NCG510284_Regional Office Historical File Pre 2018 (2)

CDENR
North Carolina Department of Environment and Natura
l Resources
Division of Water Quality
Michael F. Easley, Governor AZ cretary
-AIn W. ttlinl,R ctr
May 5, 2006
MAY
Ms. Nicole Cowand
ENSR Consulting and Engineering, Inc.
1226 Progressive Drive, Suite 102
Chesapeake, VA 23230
Subject: Rescission of NCG510284
Former 7-Eleven #21455 site
Mecklenburg County
Dear Ms. Coand:
Division staff has confirmed that the subject Certificate of Coverage [issued under NPDES
General Permit NCG510000] is no longer required. Therefore, in accordance with your request,
CoC NCG510284 is rescinded, effective immediately.
If in the future 7-Eleven wishes to discharge wastewater to the State's surface waters, they must
first apply for and receive a new NPDES'permit. Discharge of wastewater without a valid
DES permit will subject the responsible party to a civil penalty of up to $25,000'per day.
If you have questions about this matter, please contact Charles Weaver of my staff at the
telephone number or address listed below,
Sincerely,
,an W. Y1.liek
cc: Central Files
DES PerNmit file
Fran McPherson, DWQ Budget office
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 011e
12 North Salisbury Street, Raleigh, North Carolina 27604 North Coma
Internet; h2o.enr.state,nc.us
Phone: [phone], extension 511 f FAX [phone] Natzarally
charles.weavera nemail,net
An Equal Opportunity/Affirmative Action Employer — % Recycled/101/o Post Consumer Paper

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G, Ross, Jr., Secretary
Alan W. Klimek, P.., Director
February 10, 2006
Garry Blair
7-Eleven, Inc.
2711 North Haskell
Dallas, TX 75204 ;
Subject: NPDES Permit NCG510000 renewal
Certificate of Coverage (CoC)''NCG510284
former Store 2155 remediation
Mecklenburg County
Dear Permittee:
The facility listed above is covered under NPDES permit NCG510000 for discharge of remediated
groundwater. NCG510000 expires on September 30, 2006. Federal (40 CFR 122.41) and. North Carolina (15A
NCAC 2H.0105(e)) regulations require that permit renewal applications must be filed at least 180 clays prior
to expiration of the current permit. If you have already mailed your renewal request, you may
disregard this notice.
To satisfy this requirement, the Division must receive your renewal request postmarked no later than
April 3200. Failure to request renewal by this date may result in a civil assessment of at least $500.00.
Larger penalties may assessed depending upon the delinquency of the request.
If any discharge from the remediation system will occur after September 30, 2006, your CoC must be
renewed. Discharge of wastewater without a valid permit would violate North Carolina General Statute 1 -
215.1; unpermitted discharges of wastewater may be assessed civil penalties of up to $2 ,000 per day.
If you have halted remediation activity due to lack of trust fund money, but your site ranking from the
Aquifer Protection Section requires future remediation & discharge, your CoC must be renewed.
If all discharge has ceased ;at your facility and you wish to rescind this CoC [or if you have other
questions], contact me at the telephone number or e-mail address listed below.
Sincerely,
Charles H. Weaver, Jr.
NDES Unit
l
cc Central Files
woomwommowsommmwdmwww
NP17ES File
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Une
512 North Salisbury Street, Raleigh, North Carolina 27604 N6fthCarohna
Phone: [phone], extension 5111 FAX [phone] I [e-mail] Natarally
An Equal CpportunitylAtfirmative Action Employer - 50% Recycled110% Post Consumer Paper

'umber NC0510284
t-Eleven Store No. 21455
er 5, 1995
Jpon completion of construction and prior to operation of this permitted facility, a certification
received from a professional engineer certifying that the permitted facility has been installed in
ice with the NPDES Pe it, the Certificate of Coverage, this Authorization to Construct and the
TT-.+ n rN
North Carolina General Statute 143-2 B.6A to 143-215.6C.
The issuance of this permit does not preclude the Permittee from complying with any and all
statutes, rules, regulations, or ordinances which may be required by the Division of Environmental
Management or permits required by the Division of Land Resources, the Coastal Area Management Act or
any Federal or Local other governmental pen -nit that may be required.
If you have any questions or need additional information, please contact Greg Nizich, telephone
number 919/733-5083, extension 541
Sincerely,
Original Sign*d BY
David A. Goodrich
A. Preston Howard, Jr., P.E.
cc:
Terccoal Aassi"stanWce aWnd Certification "GropupW
Facility Assessment Unit
Mr. Steve Graf, Universal Engineering Sciences (w/design package).
Central Files
NPDES Permits File

STATE OF NORTH CAROLINA
r)PPA'RTUPNTn'FFVVM(1TsJMPXT tWATITt AT\TnVA'nTRAT,RRSZ01TRriz.s
UNDERTHE
NATIONAL POLL113CANI PIS.CHALRGE ELIMINA110 L315-11
In compliance with the provision of No Carolina General Statute 143-215.1, other lawful
regulations promulgated and adopted by the North Carolina Environmental Management Corrur
Federal Water Pollution Control Act, as amended,
The Southland Corporation
is hereby authorized to construct and operate a groundwater treatment system consisting of an oil/wal
stripper, and activated carbon filtration for petroleum contaminated groundwater with the disct
wastewater from a facility located at
Former 7-Eleven Store No. 21455
Mecklenburg County
to receiving waters designated as Stewart Creek in the Catawba River Basin
V of General Permit No. NCG5 10000 as attached
certificate of coverage shall become effective September 5, 1995
Certificate of Coverage shall remain in effect for the duration of the General PermiL
:d this day September 5, 1995
OrigJrlal Sign*d BY
David AL Goodrich
A. Preston Howard, Jr., PE., Director
Division of Environmental Management
By Authority of the Environmental Management Commission

$07 55` V8 1 4310110100 FEET sQg t
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PPPI%
SOO PRIORITY PROJECT: No
To: Permits and Engineering Unit
Water Quality Section
Attention: Greg Nizich
Date: August 25, 1995
NPDES STAFF REPORT AND RECOMMENDATIONS
County: Mecklenburg
XPDES Permit No.: NCG510284
4R0 No. . , 95-121
PART I - GENERAL INFORMATION
1. Facility and Address: 7-Eleven Store No. 21455
(7W Pemed4ation
The Southland Corporation
1304 Lee Road
Orlando, Florida 32810
2. Date of Investigation: August 2.1, 1995
3. Report Prepared By: Michael L. Parker, En iron. Engr. 11
4. Person Contacted and Telephone Number: Willo Smith, (407)
295-0979.
5. Directions to Site: The street address for the subject
facility is 2501 Freedom, Drive, Charlotte, N.C.
61 Discharge Point(s), List for all discharge Points: -
Latitude: 35* 14' Oe"
Longitude: 80* 52' 53"
Attach a USGS Map Extract and indicate treatment plant site
and discharge point on map.
USGS Quad No.: G 15 NW
7. Site size and expansion area consistent with application:
Yes. Limited expansion area.
S. Topography (relationship to flood plain included):
Relatively flat, 0-2% slopes. The site is not located in a
flood plain.
9. Location of Nearest Dwelling: Approx. 800± feet from the
proposed WWTP site.

ppppp-
Page Two
10 � Receiving Stream or Affected Surface Waters: Stewart Creek
. Classification: C
h, River Basin and Subbasin No.: Catawba 030834
C. Describe ,receiving stream features and pertinent
downstream uses: The Proposed discharge will enter
CMUD"s storm sewer collection system. There are no
Known downstream users and/or water intakes below the
Pont where the storm sewer empties into the receiving
stream.
PART II - DESCRIPTION OF DISCHARGE :AND TREATMENT WORKS
1. a. Volume of Wastewater. 0.00576 MGD;(Design Capacity
b. What is the current permitted 'capacity: NIP.
e°. Actual treatment capacity of current facility (current
design capacity): N/
d. Date(s) and construction activities allowed by Previous
TCs issued In the previous two years: /
e. Description of existing or substantially constructed
WWT facilities: There are no existing WWT facilities.
f. Description of proposed W3T facilities: The applicant
proposes to construct anoil/water separator followed
by an air stripper and activated carbon absorption.
. Possible' toxic impacts to surface waters: GW
remediation effluents have been shown to e hi at toxic
characteristics. Consideration should be given to
incorporating toxicity testing/limits in the Permit.
h. Pretreatment Program (PCTWs only): Not Needed.
2. Residual 'handling and utilization/disposal scheme:
Residuals generation is not expected.
3. Treatment Plant Classification: Tess than 5 points; no
rating (include rating sheet) Class I
4. SIC Codes): 999
Wastewater Codes): 66
S. MTU Codes): 5600
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies involved (municipals only)?
o

PPP" -
Page Three
2. Special monitoring or limitations (including toxicity)
requests: None at this time.,
3. Important SOC/JOC or Compliance Schedule dates: N/A
4. Alternative Analysis Evaluation
a. Spray Irrigation: insufficient area.
b .
10
Sig
re,
M 7 S
val by P&E and
mit be issued for this facility
.are ot.-Report Preparer Difte /�

ppppppp CHARLOTTE EST QUADRANGLE
NORTH CARLIA-ECIERG Co.
7.5 MINUTE SERIES (TOPOGRAPHIC)
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- to
lorth Carolina
4nt of Environment,
d Natural Resources AI[4
Environmental Management Abe
It, Jr., Governor i7LA��
�. Howes, Secretary PENW-1
Howard, Jr., P.E., Director ENVTRONMENT, HE-8,LTH,
& NATtTRAL RESOURCES
August 9, 1995
AUC 14 1995
pith, Environmental, Program Director
id Corporation NVON OF �AUblrVWUT
ad
rida 32810 11011OUE
Subject: NPDES Permit Application
NPDES Permit #NCG510284
Former 7-Eleven Store No. 21455
Mecklenburg County
ith:
aiowledge receipt of the following documents that were received on 08/03/95:
Intent for NCG510000
ig Proposal
of non -discharge alternatives
g items are necessary before final action on this permit:
�ets were stamved with a State of Florida PE stamn instead of the reoiiired North rarnlinn
peer s iNt_ stamp snowy De suDmittea tor tne pertrat
,rt and recommendations rigg this discharge. If you have any questions re g-ardi-n-gthis
ication, please contact Mr. Greg Nizich at 919-733-5083, extension 541.
Sincerely,
"kavid Goodrich, Supervisor
NPDES Permits Group
M!!���ces, Inc.
Permit File
'.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An E .pal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper
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State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street - Raleigh, North Carolina 27611
James 0. Martin, Governor k Preston Howard, Jr., P.E.
William W. Cobey, Jr., Secretary Acting Director
NOTICE OF IN -TENT
National Pollutant Discharze Eli 'nation System
Application for Coverage under General Permit NCG510000; Groundwater remediation projects
designed to treat petroleum contaminated groundwater.
1. Name, Address, location, and telephone number of facility requesting Permit.
A. Official Name: Former 7-Eleven Store No. 21455
B. Mailing Address:
(1)Street Address; 11n4 I pim Pn;4ti
(2)City; Orlando
(3)State; R nriti;k
WZip; 32810
(5)County; Oran
C. Location. (Attach map delineating general facility location)
(I)Street Address; 2501 FrPPHOM Orive
(2)City; Charlotte
(3)State; North Carolina
WCounty; Mec k1, e n1bu,r_q____
D. Telephone Number, (407 295 - 0979
2. Facility Contact:
A. Name; -Mr. Willo Smith
B. Title; Wirector
C. Company Name, I_h­e­__S6­u_thT_can d--Cor o-or — a t i o n
D. Phone Number; 407) 295 -_29Z9
3. Application type (check appropriate selection):
A. New or Proposed; X
B Existing; If previously permitted, provide permit number
ard issm date�_.
C. Modification;
(Describe the nature of the modification):
4. Description of discharge
A. Please state the number of separate discharge points.
1,W 2J 1 3,[ 1 4,11 ; __J 1.
Page I

and specifications i
with requirement I
three sets of plans
5. What is the nature of the
a Name of receiving wat,
(Attach a USGS topogr
7. Is the discharge directly
if no, state specifically
I�
O. Subsurface Disposal;
C. Spray Irrigation;
ny knowledge and belief such info ton is to
Printed Narre of Pawn Sgw
Date Application Sigre
Signatum of Applim
.ation.
The facil iy apply
is currently a con,
k Ctasificatihn: d
:barge.) See Append iA
the following options:
Q ts44Ld 4m4L.a
punishment by a :fine -of not more than $10,000 or impnsonment not more than years;
similar offense.)
package to:
Division of Environmental Management
ICES Permits Group
Post Office Box 2 535
Raleigh, North Carolina 27626-0535
Page 3

� t
:
4

4.D
Parameter
Maximum Conc,
Average Influent Conc,
Effluent
Observed
(25% Safety Factor)
Conc.
(ug/1)
(ug/1)
(ug/1)
1. Benzene
1,400
4,146,4
BDL
2. Toluene
19,000
4,776.6
BDL
3. Ethylbenzene
3,500
970.2
BDL
4. Xylene
19,000
4,933.6
BDL
5. Lead
0
0
0
6. MTBE
2,600
4,584.6
4.4
7. EDB
0
0
0
8. 1,2 DCE
0
0
0
9. IPE
1,300
415.2
NC
10. Naphthalene
0
0
0
11. Phenol
0
0
0
Notes: BDL
Below Detection Limits
NC Not Calculated
UgA =
micrograms per liter
(�rntmr4t"n+jzw <-Mrvlrdol %Ay�rk- COA &A-*L--,J- �^A fl^.4
" ­ ­ -
of MTBE is 99.9% when the groundwater is treated only with the air -stripper; however, this
rate is expected to be 100% with the addition of an oil/water separator and carbon drums
to the treatment system.
Appendix A-1

r
APPENDIX -2

JUN-05-95 MON 10t10 PACE INC FAX NO, 704 875 8091
gum N w maw Q W]
Ftavtc3taxaca7AC LASOAATORIE3 .
REPORT OF LABORATORY ANALYSIS
Mr. Syed Nasnain January 25, 1995
PAUA 9 PACE Project Number: 6SO112512
Client Reference: Camp Creen,•Ereedom Drive
PACE Sam le Number. 92 0318986
Date Cr�llected
Sate 01/121 5
WA Received. 01/12/95
Client Sample ID. MW-1
Parameter Units MDL METHOD DATE ANALYZED
4
ORGANIC ANALYSIS
1NDIVIDUAL PARAMETERS
1,2-Dibromoethane (F09) 11g/1 0.05 NO 504 01/24/95
PUR EABLE HALOCARBONS AND AROMATICS 601/602
Chloro ethan 11g/L 1.0 NO 01/18/95 .*
Bromomethane a /L 1.0 ND 01/18/95
Uichlorod fluoromeEhane ug/L 1.0 NO 01/1 /9$
Chloroethene (Vinyl chloride' ug/L 1.0 NO 01/18/95
Chloroethane cg/L 1.0 NO 01/18/95
Uichloromethane ug/L 1.0 Nn 01/18/95
Trichloro luorhmethane ug/L 1.0 NO 01/18/95
1,1-01ChlVrUt!Llene ug/L 1.0 NO 01/1 / 5
1,1-�Di lereeth n u /L 1.0. NO 01/18/9b
trans«-1,2-Dichloroethene ug/L 1*0 NO 01/18/95
Chloroform ug/L 0.5 NO 01/18/95
1,2-Dichleroothaane a /L 1.`0 NO 01/18195
1,1,1-Trichl ur oethane a /L 1.0 NO 01/18/9
Carbon tetrachloride ug/L 1.0 ND 01/t8/9
9ro odichlormethane, ug/L 0.5 NO 01/18/9
1,-Dichlur•upropanc ug/L 1.0 NO 01/18/95
trans-1,3-Dic l' r r pene u /L 1.0 ND 01/18/95
1,1,2-1•richlorde ene ug/L 1.0 NO 01/18/g5
Dibromochlorom thane ug/L 0.s NO 01/18/95
1,1 -Tri hloreethane ug/L 1.0 NO 01/18/95
cls•1. 01 1R 5
-ti'lchloropropne ug/L 1.0 Ni; / /
2-Chloroethoxyethane ug-JL 1.0 NO 01/18/95
Rromoform ug/L 0.5 NO 01/18
/95
1,1 2,2-Tetra loroethane ug/L 1.0 NO 01118/95
Tetrachloroethene u/L 0.5 ND 01/18/95
Methyl-t-butyl 'ether ug/L 100 2800 01/18/95
Isopropylether ug/L 1.0 39 01/18/95
Benzene ug/L 1.0 NO 01/18/95
Toluene ug/L 1.0 NO O1/38 5
3* KdnC§Y•;♦t.+r,44yyryy. "ggs.44ie8 100 An Equsl Opportonity iM*1*YQf
TEL 704-975,50 2

*JU - -95 NON 10:17 PACE INCFAX NO. 704 975 9091
Y
,ENVIRONMENTAL LABORATORIES REPORT OF LABORATORY ANALYSIS
0
Mr. Syed Hasnain January 25, 1995
Page 10 PACE Project dumber: 6501.12512
C1 let Reference: Kamp Green,, Freedom Drive
PACE Sample lumber. 92 0318986
Date Collected: 011295
Date Received. 01/12 '95
Client Sample ID: MW-1
Parameter _ Units MDL METHOD DATE ANALYZED
ANTC ANALYSIS
9800 Kimsey Avenut, Suite 100 An Edual OpporTunity Employer
Huncar ville, NC 2807
T L.704-ax -so9a

' ON-05-95 MON 12:05 PACE iNC FAX NO. 704 975 9091 P>03/04
r
Iliad'
CNVt80J49 AJ, 30RATOPUES REPORT OF LABORATORY ANALYSIS
Fir. Syed Nasnain January 25, 1995
Page 3 PACE Project Number: 650112512
Client Reference: Care Creek. Freedom Drive
PACE Sample Number; 92 0318951
Date Collected: 01/12/95
Date Received: 01/12/95
Client Sample 10: Mkt --
Parameter Units MDL METHOD DATE ANALYZED
ORGANIC ANALYSIS
INDIVIDUAL PARAMETERS
I,2-Dibraomoethane (EDB)
ug/L
0.05
ND
504 01/24/95
PURGABL'E 14ALOCARSONS AND AROMATICS
601/602
Chl;oromethane
ug/L
1.0
ND
01/17/95
Bromomethane
ug/L
1.0
NO
01/17/95
Di hlorodifluoromethan
ug/L
1.0
NO
01/17/95
Chl'orothene !(Vinyl chloride')
ug/L
1.0
NO
01/17/95
Chl oroetrane
ug/L
1.0
NO
1/1/5
Dichloromethane
ug/L
1.0
ND
01/17/9
Trichlorofluoromethan+e
ug/L
1.0
NO
01/17/95
1,1-Dichloroethene
is/L
1;0
NO
0/1/5`
I,'-Dlchloroethane
u/L
1.0
NO
01/17/95
trans-1,2-Dichloroethene
u /L
1.0
NO
01/17/95
Chloroform
L
0.5
3.6
01/17/95
.1,2'-Dichloroethane
ug/L
1.0
NO
01/17/95
1,1,1-Trlchloroethane
u /L
1.0
NO
01/17/95
Carbon tetrachloride
ugL
1.0
NO
01/17/95
Bro odichlormethane
a /L
0.5
NO
01/17/9
1,2-Dichloropropane
u/L
1.0
ND
01/17/95
trans- 1,3-Dic l oropropene
uq/L
1.0
NO
01/17J95"
1,1-Trichloroethene
ug/L
1.0
NO
01/17/95.
Diromochloromethae
ug/L
0.5
NO
01/11/95
1,1,2-Trichloroethane
ug/L
1.0
NO
01/17/95
cis-1,3- ichloroprppen
u9/L
1.0
NO
01/1 /9
Chloroethoxyethane
ug/L
1.0
NO
01/17/95.
Bromoform
u L
0.5
ND
01/17/95
1,1 ,2-Tetrachlordethane
ug/L
1.0
NO
01/17/9
TetrRachldroethene
ug/L
0.5
ND
01/17/95
Methyl- -butyl ether
ug/L
1.0
ND:
01/17/95
Isopropyl ether
a /L
1.0
NO
01/17/95 .
Benzene
ug/L
1.0
NO
01117/95
Toluene
ug/L
1.0
NO
01/17/95
%00 Kincify Avenue. Suite 100
MyunntvfsvelfO' NC 2$073
An 14UZI Opportunity E mploytr
TFL,. rna.xa -gng7

*4UN-95- ICN, 12:06 PACE INC
FAX NC®
704 575 9091
P* 04/C4
r
• w
N¢
f
REPORT OF LABASY ANALYSIS
VIRONMEN TAL+BOIRATO
Mr. Syed Hasnain
January
25, 1995
Page 4
PACE Project Number: 650112512
Client Reference: Camp Green,:Freedom
Drive
PACE Sample Number:
92 0315951
Gate Collected:
01/1 /95
Date Received:
01/12/95
Client Sample ID:
MW-2
Parameter
Units
MDL
METHOD DATE ANALYZED
(ORGANIC ANALYSIS
PURGEABLE HALOCARSONS AND AROMATICS
601/602
C 1probenzene
ug/L
1.0
NO
01/17/9s
Ethylben.zene
ug/L
1.0
NO
01/17/95
Xylenes
ug/L
1.4
NO
01/17/9
1, Gi blorebenzene
ug/,L
1.0
ND
G / /g5
1, -� ichln n en e e
u9/L
1.0
NO
01/1 / 5
1, -Gxchl rcbenzene
ug/L
1.0
NO
01,17/ 5
980 ;nc r Av nur, .suite 100
HtJAWSWIle. NC Ldt;/a
An Equat Opportunity Emp€ayur

',JUN-05y-95 MON 10 + 15 PACE INC FAX NO, 704 875 9091
or
,ENVIAONMIE TA1. LRS "AT R193 REPORT OF LABORATORY ANALYSIS
r. Syed Ha,snair January 2 ,1995
Page 7 PACE Project Number: 650112512
Client Reference: Camp Green, Freedom Drive
PACE Sample Number: 92 0318978
Date Collected: 01/12/95
Date Received: 01/12/95
Client Semple ID: MW-
Parameter Units MDL METHOD DATE ANALYZED
ORGANIC ANALYSIS
INDIVIDUAL PARAMETERS
1,2-Dibromoethane EDB1 g/L 0.05 ND 504 01/24/95
PURGEABLE HALOCARBONS AND AROMATICS 601 602
Chldromethane ug/L 1.0 NO 01/18/95
Bromomethane ug/L 1.0 NO 01/18/95
Dichlorodifluoromethane ug/L 1.0 ND 01/18/95
Chloroethene (Vinyl chloride)� ug/L 1.0 NO 01/18/95
Chldroethane ug/L 1.0 NO 01/18/95
0ic loromethane ug/L 1.0 ND 01/18/95
trichlorofluoromethane ug/L 1.0 NO 01/18/95
1,I-0ichlorohee ug/L 1.0 NO 01/18/95
1,1 Dic oroethane ug/L 1.0 NO 01/18/95
trans-1,2-Dichloroethene ug/'L 1.0 ND 01/'18/9
Chloroform ug/L 0.5 NO 01/18/95
1,Dichoroethane ug/L 1#0 ND 01/18/95
1,11-Trichloroethane ug/L 1.0 ND 01/18/9
Carbon tetrachloride ug/L 1#0 NO 01/18/95,
Brorodichlormethane ug/L 0.5 ND 01/18/g5
1,2--Dichloropropane ug/L 1.0 Na 01/18/95
trans-1,3-Dichloropropene ug/L 1.0 NO 01/18/95
1,1,2-Trichlor•oethene ug/L 1.0 ND 01/18/95
Dibromochloromethane ug/L 0.5 ND 01/18/95
1,1,2--Trichloroethan ug/L 1.0 ND w 01/18/95
cis-1,3-Dichloropropene u/L 1.0 NO 01/18/9
2-Chloroethoxyethane ug1L 1.0 NO 01/18/95
Bro aoform uq/L 0.5 NO 01/18/96 ,
1,1,2,-Ttrachloroethane u/L 1.0 ND 01/18/95
Tetrachloroethene ug/L 0.5 NO 01/1/9
Methyl-t-butyl ether ug/L 1.0 11. 01/18/9
Isopropyl ether ug/L 1#0 2.1 01/18/95
Benzene ug/L 1.0 4#9 01/18/9S
Toluene ug/L 1.0 NO 01/18/95
tWO Kirt; r r' ven;9, Suite 3UII An fqual Opportunity empioytr
• 'o. NC 21075
TFi ° 'tfla4.A7K-4rt49

` UN-0 -95 MON 10:16 PACE INC FAX NO, iO4 8(b 909
04VIRONMENTAL L BOAATORIES REPORT OF LABORATORY ANALYSIS
t
s
Mr. Syed Hasnain January 25, 1995
Page 8 PACE Project Number. 650112512
Client Reference: Camp Green,'Freedom Or1ve
PACE Sari 1 Number: 0318978
Date Cn e to : 01/ /95`
Date Received: 01/12/96
Client Sample eID; MW-4
Parameter Units MCL METHOD DATE ANALYZED
ORGANIC ANALYSIS
PURGEABLE HALOCARRONS AND AROMATICS 60 /60
C lerube zene ug/L 1.0 NO 01/18/95
thylbenzene ug/L 1.0 NO 01/16/95
Xyl tines ug/L 1.0 NO O1./18/95
1,3- ichlorcbenzene ug/L 1.0 NO 01/18/95
1,4-Oichlorabenzene g/L 1.0 NO 01/18/95
, Oich aroben ene ug/L 1.0 NO 01/18/95
9000 K:ncoy Avalwo. "who 100 An Cqusl Opportunity gee ployor
uetr r v i7r., NC 28073

` UN-05-9b MON 10:15 FACE 1NC FAX NO, 704 875 9091
O °
f
REPORT Of LABORATORY ANALYSIS
4
Mr. Syed Hasnain January 25, 1995
Page 5 PACE Project Number: 650112512
Client Reference: Camp Green,'Freedom Drive
PACE Sample Number: 92 0318960
Date Collected. 01/12/95
Date Received: 01/12/96
Client Sample D: -5
Parameter Knits MOL METHOD _ DATE ANALYZED
ORGANIC ANALYSIS
INDIVIDUAL PARAMETERS
1,2-Dibromoethane D81
ug L
0.05
NO
504 01/24/95
PURGEARLE HALOCARRONS AND AROMATICS
601/602
Chloromethane
ugL
1.0
NO
01/18/95
Bromomethane
ug/L
1.0
NO
01/18/95
Oichlorodifluoro ethane
ug/L
1.0
NO
01118/95
Chloroethene (Vinyl chloride):
u L
1.0
NO
01/18/95
Chloroete
ug/L
1.0
NO
01/18/95
Oichloromethane
ugL
1.0
NO
01/18/95
Trichlorofluoromethan
/L
1.0
NO
01/18/95
,1-Oichloroethene
ug/L
1.0
NO
01/18/95
1,1-Oichloroethane
g L
1.0
NO
01/18195
trans-1,2-DichToroethene
ug/L
1.0
NO
01/18/95
Chloroform
ug/L
0.5
NO
01-/18/95
1,2-Oichloroethane
a /L
1.0
NO
01/18/95
1,I,1-Tr chloroethane
ug/L
1.0
NO
01/16/95
Carbon tetrachloride
u /L
1.0
ND
01/18/95
B omodichlo" ethane
ug/L
0.5
NO
01/18/95
1,2Oichloropropane
ug/L
1.0
NO
01/18/5
trans-1,3-Dichloropropene
ugL
1.0
NO
01/18/95, .
. 1,1-Trichloroethene
ug/L
1.0
NO
01/18/95
Oibromochloromethane
ugL
0.5
NO
01/18/95
,1,2-Triloroethane
u/L
1.0
NO
01/18/.95
cis-1,3-Dichloropropene
ug/L
1."0
NO
01/18/95
-C lorootho ha e
ug/l-
1.0
NO
01118/95
Bromoorm
ug/L
O.S
NO
01/18/95
1,1,2,2-Tetrachlor th n
u /L
1.0
NO
01/18/95
Tetrachlorohene
u/L
10
NO
01/18/95
Methyl-t-butyl ether
u9/L
1.0
ND
01/18/95
Isopropyl ether
ug/L
1.0
NO
01/18/95
Benzene
u/L
1.0
NO
01/1/
Toluene :
ug/L
1.0
NO
01/18/95
;33% KiMPY Avea{{r. S,:" r G
An Equal Opportunity mpiav>r
1t:r{r r;v{t{e, NC Mile
TIL 704-075-SM

`4UN-95-95 MOM 10: Is PACE I NC FAX NO, 794 875 9091
K
y }
, hVtA0NM NTAL LAZORATORIES REPORT OF L.A O ATUR ANALYSIS
Mr. Syed! Ha nain January 25, 1996
Page 6 PACE Project dumber. 65011 51 '
Client Reference: Camp Green,;Freedom Drive
PACE Sample Number; 92 031896
Date Collected: 01/1 /95
Date Received: 01/1 /95
Client Sample'' ID: MW-5
Parameter _ Units MOL METHOD DATE ANALYZED
ORCANIC ANALYSIS
PURGEABLE lALOCARBGNS AND AROMATICS 601 60
C lnrobenz.ene ug/L 1.0 NO 01/18/95
Ethylbenzene ug/L 1.0 ND 01/19/95
l tines ug/L 1.0 Nil 01/18/95
1,3-Dich orebenzene ug/L 1.0 ND 01/18/95
1, -Dichlarobenzene ug/L 1.0 ND 01/18/95
a 5
9800 Circev Avenue. Suite 100 An Equat Opportunity Employer
Huntetsville, No 28076
TV. IR14,01t Mal

` U -05-9 M N 10:116, PACE INC FAX NO, 704 875 9091
REPORT OF LABORATORY ANALYSIS
Mr. Syed Nasnain January 25, 1995
Page 11 PACE Project Number: 650112512
Client Reference: Camp Green, Freedom Drive'
PACE Sample Number: 92 0318994
Date Collected: 01/12/95
Date Received: 01/12/95
Client Sample ID: W_6
Parameter Units MDL MET140D DATE ANALYZED
ORGANIC ANALYSIS
1,2-Dibromoethane EDB
ug/L
0.05
NO
504 01/24/95
PURGEABLE MALOCARBONS AND AROMATICS
601/602
Chloromethane
gL
25
NO
0/18/95
romthan
g/L
25
ND
01/18/95
Dichlorodi uorome
u /L
25
37 (1)
01/18/95
Chloroethene (Vinyl chloride).
ug L
25
NO
01/18/96
Chloroethane
ug/L
25
ND
01/18/95
Dichloromethane
u /L
.26
44 (2)
01/18/95
Tri hlorofl o methane
ug/L
25
NO
01/18/95
1,1-Dichloroethene
ug/L
26
ND
01/18195
1,1-01hloroethane
ug/L
25
NO
01/18/95
trans-1,2-Dichloroethene
u/L
25
NO
01/18/95
Chloroform
u/L
12
NO
01/18/9
1,2-Oichloroet ane
ug/L
25
NO
a/18/95
1,1,1-Trichlooethan
/L
25
NO
01/18/95
Carbon tetrachloride
ug/L
25
NO
01 1S
Bromodichlormethane
ug/L
12
NO
01/18/95
1,2-Dichloropropane
/L
25,
NO
01/18/95
trans-1,-Dichloropropene
ug/L
25
NO
01/18/95
1,1,-Triehloroethene
-p9/L-
25
NO
01/18/95
Dibromochloromethane
ug/L
12
NO
01/18/ a
1,1,2-Trichloroethane
ug/L
25
NO
01/18/95.
cis-1,3-Oichloropropene
ug/L
25
NO
01/18/95
2Chloroehoxyethan
u9/L
25
ND
01/18195
Bromv orm
ug/L
12
NO
01/18/05
1,1,2,-Tetrachloroethane
g/L
25
NO
01/18/95
Tetrachloroethee
ug/L
12
NO
01/18/95
Methyl-t-butyl ether
ug/L
100
6600:
1/18/5
Isopropyl 'ether
ug/L
25
240
01/18/95
Benzene
ug/L
25
1900
01/18/95
Toluene
ug/L
25
78
01/18/9
380 Kinc4y Avenue. Suite ,00
An Squat Opportunity Employer
wfo nSv nv, Nc ?8oi$
TCL 704-87s- 2

)5-95 LION 10:16 PACE INC FAX NO, 704 876 9091
Y
, REPORT OF LABORATORY ANALYSIS
iyed Nasnain January 25, 1995
12 PACE Project Number. 650112512
it Reference: Camp Green,.Freednm Drive
Sample Number'. 92 0318994
Collected: 01112195
Received: 01/1/95
it sample ID: Mkt-6
Teter Units MUL METHOD DATE ANALYZED
flmnamk'm
.ABLE HALOCARBONS AND AROMATICS
601/602 i
,oben ene
ug/L
25
ND
01/18/95
benzene
ug/L
25
280
01/18/95
es
ug/L
25
540
01/18/95
liehlerobenzene
ug/L
25
ND
01/lg/95
iichlorobenzene
ug/L
25
ND
01/18/95
rich ornbenzene
ug/L
25
NU
01/18/95
data have been reviewed and are
approved
for release.
ret S. Harding
er, ; Organic Chemistry
UGC Koluoy Avottuo, Suitt 100 An Squat Opportunity Employor
t<uftc tsvittts, Nt 23072

NO. 704 875 9091
it Engineering Sciences
January
25, 1995
itlons Ford Road
PACE Project Number. 650112512
e, MC 28134
reference: Camp Green, Freedom
Drive
iple Number.
92 0318943
lected:
01/12/95
MW-7
r
units
MDL
METHOD DATE ANALYZED
ANALYSIS
AL PARAMETERS
omoethane EDB)
ug/L
0.05
NO
504 01/24/95
E HALOCARSONS AND AROMATICS
601/602
thane
ugL
10
NO
01/17/95
pane
ug/L
1
NO
01/17/95
diflupromethane
ug L
1.0
NO
01/17/95
here ,(Vinyl chlorides _
ug L
1.0
ND
01/17/95
bane
u/L
1.0
NO
01/17/95
methane
u/L
10
NO
01/17/95
efluoromethane
u/L
10
NO
01/17/95
lorothene
ugL
10
ND
01/17/95
loroe!thane
ug/L
1.0
NO
01/17/95
-Dichloroethene
ug/L
1.0
NO
01/17/95
rm
ug L
0.5
NO
01/17/95
oroe an
ug L
1.0
NO
01/17/95
chloroe!thane
ug/L
1.0
NO
01/17/95
etr c loride
ug L
1.0
ND
0 /17/9S
hlormethane
ug-L
0.5
NO
01/17/95
loropropane
ug/L
1.0
NO
01/17/95
-Di loropropene
ug L
1.0
ND
01/17/95
1.1,2-Trichloroe e e u /L 1.0 NO 01/17/95
Dibromochloromethane
ug/L
0.5
NO
01/17/95
1,1-Trchlorothn
ug/L
1.0
NO ;
01/17/95
cis-1, -Di chlbr prope e
u /L
1.0
NO
01/17/95
2-Chloroetho yethane
g/L
1.0
NO
01/17/95
Sro ofo `
ug/L
0.5
NO
01/17195
1,1 ,2- e r hloreeth
ug/L
1.0
NO,
01/17195
Tetra hldroethene
ug/L
0.5
NO
01/17/95
Methyl- -butyl ether
u /L
1.0
ND
01/17/95
$800 Ximcq Aversue. Suite 100
th alletsyftte, NC ?8018.

*JUN-05- MON 10<14 PACE INCFAX NO, 704 875 9091
e
RY
IiNVIRONME NTAL LABORATOMiES REPORT µ ANALYSIS
r. Syed Hasnain January 25, 1995
Page
PACE Project Number: 650112S12
Client Reference: Camp Green,,Freedom Drive
PACE Sample Number. 92 0318943
Date Collected: 01/12/95
Date Received. 01/12/95
Client Sample IO• MW-7
Parameter Units MDL METHOD DATE ANALYZED
ORGANIC ANALYSIS
F i
PURGEABLE HALOCARBONS AND AROMATICS 601/602
Isopropyl ether ug/L 1.0 ND 01/17/95
Benzene ug/L 1.0 NO 01/17/95
Toluene ug/L 1.0 ND 01/17/95
Chlorobenzene ug/L 1.0 NO 01/17/95
Ethlenzee ug/L . 1.0 NO 01/17/95
Xylenes u/L 1.0 ND 01/17/95
1,30ihloree u/L 1.0 NO 01//95
, -Di hlorobenzene u9/L 1.0 N0 01/17195
1,-Dichloro n en ug/L 1.0 ND 01/17/95
38p0 lC ocoy AwU4, s"uitz tpp An liqual Opportunity Employer
Hurytervilie. NC 48072

Qua---
qs
bf
•
�4 Y 'Date Sampled
SAMPLS 0E.SCRIPTION, ,TIME MATRIX PAWN*
41ATION OATC TIME
;-rai -commel-lis
'NAL

w
ENVIRONMENTAL LABORATORIES REPORT OF LABORATORY
Universal Engineering Sciences April 06, 1995'
12249 Nations Ford Road PACE Project Number: 25032057'
Pineville, NC 28134
Attn: Mr. Syed hasnai'n
Client Reference. 7-11 #21455
PACE Sample Number; 90 0600011
Date Collected: 03/27/95
Time Collected: 14:15
Date Received: 03/28/95'
Client Sample ID, VMW-
;t
I)AIF_,& IIME ANAL Yi'Fn,,,,
IhORGARILANALtSIS
INDIVIDUAL PARAMETERS
Alkalinity, as Ca 03 mg/L 1 230 03/31/95 13:15'
Calcium ICP mg/L 0.2 56 03/31/95 13:0
Hardness, Total mg/L 1 370 03/31/95 13:06'
Iron ICP mg/L 0.2 100 03/31/95 13:0 '
Magnesium IC m/L 0.02 56 3/31/95 13.06
Solids, Total Dissolved EPA 160.1 m /L 5290 03/30/95 09:30
Standard Plate Count col/m1 1 14000 03/2 / 5 14:00
Fl11 orida DEP CornpOAP #870529G Labe Certification: F#orida Environmental: HRS #E84003:=•prida SDWA: HRS 184125
5460 Beaumont Center Blvd. Tampa. FL 33634 An Equal Opportunity Employer
TEL [phone]
FAX:[phone]

G:
ENVIRONMENTAL LABORATORIES REPORT OF LABORATBRY ANALYSIS
Mr. Syed Hasnain April 06, 1995
Page
PACE Project Number: 25032057
Client Reference: 7-11 #21455
PACE Sample Number: 90 0600020
Date Collected: 03/27/95
Time Collected: 13:50
Date Received. 03/28/95
Client Sample ID: MW-3
ORGANI.C.-MALISIS
INDIVIDUAL PARAMETERS
1,2-Dibro ethane (504) ug/L 0.02 ND 04/04/i95 19:07
Isopropyl ether ug/L 500 1300 (1) /29/95 20:46
601/602 - VOLATILE HALOCARBONS/AROMATICS (1)
Surrogate Recovery --601 % 87 03/31/95 20:54
Surrogate Recovery - 602 82 03/31/95 0:5
Chloromethane ug/L 1200 ND 03/31/95 20:54
Bromomethane ug/L 2000 ND 0/31/95 20:54
Di hlorodifl orom than ug/L 1000 ND 03/31/95 20:54
Vinyl Chloride ugh 400 ND 03#31/95 20:54
Chloroethane ug/L 700 ND 03/31/95 20:54
Methylene chloride ug/L 2500 ND 03/31/95 20:54'
Tri'chlorofluoromethane ug/L 250 ND 03/31/95 20:54
],I-Dichloroethylene ug/L 250 ND 03/31/ 20:54
1,1-Dich'loroethane /L 300 ND 03/31/95 20:5
trams-1,2-Dichloroethylene a /L 400 ND 03/31/9 20:54
Chloroform g/L 500 ND 03/31/95 20:54
1,2-Dichloroethane ug/L 500 ND 03/31/95 20:54
1,1,1-Trichlo oethane ug/L 400 ND 03/31/95 20:54
Carbon Tetrachloride u /L 250 ND 03/31/95 20:54
Bromodichloromethane ug/L 300 ND 03/31/95 20:4
1,2--Dichloropr°opane ug/1 250 ND 03/31/9 20:
54
trans-1,3-Dichloro-l-propene ug/L 400 ND 03/31/95 20:54
1,1 2-Trichloroethylene ug/L 450 NO - 03/31/95 20:54
Di ro c lord etha e ug/L 500 ND 03/31/95 20:54
1,1 2-Tri'chloroethane ugh 500 ND 03/31/95 20:54
cis--1, -Dichl ro-1-propene ug/L 350 ND 03/31/9 20:54
Bromofor ug/L 1000 ND 03/31/95 20:54
1,1,2,2-Tetrachloroethane ug/L 200 ND 3/31/9 20:54
1,1,2,2-Tetrachlor ethylene ug/L 450 ND> 03/31/95 20:54
Methyl Tert-Butyl Ether u /L 2500 2600 03/31/95 20:54
Florida OEP
5460 Beaum
Tampa. FL 3:
TEL 813.88
FAX• MI-RRi
ampOAP #870529C
it Center Blvd.
i34
4268
682
r : Florida Environmental: HRS #E84003 =Tor da SOWA: HRS 184125
An Equal Opportunity Employer

svvr�tcarvexraTaL taaRTgaacREPORT OF LABORATORY
Mr. Syed Hasnain April 06,'1995
Page 3 PACE Project Number: 25032057
Client Reference: 7-11 #21455
PACE Sample Number: 0;060000
Date Collected: 03/27/95
Time Collected: 13:0
Date Received: 03/28/95
Client Sample ID: MW-3
Parameter S i7A7 L TE aNAI Y7FE}
ORCA d ANAL U-S
601/602 - VOLATILE HALOCARBONS/AROMATICS Cl?
Benzene u/L 300 14000 03/31/95 20:54
Toluene ug/L 500 1900 03/31/95 20:54
Chlorobenzene ug/L 60 ND 03/31/95 20:54
hlbezeneug;/L 40 3500 03/31/95 20:54
Xy'lenes ug/L 40 19000 03/31/ 20:54
1,3-Dichlorobenzene ug/L 50 ND 03/31/95 20:54
1,4-Dichlorobenzene u. g/L500 ND 03/31/95 20:54'
1,-�Dichloro enzene g 500 ND 03/31/95 20:54
Total VOA ug/L 300 55500 03/31/95 20:54
These data have been reviewed and are approved for release.
Michael F. Vlder
Manager,; Inorganic Chemistry
Michael W. Palmer
Manager, Organic Chemistry
Florida DEP CompOAP #810525G Lab Certification! Florida Environmental: HRS #E84003; Florida SOWA HRS $84125
Tamp Beaumont Center Blvd. Pampa. FL 33634 An Equal Opportunity Employer
TEL: [phone]
FAX: [phone]

APPENDIX A-3

A N A L Y S I S
CAP S T R I P P I N G
T O W E R***�*
PROJECT Former --Eleven Store No. 21455
DATE : 6/1/1995
ENGINEER : David Preston
PACE ._ 1/2
PHYSICAL CONSTANTS
Design temperature
70..0 degrees
F.
Density of water
62.3 lb/ft``3
Density of air
0.0749 lb/ft'�`3
Viscosity of water
: 5.57E-04 lb/ft.;s
Viscosity of air
. 1,19E-05 lb/ft a s
Surface tension of water
73 dyne/cm
Atmospheric pressure
1.00 at
CONTAMINANT PROPERTIES
Name
Benzene
Molecular weight
78.1 g/mol'
Boiling point
176 degrees
P
Molal volume at boiling point 0.0960 L mol'
Henry's Constant
0.23000
Temperature Constant
1849 deg
Molecular diffusivity in
air 1.02E- 14 ft"2/s
Molecular diffusivity in
water 9.88E-09 ft"`2/
PACKING PROPERTIES
Name
Jaeger Trpacks
Packing Material
Plastic
Nominal Sire
2.00 inch
Specific Area
47.9ft-2/ft"
Critical surface tension
s 33'dyne/cm
Packing depth
20.0ft
Air friction factor
1
AIRSTRIP Vex. 1.2 (C) 1988
**** Universal Engineering Sciences, Inc*
****

*A
N A L Y" S I S OF S T R I P P I N G
'T 0 W
E R
ZOJECT
r Former 7-Eleven Store No. 21.455
BATE *
6/1 /1.995
�GINEER
. David Preston
PAGE :
/
LOADING RATES
iter mass loading rate
.28 -01. /ft-2
.r mass loading rate
2.27E-01 lb/ft-2.
kter volumetric loading rate
4 52E+00 /ft'`2
.r volumetric loading rate
1..36E+03 m/ft'�2
.r pressure gradient
c.06 61 H20/ft #
;lumetric' air/water ratio
300.0
ripping factor
72.6
SS TRANSFER PETES
rcentage;of packing area wetted
33.4
tied packing area
1.6.0 ft-2/ft-3 �
ansfer rate constant in water
3.82E-04 ft/s
ansfer rate constant in air
3.06E-02 t/s
erall transfer rate constant
3.63E-04 t/s
erall mass transfer coefficient
5.80E 03 Ils
U
11.5253
U
1..7353 ft
CONTAMINANT REMOVAL
fluent concentration
= 4.5 mg/L
Fluent concentration
4.73E-02 ug/L
action removed
1.00.0
5s of contaminant removed
2.2 E-01 lb/ft-2.day
icentration in airstream
3.91.E-01 mg/ft^.3
Expressed per unit of stripping tower cross --sectional area,
Expressed ,per unit of tower length
AIRSTRIP 'Ver. 1..2 (C) ` 1988
**** Universal Engineering sciences, Inc. **

******* A N A L Y S I S
OF S T R I P P I N G"
T G W E R *******
PROJECT s Fo er '7-Eleven Store No. 21455
DATE : 6/1/1995
ENGINEER : David Preston
PAGE 1/2
PHYS I L CONSTANTS
Design temperature
70.0 degrees
F.
Density of water
62.3 lb'/ft"
Density of air
0.0749 lb'/ft^3
Viscosity of water
: 6.57E-04 lb/ft.
"Viscosity of air
: 1.19E-0 lb/ft . s
Surface tension of water
73 dyne/cm
Atmospheric pressure
1.00 at
CONTAMINANT PROPERTIES
Name
Ethylbenene
Molecular weight
106. /mol
Boiling point
277 degrees
F.
Molal volume at boiling point 0.1404 L/mol
Henry's Constant
0.27000
Temperature Constant
1904 deg K
Molecular diffusivity in
air 8.16E-05 ft-2/s
Molecular diffusivity in
water 7.87E- 9 ft"'2/
PACKING PROPERTIES
Name
Jaeger Tripack.s
Packing Material
Plastic
Nominal Size
2.00 inch
Specific .Area
47.9 ft"�2/fth3
Critical surface tension
33 dyne/cm
Packing depth
20.0 ft
Air friction factor
15
AIRSTRIP Ver. 1.2 (C) 1988
***** Universal Engineering Sciences, Inc. ****

*******A N A L Y S I S OF S T
RI P P I N G T O W E R ******
PROJECT t Former >7-Eleven Store No. 21455 DATE « 6/ ./1995
ENGINEER «' David Preston
PAGE ;' 2/2
LOADING
RATES
Water 'mass loading rate
6.28E-01 lb/ft``2.
Air mass loading rate
2.27E-01 lb/ftA2.
Water volumetric leading rate
4 5 E+00 m/ftA2
Air volumetric loading rate
1.36E+03 /ftA2
Air pressure gradient
c.06 61 H2O/ft #
Volumetric air/water ratio
300.0
Stripping factor
85.4
SS TRANSFER PARAMETERS
Percentage of packing area wetted
33.4 So -
Wetted packing area
16.0 ftA2/ftA3,
Transfer rate constant in water
3.41E-04 t/s
Transfer rate constant in air
2.64E-02 ft/s
Overall transfer rate constant
3.26E-04 ft/s
Overall mass transfer coefficient
5.21E-03 1/
U
10.451
TU «
1.9333 ft
CONTAMINANT REMOVAL
Influent concentration
.70E+02 ug/L,
Effluent concentration
3.48E-02 ug/L
Fraction removed «
100.E SO, -
Mass of contaminant removed
5.26E--0 lb/ft``2.day
Concentration in airstream
9.16E-02-mg/ft"3
Expressed per unit of stripping tower cross -sectional area
Expressed per unit of tower length
AIRSTRIP Ver.
1.2 (C) 1988
***** Universal Engineering Sciences Inc.

* **A N A L Y S I S
OF S T R I P P I N G
T 0 W E R **** *
PROJECT Former 7-Eleven Store No. 21455
DATE : 6/1/1995
ENGINEER : David Preston
PAGE :1/2
PHYSICAL CONSTANTS
Design temperature
70.0 degrees
F.
Density of water
62.3 lb/ft``3
Density of air
0.0749 l/ft"3
Viscosity of water
: 6.57E-4 l/fts
Viscosity; of air
: 1.19E-5 l/ft.s
Surface tension of water
73 dyne/cm
Atmospheric pressure
1.00 atm
CONTAMINANT PROPERTIES
Name
Toluene
Molecular weight
9.2 /mol
Boiling paint
232 degrees
F.
Molal volume at boiling point 0.1132 L/mol
Henry's Constant
0.19000
Temperature Constant
3517 deg K
Molecular diffusivity in
air 9.01E-05 ft''2/s
Molecular diffusivity in
water 5.72E-09 ft"2/s
PACKING PROPERTIES
Name
J`-aeer Tripacks
Packing Material
Plastic
Nominal Size
2.00 inch
Specific Area
47.9 ft" 2/ft-3
Critical surface tension
33 dyne/cm
Packing depth
20.0 ft'
Air friction factor
15
AIRSTRIP Ver. 1.2 (C) 1933
***** Universal Engineering Sciences, Inc. ****

**'**A
N
A
L
Y
S
I
S
OF
S
T
R
I
P
P
I
N
G
T
0
W
E
R * ** *
,OJECT Former 7-Eleven Store No.
21455 DATE ; 6/1./19 5
IGINEER David Preston
PACE # 2/2
LOADING RATES
.ter mass loading rate
6.28E-01 lb/ft-2.
r mass loading rate
2.27E-01 lb/ft-2.
.ter' volumetric loading rate
4.52E+00 m/ft"2
r volumetric loading rate
1.36E+03 /sftA2
r pressure gradient
<.06 11 H20/ft
lumetri air/water ratio
300.0
ripping factor
6.0
SS TRANSFER PARAMETERS
rcentage of packing area wetted
33.4
tied packing area
16.0 ft'"2/ftA3
ansfer rate constant in water
3.59E--04 ft/s
ansfer rate constant in air
2.82E-02 ft/s
erall transfer rite constant
3.38E-04 ft/'s
erall mass transfer coefficient
5.41E-03 Il
CJ
10.7371
1.8627 f
CONTAMINANT REMOVAL
Fluent concentration
4.78 mgL
-2luent concentration
1.21.E-01 ug/L
fiction removed
100.0 t
;s of contaminant removed
2.59E-01 lb/ft-2.dar
icentration in airstream
4.51E-01'mg/ft"3
Expressed per unit of stripping tower cross -sectional area.
Expressed per unit of tower length
AIRSTRIP Ter. 1.2 (C) 1988
** Universal Engineering Sciences, Inc. **�

N A L Y S I S
OF S T RI P P I N C
T 0 W E R
PROJECT Former 7-Eleven Stare No. 21455
DATE : /1/1995
ENGINEER : David Preston
PACE ; 1/2
PHYSICAL CONSTANTS
S
Design temperature
70.0 degrees
F.
Density of water
62.3 lb/ft 3
Density of air
0.0749 lb,/ft"3
Viscosity of water
. 7E-t 4 lb t .
Viscosity of air
. 1,19E-05 lb/ft.
Surface tension of water
73 dyne/cm
Atmospheric pressure
1.00 at
CONTAMINANT PROPERTIES
Name
-Xylene
Molecular weight
106.2 g/mol
Boiling point
280 degrees
F.
Molal volume at boiling paint 0.1404 L/mol
Henry's Constant
0.29000
Temperature Constant
1904 deg K
Molecular diffusivity in
air 8.15E-05 ft"2/s
Molecular diffusivity in
water 7. 7E-19 ft"2/
PACKING PROPERTIES
Name
= Jaeger Tripacks
Packing Material
Plastic
Nominal Sire
2.00' inch
Specific Area
47.9 ft"/ft" 3
Critical surface tension
33-dyne/cm
Packing depth
20.0 ft
Air friction factor
15
AIRSTRIP e'er.. 1.2 (C) 198
* *** Universal Engineering Sciences, Inca ***

#
** * * A N A L P S I S OF S T
R I P,P I N G T O W E R *******
PROJECT , Former 7-Eleven Store No. 21455
DATE . /1;/1 9
ENGINEER . David Preston
PAGE . 2/2
LOADING
RATES
Water mass loading rate
6.28:-01 lb/ft-2.
Air mass loading rate
2.27E-01 lb/f -2. '
Water volumetric leading rate
4.52E+00 m/fA2
Air volumetric loading !rate
1, 36E+03 ' m/ftA2
Air pressure gradient
c.06 r' H20/ft
Volumetric air/water ratio
300.0
Stripping factor
91.7'
MASS TRANSFER PARAMETERS
Percentage; of packing area wetted
3.4'
Wetted: packing; area
16.0 ft"2/ft"3 �
Transfer rate constant ;in water
3.41E-04 t/s
Transfer rate constant in air
2.64E-02 ft/s
Overall transfer rate constant
3.27E-04 t/s
Overall mass transfer coefficient
5.23E-03 1/s
NTU
10.378
HTU
1.9276 ft
CONTAMINANT REMOVAL
Influent concentration
= 4.93 m/L
Effluent concentration
1.70E-01 ug/L
Fraction removed
10.0 0
Mass of contaminant removed m
2.68E-01 b/ftA2.ay
Concentration in airstream
4.66E-01 mg/ft"3
* Expressed per unit of stripping tower crass -sectional. area
Expressed per unit of tower length
AIRSTRIP Ver.
1.2 (C) 198
***** Universal, Engineering
Sciences, Inc. **�

N A L Y S I S
OF S T R I P P I N G
T O W E R
PROJECT z Former 7-Eleven Store No. 21455
LATE z 6/1/1995
ENGINEER David Preston
PAGE : 1/
P S I L CONSTANTS
S
Design temperature
70.0 degrees
F.
Density of water
62.3 l:b/ t-3
Density of air
0.079 lb/t``3
Viscosity of water
; 5.57E-0 l/Et.
Viscosity of air
. 1.19E-05 lb/ Et
Surface tension of water
.
73 dyne/cm
Atmospheric pressure
1.00 atm
CONTAMINANT PROPERTIES
Name
MTBE
Molecular weight
88.1 g/mol
Boiling point
268 degrees
F.
Molal'volume at boiling point 0.0980 L/mol
Henry's Constant
0.02300
Temperature Constant
1904 deg K
Molecular diffusivity in
air 9 66E-0 t" /
Molecular diffusivity in
water 9.75E-09 ft"2/
PACKING PROPERTIES
Name
Jaeger Trpacks
Packing Material
Plastic
Nominal. Size
z 2.00 inch:
Specific Area
47.9 ft-2/ft3
Critical surface tension
33 dyne/cm
Packing depth
20.0 ft`
Air friction facto
15
AIRSTRIP Ver. 1.2 (C) 1988
***** Universal Engineering Sciences, Inc.
* **

�* A N A L Y S I S OF - S T
R I PP I N G T G W E R
PROJECT : Former 7-Eleven Store No. 21455
DATE : 6/1±/1995
ENGINEER : David Preston
PANE : 2/2
LOADING
RATES
Water mass loading rate
5.28E-01 lb/ft-2.
Air mass leading rate
2.27E-01 lb/ft-2.
Water volumetric loading rate
4.52E 00 m/ftA2
Air volumetric loading rate
1.36E+03 m/ft"2
Air pressure gradient
<.06 11 H20/ft #
Volumetric air/water ratio
300.
Stripping factor
7.
MASS TRANSFER PARAMETERS
Percentage of packing area wetted
33.4
Wetted packing area,
16.0 ft`'2/ft"3
Transfer rate constant in water'
3.80E-04 t/s
Transfer rate constant in air
2.96E-02 ft/s
Overall transfer rate constant
2.48E-04 ft/s
Overall mass transfer coefficient
3.97E-03 1/s
NTU
7.8724
HTU
2.5405 ft
CONTAMINANT REMOVAL
Influent concentration =
= 4.58 mg/L
Effluent concentration
4.43E+00`ug/L
Fraction removed
99.9
Mass of contaminant removed
2.49E-01 lb/ftn2.day
Concentration in airstream
4.32E-01-mg/ftA3
* Expressed per unit of stripping tower cross -sectional area
Expressed per unit of tower length
AIRSTRIP Ver.
1.2 (C) 1988
*** Universal Engineering Sciences, Inc'. ***

APPENDIX g-1

4. E 6.
Appendix B-1

APPENDIX B-2

APPENDIX -

AIR -STRIPPER DESIGN SUMMARY
Former 7-Eleven Store No. 21455
51 Freedom drive
Charlotte, North Carolina
Designed Hydraulic Flow Rate 8 gpm
Air Flaw Rate 321 cfm
Air -to -Water Ratio300:1
Tower Diameter 1.5 'feet
Tower Height 25 feet
Packed Column Height 20 feet
Packing Media -inch Diameter Jaeger Tri-packs

APPENDIX 1 -4

BLOWER SIZING SPECIFICATIONS
PROJECT: Farmer 7-Eleven Store No, 21455
U S PROD, NO.: 15081- 6-ot
2501 Freedom Drive
ENGINEER. David Preston
Charlotte, North Caroline
CRATE: 03/13/95
CLIENT: The Southland Corporation
Pressure Drop (inches per foot of packing)
0.06
Air/Water Ratio
300
Stripper Design Flow Capacity (gpm)
(cubic ft/ in.)
1.07
Required Air Flow Rate (CFM)
321
Packing Height (feet)
Total Static Pressure on Blower
1.
Blower Selected
Fan Type: New Yarn Blower
Model 125 FIB
Curet Drive
Motor . 112 Hp
RPM: 1750
Performance Range
Static Pressure CFM
0.51, 631
1.4" 54
1.5" 449
2.0" 313
Nate An outlet damper will be installed to control the
air flowrate.

on
WE
S1

DIRECTDRIVE PERFORMANCE CURVES --- 1750
b
CURVE ELECTION EXAMPLE: Select a fan for 850 CFM at "SP. See dotted lines on lower graph, After
locating point on grid for 850 CFM at 2"SP, follow direction of background system curves to intersection with fan
performance curves In this system example, a Size 146 will deliver 875 CFM and 2r1"SIP with approxlmately,.67 SHP,
SIZES,, ,10 ,12
3
yygr
104
yv yY
Uj
.05 BHPCc
J�CL
LU
1
CL
a02 * Y.t v
V
00
(ff
100 200 300 400 500 6W 700 800
0
SIZES 1061116112611361146
4
.20 BHP .30 4
Lu
3
« Y
I
.20 HP 30
u,l
r10 E1HP
2
'1 7
` .10 HP
5.
r05 BHP
� s
CJ7
00
c
8
.i0 �300 _
200 400 500 600 700 800 900 1000 1100 1200 1300 1400
= FM
DIRECT -DRIVE CAPACITY TAL AT 1750 RPM
Model
rlor
HP
Inlet outlet "SP WISP )("SP rap IWSP P 3"SP
d1a. area
OR iq' I Cr* (N ills OV iM1r OM SHP OV IMP 1 M OV or SHP OM for
85 E8
4
5 103 243 2360 06 197 1910- 05 1e8 1440 04 86 8e0 03
95F8
4i
6 126 342 2710 10 296 23$0 09 241 1 08 192 1520 .07
105fi
4i
6 226 eat 3190 15 362 2870 le 321 2550 1376 2190 11 171 1360 OS
106 No
125 H
41
;1
6 203 583 2970 : 20 521 2570 18 e56 2250 .16 391 193E 1d 249 1230 10
7 158 672 8250
116 Hi
126 H8
4a
33 631 31 $90 3730 30 $48 3870 .28 e9a 28e0 23," 313 1 17
7 255 8e5 3310 3e 777 3050 32 709 2780 30 638 2 , 27 490 1 21 2e7 970 1e
8 255 1013 3970 67 9ee 37W el $76 3440 e1
13610
$03 1150 39 652 2560 33 414 1960 26
8 293 1115 8010 69 111e 3800 66 1051 3590 63 98e 1360 60 8e9 M 5e 712 2e 3 e7 336 1180
1e6 18
1
.28
8 293 1321 e510 90 1263 4310 " 87 12og 4130 84 1l52 3930 81 1029 3510 15 9W 3010 68 640 2180: 5e
Performance shown is for Compact GI Fans with inlet and outlet ducts.
PACE

APPENDIX >B-5

TOP OF MIST ELIMINATOR
1[
TOP OF PACKING
PAC
.err 20'
25,
SECTION
MAGNAHELIC GAUGE
VIEW
PORT
(-)
TOP OF PACKING
INFLUENT
SUPPORT PLATE
SAMPLING
PORT
HIGH WATER
FLOAT SWITCH
DAMPER
EFFLUENT SUMP
DISCHARGE
-- SLOWER
AIRSTRIPPER DESIGN SPECIFICATIONS:
NOT TO SCALE
DESIGN FLOW RATE:
8 GPM
AIR--TO-WATER RATIO.
300
AIR FLOW RATE:
31 CF
± 1 i`'' .a S
TOWER DIAMETER.
1.5 FT.
#' t
ja
a
TOWER HEIGHT:
25 FT.
r
w
PACKING HEIGHT:
20 FT.
x
PACKING MATERIAL.
" JAEGGER TRIPACKS
e
CORRECTIVE ACTION PLAN
7-ELEVEN N STORE NO. 21455
2501 FREEDOM DRIVE
CHARLOTTE, NORTH CAROL.INA
AIR STRIPPER CROSS-SEC11ONAL. DETAIL
UNIVERSAL
X
ENGINEERING SCIENCES DRAWN BY:
E.C.J. DATE: 5, 12 OHECKED SY.
DATE:
SCALE:
AS SHOWN PROJECT NO: 1 081 ^-3.36-01 REPORT NO: 47824 PAGE NO: �.5

APPENDIX -

"
• +
IM •
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mom
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•
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ONE
MAX. OPETi C
PRESSURE: 10 psi
C R "Y'R V 1 Riverside Avenue, Westport, CT 06880.1- 00- 42-1'1 0 0 ( 0) -5 4
ORPO R ,A.T 1 0
Copyright 1991 C rrbtrol Corporation - 51 4 AT- oof#2
Pegg 1

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.�,._ __ tee.
.��_

FF
Q
& w w
0
z ,-
cx�co
Q
co 8
DUAL EXTRACTIONWELL (RW-3)
BLOWER
s �
INFLUENT SAMPLING PORT
DUAL EXTRACTION WELL (RW - )
9
2 1
AIR OWEPR DUAL EXTRACTION WELL (Rw-1)
EFFLUENT 'SAMPLING PORT C3 LU
a.
cc tJ a
CARBON ADSORPTION DRUMS 1
OIL/WATER SEPARATOR U EC
¢
TOTALIZING FLOW METER LINE FROM AIR/WATER SEPARATOR W � W Z
(VACUUM EXTRACTION SYSTEM) Z CC b
TRANSFER PUMP 1 I ' tri_
to
� C4
TO STORM DRAIN p Llj
U <t
syMBOLS LEGEND
LEGEND 0
1"" INFLUENT PVC LINE
3 4" ELECTRICAL CONDUIT FOR PUMP CONTROL PROBES NECK VALVE'
1°° INFLUENT PVC 1'RUNKI.INE
1/'2" CONDUIT FOR BLOWER FAIL-SAFE CONNECTION BALL VALVE
1 /2" CONDUIT TO SUMP FAIL—SAFE CONNECTION FLOW METER
MAIN POWER JUNCTION BOX — FROM BREAKER BOX
Y--STRAINER
SYSTEM CONTROL BOX 2" EFFLUENT PVC PIPE
71
FLOW DIRECTION d^ r -
1/2" ELECTRICAL -CONDUIT TO CONTROL BOX
UNIVERSAL
Al ENGINEERING SCIENCES
k
k
PA -7

gIn
'
ozx
3
MOSS N
}
t
{

APPENDIX G-1

4
r-, will be constructed of 3.5-feet of solid
:o 25 feet of 0.010-inch wire wrapped PVC`
a submersible pump) and will be installed'
ck will be placed into the annular space
uce clogging of the well slots and also
all. A 1-font thick bentonite seal will be
Cetails for recovery wells R-1 and I-,
)e fully developed by a pump and surge
d in drums for subsequent treatment
I is constructed of 5-feet of solid 4-inch
--et of 0.010-inch PVC screen installed to
metr large enough to accommodate a
fiction: The well completion log for IW-
ns of the three dual extraction wells and
the treatment compound are presented in Appendix C-4.
Appendix C-

*
* UNIVERSAL ENGNEE
WELL. DE
[ENT, TIDE SOUTHLANO CORPORATION
'-*"*IENCES
WELL. NUMBER: R -1 AND RW--2 LOCATION. REFER
WELL DIAGRAM - N+
T TO SCALE
- - . ' x ,5' SQUARE TRAFFIC MAN AY
EXISTING PAVEMENT
CEMENT GROUT
.5
RISER - TYPE SH. 40 PVC
SIZE " OIA.
BENTONITE SEAL
2&5'
S SEEN -TYPE SCH. 40 PVC
SIZE " DIA.-O.010" SLOT
FILTER TYPE 20 '. 0 SILICA SAND ,
, �"�
r

UNIVERSAL ENGINEERING SCIENCES PROJECT NO.: , 081-33 —0t
WELL. COMPLETION LOG
REPORT NO.: 47824
PAGE NO: C-3
PROJECT: CORRECTIVE ACTION PLAN, 7—ELEVEN STORE #21455 2501 FREEDOM DRIVE, CHARLOTTE NORTH CAROLIN.
CLIENT: THE SOUTHLAND CORPORATION DATE: 521I1
WELL NUMBER; RW--3 MW-3 LOCATION: REFER 7O RECOVERY SYSTEM LAYOUT PLAN
WELL NUMBER: GROUNDWATER TECHNOLOGY, INC.
WELL DIAGRAM - NOT TO SCALE
2.5' x' a " SQUARE 'TRAFFIC MAN AY
EXISTING PAVEMENT
THREADED WELL CAP
CEMENT GROUT
5' RISER TYPE SCH. 40 PVC
SIZE 4" DIA.
ENTONITE SEAL
0.O'
1'
SCREED! — TYPE SCH. 40 PVC
SIZE 4" DIA. O. }10`° SLOT
a + xt
s
. t i
FILTER TYPE 20 30 SILICA SAND �
„
4
a 1 '

fi
GRASS`+
c�
gyp/
MW-3/Rw—,2r" GRASS
P
TPITX CANOPY
GRASS VMW—$\ >—lFF MW—
`• , o -t
M � � RW--1 OMW-4 GRASS
DROP INLET
STORE *� �
W—'
TREATMENT i
'EQUIPMENT
COMPOUND tD"xGRASS
»"
�I
LEGEND
.� ti
Q MONITORING WELL Lt CA7ION
4' VERTICAL DEFINITON "MONITORING WELL LOCATION
{ " " DUAL EXTRACTION WELL
HORIZONTAL VAPOR EXTRACTION WELL
C! VER7ICAL VAPOR EXTRACTION WELL ..
D" 20' 40'
NOTE. THIS PLAN TAKEN FRnM Pt AN aanwnrn :AY aw ICMT
.`' * •
x •� a
MOMw a

Kg low
m OWN

APPENDIX D-1

Appendix D'-1

APPENDIX -

DUAL EXTRACTION WELL PUMP SELECTION
PROJECT: Former 7-Eleven Stare No. 21455
UE3 PROJ, NO.:
1 081-33 1
2501 Freedom Drive
ENGINEER:
David Preston
Charlotte, North Carolina
DATE:
03/13/95'
CLIENT; The Southland Corporation
Factors considered in pump selection
1) System Capacity & Head Requirements
) Cost of Equipment
3) Cost of Installation
4) Operating Cast
5) Maintenance & Service requirements
Data Requirements
Total Pumping Head required
RW-1
62.51
feet "
RW-2
62.03
;' feet
RW-3
53.77
'feet
Well Diameter:
RW-1 and R-2
5;
inches
RWM3
4
inches
Flow capacity required (each well)
R -1 and RW-2
1.5
gpm
RW-3
1
gpm
Pump Selection
Grundfos Ft dl-Flaw
Submersible Pump Model 5 03-9 (1/3 hp)
From the performance curve
Flaw Rate Available Head Excess Head
Excess Head
Excess Head
(gpm) (feet) RW-1 (feet)
RW-2 (feet)
RW- (feet)
1 250 187.5
188.0
196.2
1.5 242 179.5
180.0
18&2
2 240 177.5
178.0
186.2
.5 231 168.5
169.0
177.2
3 221 158.5
159.0
167.2

APPENDIX D-3

PiP6NC TRENCH �'
I—I*;PVC INFLUENT LINE PIPING TRENCH
1-3' PVC VACUUM LINE I —I' PVC INFLUENT LINE
1-3' PVC VACUUM LINE'
1-2' PVC EFFLUNT LINE
GRASS'
4
0
PIPING TRENCH P� MW �Jy
1--1* PVC INFLUENT LINE g�t�N {s ue EXTENT OF
1-3" PVC VACUUM LINE p {{TANK � CONTAMINATED
1-2' PVC EFFLUNT LINE { PIT SUE-1 GRASS SOILS
MW-3 6 -
{{
\ r{ s PIPING TMENQi
RW� 2 CANOPY I-3' PVC VACUUM LINE
•C, a
YYWp� { f
YiYW_GRASS
-
{{ RW-1 MW-9
M W— 7 VV GRASS
{{ STORE \
REFER TO \
DETAIL 'B' \ p
DROP INLET
C3W J pp�c+
TREATMENT VP
OUIPMENT ( "
COMPOUND
10'x15'. GRASS j
r
PIPING TRENCH
1-1- PVC INFLUENT LINE
I—Y PVC VACUUM LINE
LEGEND <; ° � E
0 MONITORING WELL LOCATION
U VERTICAL DEFINITON MONITORING WELL LOCATION I
66AL EXTRACTION WELL
HORIZONTAL, VAPOR EXTRACTION WELL
VERTICAL VAPOR EXTRACTION WELL t ,'
0. 20° 40`
NOTE. THIS PLAN TAKEN FROM PLAN PROVIDED BY CLIENT
CORRECTIVE ACTION PLAN
7-ELEVEN STORE NO. 21455
2501 FREEDOM ©RIVE
CHARLOTTE, NORTH CAROLINA
PIPING TRENCH LAYOUT
UNIVERSAL
ENGINEERING SCIENCES DRAWN BY: E.C.J. DATE: 4 f 9% 5 CHECKED 8Y„ DATE:
SCALE: AS SHOWNPROJECT M 15081--336-01 REPORT N0: 47824 PAGE NG., p-

APPENDIX D-4

f
3" PVC VACUUM PIPE,
1,0" PVC INFLUENT PIPE
2" PVC EFFLUENT PIPE
ASPHALT PAVEMENT
BASE COURSE
18"-24" 12"
6 - /4" ELECTRICAL CONDUITS
CC C 00
NATIVE SOIL BA KFILL
COMPACTED TO MIN. 95
MODIFIED PROCTOR MAX.
DENSITY (ASTM D-18 a7)
SEC I I —At
NOT TO SCALE
GROUND SURFACE
FLOW METER STORM INLET BOX
2" PVC EFFLUENT PIPE 1
1
f
a �
e
AjA I d
L i�t
NOT TO SCALE
CORRECTIVE ACTION PLAN
-ELEVEN STORE NO.21455
r 2501 FREEDOM DRIVE
CHARLOTTE, NORTH CA OLI A
UNIVERSAL
PIPING AND STORM SEWER CROSS -SECTIONAL VI C}ETAILS " ` ANp 'B')
ENGINEERING SCIENCES DRAWN M E.C.J. DATE; 4/9 95 CHECKED BY. r�' DATE; Ole 5j
IS : AS SHOWN PROJECT NO: 1; 081— 36-01 REPORT NO': 478j4j PAGE NO. 'D-4

h
4 tx
}
}
t kk
h ;
4 x
� :. � ""x"�4 k t• �.. x r :: "^ h "� �' � � � � ht� k : a *, ;o- } t.. t k r xx �� t k � k
p
S R L• .1 �} t.' S^` � i. "v '{^ } Yh '�, '+ 3` x <+44 '� v'
�* k
� }. ,v,,.f., S :t "^. •'v k �"'• {` '`` 4 � "c h � '.} 's. k k {� 4�P+ 4 �. { t '�, 'k't {or t, '° '+. ,,�}
8
t
t t a <
t `
......... .a.....; , ,,,,

APPENDIX F-1

sump rises above the allowable elevation.
Appendix E-

APPENDIX -1

10Sampling parts will be installed on bath the influent and effluent lines of the air -stripper
to allow collection of required water duality samples.
Appendix F-1

�w rw
w
r
w
z r w r
w
r
y w
w
wy4 r w zw.. � w�,�w"-•�.i wr,� }`�w�` �'y rt:. s w r w c h z ,� t w r ww� �w w ��.�
r�.y, ,�,: Fi � t k �'$ �} w : z•z �,�; t �'" t w w, z � y ,� ?d '`.,�.. �s
�t `� F r'.. �z', s�.. �' ,w w. r�. '` t.. *•�'r„r ., +. }. � w w r w w"r w w +. ,�:
: ry r •g�' vxww `� aw z,? t w ww az '� � z : ,w, v` r w t.,n.
✓ .t w �' e� t� '' t.* t w`"M t f z � w +`.' w t^s w w a } :. < �, •�' `� r w� '` r� 2+5 ; kz t
r

a
a
t t
} a
A ANT
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8.
UES has decided to dispose the tri
viable and cast -effective compared
subsurface disposal, or spray irrig
potential of the gallery failure.
A
fluent into the storm drain. This option is most
wr options such as disposal to a sanitary sewer,
iitary sewer is not a feasible option since the City