,dii
Cn C RECOVER L R
CAP TOP OF RISER ELEVATMNs
INSTALLATION COMPLETED,
DATE, 1 1 1 I E, 16 C G
DEPTH BELOW TOP OF
RISER PIPE
;"*--�LOCKING PROTECTIVE
DIAMETER & MATERIAL Ft I
TOTAL LENGTH
LENGTH ABOVE GROUND 6
°~ THICKNESS & TYPE OF SEAL 91
GROUT
DIAMETER, MATERIAL AND " PVC SCH 40=
JOINT TYPE F RISER PIPE flush thread
0"— TYPE OF, BACILL
, AROUND RISER � rout
THICKNESS & TYPE Or SEAL zLfitA=rF i r
DISTANCE OF FILTER SAPID
ABOVE TOP OF SCREEN '
- TYPE OF' FILTER AROUND SCREEN � e s d.
SCREED TYPE wranned PVC
SCREED GAUGE OR SIZE
OP OPENINGS ($LOT SIZE) # 10
" DIAMETER & LENGTH OFF SCREEN
—DEPTH TO THEROTTOM
OF WELL
DEPTH TO BOTTOM
OF FILTER SAND
THICKNESS & TYPE OF SEAL s� xt
DIAMETER OF BOREHOLE � Ft
T
Lis T
L C T
Defta L4 FT

FIGURE 12
-0 * .
CAP
*FLUSH GRADE WELL CONSTRUCTION
w 3' 3'
a * * DIAMETER & MATERIAL
LENGTHTOTAL LENGTH
BELOW GROUND'
CA - E EEC 6- ITFL j men tas a5
DI+ s MATERIAL S JOINT TYPE 8" Pvc
7F MISER PIPE
j —TYPE EP SACKFILL AROUND RISER Neat cement
grout
THICKNESSTYPE OF SEAL
4
OF SCREEN
=—TYPE OF FILTER AROUND SCREEN Fine sacs
I
WELL SCREEN MATERIAL
SCREEN ET U E EP F .fit # 10
(SL! D' L LENGTH OF SCREEN 8"t '
DEPTH IM THE SCTTQM OF RECOvERy
IWELL
DEPTHBOTTOM F 3
T14ICKNESS & TYPE OF SEAL,None
DIAMETER OF BOREHOLE
L . 8 " FT L .' — FT
Lau 1' F`` L, '

twLUENT DIFFUSED AERATION TREATMENT
FROM RY SYSTEM (DATs
WELL, RV 2 CONTACT
VENTS CHLORINATOR
SF« LIDLJT LAYER 4'ENT
F WATER L EVtL.
FLUID L F; L '4 ATER LEVEL.
SEPARA T EFFLUENT
SF I DISCHARGED T
A AT - Sty 4 INFILTRATION-- i,y,xy505p4Y.
` INFLUENT CLEAN RECOVERY L�L� ER DIFFUSEDGALLERY VIA
FROM E VER AIR AERATOR LIB TRANSFER PUMP
WELL, R —I
LEGEND"SYSTEM A APETROLEUM CONTAMINANTASS BALANCE
SP L SAMPLE POINT Am VATCR F L NT W
CONTROL VALUE 600 CF4 ESTIMATED AIR c� rta I
FLOV TAL METER INFLUENTD
EFFLUENT tz 5 GPM REN ENE 0 2RO
JT TOLUENE s 0 TOLUENE 0'
136
L DRAWING IS NOT TO SCALE ETHYL BENZEW a5 0 ET14YL BENZENE 0 04
. INFLUENT UENT CONCENTRATIONS BASED ON HIGHEST YL
VALUES OBTAINED IN MONITORING '+SELL MW-
3S S 4
E0 =6 0 CDP CIX jr4
F 'IDEAL' OPERATING CONDITIONS
100% VOC REMOVAL FROM WATER)
FIGURE 14
TREATMENT T STE E TIC
ONE STOP #4 - AREY OIL
EARL, NC
gh-
AOL
50-88-564 CXH.
LATE REMEWED By Delta
�--1 -- FlaConsult I

PRODUCT PUMPED
TREATED FROMR —1
WA WATER PUMPED
DISCHARGED FROM W-1
KING "
C FROM TOTAL FL
AIR PUMPEDTINFILTRATION UIDS PUMPEDRY-1GALLERY FROM R —
TRANSFER RUMP (2) CHANNELED
w�
S' CRE"1E RAID DIFFUSED
AERA'nON
TANK
110 CAL 'TRANSFER
TANK
{
TANK
LL
FLOAT lit
OBS
V E9VAT1CN
ROT
550 CALq ON PROCUCT ItiOLDING TANS{ E .k
rr� , p
k
I -CONTACT � t
CHLORINATOR� � a
SOCK CAL LPH/WATER SEPARATOR ,
TANK
iLiv
TANK FULL FLOAT & PROBES
E c AEPATION
OBSERVATION SLOWER
.� E`CR.T COALESCING:, � MOTOR
CONSERVA71ON � BLOWER
�Vq T
SLATTED, CHAIN —LINKED
FENCE SECURITY
FIGURE 1
TREATMENT YT M LAYOUT
ONE STOP AREY OiLl Co.
EARL, NC
PROJECT NC PREPARED BY
AM
- C.W.H.
5-22-90
,��

0 PIE METE
4* DIAMETER PERFORATED
LA DRAIN PIPE - -r-T- -T--=T--r-r--t
I'-T"'T T
BACKFILL WITH 1/4" PEA
GRAVEL DRAIN ROCK
PIE 70METF-R 0
P-LAN.""VIEW
FFTLUENT
INLET
4* DIAMETER PERFORATED CLEAN OUT PORT
—A ASPHALT SURFACE DRAIN PIPE A'
rJTM,---TT-UTFlLlT
SLOPE IN 50*
NATIVE
PIEZOM E TER S 7*
MATERIAL
(TYR)
BAcKnLL WTH 1/4' PEA
GRAVEL DRAIN POCK 24'
SCALE
(FT)
APPROX LEVEL OF
0 10
FIGURE 16
CROSS SECTION A -A' INFILTRATION GALLERY DESIGN
ONE STOP #4 — AREY OIL CO.
EARL, NIC
f"R717ECT NCI PREPARED Ml
50-88-564 C.-.H.
DA I'E REVIEWVED FY Defta
5-1 -- ( Envtror~tfAt
90 A.CoftstAtoots'. 2 i

NMI

/ 4
AM Oil COqwV
ng
OM StCp #4
rpiUmc
25" OD Hm
40
ELEMAncw
Sl
BC
Sl
I
SR
A
OBSERVAncN
P
E.
O
�i
Z®Ir
It
ch
10
12
16
3
2
2
.
lot E�Iay%
gas odor
23.
aboveized fractures
50
gas odor
4
10
. 2
Y
ca
30
oar
4
32
28
28
2
2 thick
3C
30
3
IffIvel, utdtequartz
yyg
lei e
40
l Y
.t 29. feet
wZd
3
36
ompleted38
4
...
42
44
46
WFEWL'.
TDM
GWL

EEEn
r
250
e 57
START01 1
�EML
..
sc sl SR
TI
PI P, W
Tft
it,
L
I
t
9/9
p1wm tr
6 4
`so
4
�. r r
w,solvent
9.9
3
1 ,
8/1
1
4
1 ter r
33 141
4/7
14bkown
r
16-Is
1
13 18solvent
20
2-
24
1 . f
11 r
3
�-3'
0
no Odor
30
31 feet
34
Ompleted as 1
36
38
4'
4
44
46
4ufNt's@Iftc.

PROJECT
MANE LOCATION
PROJECT DRtMC
------------
HI T 1 DT
RUIi1�ER: 5tt"11Q"5SS UMtEt'.
Ei"D
trey Oil
Company
CDRTRACTDR:
DRILLING
1906 Ew
Dixon Riwd.
Crb nduator Vrotastioo
01tRObt 6.25• RSA
Shelby,
forth Carotlna
281'50
AIL Rs Shorty
KILLING
*Its* #Wt R.57
"
START: 1/11/90 11:00 a•
COMPLETED: 1 11 DG
LAND
OW*t4t
Arty Oft
Company
SLIIt FA E
'ELEVATION-
LOOCEII It: NAO
0
T II
C S I
p II
E
R
CD TANIVA*T
IT
C
dEPTit
DESCRIPTI}RS Of PATERIALt
OBSERVATION GERE TP
TBRVAT I
DII
E
T L
AND C0*01TIARS
INSTRUMENT ROTES
y
SCALE
h*
R
S W t"1
(in)'
two
UNITS: ppo odor
5 24
21
2
CM; sandy Slay, red brown
0 nano
CH; sandy City red brown
A
T
otttad ryettow anStar.
quartz prams, moist
d none
D
CR* sandy, silty city, rod,
11
brown a/yettow crumbles
easily
2.6 $tight lies
10
11
12
XK; sandy.:eiIt red brawn,
16 24
15
S
moist, crumbles rosily
9.2 slight Sam
CR; a fi
Ity City, Stratied
A
1'
itatsays decomposed
10 24
18»5
10
rock, white and red brown
sapratite
d slight Ras
D"
12
t
i
5
1
A
2A
55
$tigh pas
15
20
22
5
TO w 23..0#
Water t bta at 16 it
Cobptat d as 'XV-S;
iIDI OGLE VATER LtVtl.
DATA
WATE
lot
Delta
CASING
EPTR

PROJECT NAME / LOCATION
PROJECT 011*6
SWEET
i or
wL�rRAER� SSnIItt- w�R�
111-9
Arty
Ott Co panty
1906
t. Dixon 4(vd.
CUwTAACTot,
Croundwot*r protection
GRILLING
ETR . 6.
*$A
thatb , North Carolina
28150
RiLLERt ShortyRltt.
MG
it tit Mobil*
R-50
START: 1/12/90 #:FAQ, a*
C+4RiPLETEOt
ii;gp
LAND
OituERR Putnam
SURFACE
ELEVATION:
1,064to ST:
MAG
C T
to
t C t
v 0If
M
R
E
CONTANIwAwT
P
S
tI T
C
ET D P N
_
tIESCRPTIISttS Of MATERIALS
SSERVATION
E G RERA L
S w
E T
Q
V
SCALE
AND CEtWTIO*S
INSTRUMENT:
010TES
R $t
(in)
iw• 2UNITS:
hwu
pow
odor
tE
I Silty city, red brown /
13
16 24
20
a
Yellow ■ottting, *ruwbt*e
ti
essity
1C
pas=like
i5
3
w,
a sandy eilt y*ttow brae
E3 i
A
w/anguter quartz grains,
dry
21
Rai-iika
A
'E
12 24
6
ttay*y aitt, degraded
<E
gas -like
7
rock, whit* to yatioh"
d
brawn vary soft with
10 24
23
*trying aRount of quortt
grains,: dry
SiI
Sit -like
_
S
S
24
214
10
92
gas -Like'
S
11 24
17
2 A
1E
7A
ast$iik
11
1'
20 21,
NR
14
at above, wet
170
ps •Itke
6
i-
NR
16
EdG
got=-tika
20
22
SORE=MALE WATER LEw L
OATA,

bRD,NECT
*AXE LOCATION
PROJECT
�N:EET
MLtMNiER: 50'i�is-+� iNMiER;
EE-
or#y Oft
Coopony
CONTRACTOR:
DRILLING
1006 E.
of oo iti d.
groundwater protootion
METMOD: 6-tS NSA
ithotb ,
North Corotino
28150
BILLER: Shorty
DRILLING
Atilt, obit* t-S
STARTt 1/12/90 ii.00 00
COMF'LE'TED: 11:00
LAND
SURFACE
LOGGED SYt PAC
UIRES
#�Att000
ELEifiATtOM
t I
C R
CONTAMINANT
"F L!
O Nf E
OISERVATIOM G MERAL
p f
Li T C
DEPT#
DESCRIPTIONS OF MATERIALS
OiRF YATtOM
E R
M O
AND CONDITIONS
INSTRUMENT: MOTES
E
T' L v
SCALE
hM
R
E Itt tint
1` 2r
U#ITS ppo odor
22
i
6 is 10
24
130 strong 2#8
TD*25"
optotoO so MV-9
26
Motor tobto of 14.0
20
30
32
3A
3
3E
40
40
42
40ENdOLE HATER LEitEL
DATA
AL
IATR
TIME
Ciefta
w6iL
Er i
CASINO
pENTii,

PROJECT
NAVE
I LOCATION
R AECT CR l #&
$aEE1 1 or
wuaEER t -litii u0sto t
IS- 10
Aroy *it
C-o
pan
COWTRACTOt t
DRILLING
ftRNi E.
/Nixon
#1 d,
Growndwotar Protection
01NOD9 6.25# NNRA
SWIRY,
North
Carott
o
E'#'150
DIILLtkt shorty
OkILLINS
list' obit #-°SI"
NtTARTt 1 1E 1 14:15
OXPLtTtV: 16:to
LAND
LOOM #Tt Rim
OwltERt
i~trtnos
LEVATIOWt #rate
T M
C
I.
R
CCNTANNINNAMI
a 1w IN
Ni
E
01SINVATION 41MAL
p N
tl
T
C
0Li
OfIC410TIOWS Of NnA ERIALS
0WIVATIbi
0
AND CONDITIONS
INSYR N*Tt VOTES
E
T
L
y
SCALE
how
R
S
(ft)
(in)
1*46.5'
NNIT$ opm odor
SANDY CLAY with #i t t;
reddish brown with yellow
R 1
12
24
22
R
t t t_i nR, god: density,
trwobtea oosity, dry
19
1
E ,t
20
24
20
.1
7
3
10
24
21
6
SAVE but sand It it #reat r
.
1
1
CLAYEY SILT, yellowish white,
'.
14
RrUha rock fr#fwan a
.1
A
q rrtx), ery daft, banded[
"
7
24
13
10
in ptwctta, obit. tretict
foliation)
3
T
17"
1E
R 7"5
24
22
14
16
CLAYfY TILT, oteac outs,
soft, banded in ptwcaa
r#tttt foliation), wet.
slight Ray
1R
C
1
r
C
R
cuttings
strong 9,8
s odor
# 1t# L *LNATR# LEVEL
DATA
SATE
T I Ott
Delta
4iL
AA E trtc�
Co ,Attc, 7
ATIR
#Ei"Tii

PROJECT
NAME / LOCATION
PROJECT 9GRIWG
� F' 2
:_
a::
r: It Ca pony
�
CGs[TRACTOR:
GRILLING
1906 t:
Dixon#L d.
Gro ndwot#r Pratsstlan
011`000s 6.25" NSA
s laty
North CsratlnR
281Stl
RItL[Rs Shorty
O4tLLtV4
R16s #*bit #-$I
STARTS 1/12/90 14s1S
COMPLETED: 16.00
too
$U#fkCE
LOGGED ETt Rim
TNERs
I� tnss
ELE4'AT'ION: gross
T' Mt
C s I R
CONTAMINANT
Tv
0 A M E
II K T C
OWN
QESCAIPTIOWS Of MATERIALS
OSSERVATIOs GExERAL
RSERVAtICM
T E
iMP
AND COMDII'logA
IMST*UMf4Tt MOTES
E
T 4P
v
SCALE
bm
R
S EtftD ftnl
1 fs�5
LIMITS: Dow odor
3A 1R MR
24
E1.
26
28
bottom of *Xptor#tion st
27.0 fsst
30
sd ptst,sd sA NW-1
3
34
Matt: YS• � salt sswpte
(split spoon)
3
3
AD
AE
AA
104EMOLE VATER LEVEL
DATA
i
4 EAM
IppoE
RSIG
"PTM

CAPTURE ZONE CALCULATIONS RV-2
DELTA PRDJECT 98. 0-88-564
Capture tone at is, y are esti#ated using these equations:
is * 2120 T i at is v 0/6.28 T i
ere: is : Stagnation point dovngradient of the recovery well
V • M12pi T i3Epi - Tan^-ld tyl
Where: T x Width of capture zone at a given angle
wplified for angles at 50, crossgradient of the recovery well
siad 100, upgradient of the recovery well-.
Y90 a 4y2pi TiltpiflBOi iz fWP6.26 T iil.,i
180 a 2110i T iCtpi/lSO1l803 = f216.28 T i .14
8here: g = Flow fgo#i
v+ = 3.14
7 m Trans#issivity fgpdifti
i z Hydraulic Gradient
Trans#issivity M is calculated iron hydraulic conductivity f i
derived fro# slug test Calculations using the following calculatio
I :
Where. hydraulic ionouctivity {gpolft^2)
# Aquifer Thickness (ft)
sti#ated to be 21 saturated thiciness in well l
Values: = 15.3 gpd9`ftA
48 ft Saturated thickness 24
734.4 gpolft
8 (flow) is calculated fro# tea es„.. w a? e;uition.
Cis =T2OOor6 t is/2O4O
Where s 9 Wravdovr in recovery veil (ft)
f µ 734.4 gpd"ft
Values: s 10 ft
d 3.672 gpi
8 5288 god t'gps x 1440 #infdayl
With the alcove calculated values is, M, and Y180 are calculated.
Values. !l -5287.68
T 734.4
i 0.O
s 23 f
YSO 86 ft
Y180 7"2 ft
References for calculations'.
8round-Water hydrology; sroodViter and Wells,
ffcWort#r and Smada DTIScoll, 19RE, p 1021

Dif(6LE WELL CAPTURE IDHE AREA CALCULATIONS
It-2
Arty Oil Dospany Analyzed by: MAS
One Stop ! 4 Date: 615190
Earl, North Carolina Reviewed by: SAP
Delta Project Nd� 60-6 - 64 Date., 6 71
I. £sti#ate well's flow rate using the equation D=Tes/2000 (Driscoll, 1386)
where: D = Flow rate (gpe)
T = Transtissiviti (ftlDTday)
s H drawdown (ft)
,;D = Cy7 hydraulic conductivity (ft/day)
13-50 m Cal thickness of aquifer if fully penetrating, otherwise
saturated thickness well penetrates under static conditions (ft)
10- 00 = Is] anticipated trawdown tftl
6AL6UATED VALUES:
T (K4aI m 36;53 ft``2Tday
D = 1.48 gpe'
g. Uith the recovery well located at the origin of a coordinate systes(x,y) and hydraulic
gradient sloping towards negative xr calculate capture zone curve using the equation
Y (Dear, 1373 are McUorter and E nada, 977)
where: i z natural hydraLliC Gradient (ftlftl
Y = width of capture (it)
INPUT".,
0.0500 z Cxl natural hydrau.ic gradient (ft,"ft)
LALCUATED VALUES
%s = 23 ft (downgradient stagnation point)
Y'a(c, = 36 ft (cross gradient width of capture at gU degrees fro# s axis)
Y13S = 54 ft (up gradient width of capture at 135 degrees fro* x axis)
Yl6O = 73 ft (aaxemue upgradient width of capture)
References. -
Rear, L , 1179, Groundwater Hydraulics
Driscoll, F., 1336, 6roundwatet and Wells, Johnscxn Division, 6t. Paul, Na
?14orter; 03. and Gunada, D.K., 1977 6roundwater Hydtoloq) and Hydraulics 6o.6tf Univ, Ft® Collins, EU

{
3 Ef.,,
Wiltmfion Gallery Flow Model Results

E
i
DR aT1 AL, RRT-tn Or LK:TS
1E ME
y
ORIDOTTION IF REGIOVF0
IlMe IMIS
TS.. "3n ASS T
%Y.aiP e,1
:.
i. It ::E.E RB
nn nrpw
..udP
KIZE "e.,�.
Wro $' Et"6u
+m.-:
bad YEArui
f��$�
LEV-'-P
i Ci WAS
ADMIMON 5501TY Or WK -to
is PERMEMNIT
INJECTION ,
L NOE
x
y
FLW-RATEE MKL^Eh7RATI0N RADIUS INDICATOR
.max
RS
MY
r W
IN I
16149
138.5s
!1
1. OEM
4 91000
-1
jR
1K. BE
137.16
e.14
1.
1. OfEW
-1
I W
1 1.27
25164
0.14
la W.402
11 "
-1
Q4
1 L W
M 81
0. W
1. WE#02
1.
_I
iNT5
On e5
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L 14
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a
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a
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0. Oe
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7.
ZTEL 5
150 W
5154
f. Ot
I. W+ ;
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16213
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IT& 15
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112,43
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f
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.
RR,-_ 63.
17Z. 8y A66
7. WE-
!STRS SIN-6 DEPAFTINS F, . INJECT.
INj
K SR ' ?.
TI F,
ANS 6 SSTA
Wane
3A Y��AR
none
3. e YEARS
24.
3 none
3.1 YEARS
45, el
4 none
3AS YEARS
71.;
none
3.3 YEARS
Ril el
6,
1.6 BARS
lee,
RNl
. SMON11+6
144.
RN
7.7 KXNS
1,
R� I61S
13.
I6 R
r
3L6A
I st 'n «ior+
A. SEMOS1
2 n ne
M YEARS
264.
1 none+..
3.3 YEARS
Saw
1 +nene•
SA6 YEARS
312A
I none
11 YEARS3316.
STREWL9E DENRTINS FROM I •; MM 41L IN1
:R UP WELL
TIl II
" E BETA
T IF6 �x
A F,T A,
IN DEESAMES
nryo�}ne +
:,k 1 YEARS
A
�
none
3,9 YEARS
48,
4 none
12 YEARS
7zf
S R",I
L.6 YEARS
96.E
6 R�1
11.E S
IM
Ui
7. i O T'tb_
144.
f4R11
:.j.5 Pi 1'ga __
MR
f^��i�,6q�,w�i
wno-�Y
1 nnne
1C YEARS
264.E
1 none++
M YEARS
28a.f
,4 none
3# YEARS
3}�A
.r none
, e Y-A- Rw
.
� I �Dr 3 \V2
AARTTN- --KIN 'h6 TI `NSA �
p
STREAMLICE REA w °
ARRt4L
:6 DESREE
I none
wit: YEARS
el
E none
3.YEARS
24.E
3 none
i I YEARS
48.0
4 tontion
E S
73.'
S 41.
a YEARS
56.t
6 W eo-
t a -.15•
I1
Mom+
1q
4t a y
e fig. [r.
,4,uFm
o-n
�
cv9r m.
w

15
sARS
36.e'
F7 _I-S DEEPAK7 INS 'F Its CTat Ill L I J
SR C- k'
TI`
E i`
S-REAM-M READ 0
ARRI -
IN DE6REES
I
Awl
W
.`
STREAMLINES ATIr F ICTI Wed I
STEAKLIKE *M
ARRIVAL
IN DEGREES
#xqi #q ppW�p1��
MM $$ YE
C.
none
.3 YEARS-
24.
3M
none
�. YE�A4
stagnation
1I. f SECONDS
7.
S.4 MONTHS
12n.
7
RRi
54. _�, "'THS
144.E
it
Rw1
8.9 MONTHS
216.0
11
stagnation
9. e SEMS
24e.f
12
staSnation
emk FECONDS
264.E
13
+++none+++
3.2 YEARS
28a.0
14
+..none+++
3.5 YEARS
3I .
1
none
3. A. Yt�.AR
3' . el
i " LIP+ES' DEPART11C FROK INJECTION 1
INJ6
ST I,
ARRAIM.
IN DEGREES
:..
noise FT"F'
11 YEEARS
name
3.2 YEARS
R� a
, °°b,.. M k HS
k E. l
Ran».
uf
14
it
Rw i
11.1 YEARS
21t.f
I1
stagnation
r
240.
It
sta "tatign
C, V SE
.
131 N'w �
y�
m yL'
none
:12 YEARS
Rya..
a
non_
11 YEARS
33i,
STREAMSTREAME
WACM:
ARRIVAL
IN DEGREES
i
nnon�e
Z. a YEARR""
C.
R'
RM
A
+++ncne+4-+
. x YEARS
46.1
stagna,ior
clt SE M
1Z�
a

YSRoEE
4.S
none
a. e Y3 FS;
4$
13
non
S. S YEARS
a8s. S
14
3.1 YEARS
32-S
15
none
3..4 YEARS
,S'
ST MES DEPARTING INJEMOK 611-L
I IS
Nlj*--R F
TIC` DS
Wad SETA
STREAKLINE
REAM
ARRIVAL
IN DESREES'
none
3.3 rt-ARS
StS
S
none
14 YEARS
34. S
3
none
3.1, YEARS
4M
4
stazral.cr
tle SECWS
72w S
R4!
S. 7 WHS
Sar S
S
R44
.SMDKj
ISt. 'S
7
R41
51
144,0
S
hi
1.1 YEARS
166b S
RW1
2. 1 YEARS
19 . el
IS
noneYEARS
L6.8
1I
none "
12 YEARS
844S
I
nano
3.1 YEARS
264.t
1
none
31YEARS
SS&
14
none
3.1 YEARS
3S.S
fS
none
3.S YEAM
336.0
STREP&INES O)ARTING FROV. INJEEMOK,
WUPGER OF
�EU
TIC OF
WLE S-TR
ST
ARRIVAL
IN DRS M
1
none+++
3; e. YEAR

q.--'R:ZALINES 0-ARTINEG � INJECTION WEELL
19117
Kf :R OF w:-_,
T I * 0
W)BETA
EADO
ARRIVAL
I K DESFEES
I +++nont++4
3.6 YEARS
C. f
STREPOLINES DEPARTING FROr, INJECTION WE; L
MEL 18
WLWR 0; irtu
TKE OF
WDLE BETA
STREMK UE :�M
ARRIVk
IN, DEGREE
i
3. 1 YEARS
e. P,
STREPKLIEF DRARTIP WIEC"71
ZW--, 15
rZF F WL-L
TIRO. OF
ANLE BETA
STREPOLINE EADOE
ARRIVAL
IN DEBREES
3. t YEA RS
9
STREAKLINEES DEPARTII INJECTION NELL
2 WEL 2t
M---F Cl
TIC- OF
kta.r BETA
STD AKLINE PEA DO
ARRIVAL
IN, DEBREES
I .. nonp..
3. A YERRS
e. 0
STREACIDS DEPARTIINJECTION WU
ZGWEL 21
MPSER OF �El -I
TIC F
WS-LE BETA
STL--4(-Its: RER-'HM-
ARRIVE.
IN FEE
3. 5 YEARS
9.0
STREAUKE.; DEEPAFTIW- FRS° WECITION WELL
Z 0r-- -I-
WrIZ-F 0- ZL!
TICE 0-7
FrIcIl firm
z.
DC -ES
T� 3R:
S
+-+n0nf,++4
3.7 YEARS,
t, t

57 GNU DEPARTINGS F I ,'TI I
f
!STREAOLINE RErDQ
ARRivkLR
DEGREES
none
.F YEARS
C.
DEPARTING FRS INJECTION WELL
aT ,-Ili U-DO
ARRIVE
IN' DES U-S
i + nnn
S. K-A
ea t
sTRZAK.IKES XPARTING FROM, I CT!% WELL I '-7:
ER OF ''
IIE OF
, E BEETA
STREAUE READ -
ARRIVAL:.
!K I C
none
.R-YEARS
y
CT IP F Cr. RTI FROO, INJECTION
TIOE OF
ANGLE BrA
I
ARRIVE
IN DEGREES
nn+
3. E YEARS.
STREA&K-S DENRTIN6 F, . I ° CTI
,
KOGER
TIC V
ANS-1A
STREAKLIEm
ARRIVAL;;
IN DEGREES
none
3.I N=�
S7R I%.: RTINE F "' I JEF' 1
�"F� 3
Krzl--; 07 WELL
TIC C-
ANSUE BETA
C �-1101-
ARRIVA,
IK DESFM
m
. o- --ARa
elf'
p .R-'P —1hEz' : FY+�;..h atE-a: �°
I ,�1K..,:..�I l WW`
L `a.+
t F
13
A;1F1vAL
IIN CEO `="C
aEWO.»: DOPARTW FRY
IN.TE7ION WEL
fo- -; D- RZ- Li
T k D
CUES«._ . BF -A
a -III FZA^- =
ARRTV'F
1

Hosea
3. 1 YEARS;
STREAKLINES. ARTI FRCtle,
I` AMOK W
Z04EL 1
KJMBZ-R OF
. 1.
TIME F
A KE BEET
STREWLINE
READU
ARRIVAI:
IN, DEGREES
II
mono
3. 3 YEARS
;STREAMUNES DPARTING FROK
I ' TI
I
IM RR OF
WELLTICBETA
STFEW,.INE
FUCHEDARRIVAL
IN DEGREES
1
n4ne
YEARS
0. el
ST E NE-t- ,:EPARTIW,: F.
I NTECTh ION WELL
Z rE 1
J, :-R 07
W,..;..�'.
ilia T
WLE -,A
STREAMNE
REAM
ARRIVAL
IN DEBREES
I
noneYEARS
8.0
STREAMLINES DEPARTINGS FRY,
INJECTION,
ZWEL 1
FR OF
iEL
TIiC- OF
ANSUE BETA
ST I
ARRIVAL
IN DES
I
4 nonf,
. 1 tARS
0.0 "
STREAMNES DEPARTINS FIM
INJECTION' I
ZGWEL 1 -
winEl OF
:-
TIPE OF
ANBLE BETA
STREAKLIWE
REP00ARRIVAL
IN DEBLEES
1
ne
1 - �'ARS
9w
S : I
T Rc . �,,� r;3r,I"
IE TICWELL
Z 16,
ERR 'R
WELL
TI
4Q11 R TA
STR �Ilti
�
AR;lvkQ
IK I1RR DER
none*..
3,5 YEARS

ltec: Mr. Ire ourttfo d, Federated Insurance Co.
Delta
Environmental
Consultants, Inc.
7401 e� Exec. Park, Svhe 206
Charlotte; NC 28226
7041641-9890
FAX:7D4/543-4035
North Carolina Department of Environtnent, ,
Health and Natural Resources
`2t Place
AshevWc,
o Carolina
Attention: !AA iuF Herbert
Subject: Phase fl Site Characterization Report
Arcy 00 Company
e Strap #
r[, North Carolina
Delta No.
Dear Ms. Herbert:
Enclosedplease the Phase 11 Site Characterization Report for the referenced site.
WS report contains information on; b dr g to and ground ter contamination
which re not includedm the initial report- A report can the amount of product
recovered a the gasoline recovery "em and specificationsfor the soil venting "em
e also included with this report.
Ile contents f the report should satisfy the requirements of North Carolina
Department of Environment, Health °and Natural ur outlined in
the letter dated Match 13, 1990 with the exception of analytical results from the new
well at the Pizza Restaurant. Delta will sample the well as soon as we are informed
of permission from the restaurants er. Upon receipt Of the analyfical report the
results will be submitted to your office.
If YOU h3VC any questions Or Comments Please Contact Me.
sincerely,
1+hAL CONSULTANTS, INC
ribrzer
l ° t Manager
. Robert Arcy, Arey 00 Company
. Pick Workentine, Delta Environmental Consultants
Practcal Solubons, to Environmental Concerns

AREY OIL CONVANY
ONE P
NORT14 CAROUNA
DELTA PROJECT NO.

1.0
WIRODUCTION
112 SCOPC Of SCrViCiCS
1
2.0
SOIL CONDMONS
2,1 Local Soil and Geology
.2 Soil Contamination
3.0
SITE HYDROGEOLOGY
3.1 General
3.2 Hydraulic nd cti ity and Flow Velocity
4
3.1 Ground Water Contamination
S
4.0
DISCUSSION OF RESULTS
5
4.1 Soil Contamination
4.2 Hydrogeology
4.3 Ground Water Contamination
4.4 Water Supplies at Risk
5.6
FREE PRODUCT MO'�' PORT
S'
60
RECOMMENDATIONS
6.1 Additional Assessment
&2 Remediation
6.2.1 Soil Remediation
612 Ground Water Recovery
11
6.2.3 Treatment System
11
6.2 4 Water Discharge Options
11
.0
METHODS AND PROCEDURES
12
.1 Soil Sampling and Classification
12
.2 Decontamination Proce4ure
12
.2 Monitoring Well Construction
12
7.4 Ground Water Elevation Measurement
13
7.5 Ground Water Sampling
1
16 Horizontal Hydraulic CDnductivity
Measurements
1d
S.
REFERENCES
1S
.[l
?N . ,
16

Table of Contents
Page
abler
Table T:
SOD Contamination . P PM)
Table 2:
Relative Ground'Water Elevations
Table :
mica) alysls - Ground Water
Eigure—s
Figure 1:
Site Map
Figure 2
Soil Boring "tions
Figure
Geologic tan Location
Figure 4:
Geologic Cross Section A -A'
Figure :
Geologic Cross Section B
Figure a
Monitoring " Well Uyations
Figure `»
'rater Table nt ur Map March 2
Figure &
Monitoring Well Hydrographs
Figure 9.
Benzene Concentrations
Figure 10,
X l ne Concentrations
Figure 11:
EDB Concentrations
Figure 1
F Concentrations
Figure 1
it Rernediation Systme Schematic
Figure 144
SOD''Vapor Extraction System Schematic
Figure 1
very Well brans
Aa,endims
Appendix ,
it Boring Logs
Appenoix :
Monitoring ^`ell Construction Details
Appendix
Slug Test Data,
Appendix
Ground Water Analytical Results
Appendix F.
Product Hauling Arrangements
Appendix F:
Preliminary Recovery Well Design5

AREY OM COWANY
ONE STOP #104
NORTH CAROLINA
DELTA PROJECT No. SWM-564
7-bis report was prepared by Delta Environmental Consultants, Inc. (Delta) on behalf of Arey Oil Company
(Arey 00). It Ptesents the Mtilts Of the Phast 11 hydrogeologic and ground water contamination
investigation at the One Stop gawline and convenience store in Earl, North Carolina (Figure 1), 71e
purpose of this investigation knas to define the extent and magnitude of ground water contamination,
characterize the bydrogeologic conditions at the Site and collect additional data to support the selection
Of appropriate remedial actions for the site.
illwme Of -S.CMCCS
The scope of services performed with regard to the PbASe 11 investigation included:
0 preparing drilling specifications and contracts;
k* obtaining pemits for monitoring well installation;
drilling of four it borings and installing two shallow and two deep monitoring wells on
February 19, 20, 21, 1990, including collecting of soil samples for lithologic classifIcation
and contaminant screening;
:surveying for vertical control of monitoring well elevations;
ground water sampling from the monitoring wells and two water supply wells in the area,
chemical analysis of the ground water samples;
collecting periodic water level and product thickness measurements in the monitoring wells�
performing %ster level response tests on selected monitoring wells to establish local aquifer
parameters;
installing a gasoline recovery system and making arrangements for disposal of liquid phase
bydrocarboits;
desiping, an enhanced vapor extraction S)stem to Mmove bydrocaftns from the area of
the tank basin at the site; and
6

Phw V Sit tSota
Stop # 104
Eart, Nortb Civolizit
Delts Prot= No,
Not 2
preparing a Phase11 Site ClIzIacterization Report far rating available prod . data, results
and ternediation options,
i i Ql NS
1 Locad Soil d Qlo
Fourteen SOD borings have been drilled at the site at the locations sbowwm in Figure 2. Soil borings Sly,-
I through SB-7 were drilled and logged by North Carolina Department of nviro ent, Health and
Natural Resources (DEHNP.)el SB4 through SB-10 were drilled in January 1and the
remaining borings (SB-11 through B-14) were drilled in Febmary 1990 and logged by Delta personnel.
e sail borings, were adv,a=4 to depths ranging from 19 to 45 feet. it samples in all rings except
SB-14 were obtained using a two-inch diameter, twenty-four inch long split barrel sampler. Samples were'
not collected in SB-14 due to the use of a roller cone bit to penetrate the outer casing and adv°ace the
boring so that a deep well could be set in the boring, 11C samples from the remaining wells were
described by a qualified geologist, it boring descriptions from -11 through SB-13 are included in;
Appendix A.
GeoMagic cross sections were constructed using the soil boring logs. lie areal locations of the cross
secBoras are shown in Figure 3. The soil profile encountered in the soil borings is illustrated in cross
sections AW and B- ", shown in Figures 4 and 5, respectively. Two varieties of soil appear at the site.
e predominant soil qW is a red, gold or white micactous sary clay which shom relict foliation andban
ding from the original bedrocL This material is identified n rolite on the cross sections
and reflects an apparently gneissic origin. A while, powder -like, clayey silt with large quartz grains w
as
observed in several borings. Ile Occurrence of the white silty clay is sporadic with some borings having
" car lenses or none and others, such as S - , being composedentirely of the soil type. The claye ° silt
is distinctly different from the banded saprolite and the contact between the two soib is sharp. At depths-
e white it becomes more competent and coarser grained, A granitic texture was observedin several
samples. Soil boring; SB-11 was terminatedat 30 feet when the wagers refused to drill ough a
competent layer of white partially weathered granitic bedrock. Bedrock was also encountered in S -14

Phase 11 Site CharactetMIj2a_R=
Out Stop rr 104
FArl, North Carolina
Delta pmi= No, "
page
t a depth of its feet while roller cone drilling, Cuttings washed up from this depth were micaccous, and
ndy;
Tle mixed occurrence f the gneissicsaprolite and the tic saprolite is consistent with t1 e local
geology which consists of Cambrian biotitegneiss and the Ordovician Toluca Granite (Goldsmith et, al:,
'.
22 Soil Iron;
soil samples recovered from the soil boringswetc scanned for the presence f organic vaporsusing an hN
phowionization detector with a 10.E eV lamp calibrated to a benzene standard, Soil was collected
in airtight jars and the head space was allowed to reach equilibrium (appro7dmately 20 minutes) before
screening with the PI . The PID screening results are summarized `able 1 and are shown on the
boring lugs in Appendix
e distribution of organic vapors in SB-I through SB-'10 was described in the initial report with sail
contamination by contact ma, liquid phase hydrocarbons ) being identified only in 5 "2" Organic
vapors in the remaining rings probably resulted from migrating troleum vapors and contact with
contaminated ground water
Organic r re detected in all soil borings drilled in February with the exception of SB-13.
detectable of organic vapor concentrations were detected from a depth of four feet to at leut sixteen feet
in SB-11 A solvent-Ue odot was noted in the soil which registered r n the PID. Organic s por
re detected and gasoline -like odors were noted in samples;h° rn below the water table in -11. Sail
above e water table in this area did not appear to be affected.

_...... --....
ftase V Etta Characterizaflon Rtnort
Company
CkK Stop # It
2.1 b
Fourteen soil borings were completed as monitoring wells. Monitoring .l through MW.7 were
installed by DEHNR personnel in November 7, 1989. Monitoringwells -8 through h MW-10 were
installed by Delta personnel in January 1990, Monitoring wells MIA'-11 and MW-12 plans deep wells DW-
I and DW-2 were installed by Delta in February 1990, 7le deep wells are constructed with 2.5 foot to
ng
screens set immediately above r k indicated by auger refusal, 77be locations f the wells are shot
in Figure . Monitoring well construction details for the onit ` g weUs `MW-8 through MIAT-12 and
-1 and DW-2 are 'included in Appendix
ONEFTIAM,w .::w,!
M

PhaseSite characle
ny
ODe Strap ark ttt
Nortb Carolina
No,
Post 5
Calculated hydraulic conductivity values in the shaliow wells ranged from 1.64 x 104 in. f in) in
MW-9 to 1,42 x 10-3 ftirnin in .1 � NM1.9exclusively in the granitic saprolite and
10 is screened in the Micaceous banded saprolite. Values for the deep wells ranged from 2.96 s 104 in
-1 to L76 x 104 feegrin, in —1 Slug test data are included Appendix
Ground water flow, 95 sh vwT in Figure 7, is toward the east-southeast. The calculated gradient across the
site using '-1 and MW-12 is 0.0067. Ground water flow velocity was Calculatedto be between. feet
r year (f ) in - and in MW-10 in the Site Characterization Report and recent data from
the additional monitoring wells is consistent with these calculations,
A component of downward vertical flow appears to be Present in the area of DNA'-2 and 'm11. The
calculated gradient between these, two wells is 0 .
tend Ater nta " atlon:
Ground water samples were;collected from the nonitoring wells at the site on January 3, 1990, n ar}
19, 1990 and March 2,-i e water supply wells for #3 Body Shop (SW-1) and Jack's Fast F (4*'a
) were also sampled do March 2,1990. All monitoring wells at the site have been sampled at least canes
since thew installation. The waiter samples have been analyzed for the presence cat targeted gasoline
parameters benzene, toluene, etbylbenzene, and ttylenes ) and meibyl tent -butyl ether F),
Selected wells bave also been sampled for the presence of di -isopropyl nether and ethylene
d bro 'de ). The results of these analyses are included Table 3 and laboratory reports and field
clutin of Custody records ate included in Appendix
e concentrations and distribution of benzene, xylenes, EDB and NME are shown in Figures ough
12. At the present time the ground water at MW-9 appears to be impactedthe most, although
COUcentrations of EBD and benzene appear to exceed No a water quality standards in ,*3
-1 , '-11, DW-I and the #3 Body Shop well. XYIeues exceed water quality standards in - ,
'-1 and MW- . I-(;w concentrations of benzene and MTBE were reported in M'w'-12 and low
concentrations of EBD were reported in Jack's Fast Food well,

FhW IT Eats Characte ' tins
One Stop * 104
in
b
tD �Contamiution
It is DOWS Opinion that soil coritamituttion by contact with liquid phase hydrocarbons Iexists only
in e Wea of the recovery well and SB-2, The, remaining contamination detected by the pjD is probably
the result of migrating organic vapors or contact'with cOntalninated ground water,_
The hydrogeologic investigation focused on the ground water in the upper unconsolidated material of the
site and at the interface of the and bedrock, ne water table is located in highly decomposed peissic
and granitic prolite- The, to in slo gently tothe east-southeast and there are no surface water
withinbodies a rter-mile of the site.
Hydraulic conductivity varies at the site and appears to be dependent on the location of the well; Low
conductivity values were recorded for the denp monitoringwells well as most shallow wells.
Conductivity values for -10 were an carder of magnitude greater than those of the other wells. Using
estimated hydralic ,liven in Section 3.2 the gtOuDd water flow velocity at the site ranges from
3.5 to 14.7 ft tr
It is Delta's
opinion that actual flow' rates .at the site maybe higher As floes" may be channeled through
relict fractures or zones of higher conductivity in the Saprolitc An area f increased conductivity appears
to .exist near MW-10 and the #3 Body Shop welL The linear extent of contamination indicates that
pumping stress along this zone, y have accelerated the movement of contaminants in the direction of
the 3 Body Shop well:
ij—Qand ater n tion
and water contamination by petroleumhydrocarbons is evident at the siteGround water
Contamination appears to originate at the tank basin of The One Stop and the former "tank basin located
at the Suburban Video outlet. Contamination apparently extends beyond the Body Shop well and very low
concentrations Of benzene were detected in the most dowt-gmdient well' w'-1

MY CW Company
Otw Stop #104
Dom Prcjbm No, 504WRIA
Ile t Widely distributed dissolved line constituents found at the site are EDB and " n :
XYlcnes are Concentrated in the area f the body shop well and MW-9. The concentrations of benzene
d EDB in lack's Fast Food well and benzene in DW-2 are very low and may be the result of laboratory
or sampling errors.
;r• • t#� a •.�-r ,., � a�
�� r� ru e r +e - � ••rt � �" s
! r
jSk
Based n the data presented we, it is evident that at least one water supply .well has been impacted by
SMUDe Contamination. The water in the #3 Body Shop well does not meet North Carolina water quality
Stazdards in terms or benzene, xylene and EDB concentrations, Reportedly, the water from the well is
bot used for drinking, however t is Delta'sopinion that the well should be condemnedla e
nplacemens well abauld be drWedinto bedrock and Cased off from the upper 40 feet or uncorwlidated
material. 714C casing will prevent contaminated water from'entering ' the well and
minimize e pumping
stress from n `nants toward the well, Ile preferred location for the well would be daAm-

Phm II Site C_'haracterizrion ItUom
AM OU Company
One Stop #104
Nortb Carolina
Dells Proj= No, 30-WS64
gradient from MW-12, The final location of the well would be dependent on property boundaries and
health department approval,
At the present time Dclia is unable to determine ine whether gasoline contamination exists in ,Jack's past
well. Concentrations of toluene, ethylbenzene, xyl nes MME were below detection limits of one part pet
billion (ppb) A slightly elevated reading of two ppb benzene and 0.028 ppb EDB were reported its water
from the well. Delta proposes that the well be re -sampled for thm compounds to determine + hether
I;
contamination is present in the well.
L-0 FREE PR R
e gasoline recovery tern described in the initial report was installed on March 2. 1990 and began
operation March 7, 1990. Ile recovery system consists of a pneumaticaDy operated gasoline skimming
min
pump 'which is set one inch above the line and water interface. 71te pump is capable of pumping
one ,gallon per Minute and can adjust itself to changes in -water table elevation, , up to two feet, by %my of
,sensors and a self-regulating linear tracking -unit. 77he product is pumped to an on -site 2000 gallon storage
tank byixay of underground lines, 71c tank is equipped with probes which signal the pump to shut off
when the tank becomesfull, Arrangements have been made with James Waste fail Haulers of Charlotte,
North Carolina to remove and properly dispose f the produm A later detailing, the arrangement is
included in Appendix
To date, over 50 gallons of product n removed m the recovery well at the site:, The product
is clear and slightly yellow and resembles the regular unleaded gasoline that was present in It
is currently fine tuning the level of the pump t recovery is maidmiza, a water 'table surface
reboundedp product was removed and the two toot adjustment limit tot the pulley system was
e elevation of the pump was adjusted on March 27, 1990and it appears to be working a

it r��tc . to r
Ott t *104
No, 50418564
fig_R9QQM_MEN_DA_*_n_QNS
diti resat
It is lta's opinion that additional analyses of ground water are necessary at the site to establish the
sources of contamination i � , MW4, - r MW.10 and •ll,; and to investigate possible
contamination in Jack's Fast Food and the pizza restaurant wells, Water from the monitoring wells and
mtaurant w ells will be sampled for the r c F and EDB, The monitoring veils w
ill
be sampled for total petroleumhydrocarbons in the has chromatograph method. The
chromatograms will be comparedto each rather to determine whether Similarities or differences exist. The
results will aid is determining whether the leak at the One Stop is causing the contamination in the body
shop well or if other sources should suspected, lta plans to sample the wells in April 1990. The
analytical results should be available inlay 1990,
'atib
CZIi ea ediaticaa
e soil in the area of the One Stop tank basin has beett contaminated by contact, with the LPH plume
as it Moved throughthe soil columnto the water table as illustrated in Figure 13. based on the volume
of LPH in the recovery well, the soil is probably contaminated in excess of the 10 pit TPH guideline set
by DE14NR. In order to prevent additional contamination of ground ter the it should be temediated,
Delta has selected sail venting as the most viable sciii remediation technique for this area, Removal of
contaminated it was not considered due to the;vertical extent of contamination, the reach limitations
of most backboes and the presence of the USA systems.
e proposed Soil vapor extraction system will consist of a vacuum blower, an m4ine particulate Ater, a
wlklesdng ter, inlet and outlet Silencers, and an exhaust stack (Figure 14
e vacuum blower proposed for this site will be powereda one to two horsepower (lip), single-phase,
ftPlosion proof motor. 71c horsepower requirement will, depend on the vtudat selection. The blower
wffl temove 30 cubic lect per minute e ) of air at a three inch mercury vacuum. The design
incorporates as in -line particulate filter and coalescing filter to reduce wear on the blower and motor.

Phase 13 rtj igj Re on
Arty OR y
OIX Stop # 104
FArk Nortb CwvLza
N.
rASC t
F i { ,: YY,. 1i • � �::: i dF +�..: k dews, °.{ t { d'.Y { di. :{ -• { � ^ { '..
:� dY { � Fit ! ` �: ! ' •. { 1i Nk �' � i .,. i ,.
.lm
i
{
e proper operation of the system is dependent on sustained drawdown Of the water table in '®fa
tberefore installation f the r emractiOu system can not be scheduleduntil discharge and construction
pertafts are issued for the ground water recovery test described low,

uttd ater_
Based on the hydraulic conductivity and went of contamination at the site, it is l elta's opinion that an
additional very well will be necessary to recover and contain contaminated ground water at the site,
e tentative Lion of the well is shown in Figure IS. This location was selecteddue to the apparently
higher zone of conductivity observedin the wets around the #3 Body Shop well.
Preliminary calculatio indicate a flow rate of about three gallonsr minute m Errant a 12-inch
diameter well with a 10 foot drawdown, The radiusof influence to this well is estimated to be about
80 feet. Ile calculations are included in Appendix F.
e flow rate from RW-1 W been calculated at ICU than one gpm due to the low hydraulic conductivity
observed '- and MW-9 and the tact that the maximum drawdown in the well is restricted three
feet. Delta beBeves, however, that the actual recovery may be, higher due to the enhanced flow usually
associated with sOU venting systems attached to wells. If recovery is not sufficient, a larger, deepet well
may have to be i-w--talled ir± t ;r area to increase recovery.
Full descliPtiOns of the proposed recovery well(s) and construction details will be included in the
Corrective Action Dian which is scheduled for submittal on May 15, 1990.
Preliminary K�ygtem consistsoil4ttet,,

Phaw R Site Characit
Arey M Company
One Stop OF 104
Ewt, Nonb cavvuna
Delta PrCoom blo, 3048-564
PW
for the treatment system cifluent. 71C infiltration Option is preferable as there is sufficienj property up
grad ' ient of the leak site to install an infiltration gallery and depth to tern this area is about 24 feel,
Delta plans to perform permeability studies in this area to determine whether infiltration rates would
allow discharge at four to five gallons per minute, If the gallery can not be designed to accommodate the
flow an NMES permit application will be submitted. Details concerning the disposal option will be
included in the CAP
ILLS-0 ��Rrl �dmm �irica tilt
SOD sampling -A-as done L ;2ctordancc with AS7M:D 1586-94. Using 011is procedure, a 24 inch by two inch
O�Dsplit barrel sampler'was driven into the it by a 140 pound weight falling 30 inches.
As the samples were obtained An the field th
Following description the soo samplew-as, placed in an air tight glass jar to prevent loss of organic vapors.
After twenty minutes, the bead space above the Wil was screened for organic vapors with an hNu
pbotoionintin detector with 10 tV lamp Calibrated to a benzene standard, The PID readings were
recorded on the boring logs which are included in Appendix A.
=��Ilon �Proc�edure
Special precaution was taken to minimize cross-COntaminatin prior to mobilization jknd between soil
borings. All drilling equipment and well materials were steam cleanedand pressure washa 71c split
a"U" w4ler P. was Collected. Cgire
was tAlstift 16 OieOtht 00buct Of Anil and grease with drilling equipment and� AI6hftOri4 wa materials.

Phase 13
ate mace sa�a�r rt
Arq OU Company
000 Stop #10,4
Delta Project No,
73 nt ell rats
e monitoring wells were constructed as shown in Appendix B. The shallow wells consist of two inch
Wide diameter ten foot long, O.010 inch slob lOush thread, PVC screenconnected to a 2 inch
scbedule 40 flush Wead PVC riser pipe. ne deep wells consist of similar materials with 7-5 foot long
WeensIle well screen sand packed °th mediumgrained cleattsand to two feet above the screen
mind top th a two tool thick bentonite l in all wells.
e remaining r was groutedto the surface and protected by a locking, scalingwell cap. All wells
re completed below grade and covered by eight inch -diameter steel manholes. With the exception of
W-I and DW-2 the; well screen placed feet above and eigbi feet below, the static water table
to insure the entry of free phase product into the well and to allow for seasonal fluctuation in the ground
ter table,
F R'. ' BI a #♦♦ ',. dM 6 i y� .. ,. . M .. M .. �, � .. � i M �, dM
d Water lirr
AD monitoring wells were sampled from suspected Cleanest to most contaminated according to the
f011Owizg PrOtOCOU, All pertinent information was recordedsampling information forms.

bite r�c�e ` ti �
Arty M Company
Otw Stop * 1Q±t
Delts Fraim No
Pop t
tell t
StepMeasure water level,
Step 2 . Purge well. A laboratory decontaminated teflon bailer was used to purge
each monitoring wclL A minimum of three to five well bore water
lumen were removed from each well.
Step 3 E Collectwatetsarnples. Water samples were collected using decontaminated
tefln bailers;
Step 4 _ Prepared samples for transport Samples were cooled to approximately
4 degrees Centigrade for transportation .
Step 5 - Transport samples. Water samples were stored and transported to
specified laboratory, following all documentation and chain of custody,
Step 6 ® Decontaminate field equipmen Water l measurement uipment A
cleaned itb methanol followed by deiotized water
e Field Chain of Custody Records were shipped with the samples to the laboratory, and upon arrival,
the triples were checked in and signed in by the appropriate laboratory personnel, Uboratcry
identification numbers are noted on the Field Chain of Custody Record, Upon completion of the
laboratory analysis, the completed Field Chain of Custody Record was returned to the project manager,
e following list identifies e various targeted chemical constituents and the analytical methods use4 for
their quantification
ar etcd Chemical 'aramete hJe_thodYoa
Benzene, Toluene,Ethyl- EPA Method
benzene, Total Xylenes and 602 Compounds
EDB EPA Method 5N

rha" 17 Site cbhraqtrrjttca R rt
Arcy 09 Company
Oft Stop *104
Eark Nortb CArohna
De" Proiect No. M-4t&564
Single well permeability tests were performed in monitoring wells to Obtain Order Of magnitude
permeability data. The tests are generally performed in monitoring we 'lh with no detectable contamination,
After determining static w-Aler levels, a Solid decontaminated slug of kno)4,n volume is instart eously
introduced into the well (slug in And water level teCOMY data is collected until the water level in the, well
reaches equilibrium (static water level). Alternatively, after the slug has been introduced and the water
level in the well returns to static conditions, the slug is instantaneously removed (slug out from the well
and the recovery data is collected until the water level in the well reaches equilibrium. The data is
collected either manually, with a timer and electronic water level indicator, or with apressere transducer
and data logger, Tbe drawdo%11 is graphed as the 109 value Of change in head (feet) versus time,
Horizontal bydraulic conductivity is derived by statistically fitting a line to the appropriate portion of the
drawdoAm curve and determining its slope and using appropriate flymu!15 (Bottwer and Rice, 1976),
Bouwer, H., and Rice, KC., 1976, A Slug Test for Determining Hydraulic Conducti�rity
of Unconfined Aquifer with Completely or Fully Penetrating Wells, Water
Resources Research, v. 12, pp. 423-428.
2- Goldsmith, P., Milton, DJ. , and Horton, J.W., 19M Geologic Map of the Charlotte 1 * x
2* Quadrangle, North Carolina and South Cstolina, U.S. Geologic Survey,
Miscellaneous Investigations No, 1-1251-E.
1 Houg, G.F—, BrueH, CJ., and Marley, M.C, 1984. A Study of the Mechanics Controlling
Gasoline Hydrocarbon Partitioning and Transport in Ground Water Sysierns,
United States Department of the Interior Research Project Tocktaicai Completion
Report G832-06,

5ile ae ' aicr 1 rt
Arty 09 Company
004 s * 104
p
Kramer, W.H., and Hayes, "% ., 1987. Water Soluble Phase of Gasoline, Results of a
Laboratory Mi)dng Experiment, New Jersey Geological Survey, Te bnieat
Memorandum rand - 13 pp,
5. Sax, N.E., and Le%is, M., Sr. 1987. Revision of the, Condensed ChemicalDictionary by
G., Hawley, 1981, Van Nostrand Reinhold Company, Inc., 122S pp
2.0
e recommendations contai report repr nt out professional opinions, 71m opinions are
Wrived at in accordance with ;currently a pted bydrogeologic and engineering practicts at this time and
location, Other than this, Do warranty° is implied or intenda
This report ww prepared by,
DELTA ENVIRONMENTAL CONSULTANTS, INC
rily�n i er ate
G In r Manager
er
This report was reviewed by,
Stephen Date
I A-
o to aAmen t Manager
Akmc

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TABU 2
RELATIVE QMA0 MATER tavATIMS
oft
One Stop
tort, North Carolina
Delta Project 60. so-M-564
fT IW WELL:_ .T
RELATIVE ELEVATION:
106.07
DATE:
01/ 3190 01/11/90 01/19/90 03/02/90 3 06/90 03/27/9
DEPTN TO WATER:
26,59 26.34 26«24 25.15 24.92 24.44
GAOUND WATER ELEVATION;
$1.0 $1..73 $1.83 $2.92 .25 83.63
MONITORING WELL m2
RELATIVE ELEVATION'
97.89
MATE:
01 0319D E11/11/ 01/19/ 03/ 2/9G 03/ /90 3/27/90
DEPTH TO VATER:
31.6 31.36 27.35
GROUND WATER ELEVATION
66.29 66.S3 0.54
DEPTH TO LPN:
38.6 36.36 29.43
LPN TNICKNEaS FT,
7 5 2.2
ADJUSTED UOUND WATER ELEV.:R �1. ?0.28 72.19
MKITORIWO WELL. MW-3
RELATIVE ELEVATION:
106.12
DATE:
01/ 3/9C 1/11/90 01/19/90 03/02/90 03/ /9G 03/27/9L
GEPt'N TO WATER,
24.95 24.72 24.63 23.37 3.26 22.85
GRGLIkC WATER ELEVATIONa
$1.17 $1.+4 91.49 $2.75 92.96 M27
90411CRIUC WELL. MIW-4
RELATIVE ELEVATION::
105.43
01/�t3/9I7 01/11/90 1/19100 43/ 21`9G 03/ /9C 03/27/90
EFT D
DEPTH TO DATER:
7"6 .56 .32 22.47 22.32 21.85
GROUNC WATER ELEVATION:
$1.67 $1.47$1.91 $2.96 MIT 63.5E
11OR1WG WELL: 1460-
RELATIVE ELEVATION
104.5
DATE::
01/03/90 1/11/90 01/19/90 /02 9G G3/08/9G 03/27'/90
DEPTH TO►TER.
.35 23.15 M09 2196 21.64 21.42'
OUWD WATER ELEVAT'JON-.
$1.15 $1.35 81.41 .52 92.66 83.08
dk aNOMiti0fing welt Instoltod J ry IWO
1t towed and t
accessible
f t ring welt installed February IWO

Iotaa 2 JSqnL(nwW
Page
MNIT04100 WELL:
RELATIVE ELEVATION:
DATE.
01 D3/ 1/11 01,/19/90 03/02/ / /03/27/90
DEPTH TO WATER:
19.4,E 15.74 15.63 i.22
QAOUXD, WATER ELEVATION:
T .03 80.2S $0.36 al.?7
MONIT00190 WELL: ,7
RELATIVE ELEVATION
.21
DATE:
01;/03/90 1/11/90 01/19 / 2/90 3! 4C 3/27/90
DEPT* TO WATER:
12.& 111$9 V.86 9.79
GROUND WATER ELEVATION:
$6.37 97.32 89.35 e9. 3
ITDRINC WELL: MN-E
RELATIVE ELEVATION':
10017
DATE:
01/03/90 1/11190 01/19/90 /0 /90 03 0 ,/90 3/27/9
DEPTH TO WATER;
+ 18,49 17. 16.w 1E.52
GROLMD WATER ELEVATION
91.68 .11 &3.29 93.65
POKITORIWOWELL:
RELATIVE ELEVATJOH:
100.7
DATE:
D#rD3t 01/11/90 01/19 /02M 01/ /90 3/27/9
DEPTH TO WATER:
19.59 1S.3 17.
"CURD WATER ELEVAT10h
81.2 82.41 92.98
POkITOP194 WELL: Aw-10
RELATIVE ELEVATI
%67
DATE.
01/ 3/9 1/11 01/19l 03/02/90 03 /9Ik 3/27/9
DEPTH TO WATER:
16.34 15.01 U.96 14.59
OINK WATER ELEV010Na
$0.33 $1.66 $1.69 82.08
ITOPINC WELLt W-11
RELATIVE ELEVATION:
103.78
DATE:
01/ 3/90 01/11/9E 01/19/90 03/0 /90 03/08/90 03/27/9
DEPTH 7D WATER;
+++ 20.64 20.59 20.45
GROLWD WATER ELEVATI
.11# $3.19 8333
tiriry wetl fmatoll#d
j ry Iwo
watt toveriod t accessible
MK)nit*rinQ wett was Irmtoliod fobruary IWO

EtCR 2_Ec ontI medj
e
MONITORINGWELL: NW- 12
RELATIVE ELEVATION:
90.53
DATE.
01/ 3✓ 01/11/90 1/19/ / 21 03/08190 03/211/
DEPTH TO WATER:
10.51 10.4 10.54
GROUNDUATER ELEVATION
.I92 1 79.99
MONITORING INELL,- OW-1
RELATIVE ELEVATION
.22
DATE.
01 3/ 1 11/ 1/1 3/ 2/90 II /t / 3/27/90
DEPTH TO WATER„
« 17-37 17.24 16.88
GROUND WATER ELE ATIOO:
$1.85 81.98 W. 34
'IT IN WELL OW-2
RELATIVE ELEVATION
1 3,2E
DATE:
01 03/ 1/11/ 01/19 / 2/ 3/ / 3/27/90
DEPU TO WATER:
15.45 20.96 2 .A
GROUNDTER ELEVATION:
67.93 92.32 .3
olotm montiorimtt imtetled a � 1
well covered and not
#ccegsible>
44 MOMItoring welt was installedFebruary 1990

TA`LE 3
CKENICAL ANALYSIS - ORDLY4 WATf*
Arty Oil to"ny
Or* stop
Ear(, Worth Carotim&
Otit# No. so-w-%4
WXITC*I*a WELL: #W-1
DATE
TARGETED PARAMETER UNIT
01/03/90
#EWZEUE uQ/t
lei
TOLUENE ug/k
41
fIXYLSENZENE UQ/1
41
XYLENES UQ/1
<1
XTBE Ug/1
<1
too Log/ I
IT IN 6TLL: NW-2
DATE
TARGETED PAUXEIER UNIT
01/01/90
4ENZENE VO/I
TOLUENE W/1
E1141LIE WZENE ug/L
XYLENES ug/L
OTRE ug/t
too
`PT IN WELL: 04W-3
DATE
TWETEC PARAXETER UNIT
01/03190
IENZEWE Ug/1
73
TOLUENE ug/G
5
ETRYLSE)iZERE LV/1
is
MENE$ uq/1
190
NITRE; UVA
<5
M
0.074
IT INS WELL: #W-
DATE
TARGETED PARAMETER UNIT
01/03/90
NENZENE ug/1
270
TOLUENE u0/1
<20
ITNYLSENZEWE w It
76
XYLEWES ug/t
sic
NITRE Usti
'C20
Octet: 00"ItOHN wtit "ot surpl*d
&*
to pr*&wC* of LPN
porameter r4t wwiyzed

fiTobtt 3-(C t1 )
Poo 2
M*ITCRIXG WLL! -
DATE
MUTED PUMETER UNIT
01/03/90
wi(zEi(E L
EY TL#Ei12EW /t
1
ITTOE UO/I
g
Us L+13
WN1704190 WELL;
OATS
AR ETEO PARMETER LIktT
01f0 /9
ILEILEEWE 1
40
YOLUEt4E Ug t
41
ET 'TLBENZE E usit
'cl
X LEUEE wilt
t
TE
Ma u5
W)WITORINt WELL.
GATE
TAIRaVEG PAID TER MIT
01/0 00
EhENE, uy,r i
t
TOLUENE us/1
ETN LEENZEEE tG
V1
XYLENES tl
`1
SE /t
EDS UQA
IORI NG WELL: -E
DATE
T GETED PAUMF7FP L JI
01/1 90
EWMif / 1
1
TOLUENE LVA
ETNTLSEN204E LVII
0
XYLERES Wgit
I41GE tpt1<
cT
M /i
0.22
OIPE u111
41
DISE. LEA} /t
<0.00
LT' IWG YELL; MW-9
OATS
TAAGETED PAOXETER MIT
01/19 90 /02/90
MEE E /t
19000 39000
uEE UR/1,
S5000 woo
1EYNYLUNZEWE WA
2600 2500
MINES U011
14000 9000
EE /L
00DO 1000
E /1
9.9 6.7
RIPE 44/1
E2000
OISS« LEAD man
4 >005
Mote: aMom' t 1 M9 wtI t ¢ed-CkJe tO Pre4eme Of LP
*' r ter not orwtyztd

MWITORING WELL: WAD
WE
YAAQETED PARMETER LIMIT
0 1 110/90 03/02/90
K*ZEWE WQA
TOLLIEUE Usti
V 1200
VXYLIEvaq t4/1
Z2 ISO
XYLEMES 44/1
zo 1000
INTIE usil
00 230
IDI UCAt
C.41 0.35
WE ;. q,
$50
VISS. LEAD
MWIT0410IG WELL: OW-11
DATE
UIZETE0 WAXETER UNIT
03/02/90
SEWUNE t4/t
S40
TOLUENE UG/1
270
MYLSEWUNE ug/l
S6
XYLEMES WS/1
214
XTBE ug/t
170
EDE W/1
0.64
MONITORING WELL; NW-12
DATE
TARGETED PAP,&*C*,EP
03102/r,
SEWME woll
7
TOLUENE usA(
2
ETHYLSENZEWE ujl/t
0
XYLEMES USA
<1
XTRE ug / 1
9
08 ug/t
40.020
WN110RIM4 WELL: OW-1
DATE
MUM PARAMETEP IT
03/02/90
KXZEWE usli
250
TDLUEWE t4/1
2000
tTRYLSENZEWE ug/t
<25
XYLEMES UO/I
"DO
*TIE ug/l
Rc
ED$ Log/
TORIUr, WLL' DW-2
DATE
URGETED PARMETEst UNIT
03/D2/90
KXZEWE ug/l
t
VOLUM up/t
'Cl
tilln"ItZEWE UG/1
AT
XYLEVES 4411
cl
KTRE us/1
41
tDo MG/1
IC0X20
moinitor1mg w-el I Mot swpled OA to prwmt of LPN
P*rsftttr not anaty2ed

_.................
Pogo
"ITORINC VELL
-1 #MY 990P WELL
ATE
WrAETED PARAMETER
UNIT
stuZINE
vatt
TOLUENE
1EfittYLIER E
t
XYLEMES
/t 1100
9E
a/t 39r
E
us/I 0.97'
NOWITORIK LL:
SW-2 JAM FASTJOW WELL
Y
TAAGETO PAXAMIETER
UNIT 94
BENZENE
u5&/t
TOLUENE,
uo/'t T
ETRYLRER E.RE
USA
EDS
t 0.0Z8
CisfwnitOrino we I t MOT L*d dut t far e of tP
r tt"Iyztd

�.. _ .
r �
BODY SHOP
P YSHOPJ
*
"a
J L LINE + µ
y�A LEAK
PVmPw
w fSLAND
rr tD
TANK
Iso
j @lr J4IJ
<°"°4 0 90
r ar r S T
tol W"'LY Wu SITE MAP
GRASSY AREA EARL,
PROXC t Nei. PREPARED 61
cis, TE, RfWAU) ey— Delta
3-27-90 A U.

-3 s
- *
AL
#3 900Y SHOP +
1�
—#
AST tB 240, �
0100,O),Y Iva
so I
PUMP
W ISLAND
+ 100;
q —w � �
w
11ro
0
90
Sl �bg SCALE (FEET)
— a
LEGEND.
SAPOKY wm SOIL BORING LOCATIONS
CRASSY AREA
0 Sm DORM EARL, NC
PROJECT N57
OATS
.-.�

.<
03 BODY
w
lfk
r FAST
PFOOD WELL
SO-1 ISS-30
V00
SAY Age
a
r M
E:
LEGEND.
Y Wa
Y
CRASSY AREA
SOIL WRM
0 90
SCALE (FUT)
FIGURE 3
GEOLOGIC CROSS SECTION
LOCATION
ONE STOP 4 L CO.
EARL C
PROXCT NOm a
50-88-564 C H.
SATE
� - "l

r
SOUTHWEST
NORTHEAST
RED CLAYEY,'
SILT * GRAVEL
sf$o
Its,
-91 O
CLAYEY SILT
RED
WHITE IL
ROLITE
1T /RED)
1
RED
CLAY WITH
BROW
SANS
SILTY CLAY
I E SILTY
CLAY
AND
BANDEDW
MICACCOUS
BANDED
SAPROLITE
MICACCOUS
APROU TE
70-
4 WHITE
COARSE: NITS
�AND
FIGURE601
GEOLOGIC
CROSS SECTION A -A'
LL9ENIL-
EARL, NC
PROJECT t
, 0
MPARM
SCREENED
INTERVAL
,.
--- 4
C.W.H.
HORIZONTAL A,LE
DA TE
R04 YADefta

110—
WEST
T
�«
_7 o-
oklf
I'M
—
YELLOW
CLAYEY
LA Y
�s
SILT MTN
SILT
WTE
SAND
CLAYEY
90—
RED BROWN
SILTY
SILT "Bi
SAND
BANDED
BANDED
CLAY
MICACEOUS
MIAE
SAPROLITE
SAPROUTE
BANDED
MICACEOUS
SAPROLITE
FIGURE
5
GEOLOGIC
CROSS
SECTION B-B'
LEGEND:
EARL,so—
90,
PROJECT
HORIZONTAL ALE
- -�
w
LATE
REVIEWW 87Defta
ACenwAtont^,
3--- —
�

mw—
lww-120
r
mw— j
8, !
CIO wv yr r
' 99 7 U
.00
t
mw M
11 0 9
ow v.
_.
INA
Rl SCALE (FEET)
40
mw
WATER TABLE CONTOUR MAP
MASSY AREA
MOWTORM WU EARL, NC
,JLNit
(40) MAIM MOUND WATER ELEVATION 50-88-564 C.W.H.
Rt
, - 27 -90 µq

u,
_..:
..
HD
11
HD
-M
1/3 1/11t/19 3/ 3/8 31271/3 /i 1119 3/2 3/8 3/
27
(19
( 99
ow -
Re
FIGURE 8
MONITORING WELL HYDROGRAPHS
ONE
1CO.
1/3 1111 1 3/ 3/8 3/27 EARL, NC
We PROJECT NO,, PREPARED 01
199 0 - 5C.W.H.
DATA REW s

mar—
(
(7)03 BODY SHOP (44)
W--10 x w-
ySHop ( -.
WELL
144 IN, -
JACK'S FAST �� • '�
t cQ
yr yr
v
1 t ( UAK
a e
* PUMP �
ISLAND
�w
1
( 70)�
Mw-
OLD
40
TANK
10 BASIN
: 0 go
FIGURE
CONCENTRATIONS
�dBWNDAJRY - AREY OIL
MASSY ARFA
Momm"m wa EARL, NC
() Q - 64
DATE

M-
MW-1240
(4400
DW-
#3 "MY SHOP V t:--
FAw-1i
1M40
�
4r r
a & w
ao FOOD WELL
014
c
;11
}{I Ntlslt p 3 NLEAK
w,
W 1
PUMP
MAND
1 f
adool oil OLD
to
P 0 00
LEGEND:119 SCALE (FEET)
u
CONCENTRATIONS
GRASSY AREA
+ ► 7 �P-RCPARM BY
N 0-- 4
DATE REW-va By Defta
.--�

.02
kO '4"
#3 BODY SHOP
N+ t0
Rt
wa
r
a
i3 _ 0.
UW—w
.
t�
JACKS EASTFOOD V&lL
(0.028
(0.64)
co
p4 4 L- LINELEM
tuo"Wxy los
0. *
W-
Y wa
PROPERTY 00UMARY
GRASSY AREA
)
MP
ISLAND
�r
OLD
TANK
�. w1 BASIN`
t90
uSCALE {
MW-7 IF FIGURE 11
CONCENTRATIONSEDB
EARL,
NC
PRE az NOµ
3-27-90J
MIJAM�FA

MW-6
MW—
t2
r t ( ?0-3�jwv SHW t
LW -tit t mw- a
wil 91000)
vw
Al-
rJACKS FAST
to) FOOD WELL co
(170
UNE
LEAK 40
+NA`t 1 Wv
W—
s
MP
�� i so
�r
<20
MW - W-14
t
tANK
-414 BASIN
00
L
2_
W
MOMTY L
MONTORM WU EARL, NC
(u9A) 50-88-564 C.W.H.
DATE REMM By Defta
-9

RW-6 r w "
1p? IREATUE10
VOELL
'S FAST
a
rFow, voru R
N�,
00voww
*Ay 196 LINE
LEAK
MP �
ISLAND
BASIS
SCALE (fUM
LEGEND:
FIGURE
N SLqVLY Mu RECOVERY WELL LOCATION
_.
L
EARL,
PRO CT0.�p
-C.W.H.
DABREVWM BY Doha
- 27-��
I

IOCAnON
FRW=
PORIM
µ 1 a 1
Am Oil 0=Pany
88
t
11
6." OD msA
Shelbyt
North CaMlina
DRnkmJ
RIG*. Mobile 57
140 2/19/90
IAND
OWNER:
HM=iCk
E�,,
.
I�
A
PI
u
M
'
.,
N
1,
;
S
(in)VNn'S
hNu
cdor _
4
NO leS to 221 because
a adjacent to -1
1
10
12
1
1
.
4
21.5rp
t micaceous
4
-/
mineralized
4
25-
10
26.5
26.5-
26
As above with borizcrtal
bwds of clay and mica
4
r thick
odo
vslight
at 29 feet
34
3
4
4
4
4

-Z��8Am
Oil C=Pwv
13
4
OM StCp 4L:::
METHOW6.25,11
Ww1by,
North 1 '
OS`
103 2; q
MM
C`
SURFACE
"
AN
ULT
N; A
O
OBSERVAnCN GENERA
"
0
LNM: PM odor
2
rLicao0ous silty a fill
silty C"a
Vllcw
4/5
4
4
mist"
8
3'Cw
c clayeySilt 1
4"
t
1
above
2,
4
la'
1 '
1
14
f
2/5
14
2
11
above20 As with tore resj&zj-.�
0
2 6
4
grains-1 o °
34
23.5
28
30
34
3
3
40
44
LEVEL46
DM
Tne
Am
GWL
a r-^

r
INSTALLATION :NIA
------
PROJECT, MONITORING LL
No' TOP OF RISER EL VA - 1. I
�w VATER-TIGHT CAP
FLUSH GRADE WELL CONSTRUCTION
DIAMETER TERIAL 11 s
TOTAL LENGTH
LENGTH AjD CLND flush
THICKNESS TWEE OF SEAL 9,.5 feet
DIAMETER, MATERIAL t JOINT TYPE
GP RISER PIPE flrIsh threaded
TYPE Or 34CKP'ILL AAWND RISER
THICKNESS & TYPE Or SEAL
L sr�tr�zt
DISTANCE OF rILTER SAND 00VE TOP 2.3 feet
Or SCREEN
TYPE' OF FILTER AROUND SCREEN
rid
MONITORING WELL MATERIAL Sth. 40 'PVC
mac,. sl t—t—e-
L3 SCREEN GAUGE OR SIZE OF OPENING C. 10 inch
{SLOT SIZE
es
IA TER & LENGTH SCREEN 8.96 feet
DEPTH TO THE BOTTOM DF MONITORING .77=l
WELL
DEPTH TO BOTTOM Or FILTER SAND
THICKNESS L TYPE Or SEAL, / a
IAMETCR OF SOREHOLE
l.f FT MihlT +ELL LATER LEVEL WASUREMENTS
IL't FT DATE TIME VATER LEVEL
L _ i . FT
L4 _23.27
INSTALLATION CPL E
TEw_UjZL94� (K> DEPTH XLOW TOP OF RISER pC
MEN Defta
A� �A k E = ;s

INSTALLATION FLUSH GRADE MONITORINGWELL
PROJECT, 50-66-564 MONITORING WELL
1 Aire oiI co
TOP OF RISER EL VATb " . S
nr-------------
VATER-TIGHT CAS
`LUSH GRADE WELL CONSTRUCTION
DIAmETER & MATERIAL it
TOTAL LENGTH
LENGTH ABOVE GROUND flush
THICKNCSS L TYPE Or SEAL 7.0 feet
VIAHETE , MATERIAL 16 JOINTOF TAPE
RISER PIPE. _ flush thr
TYPE Or SACKFILL AROUND RISER
THICKNESS L TYPE OF SEAL,
L
t n1t
DISTANCE O FILTER SANE ABOVE TOP 2.6 feet
OF SCREEN
TYPE OF FILTER AROUND SCREEN � e
r�
MON2WELL MATERIAL S h . 40 Pvc
LI m a CT one Ott'
SCREEN GAUGE OR SIZE OF OPENINGC.CIC inches
(SLOT SIZE
—DIAMETER 4, LENGTH OF SCREEN Z L 1-99 feet
DEPTH TO THE BOTTOM,Or MONITORING i �
WELL
DEPTH TO BOTTOM or FILTER SAND
25.0 fee ,
THICKNESS & TYPE OF SEAL
DIAMETER Or BOREHOLE
LI `T NONITORING FELL WATER LE WASLURRE E TS
1-CZ ET TE TIME .5 ET WATERLEVEL
E ZG1 FT
1
INSTALLATION COMPLCTED,
a
AEA. } r Lr
ME, , . z () DEPTH BELOW TOP Ear' RISER C
Wift.-mm"mam"Nam *#114 GY ;ll*l

a WATER TI 14T GAP
FLUSH GRADE VELL CONSTRUCTION
w«
DIAMETER & MATERIAL
* TOTAL LENGTH
see
LENGTH ABOVE GROUND
THICKNESS TYPE OF SEPAL
DIAMETER; MATERIAL & JOINT TYPE
OF RISER PIPE
a
P 2ACKrILL AROUND RISER
I
-_Ogg
FT
Lit FT
L$w 9.98 FT
L,4 : t 1 FT
INSTALLATION PLETTM
TTIM _ t
" Sch.40 PVC
THICKNESS & TYPE OF SEAL 1.8 feet
I T N`E OF FILTER SANE A E E TOP 1 e
OF' SCREEN
TYPE OF FILTER AROUNZ SCREEN fine silica
sand
MONITORING RING YELL MATERIAL
machine -slotted
SCAM GAUGE •;-tlZttit DPENNG
1� feet
VELL
DEPTH TO BOTTOM OF
PTA BELOW TOP OF MISER BOX

ATION OF FLUSH GRADEMONITORING WELL
.�.
PROJECT, AOil Eon n V, MONITORING WELL �
TEMP OF RISER ELEVATIDNi 103.
VIER CAP
FLUSH GRADE YELL CONSTRUCTION`
° DIAMETER t MATERIAL " steel
TOTAL LENGTH
M
LENGTH ABOVE GROUND--------------
�
THIS SS L TYPE Or SEAL n T � t
----------------
IIIAMETEk MATERIAL jOINT TYPE, '° #�
L F RISER PIPE
fla�s�r t}�re�
TYPE G ILL AROUND RISER t ent
THICKNESS & TYPE OF SEAL . G'
L4 nts llt
DISTANCE E LTER $AND APOvE TGp, 2.0'
OF SCREEN
�t TYPE Or FILTER AROUND
MGNITGRING WELL MATERIAL P4'
L
SCREEN" GAUGE DR SIZE OF OPENIN3
(SLOT SIE
DIAMETER to LENGTH ' SCREEN
DEPTH TO THE BOTTOM OF MONITORING
ELL
DEPTH TO BOTTCH OF FILTER S N 2
THICKNESS & TYPE OF SEAL none
DIAMETER OF BOREHOLE m2 5„
.y 3 FTiITGRNGiii,LL VA �SL�RE?GS
DATE TIME WATER LEVEL
IR10.0FT
L FT
J

INSTALLATION FLUSH GRADE, MONITORINGL
PR s
MONITORING Li KM� 1
C
NOR MCI. - TOP OF RISERELEVATION, —10
WATER-TIC04T CAP
FLUSH GRADE WELL CONSTRUCTION
TOTAL LENGTH ¢
LENGTH AjoVE GROUND --------------
I w
THICK SS TYPE OF SEAL t►et cement
Et,
IA"tEd MATERIAL i. JOINT E 21,
E RISER PIPE flush bread
TYPE OF' UC F"ILL AROUND RISER neat cement
R LRa
THICKNESS & TYPE OF SEAL 2.0' lbentonite
A
DISTANCE OF FILTER SAND G Top 2
or SCREEN
TYPE OF FILTER AROUND SCREEN 'ra fir,
M3NlITTGRING VELL MATER ` slotted PVC
L - SCREEN GAUGE F'
R' SIDE ` OPENING
I(SLOT SIZE
"W-4---tIAMETER L LENGTH OF SCREEN" 2"` 1 l
DEPTH TO THE SOTTOH OF MDNMRING 2L.
WELL
DEPTH TO SZTTOA OF FILTER SAND 23.5.
THICKNESS & TYPE OF SEAL none
IA TER Or 2DREHOLE
.2 PT WATER AS E EIS
1.# - FT TE' WATER LEVEL it
EIC -C PT
L4 23.5 FT
INSTALLATION L E D,
DATE JtI DEPTH EL W TOP' RISER RG

GRADE.INSTALLATION 13F FLUSH
MONITORING WELL
TOP DF RISER ELEVATMN,
'VATER-TIC CA
L ADS VELL CONSTRUCTION
DIAMETER L MATERIAL
TOTAL LENGTH
" LENGTH ABOVE GROUND
THICKNESS & TYPE OF SEAL
DIAKETER,,, MATERIAL, & JOINT TYPE
RISER PIPE
TYPE IAA ILL AROUND RISER
THICKNESS TYPE Or SEAL
-DISTANCE OF FILTER SANV AkA TOP
O
TYPE OF FILTER ARZ*Z iOdN
• MONITZRING VELL MATERIAL
SCREEN GAUGE OR =t OF bpt�N?G
(SLICT SIZE)
DIAMtTER & LENGTH Or SCREEN
kf
f9
f 1,,t
I ?s thread
neat cement
.t' bentonite
inn sand
DEPTH TO THE XOTTOM OF MoNITDRING.
''ELL
DEPTH TO NOTTOm OF FILTER SAND
THICKNESS` TYPE Or SEAL Hobe
."
. r
i,28.0 rT
RI .
L♦ - XT
W'11-
. . . . . . . . . . . . . . .
J
I

INSTALLATION OF FLUSH GRADEw MONITORING WELL
@ PROJECT, Are @ n MONITORING WELLNO,-
1JM Na -`
t- - TOR OF RISER ELEV*TION, 103.28
i�ATER-TIGHT GAIN
FLUSHADE WELL CONSTRUCTION
DIAMETER & MATERIAL steel
TOTAL LENGTH ail
LENGTH ASOVE GROUND«
THICKNESS & TYRE OF SEAL concrete
DIAMETER, MATERIAL & JOINT TYRE d b�ins
Or RISER FIRE @E @E
TYPE OF RACKFILL AROUND RISER PVC flush thread
.Dt', nt gTout
THICKNESS & TYPE OF SEAL ' bentonite
Leg _pellet
DISTANCE R FILTER E ASOVE TOP
OF SCREEN
TYPE OP FILTER; A+ROAN" SCREEN' _. in end
MONITORING WELL MATERIALMatt d t'
L SCREEN GAUGE DR SIZE OF OPENING
(SECT SIE>
ZIAMETER & LENGTH OF SCREENDEPTH TO THE J:TTOM OF MONITORING 45.3
1 . l
WELL
DEPTH TO IOTTOM OF FILTERSAND
THICKNESS & TYPE OF SEAL novae
DIAMETER OF LE it
■t
L t * FT
S * 3 . I T
L,,t w 45.3 FT
INSTALLATION COMPLVED,
TIME1 10
DEPTH
TOP Or RISER
A

1
thaw CNE ST.CP
_ raticn:
:k:'-',LATD-
ductivity
61#1 fist#ate ever ranch y as cissipatic (ft)
• Data fourte -
iiyzed by; Date: X,dJf
VARNOLES TO BE h`% "fit
teit Wer U *
2M7 ft
RN *
IL=ft
Lw *
214, ft
e z
7 f,
#fe # r#a '�s of Basin; Ut1n "l ity of satt aa:x ift C W-;t
r sity of s# *a. t*Z VI fss screen: strat:es water ted:ei * CBe as a deri#ai
'siP ntm tt#et#:ni #fter tat pirivte fro# lac«p/t pint t 1. 750 #in (any vai.:d t fro$ pats,
f I tq derived fro# best fyt line on to;(yP/t oiot Pyt s 1. MMU7 regression value at tole t tatove
Y # t ceri ed free dts. f t ii*e of io��y� t pion T, S.* #1n
Lod=y" # t fros best fit lie of ig,,y�j; o:ot 7 — 28. OW�1n
saJ*a e» th;C4- ss n we,*. J.
e" frtivt screen len tr We e; ua:
zerove fro td:eeutas-z �
curve tat-Cr Lt/L..*
ais? USec
as dar-;�ejftfuw ra a ssi p n Anilysis
e0.r;;t1#e use't as 1noe;encert varlad.e for reesson asratyss
#e
Depth e—
Chaqe fro# Re ressio� ,
low Mptft)
static(y) io (y) .tuts(;y
i�M,
21.87
.ff ERR f. Mia ii
e 7 W'
zz:7tJ.
i r 7
'Luzf
ZZ.1.7
i.!'f 0.1,MS2 f, i r riSu:4
ff
`.i:�
i&
E i w,
f. S: . 6777U7 —f. �
'nc_
est
ou e", a.
#nd R. C.::i 7.;w 4 Z:i; Test for ben l ln
.egression Output:
Constant.��E.
Etd Err of y Es
K Squared fo51 r -.
No, of dse v#«.ony
Degrees of Frttdos 5
1 o fficiertts . K `7
Sid Err V Eoef. 0. i
10,yo) * 2. Nizf 10ty3 intercept at t-
Yo 2. 25 ft t as uiatat Y it tzk
Ye= 1. fft (a?cuate yattill t;
LeAw EI.AQ, di#ensso ie.s
E 1.73 dimsion.e5s
m e/Aw) - M5 dilensicnim
fire * f. ?4 ft,
EeE ftysew
7 f /cr
*
E. E-Cft/day
*
8, 97.E c^#,+en
*
MU-07 atsec
*
7.71Vday

FYdraulic Cond4clivitty of '."imfirtt k-jifers Wjtn ucjtttky
or Fully Penetrating Wells, Water Ptictirce, gt5fireft, V.
Q3-4&
lower, K, 1985, The buwer and Riot Slug lest - pm Update,
&'Ound"ter, Vol. Z71 No. 31 pp.
109*rl Ki 1989, CISONOF: The louwtr and Rice Slu; Test -
Update, Sroundo.;,ttr, Vol. V, No. p.

for filly Whits; ts; falls
~a - Data soy t
Collcttd by: ielI?
ArNaiytd by: JCM Dato:t�'�
4
Nr� s
r
"s °`Yd MAC MF5b.sM �W a
A „ S o p l
.Sd Itryyd F�FWa..
gyp pfw
'f.�rm:�a +aa JM MF. d�4d .Y 5�ki�3d�v
y
M#m .,q
#ff rwo racial asstanct dvtr wicn y as cassao tgc (ft)
� �
a 3 �.
r d;Us of aso (ft)
of#c i" rh"$ of casan Ami truss* Y sac Pak
s a
RC x
t ft
c f*
or s#ity of sandca:m (=Z on."t:s screen st°~at:ts a.tN, to pe
a os.
stir .� 3 tee _ :s tt 0
Nyt a.n tart' a::t : frog
dt ato ,ro$ ots. ;#t lant cr :o� � fia-
y _trffiwtc frog bast At lot of ln""t M.c
T� �&
cn
Lq tt') 11 frog otst tat :he of 0;4"t :ffi#:t
TE
Zz. INV #1
satorattd W kr ss in weW it)
tff'fCiaw# scrttn ltr t� (fti hart aQi: to Lw)
derived fro# UI-vt #a¢ LlL s
bt;tda#snsao^.
'nnan .## Used as indt tndant mriabit for rtrtssior analysis
#tsdan to#t U"d as snd"tr O seAW for rtrtssaor ana*y .s
&#Eq t be-harp frot
etaNc
qq
®ax.t dY `4�"rttd taN$N.� N4 F"a +F}
y� lts �) ka#arsr��4o
� A�
ons4a4rt
5 c. � P
r me .
,
17.15 . ERR AMR. °
Ott r;" of Y Est.. A%e 25
Stared
�•
tt +w rt.wP.x
:�m iws$.+g�. lk'C�mw � +'"* T L. 4'..`,
IN 27E7� 2., Zw:'
a 7Nl SEE
fgg pp
a
.#_1�, ��.1E
qrssofrr
j
kW Z�.. lie ?w,. a
. &Z z 1E.. r IN yai jy
"a, 0M
p sfr
1767
b r a
Ix4 ra.
;prr of y^.
Sit
.
M WED
AR:PKZm i:.
Iq ch) =
d . w cos ) ;ate*:fit at t= tll
yet
aa.5 ft it ',.If -,
Lek*
dk##nsucast
law& da#ttsaon.'tss
ln(tl ) =
L'Udt#ansatn,tss
HYDK. llpf XTUIT TTS;
„p
y
. - Woe
j
F EM ipt¢`�#
K -
L NIEV Shay

a
tnct : Sauxtr, H. and Raft, R. C. 194, , Slug Test for Cetert ni g
hydrauliC Conductivity of Unconfined uattrs With Cos Ines°
or Fully lottetratiq Utlls, Wttr Atsolirtts Restarrh, r. 13
Bourg, K, 1585, Tht goawer end Race Slug Test - An Update,
rer d -ttr, Vol. 27, ha. 3, pp. U4-3 .-
H, 1189, Cl `-.'SS1C OF: The Souotr and Rice Slq Test
An tee, reurd -ttr, Vol. Z7, k. to, p. 711W.

IT
t
? D°"±d err
For wily PenttratInt Wt! s
Data - to Board r.
M. Eollvtft by: ;,1. J.P.
NESTOR
attw 12"zEja
#4 alyyttd by: Datt. tB„tI EE'
b
r rlE ArTI# :.:E E '° 'T ' E'4'%I T ; V4RJ*L:S TO E l L° d
C:ncdct:vit� ;ft/ain: Stit.c Water Level = 22.4; ft
affective radial dis an t o tr when Y is oiss.oated (ft Kw z L Z ft
rad:ut cf dveholt (ft) w �, ft
reds us f cis an tfz Lt =. EE ft
efrtive radi°js of cas * in vs c
Pcrts:ty of sard»acx (=t un:tss sc-tt": strad.ts *a #*, tadlt � .� s a dtdisa$
<atrtnt l
.l:t t: i ' " i= ct*.M£ "`Ct .t .Ct tz
L KV 1i (any Y .lam t f" t t ;
t i m frog dtst fit line or lc'dyd!t plot yt 9 4 W217i rtVrtss.cn vaffiut at teat da::wt
f E t dfrcyte fr�a bes, fit line of lc i )fit -°
t = Lc ;yl # t frog best fit lint of to :y,'/ l:t T - 4. We Cn
satcratt'. ttsntss in weir ditt
tfftct.vt sate- ltn th (ft, here taual tc Lw.
derived frog curve aatcn LfIL srt^siorsies.
dt insrin; tilt used is snceoendent tar:at.t for rtrtssicn analysis
vdinq tilt used as .nnde t^dent varlault for reressior analysis
`lite Depth be- ha- e Eros pt:rtsS:Cn
low (ft) st t'w(yy to;(y°)
R
R
Ktrtssion Output.
onn tvt
Etd E.-r, e Y Est.E �yr
K Squrti., e
o. of cs,t-vatitns E
De rets of Frtrdox l
I ECt`.C.t4t(5)Ei
td r- of '.were
VEI:-EE.
In (Yod .Z!A!V, lo,(y) intercept at t-
t -- C 4l ft (Calc late y it tea t)
LtAw = E..EE
l.E diatnionitss
n( a/Rw) L 4z diit siodles
ct> C ft
WDRUPILIC aKXCTIVITY
1. 1E ft/stc.
K
7.' -N fttein
K w
1.9 ftdda
w
EE ca/stc
.EI-6 itlifc

RL,
Pare
rr*des: lvuwer, H. Ind RiceR. C, 1 , A Slay Test for tt rei*ir
14ydri4ir Conductivity of Unconfined Aquifers With Cos l tel
or Fully Pt ttratin Wells, aster Rtso4rtts Resesr h, r l
pp. 4 -
uw r, H., ISES, Tht h4 tr and Rice Rl Trst - An :ex
R :utdw1ter' Vol. 27, No. P;' R*-Zzi.
� saver, K,, M5, DID ° r. OF: Tnt auger Inc Rice Sluff Test
An Update, r 5 41
gun r
d , ate �'��. Ri �, � �,:.
s w s

TMp Industrial & Envirorrr enta l Analysts, Inc.
FAX (tip
XjLrohs 1, 19go
t
i
Marilyn Gauthier
Delta Xnviromrantal convultente, Inca
7401 C&rzej Ixecutive park, Suite 206
Charlotte, Ne 28226
Reference ItA Report No.: SS4971
rd9 a ID
5 -98 5 4
i
Deer RE. amithier,
Tr&nsmitt*d berewith are the results of
to our laboratory.
&Iysee on eight * 1 yt
i '
±'lease see to Onclo*ed reports for your
reulte.
Very truly yours,
INDUSTRIAL UVIAXXLySTS, INC.
r. Mitchell
Vlraootor, Technical Support Services
et.e Certification..
- #40210 New Jerrre - #67719
South Carolina - #99 1
or° - #olfi Te eaa - # 0 96
North CAwrolLnx - #37720
ears 41-ISS Virginia, - #00179
#84

T
sample # Client ID
Xogults Azalysod
2 1 h lora4 ar' id 9 C 3/13/9
xW-11 03/13/90
Xthylene D4.bromide0.44 Uq/L 03/14/9 4 -1 l*zo Dibromide+t .11 aq/L 1/14 9
6 DW-2 ] thYl .. L d
ill . Cliff u;/L 1/14/9
b l*n ido 0...970 uq/L 03/14/9
h if a DIbromid# 0.0 /L 03/14/9

66® * Coy WWU
is
000'r NOT0 ISM= TAK-11046
:SPUD MOTOPPY
00019S 000Tits cg
CiS' C ocor it s
coot
Mv 0001' �
lot 000tr i
019C 000Tr �
{ 0 (" /60
UMMU0
nUOTIVOwna
VMX MOOMMPI
saNnonoo tog COSIXX vs
O
y

tog mloAt
Oct OT O0 nS
:spunod=o ZVUOT4TPPV
t I T OT 0u*lmTCz
t Olt *U*2 s Ate
lot OIC
1109 i c
8ta�
t 60 (1/154)
4*jj **q
wn
6- ,X *
i'
somodxw
S C09zzR iid
SOZZYMOVY

i
MI
TICS
A
601 COMPOVNDs
$ l* Ruzbort 6$4-971-3
SAZPI*Identification: -gt
Data Analyzed; 3 09 9
s Sandricks
Qu"titationSint
Number Compound
Limit
g L
ncon ration
ug/L )
1. ere
10
€sly
Chlorobontent
10
IQL
3 1,2-Di hl r be sen
10
SQL
4 1,3i h r nz*n
10
SOL
1,4-Dichlorob*nxene
10
Z ane (Total)
10
214
Additional %a ds
tt -butYl methyl other
10
17
co=tnts:
nL Relow Qu&ntitiltion Limit
Qu&nt teti n limit elevated due
to * ter d,ii tion prior to az&lygis.
Sa=Ple diluted due, to high cotc*ntr&tion of target compouzda prosent.
ftxx 602 Rev. DSOS89

0 Cos wdu
Olt -*0940
O*Olt
sscs
M+� Oc�*n Z
i Olt 9
Olt lift
Oltax t
lift Olt r
lift 0 *'ta
A.
" (15
� cx T
'tof CORxu w
solzYMM

Ms
XPf► NXTROD 60
S l* Numbers 4- I
k
# l* Idwntific6tiout D
ti atie ss Result Number Compound Limit '
acwtticr
tug/L
Ca*name 2
3 1,2-Dichlorobozzone 2
4, , ichlczcc uz ne
5
L
S
zzwn
Additional w nd#
tort -Butyl wethyj other 2
eats z
1010w QuAntit&tion Limit
ouantitati limit *I* at*d due to SALmPlO dilution prior to analysis.
le diluted dueto high contontration of target Compounds psrt ezzt.
YOM 6 V. osose

P'A"XATICS
SPA NZTHOD 602
$ Is Puzbort $54 971
XAMP1* TdOntiti Ati n, ew 1;
a
Data Analysodt 03/09/90 by, Remdricks
qu*ntitation Results
ccapound Limit Concentration
ui;/L )
1 Srse 1.0 i
1 1,2-Dicblorobanzone 1.0 SOL
5 2,4-Dichlorobiottene 1.0 SOL
6 by nz*ne 1.0 SOL
7 Toluene 1.0 SOL
Additional wads
to ` -But l M*thyl other 1.0 SQL
cocm*nts:
Q - below titatio Limit

ARCWATICS
r XPA XZTHOD 801
XU:pl* re5 4-971-7
samplie Idanti lcationt -1Lim;
ttatlr�d ulta
It Concentration
1 Sansone 54
Chlcrc ent,ena 5 SQL
1 1,2-Dichlcrobonzene- 5 SOL
4 1,I-D c lcrc nsone 5 XQL
1,4-Dichlarc nran+ $ nL
Ith n.tekn,
Z ltenas (Total) 5; 1,10
Additional unda
9 t*e -Butyl mathyl other 31
Coccments:
SQL wr below Qu&ztitation Limit
Quaztltaticn limit Oloatad duet Sample dilution prior to azalylvis.
Sample diluted duce to Haigh Concentration of target Compouzda present
602 Rev. OS e

a MI
SPA XZTHOD 602 5
& Pl IdOntiii tIon: $fir-
titanResults
Limit Concentration
Number and (Uq L) (ug
1 antan 1.0 2
1 Chlorobetzene 1.0 SOL
3 1,2:_Di ltens 1.0 SQL
4 1,3-DiOblorobentone 1.0 SOL
1,4Di l mans 1.0 XL
a X lrnaa Tots 1.0 SQL
try -Rut I mothyl other 1.0 l
Coccent
SO Below Quantitation Limit
TORM 602 Nov. 0soseg-

Inst a1 revise [ Analysts, Inc.---
s.t 1,
�
Vobruary 5, 199
Marilynautr
Delta Znvironmental consultants, Inc.
7401 Carmel Ixecutive Park, Suite 206
Charlotte, NC 29226
Reference TEA Aeport No.: SS4886
Project D: 5 88 9 4
Dear ire. Gauthier,
Transmitted herewith ara the results of &nalygeg on three samples itt+e
to our laboratory on January 20, 1990.
Please See the enclosed reports for your results.
Very truly yours,
INDUSTRIAL IRO 9, INC.
ri
Linda F. Mitchell
Xenager, Technical Support Group
State C*rtificationi
Alabama - #40210 New Jersey #67719 South CAro1iAA - #99 1
Zansa* - #Z-168 Virgina, 179

PUROEASU AROMXTICS
A XXTHOD 61 COMMMS
IZA Sample Number: 554-886-3
Sample Identification: XW-8
Otte Analyzedt 01/ 9/9 by: Cox
Quantitation, Results-
Limit Concentration,
Number Compound ,;/L u9/L
Benzene 1.
1,2-Dichlorobantene 1.0 B L
1,3-Dichlorobenzene 1.0 BQL,
5 LPthylbenzone 1.0 SQL
7 Toluene 1.
Additional Compounds:
-Butyl methyl ether 1.0 SOL
10 Diis+rl ether 1.0 SQL
Comments:
L Below Quantitation Limit
FORM 602 Rev. 050589

lot T 29944 TA44am Txil-
« to TV
0SS 000T ouonTol
9le OQt
1109 T crT�r'lot T
olt rq ,
TOOOT tTF
016T 000t T
("has
UoT4v u6o
T sall UOT4v4T4uvrq5
950 tSS std=ws V21
samnodxw zog coa
SOIXYWOW

PURGZhBLZ AROMATICS
ZA METHOD 62
ZZA Sample Number., $ 4 886 1
sample Identification: _1
at• tl d: 01/28/90 : Cox
Qu4ttitation Results
LimitNumber Compound n entr ti t
l benzene 10 2
00
2 Chlorobentene 10 BQL
1, 2=i)i Moro entene 10 ROL
1,3-Dichlorobentene 10 DQL
6 1,4-Dichlorobenzene 10 SOL
6 Sthylbezzone 10 22
Toluene 10 23
iylonee (Total) 10 26
AdditionalCompounds: 10
to Butyl methyl ether 10 BQL
10 Diisopropyl other 1
Co�nments:
below Quantitation Limit
Qu&zt.ite iOn limit elevated ate due to sample dilution ;prior to analysis.
Sample diluted clue to high concottration of target compounds present.
602 Rev. OsoSeq

RESULTSM dlk 0
IZA Prof 554-88
Clint N' Delta U ntal consultants, Inc
Date
Sample # Client ID Parameter Usults Analyzed
maw a* wwwa am m :s waaw wwwwwam am
1 xW-10 Lead - Dissolve - / 1/ /
90
3 -8 Lead Dissolved <0.0 m /t Ql/ 3/
90
1 xW-10 Zthyle" Dibromide 0.41 u /L 02/01/90
3_g Xthylene Dibromide 0.22 use % / 1/

Delta
Environmental
consultants, Inc.
74t Camiet Exec. park, Svtte
hadtte, NC 29226
704/541-9890
7 1
March 26, 1990
Jaynes 'Waste Oil
P,t x l
Charlotte, North Carolina 28225
Attention rd Jack Holder
Subject-, Wasto Oil Disposal
Arey 00 Company
Shelby, forth Carolina
Delta No, -564
Dear Mr. older
e purpose of this letter is to Confirm hauling arra erTIents (Or Waste Oil at the aho�e
referenced site. This letter outlines the details Of this proposed arrangement,
The Site is the Exxon station located h Highway 180 just north ofEarl, North Carolina
as sho at on the enclosed map;
e waste oil to be hauled will consist Of approximately 400 gallons per month of
Urtleaded gasoline locatedlocaied in the Separator tank on site, Delta requests that your
CoMpany make arrangements to pump the gasoline &O m the separator tart: and haul
it a%; y' fttr OMsitc treatment or disposal onct per month, Delta ill inform you on the
to the hauling should begin,
Pursuant to our telephone conversation on March 26,1990, Delta agrees to pay $400.00
r appro)dmately 400 gallons pumped and hauled from the site each month,
For our records, we will also r uire ,# Certificate of Proper Disposal for each occasjon
the gasoline is hauled off -site,
Prgcu0at SO4abons to ErMrontriorut rams

a
. Jack fi tdcr
Mamb , 1990
Pa
if have any questions,Or tequire additional information concerning this
arrangement, please feel free tact me at [phone],
Sincerely,
DELTA ENVIRONN(ENrAL ODNSULTANTS, INC
thl i'fct cr
Civil EngineeT
KEPAms
Enclosure
i Ms, Marilyn Gauthier, Delta Environmental Consultants, Inc.
Mr. Richard A. Workentine, Delta Environmental Consultants, Inc.

i
a
* ,
*
L `*
** r
*
�Y
p
e �
* e
8
Olt
4.
,
' 4 °
" .
`°�
y
I
xk
ALE 1,24000
t t rUl
CONTOURINTERVAL FEET
ISLACKSBURO NORTH, N. c' ,.
10POGRAFM LOCATION MAP
14U
tea' S s It Ott-99WES V&42 OW STOP #4
EAFL, NC
we TN
RAD"A.L OAT a k fia+
1 - gyp. fi.,

aOa ORS "�vAYOO� 4 M`1'�bMxM�'�
tpt rt zone it Isr y art tstitated u=*rg tf'fst °pions.
is x O Zpi 7 i or Is t M29 T
Ilhert. Is i Stagnation point d wngradzent of the recovery well
# tOt ps illp -Tan*- tsaY°'
iNeert. y idtt o apturf zone at a given angle
Sirlplified for Ingles at SO, crossgtadivt of the 'etoveTy veil
and GAR upgradien: of the r cowj well:
Y31, 7 .;11.57
where. 0= plow fgpr
pi . Buis
T � Trensess:ult� cg��af
i Aa, fsyd=acli; sratser
ra cg ssisitt ;T) is calculate. *of
tle*ived frog slu; test calc latroct using the following ealtulatio
=It
Where, Hydraulic ondu.tiw ty lgp«!rft*2l
g *uifer Thickness {ft)
stisited to be 2x saturated thickness in well s
Values I r 1.77 pd="ft*2
g 1 t etr�°vet t- 'k;xe��
a
T 17,7
g�4
0 (flpw) is sdlculat d fro$ the e pp rival tpvat.^ c
01s Tf2g or ; t T O
1the,e$ s in =e.'nvv ^ we:.
Tw
1 r , € p,�/ f t
Values: s it
0 d wd i pa r; 1 &rJlldaf.„
ViOi ttt above aticulate. kilaief 15, Y's , a„t Y.';�' are
Values. 0 38.222
T 17.7
t 0.05
Is 7 it
y9t it ft:
yl0i 22 ft '
tefertnces for calculations
Ground -hater Hydro'sogf, G-Ovdwater ine Wit,
Hcgorter ire Gurada Driscoll, 1Sg , p P

pr 4ett® ARZY oil
�oatioo,EaRl
+A al ed;MA9Checked:
Dale: 031301SO Date:
p*
first, tst:aate the ratuus of inf ue*ce in; ;his equation:
<Ro ttF=hli,ak1'd«
where: Rp t rid;US of influence(ft)l
Z SitJTIIUt ViltibeSS Of aquifer penetrated by We:a.(tt)t
bw z sat rated thickness of aquifer w4te put; control is set(ft)a
Ic : hydraulic tonductultytgpdit"«
a
eto t, tstlzatf the flow rate using th;s equati n-
s � �tpiaia����hux�l�InCoIR�
white: I t floe rate"W31tayl
pi LICE,
k = hydraulir tondurtirityttt/days;
z satutated thickness Of aquafer penetrated by eS W V;
6u : satutatet thftkness of aquifer r�ere puap tonttol is setlftll
Ro racius of influe,rce(41) - froa th first quatirn;
RV -atuus t' re ovvy'
DATA:
urn nA7El E = 6.19 ft.Vel
or as al!eiY
R = f+ tr
{
Rc,,
Ru _ ,a6El. tt
Tfees calculations are desctibe: and Repa L and ufsr r., October M."
leachate Nuts nanagesent
U" S. Environsvti; rctec u&n
94�t}r/C""'EtC)�x SSE pp,

i
CAPTURE ZONE CAICI.IATIC o
DELTA PROJECT xca 0-oo•54
ptare eon# at Is, T are estisated usin these equations.
Rs*21pifitorIs4 S.ITi
Where*. Is Rta nation ��int down r n
R R adze t of the recovery e..
T to!'4i T illpi -Tan*`ll y?1
T _ Width of capture tone at a peen angle
eplified for angles at 50, rrostgradze t of the recovery ue:
And loot eppradient of the recovery Well:
T90 012pi T il(pillool901, z cals,76 T ill.w
Tloo 9!4., T iIipillo(1)E80 - (CJ6,2o T i)3. c
#here... 0 = Flow fps'
pi = 2.1
T Trvse.seimlty Igpd ft
i ydraul;c o'radient
Trarrpeissia ty (T) is calculated fro* sydrsu% t tondurtivijy IT)
derived fro# sDag test calculations using the following calculatro
Tai
'er:, k _ ydrau:.: onductirtt.ppdr�ft"
9stiemted to to 21 satura>e thltkness :n well
Values:: lz 15 "
e o It 5alviteM thickness 24
T 724w ;fpt!Ix
R Iflo i as alculited frog t4 e p rtcal equatldny
9/ T12o o or 2 - T s/200,
Pere; tiid wn .'n, recovvo veil Ifi
Tn, �r r
Values., s I° ft
R t 3.672 goo
t 5222. got rope z 141v einldiv)
With ►e above caleuilated walurs Is, y o, and TI8are ce:cc.atedn
Values; _2l?3mo
T = 734.4
i
Is *,
22 f t
To :6 1q
TIP ..

Loco tiCO.EARL NE
Allyled:NAEChetkedt
Data: 0313 150 Date:
first; tst44to the radius 01 :nfluflce us.n; t;. s equation.
Ro t "a(S-hv)t a w)* .
0fre} Ro rad:rrt of frflutntelf„ l
saturated t.nttknes: of aquifer penefrate: by el:(ft,;
SW saturated Va'Et ness of aqusfer where Auap control is W fft)l;
t hydraulic oonay.ti ifyfApd"rft"3;a
DATA; C9'lPA"CC Ro = 6%41! It
hw 1.G ft
Wvot'. d, ep t.a�.a.rte� !d$ �.#f. lorate
y xy Us
iR .S' a;uy tion:
where: 0 flow 1te(ft''31daf)
pi 1106;
* hydraulic ondatt. stytftldatl4
saturated thickness of aqu.fe, penetrate4 bt Vellftll
hu z saturated thickness of aquifer where burp control is set(ft)l
PC : r d.u= of tnfl;uecce;f) frt'e tt;e first egat.o*,°
AV f rad.us of re;ouer) DATA. _, 1,
k 3.0U+00 fvda4 or 414plltiy
3" ft .�
oillsin
by - 1C00 ft
PC RI.4C f
RW ff
These ta'>ulat;ors are des»*abed in: Repa,- w and rufs, C., Dctoder 1995E
twl'ate Plume �vapeaerrt
U� S. rote.taor
Agency,

Itlere ces for calculations:
r ndw i r ydra10 Y fruund iter and Mulls
Wotter and SuAidl Drim,11, 19SE, p 1021
g

BASM
I. The vacuum blower for the soil vapor extraction system will produce an average of 50 cubic feet
per minute (CFM) of exhaust air during normal operation.
2. The system will operate on a cyclic schedule based on decreased concentrations of target
compounds in the exhaust air samples.
3. During the *on* cycles, the system will operate an average of 23 hours per day, During the
remaining hour, any condensate collected in the coalescing filter will drain to the ground water
treatment system, *Ofr cycles will average, 7 days in length.
ASSUMMONS:
L The concentrations of target compounds in the exhaust air samples will steadily decrease over time
due to the rate of vapor extraction exceeding the rate of volatization (diffusion) in the soils. Basis
for assumption:
information gathered at other Delta projects;
studies conducted at Twin Cities Army Ammunition Plant (Minnesota).
2. Initial concentrations of BTEX (benzene toluene ethvlbenzene and total xylenes� corn orents in
W 1 11
the exhaust stack emissions will be equivalent to those measured at a Pennsylvania project which
has a similar spill history. (i,e. 2200 gallons regular -unleaded gasoline leaked, soils were saturated
with product to depth of water table in Pennsylvania)
Average Initial BTEX Concentrations at Pennsylvania Project
RESOURCE DATA.
Parameter
Benzene
Toluene
Ethylbenzenc
Total Xylenes
Parameter gacentrations (ppmv)
Benzene 422
Toluene 32,6
Etbylben2,xne 12
Total Xylenes 55a0
Molecular Weights*
78A2
92-15
106.17
106.17
I gram -mole of perfect gas occupies 22,4 liters at O-C and 760 turn Hg**. Temperature correction
changes to I g-molP.4-45 1.
(REF: CRC Handbook of Chemistry and Physics, 63rd Ed.)
(REF: AICHE Pocket Handbook, 1985,)

BENZENE
--A2.2 Ft3Benzene 7812Benzene -mol Benzene 28. 2 I Benzene
1 x 100 ftl Air & Benzene 1 -anal Benzene 24,45 1 Benzene 1 ft' Ben?ene
3.82 at IQ3 nzene *50 W Air & Benzene I Ib Benzene * ruin hours
1 ft' Air & Benzene I rain. 454 8 Benzene 1 hour 1 day
,58 lbs./dad. Benzene (during initial pumping
Time weighted t
h average e '" en«cetatrattrsn based
8 {'� on attaches graphs:
Benzene concentration = 10.3 ppmv
19.3 ppmv =_ 0.58 f1,244 = a
42.2 ppanv 0.58 lbslda
0.14 i s/dais Benzene `
2. Toluene * 2.15 1 * 28.32 1 60 23 - 0.52 lbs/day Toluene
1: x 106 1 24.45 1 1 454 1 1 (initially)
0.52 * 0.244** = 013 lbs,/day Toluene A
ETHYLBENZENE:
3.2 Ethvlbenzene * 1Q.12 * 1 * 28.32 * 50 60 * 3 = 0.06 lbs/day Ethylbenzene
1 x 10* 1 2 .45 1 1 454 1 1 (initially)
0. * 0. 44** 1.5'x ltli lbs/day Ethylbenzene A
55.0 Xylenes * 10617 1 * 2,832 * 50 *' I * 60 3 = 1.03 lbs/day Xylenes (initially)
IV 1 24.45 1 1 454 1 1
1.0 * U44** = 0.25lbs/day Xylenes
* - ratio to TWA concentrationslinit al concentration assumed equal for all BTEX compounds.

1 Cif
EFFECTS ON BENZENE CONCENTRA11ONS
1L VAPOR EXTRACTION EMISSIONS CAID E
Y CYCLING 'VACUUM BLOWER
(BENZENE CONCENTRAT10N VS. TIME)
00
Q.
in Lo
t 12 16 20 24
TIME
EXHAUST STACK EMISSIONSCONCENTRATIONS
FROM III VAPOR EXTRACTION

100-
z
EFFECTS ON BENZENE CONCENTRATIONS IN
75 SOIL VAPOR EXTRACTION EMISSIONS CAUSED
> BY CYCLING VACUUM BLOWER.
(n
< (BENZENE CONCENTRA71ON M TIME)
LIJ
-2 AREA CALCULATED USING TRAPEZOID RULE
z in (PPMV VS. MONTHS)
o ul
f= CL 50-1 <
z
W 25-
to
m ul
0 4 12 ie 20 24
TIMIE (MON714S)
'EXHAUST STACK EMISSIONSfONCENTRATIONS
FROM SOIL VAPOR EXTRACTION SYSTEM
TOTAL AREA - 247�25
TIME -WEIGHTED AVERAGE BENZENE
CONCENTRA11ON - 10.3 PPMV
Delta
ACmsuftonta, Inc.

INPUT DATA
PROJECT I.D.&
I T
WIN WIM-}
WT DEPTIO }
ARRIVAL RATE3t.
TIME END INFILTRATI.ON 1000
TRANSAISSIVI-vLE } .01
MAX XLOWABLE DEPTH 36
# EEULTE
T IAV I y T h-
1. N 8. QV 0. & 24.58 3.14 E3.14'
. N 4. to 0. 0 E6.06 9.E3 E9.EI
lee. N 0. 1. N E9.39 11.55 31. �.
0. N fLN 29.70 IE.10 3E.10
. N I. N 1. N 25, 142.37 32.37"
1. ee 3. .5. .5"°'r 1.36 E136
. 3. w 25. K E6.43 6.36 26.36
1 . u 3. 9.65 a. 65
3. ft 25. 00 a.11 11.07 31.07
3.W 25. M 2S.63 11.57 31.97
1.00 13. N 35. N 22.65 0.06 20.08
. 00 13.0 35. N E4. E6 3.66 E3.66
100,00 13. N 35. 00, E7.E5 7.E1 E7.E1
. N 13. N 35. U EE.46 9.94 E9.54
13. ft 35. N Z9.36 11. i1 31. IS
1. N 28.0 U. . 80 0.
2E. N U. N E3.70 1.60 E1.60
IN. N M . M 25.76 119 n.19
. N EE. N U. N E7, E5 7.60 E7. E0
ft V. N M7 10.45 X 5
:: T E IMPERCAELE LAYER EXCEEDED

m�
1. D. WSS-564
. v
iN WIDTF2
w
71PE END 1L; 7'TN IOC
-1
PCRM:ly}
AVE 3 1Laf 1.1
TRMS11SENiTy ", - } t
XDEPTH
Sa'S
T: Y T
1. to !#3.N 1 r., W, 22. R 4.
. n 143. W 1. N 22. B0 S. ". 22. 31
IX. X . N 125. N 23.2,. 1.72 22.72`
. N 193. W 12S. N 24.14 2.35 22.35
1. N 153.: 1 .
21.00 153. Oe 175.00 . S.
. N 153. N 175. C 15 2t.15
. N 153.90 175.0 33.36 4.41 22.99
. N„ 151 N Jr., N 24.61 3.,17 23.17
1.00 M. 0 225. W 22,8Z. W,
. N M. W 225. N
V
1 . N M. R Ento1.63 20.02
. N 293.2.. at 23.01 9.37 22.37
. ". N M. IN 33.5 2-82 2 2, Z3

MuUND"'ING AT AREY OIL
Qw,5 GPM 50 X 6 TRENCH
14 MOUND HEIGHT (FT)
0
0 50 100 150 200 250 300 950
DISTANCE (FT) FROM CENTER AT 136 DEGREES