NCG510539_Permit Issuance_20130927

A
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Water Quality Programs
Pat McCrory Thomas A. Reeder John Skvarla, III
Governor Director Secretary
September 27, 2013
John Donnelly, Regional Manager
Salmon Family Companies
407 Norwalk Street
Greensboro, North Carolina 27407
Subject: Certificate of Coverage (COC) NCG510539
Under General Permit NCG510000 for the
Mail Contractors of America, Inc.
Groundwater Remediation Site GW-REM)
717 Camann Avenue, Greensboro
Guilford County
Dear Mr. Donnelly:
General Permit Coverage. In accordance with your Notice of Intent (NOI) as application to
discharge treated groundwater contaminated with fuel hydrocarbons, the Division of Water
Resources (DWR or the Division) hereby forwards this Certificate of Coverage (COC) to discharge
under the subject NPDES general permit. We issue this COC pursuant to the requirements of North
Carolina General Statue 143-215.1 and the Memorandum of Agreement between North Carolina and
the US Environmental Protection Agency (USEPA) dated October 15, 2007 (or as subsequently
amended).
The following information is included with your permit package:
■ A copy of the Certificate of Coverage for your treatment facility
■ A copy of General Wastewater Discharge Permit NCG510000
■ A copy of a Technical Bulletin for General Wastewater Discharge Permit NCG510000
■ Engineer's Certification, to be signed and returned to DWR upon completion
The Division understands from your Notice of Intent (NOI) to discharge, received August 6, 2013,
that you have contracted as consultant the engineering firm Duncklee & Dunham, P.C. of Cary, NC.
We also note that this site is under Initial Abatement Action, as overseen by Carin Kromm of
DENR's Winston Salem Regional Office (WSRO) and Sharon Cihak of Guilford County.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service:1-877-623-
6748
Internet: www wwatemualitv.oro
One
N&Marolina
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Future reporting compliance under this COC shall compare all analytical results to Surface Water -
Quality Standards appropriate to a receiving -stream classified Water Supply (WS-V), nutrient -
sensitive waters [NSW]. We note that site -assessment analytical data (collected June 26, 2013)
affirms your assertion that diesel fuel is a source of site contamination, and that chlorinated solvents
do not appear to be parameters of concern in the subsurface. If chlorinated solvents are detected in
the future, you must apply immediately for an individual NPDES permit.
Based on the above, effluent monitoring shall comply with General Permit Part 1, A. (2.) as
parameters and limitations related to diesel fuel and similar fuel hydrocarbons. Monitoring Tables A.
(L) and A. (3.) do not apply at this time.
At no time shall treatment -system operators allow contaminated (untreated) water to discharge to
surface waters of the State. At no time shall treated water discharge such that sediment is transported
and/or erosion occurs. The Measurement Frequency "Monthly Flow" is defined as total treated
effluent not -to -exceed one million gallons (1.0 MG) per month. This assumes that the system utilizes
a totalizing flow meter (or equivalent method) to determine and record total flow, and records will
be maintained in accord with the General Permit.
In accordance with your application for discharge and Corrective Action Plan (CAP), the Division
understands you propose to construct and operate a groundwater remediation system consisting of:
• groundwater extraction well with submersible pump
• 5-micron bag filter [land -fill disposed offsite]
• two (2) each liquid -phase, 200-pound carbon absorption vessels [in series];
initial breakthrough 100 days; secondary breakthrough 260 days
• ball valve sample port
• effluent discharge line [1-inch diam] with flow meter
• outfall to storm sewer [8-inch diam]
The above treatment works, located at the Mail Contractors of America Groundwater Remediation
(GW-REM) Site, 717 Camann Avenue. Greensboro, will be installed and operated in accord with your
discharge application, Notice of Intent (NOI), and as described on your schematic and Site Plan
[Figures 1, 3 and 4]. Treated groundwater shall discharge under receiving stream zero -flow
conditions (7Q10 and 30Q2 = 0.0 cfs) ultimately to an unnamed tributary (UT) to South Buffalo
Creek [Stream Segment 16-11-14-2], a waterbody currently classified WS-V; NSW within Subbasin
03-06-02 of the Cape Fear River Basin, as documented on the attached Site Map.
In the event that treatment facilities fail to perform satisfactorily, to include creating nuisance
conditions, the Permittee shall take immediate corrective action, including those actions as may be
required by this Division, such as the construction of additional or replacement wastewater treatment
or disposal facilities. Failure to abide by the requirements contained in this ATC may subject the
Permittee to an enforcement action by the Division of Water Resources in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
Please notify Carin Kromm of the Division's Winston-Salem Regional Office (WSRO) by telephone
336-771-5000 at least three (3) working days in advance of operating the treatment -system so that he
may determine the need for final inspection requirements. Please contact WSRO during the normal
office hours from 8:00 a.m. until 5:00 p.m. Monday through Friday, excluding State Holidays.
NPDES Permit Contact. If you have questions concerning the requirements of this permit, please
contact the RRO or Joe R. Corporon, L.G. of the NPDES Unit, Raleigh at 919-807-6394.
Page 12

If any parts, measurement frequencies or sampling requirements contained in this general permit are
unacceptable, you have the right to request an individual permit by submitting an individual NPDES
permit application. Unless such demand is made, the certificate of coverage shall be final and
binding.
Please note that this COC is not transferable except after notice to the Division of Water Resources.
The Division of Water Resources may require modification or revocation and reissuance of the
certificate of coverage. This permit does not affect the legal requirements to obtain other permits
which may be required by the Division of Water Resources or permits required by the Division of
Land Resources, Coastal Area Management Act or any other Federal or Local governmental permit
that may be required.
racer ly,
r G 2
Thomas A. Reeder
bc: NPDES General Permit Files
DWR/WSRO, Attn: Cory Basinger, Surface Water Protection Section
ec: WSRO/SWPS Attn: Carin Kromm
Duncklee & Dunham, P.C, Andy Rodak P.E.[[e-mail]]
DWR
Otfthm of Water Emour"s
Page 13

[This page intentionally left blank]
Page 14

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
CERTIFICATE OF COVERAGE - NCG510539
Under GENERAL PERMIT NCG550000
TO DISCHARGE TREATED GROUNDWATER, AND SIMILAR WASTEWATERS
GENERATED DURING REMEDIATION OF SOILS AND GROUNDWATER IMPACTED
WITH PETROLEUM FUEL HYDROCARBONS
UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Mail Contractors of America, Inc.
is hereby authorized to install and operate wastewater treatment facilities consisting of a
groundwater pumping well, bag filter, carbon filters, sample ports, appurtenant piping to discharge
outfall, for the treatment of contaminated groundwater; facilities located at the
Groundwater Remediation Site (GW-REM)
717 Camann Avenue, Greensboro
Guilford County
discharging to receiving waters designated as the unnamed tributary (UT) to South Buffalo Creek [stream
segment 16-11-14-2], a waterbody currently classified WS-V; NSW within Subbasin 03-06-02 of the
Cape Fear River Basin, in accordance with the effluent limitations, monitoring requirements, and other
conditions set forth in Parts I, II, III and IV of General Permit NCG510000, as attached.
This certificate of coverage shall become effective September 27, 2013.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day September 27, 2013
iAa� A. Reeder, Director
ision of Water Resources
Authority of the Environ
Management Commission
Page 15

Date: q Z;z. 712 013
16I7 Mail Service Center,:Raleoh, north CaroliMA27699-1617
Location- 512:N. Sallsbwy St fei�qh, N6rth Carolina 27604
Phone: [phone] \ PAX: 91,9"c307-6492 Cusbner Service: 11-877-62W48
Internet: wsw.ncwatemrwurce&om An Equal Opportunity k.Affirmahve Adfion Empyer

Corporon, Joe
From: Hudson, Eric
Sent: Friday, September 27, 2013 2:28 PM
To: Corporon, Joe
Cc: Edwards, Lisa
Subject: RE: DRAFT Mail Contractors of America, Inc - GW-REM General Permit COC NCG510539
Attachments: Reivew of Discharge.pdf
Joe,
I reviewed the draft permit and the proposed discharge is not located sufficiently close to any public water
supply intake. The PWSS concurs with the issuance of the permit.
Eric
Eric Hudson, P.E.
Assistant Regional Engineer
NC DENR Winston-Salem Regional Office
Division of Water Resources, Public Water Supply Section
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]
[e-mail]
http://www.ncwater.org/pws
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is
exempt by statute or other regulation.
From: Corporon, Joe
Sent: Friday, September 27, 2013 9:59 AM
To: Andy Rodak
Cc: Hennessy, John; [e-mail]; Hudson, Eric
Subject: RE: DRAFT Mail Contractors of America, Inc - GW-REM General Permit COC NCG510539
Andy— per your instructions (see attached re -draft). I have edited page 1 to reflect "Initial Abatement Action;" edited
page 2 [clarified paragraph 3 and corrected paragraph 4]. 1 have also updated the document to reflect WSRO contact
info. Notice I have taken steps to secure approval from Eric Hudson [Public Water Supply Section (PWSS/WSRO)] for
discharge to WS waters.
This will be dated and signed by my supervisor, John Hennessy, if not today, likely early next week.
Thanks again for your patience.
Respectfully,
Joe R. Corporon, L.G. ROC
Expedited Permitting Compliance and Enforcement Unit

MASAin G+Vigil R — Division of Water Resources
NCDF.NR/ NPDES Program / Surface Water Protection Section
919-807-6394; FAX [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to
third parties.
From: Andy Rodak[mailto:andy(@dunckleedunham.com]
Sent: Tuesday, September 24, 2013 3:25 PM
To: Corporon, Joe
Cc: Tom Dunham`
Subject: RE: DRAFT Mail Contractors of America, Inc - GW-REM General Permit COC NCG510539
Joe:
We have reviewed the draft permit, and offer the following requests for clarification/correction:
1. The third paragraph on the first page states that "We also note that your Corrective Action Plan (CAP) is under
review by NCDENR's UST Section, Raleigh Regional Office". As stated in Section 4 of the NPDES Permit
Application, the facility does not have an approved CAP; in fact, a CAP has not been submitted for this site
yet. The site was assigned a Groundwater Incident Number by NC DENR following initial notification of a
release, and is currently under an Initial Abatement Action and assessment. Although no formal report has been
prepared and submitted to NC DENR yet, Carin Kromm of NCDENR's Winston-Salem Regional Office and
Sharon Cihak of Guilford County have been made fully aware of the Initial Abatement Actions at the site, and an
Initial Abatement and Assessment Report will be submitted to NC DENR.
2. The last sentence of the third paragraph of page 2 states "This assumes that the system utilize a totalizing flow
meter (or equivalent method) to determine and record total flow, and report this value on quarterly Discharge
Monitoring Reports (DMRs). It is our understanding in reviewing NC DENR's Technical Bulletin for General
Permit NCG510000 that "the submission of monitoring reports for this permit is not required. There are no
standardized DMRs associated with this permit. All monitoring results should be kept on site for three
years." Please clarify.
3. The specifications for the groundwater remediation system, as listed in the draft permit, are inaccurate. As
indicated on Figures 3 and 4 of the permit application, effluent from the system will be discharged through a f-
inch PVC pipe equipped with a flow meter. The pipe will connect into an existing 8-inch PVC storm sewer pipe
on the site that will transfer the flow offsite. Please correct.
Please address these request for corrections/clarifications to the permit prior to finalization.
Thanks,
Andrew M. Rodak, P.E.
Senior Engineer
Duncklee & Dunham, P.C.
511 Keisler Drive
Suite 102
Cary, North Carolina 27518
[phone] (o)
[phone] (m)

www dunckleedunham.com
From: Corporon, Joe [mailto:[e-mail]]
Sent: Tuesday, September 24, 2013 9:07 AM
To: Andy Rodak
Subject: RE: DRAFT Mail Contractors of America, Inc - GW-REM General Permit COC NCG510539
Andy— submitted the attached for review to my supervisor this morning. Also awaiting confirmation/approval for
discharge to Water Supply (WS) waters from Winston-Salem Regional Office (WSRO) — usually they turn this around in a
couple of days.
...we've entered the "home stretch."
Please advise if you see any glaring errors.
Respectfully,
Joe R. Corporon, L. G. ROC
Expedited Permitting Compliance and Enforcement Unit
DWR .
W%bo of krl— Division. of Water Resources
NCDENR/ NPDES Program / Surface Water Protection Section
919-807-6394; FAX [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to
third parties.
From: Andy Rodak[mailto:[e-mail]]
Sent: Monday, September 23, 2013 3:12 PM
To: Corporon, Joe
Subject: RE: Mail Contractors of America, Inc - GW-REM General Permit COC NCG510539
Thank you, Joe.
Andrew M. Rodak, P.E.
Senior Engineer
Duncklee & Dunham, P.C.
511 Keisler Drive
Suite 102
Cary, North Carolina 27518
[phone] (o)
[phone] (m)
www.dunckleedunham.com
From: Corporon, Joe[mailto:[e-mail]]
Sent: Monday, September 23, 2013 2:49 PM
To: [e-mail]
Cc: Hennessy, John
Subject: Mail Contractors of America, Inc - GW-REM General Permit COC NCG510539

Mr. Andy Rodak — I received your phone message asking about the permitting status for the subject site. I have just
recently made some progress on the review process. I see no obstacles so far. I hope to get this off my desk today or
tomorrow, and may issue the COC this week, pending review time.
Thanks again for your patience with our review backlog.
Respectfully,
Joe R- Corporon, L. G. ROC
Expedited Permitting Compliance and Enforcement Unit
DWR
WSW of Wutr usova.." Division of Water Resources
NCDENR/ NPDES Program / Surface Water Protection Section
919-807-6394;FAX [phone]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to
third parties.
4

Cape Fear River Basin
Name index Number Classification Class Date
Description Special Designation
Six Runs Creek 18-68-2-(0.3) C;Sw 04/01/59
_ -- --...------ ._.._.._.-.....--------_-__""--------- - ---- ----- -.--...-.--------- -------._..._...............------- ...--- _......_.._... , - -----------._...._-------- -
(From source to Quewiffle Swamp
Six Runs Creek 18-68-2-(11.5) C;Sw,ORW:+ 06/01/94
;From Quewiffle Swamp to Black River j 15A NCAC 026.0225 (e)(9)
Skipper Hill Branch 18-66-6-2 C;Sw 04/01/59
-....................... -_----- -- -- - - - - -- -- __ ----- -------
m
;Frosource to Double Run
--- ----- - --- -- _ ------------- -- - --------- - ..... - - --- - --- --- -- - - ----- --------- - ---.J - - -- - --- - -- -
Skunk Creek 17-40-1 C 03/01/77
;From source to Big Buffalo Creek
Slash Branch 18-23-16-6-1 WS-III 08/03/92
;From source to Roundabout Branch -- — — j
Smith Branch 18-20-31 WS-IV 08/03/92
;From source to Upper Little River
Smith Branch 16-11-11 WS-V;NSW 08/11/09
.....-.--- .�. -- ----- - -------- ---- - -- -- --__ - ---- -- ----._.... — - _- _ - ----- - - --
From source to - Reedy Fork
.._..._...... -._..._._.._._..._...._._..._.__._._____.............. .... ....... ........... _.-...._._.__..---..._..... -.-... .... ___....................... _.._.................. ..................................._._._.... ... _._............. ..... ............... ...................................
_.._:
Smith Creek
From source to Northeast Cape Fear River
18-74-63
C;Sw 09/01/74
Smith Swamp (Jones Lake Drain) 18-46-7 C 09/01/74
....... -... --....._._._...._.._._._....----.... ---_ --......---- -------- - ---_ --- --- -- -- _-------...---._..
From Jones Lake to Turnbull Creek
Smiths Creek 17-34 WSW 08/03/92
;From source to Deep River
Smiths Mill Pond Run (Smiths Mill Pond) 18-68-12-14 C;Sw 07/01/73
--- - -_ ._..............-------- --._._._._.-...-- ----------- _ — ------ _ ._.... ------.... --..... _.---...-...--- - ., ; --- ------ ------ - ---
;From source to South River
Smokehouse Creek 18-88-11 SC;HQW 08/01/90
;From source to Cape Fear River — — --
Snows Cut 18-87-31.S Sc 08/09/81
;From Carolina Beach Yacht Basin to Cape Fear River
Snows Marsh 18-88-2 SC 08/09/81
;Entire Marsh I
South Buffalo Creek 16-11-14-2 WS-V;NSW 08/11/09
From source to Buffalo Creek
South Fork Cane Creek 16-28-5 WS-V;NSW 08/11/09
._._..-- --
;From source to Cane Creek -
i
Thursday, February 09, 2012 Based on Classifications as of 20120208 Page 81 of 98
c(,

i
NCG510000 N.0.1.
h
f _
iii) Pounds of carbon in each unit: 200
iv) Specify carbon breakthrough time: Lead adsorber: 100 days Lac adsorber: 260 days
(The method used to calculate breakthrough time must included in the submittal.)
d) If filters are used, please provide the following information:
i) Rated flow capacity of each unit(s) (in GPM): 5
ii) Arrangement of particulate filters within the system: ❑ parallel ❑ series
e) Solids disposal method: Spent carbon will be sent off -site for re-Qeneration. Spent filter bags will be
discarded as municipal waste.
f) If other components to be included, please specify:
9) Receiving waters:
a) What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility
wastewater discharges into? If the wastewater discharge is to a separate storm sewer system (4S),
name the operator of the 4S (e.g. City of Raleigh). TZ Osborne WRF�Little Buffalo Creek _
b) Stream Classification (i.e. WS-IV, C, SA, etc): WSJ NSW ) jr�%C�- .
10) Alternatives to direct discharge: l ✓� I r
Address the feasibility of implementing each of the following non -discharge alternatives: 4Ar-
n:
a) Connection to a Municipal or Regional Sewer Collection System
b)' Subsurface disposal (including nitrification field, infiltration gallery, injection wells, etc.)
c) Spray irrigation
The alternatives to discharge analysis should include boring logs and/or other information indicating that
a subsurface system is neither feasible nor practical as well as written confirmation indicating that
connection to a POTW is not an option. It should also include a present value of costs analysis as
outlined in the Division's "Guidance For the Evaluation of Wastewater Disposal Alternatives",
11) Additional application requirements:
For new or proposed discharges, the following information must be included in triplicate with this
application or it will be returned as incomplete.
a) 7.5 minute series USGS topographic map (or a photocopied portion thereof) with discharge location
clearly indicated.
b) A site map clearly tracing the pathway of the discharged water from the site to its discharge point, if
the discharge is not directly to a stream.
c) if the discharge will cross or empty into any easements, right-of-ways, or other public/private
property, i.e. DOT, utilities, ditches, etc., before entering the permitted discharge stream, proof that
approval was received from the appropriate " landowners and/or agencies must be provided prior to
issuance of the permit.
d) If this application is being submitted by a consulting engineer (or engineering firm), include
documentation from the applicant showing that the engineer (or firm) submitting the application has
been designated an authorized representative of the applicant.
e) Final plans for the treatment system (if application is for a new or modified permit). The plans must
be signed and sealed by a North Carolina registered Professional Engineer and stamped -"Final
Design -Not released for construction".
Page 3 of 4 04105

NCG510000 N.O.I.
f) Final specifications for all major treatment components (if application is for a new or modified permit).
The specifications must be signed and sealed by a North Carolina registered Professional Engineer
and shall include a narrative description of the treatment system to be constructed.
g) Site map identifying the location of the monitoring wells, the recovery wells, and the treatment system
unit.
h) Analytical monitoring data which sufficiently characterizes the type and concentration of contaminants
on site. This includes a listing of any chemicals found with the maximum observed concentrations
reported. The data provided must be no older than one year prior to the date of this application. At a
minimum, the following parameters must be reported: Benzene, Toluene, Ethylbenzene, Xylene,
Lead, Phenol, MTBE, and 1,2-Dichlorethane_
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing: uti
Title:
(Signature of Applicant) (Date Signer!)
North Carolina General Statute 143-216.6 8 (i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application,
record, report, plan or other document filed or required to be maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, or who falsifies, tampers with or knowingly
renders inaccurate any recording or monitoring device or method required to be operated or maintained under
Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be
guilty of a misdemeanor punishable by a fine not to exceed $25,000, or by imprisonment not to exceed six
months, or by both. (18 U.S.C. Section 1001 provides a punishment by a fine of not more than $25,000 or
imprisonment not more than 5 years, or both, for a similar offense.)
Notice of Intent must be accompanied by a check or money order for $80.00 made payable to: NCDENR
Mail three (3) copies of the entire package to:
NPOES Permits Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Final Checklist
This application will be returned as Incomplete unless all of the following Items have been Included:
✓Check for $80,00 made payable to NCDENR
J 3 copies of county map or USGS quad sheet with location of facility clearly marked on map
J 3 copies of this completed application and all supporting documents
J 3 sets of plans and specifications signed and sealed by a North Carolina P.E. (if new or modified permit)
J Thorough responses to items I.11 on this application
J Alternatives analysis including present value of costs for all alternatives
Note: The submission of this document does not guarantee the Issuance of an NP®ES permit,
Page 4 of 4 04i®5

4
SALMON FA i Ly COMPANIES
x, ..........................
July 29, 2013
To Whom It May Concern:
The purpose of this letter is to designate Duncklee & Dunham to act as an
authorized representative on behalf of Mail Contractors of America (MCA) in
regards to submitting the Notice of Intent for Coverage under NPDES General
Permit NCG5100000. If you should need anything else please contact me at the
address and phone number listed below.
Sincerely,
a
?2ohng Donnelly
Regional Manager
Salmon Companies
407 Norwalk St, Greensboro, NG 27407 Phone: [phone]

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Greensboro, North Carolina
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Service Bay-6
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Buried ProdttctLines
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Offices // (To Be Rentovedj
-Q--- Security Fence
Location oiMonitoring Well
�- Drainage System to OWS
®— Stormwater Drains and Lines
_... 20,000-Gallon usr system
(Dashed Where tnkred)
- Electrical Lines
Natural Gas Line
Telephone Line
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= FINAL DESIGN- NOT RELEASED
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4
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Graphic Scale: I" = 2'
Mail Contractors ofAtnerica - --- ---
Greensboro, North Carolina
.4► Drawn By: Checked By: ProjWNumb" Date: Reference:
b4i AF4 201313 July 2013
Scale: Size: Layers: Filename:
L " = 2' 8.5" x 1 !" 0.1 P:Vrfail Contractors of AmericgGreensboro , 2013137igwrs • Pho1
DUNCKLEE & DUNHAM
F-NviRUNMF,N-AL OWLoOIsn'tmall -m
1.511KcishwDfivoSuiftiol -� (919)s5s.""
Cary, NGA Carolina 2751s , www.duockkeduAh=.carn
NC Fag. Liaase No. C-3559 NC G. Liemse No. C 261
forNPDES nalait

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I
Engineering Alternatives Analysis
Discharge of Petroleum -Contaminated Groundwater
NPDES Permit Application for General Permit NCG510000
Mail Contractors of America
Greensboro, North Carolina
This document provides an evaluation of tbrec engineering alternatives for disc
contaminated groundwater from the Mail Con{rec of America Carolina. MCA operates a barge of pet Ole
The s A op site co ground transportation business that includesCtruckthactoGreensboro,
m nai>rte ce and
J Waists of two buildings housing office and truck terminal space.
Description "Proposed Project
Based th previous environmental assessments conducted at the site, the depth to the water table
the northern end of the fueling and service building is less than ono foot below
petroleum hydrocarbons to the subsurfacebeneath
ease of
underground storage tank (UST) has been documonted within the confines of ea diesel
by along the underground product linos, and around floor drains
A crab sample of water collected by others from the tank pit exhibited contaminants at cancan
exceed North Carolina Department of Enground vironment and Natural Resources
contamination levels sample NR) that
downgradient from this UST exhib tedd contammaco, the monitoringwell, (W , con) gross
groundwater quality -3> COcted
4 rtY standards but not in excess of the concentrations that exceed the North Carolina
drains, underground fuel lines, and con C*CLs. Duneklee &Dunham removed the floor
with NCDENR closure guidelines. d soil as part of initial abatement activities in
Duneklee & Dunham will empty Following removal of the floor drains and accordance
documented to have had a release of and remove the oil -water se underground piping,
petroleum to soil and separator (OWS) which has also been
Water generated duringgroundwater.
The OWS will not be replaced,
site OWS to the City excavation of the floor drain and piping was discharged through
issued b City. men ce�bO1O municipal wastewater system under a Tam the existing on.
y the Ci Currently, groundwater that exhibits P°rary Dischar OWS and to the City sewer under an extension to the Te �a0 Urn corents is'lischar ge Parrott
of the OWS, an alternate discharge route must be identified. rary Discharge
P discharged through the
B Permit' Following removal
Facility Information
APPUcant
Mail Contractors of America
Company Contact;
John Donnelly
Mailing Address:
717 Camann Avenue
Telephone No.:
Greensboro, NC 27407
[phone]
f

Engineering Alternatives Analygis -
NPDESPemritApplication for GenetalPetmitNC6510000 _ .._ .. .. .
Mail Contractors of America "
Greensboro, North Carolina
August 1,2033
Page2of4 ... ...- - - _.....
Facility
Mail Contractors of America
Company Contact: John Donnelly
Mailing Address: 717 Camann Avenue
Greensboro, NC 27407
County: Guilford
Telephone No.: [phone]
EAA Preparer
Name: Andrew M. Rodak, P.E-
Firm: Duncklee & Dunham, P.C.
Mailing Address: 5I t Keisler Drive
Suite 102
Cary, NC 27518
Telephone No.: [phone]
Engineering Alternatives Analysis
Connection to a Municipal or Regional Sewer Collection System
As referenced previously, groundwater in the UST pit and excavations for the floor drain and
underground piping is currently being pumped through the on -site OWS to the City of Greensboro
municipal wastewater treatment system under a Temporary Discharge Permit. The City is allowing the --- --- -- --
discharge to continue under this permit until an alternate method of disposal is implemented. In
discussions with the City's Pretreatment Coordinator, Duncklee & Dunham learned that the City has
allowed the majority of active groundwater discharge permits to expire without renewal, and they do not
plan on issuing any more in the new future. The reason for this is their incapability to treat dissolved -
phase volatile and semi -volatile contaminants in the wastewater treatment facility. Attached to this EAA
is written confirmation from the City's Pretreatment Coordinator that confirms this policy. Therefore,
this alternative is not considered to be technologically feasible.
Subsurface Disposal (nitr9flcation field, infiltration gallery, injection wells)
This alternative is considered technologically infeasible for the following reasons:
I. The impervious density of the site is very high (over 95%), and all available space is utilized for site
activities (vehicle parking, maintenance, vehicle access). There is little to no space to install an
injection gallery, and adjacent properties are occupied and consist primarily of impervious surfaces.
2. The shallow water table at the site would make it difficult to re -inject treated water back into the
subsurface.

Engineering Alternatives Analysis
NPDES Permit Application for General Pennit NCG510000
Mail Contractors ofAmeriea - -
Greensboro, North Carolina
August 1, 2013
Page of4 -
3. Site soils are classified Cecil -Madison Series. This series consists of well -drained, moderately
permeable soils formed from igneous and metamorphic rocks (Soil Survey of Guilford Cowtty,
USDA, December 1977). A soil boring advanced on the site revealed that soil type in the limiting
horizon (0-6' bls) is clayey silt (SIC) (Natural Resources Conservation Service, field notes for boring
attached to this EAA). Available water capacity is 0,13-0.18 inch/inch, with a permeability range of
0.6 — 2.0 inches per hour. A best -guess estimate of hydraulic linear loading rate, based on an
1 assumed low BOD5 level (< 30 mg/L) is 0.3 gallon per day/square foot (gpd/fl ). At an estimated
wastewater flaw rate of 2,800 gallons per day (at a continuous flow rate of 2 gpm), the required
length of an infiltration trench/gallery is 9,600 feet and the required width of the trench is 8.33 ft., for
a total surface area of 79,968 fe (1.84 acres). This does not include buffers. The available site area
I for an infiltration gallery is not adequate, and additional land would be required for installation of the
gallery. Currently, property adjacent to the subject site is not available for purchase. The nearest
3 available commercial property is priced at $250,000/acre.
A present value cost for this option is presented below.
PV = C. +Cr(l +r)" —11
Where;
PV = Present value of costs
Co = Costs incurred in the present year
C = Costs incurred in time t.
t = Time period after the present year (The present year is t = 0)
n = Ending year of the life of the facility
r = Current EPA discount rate
Co = $250,000 (land cost for inf. gallery) + $100,000 (infiltration gallery cost) + $10,000
(groundwater treatment system cost) _ $365,000
C = $5,000 (annual operating and monitoring costs)
R = 3% (Source: TIN/Economics & Cost Analysis Support OAQPS Economic Analysis
Resource Document, Section 8.3, Discounting Benefits and Costs)
n = 10 years
PV=365,000+5000� (1+0.03r`10-11
0.03(1 + 0.03r10 J
PV = $407,500

Engineering Alternatives Analysis
NPDES Permit Application for General Permit NCG510000
Mail Contractors ofAmerim
Greensboro, North Carolina
August 1, 2013
Page 4 of 4
Spray Irrigation
As referenced during evaluation of other alternatives, this alternative is not technologically feasible due to
the highly impervious nature of the site, the shallow depth to the water table, the lack of available space
either onsite or offsite on which to spray the treated groundwater, and the low permeability of soil in the
limiting horizon. Site soils are classified as clayey silts in the limiting horizon, with a Long Term
Acceptance Rate (LTAR) of 0.3 gpd/lY?. As determined during the sizing of an infiltration gallery; the
spray -irrigation area required for the anticipated daily volume of treated groundwater is over an acre, but
this area is not available on the site or on adjacent properties. Based on data in the soil survey that shows
an infiltration rate of 0.6 in/hr. in the limiting horizon, a required spray area of 320 square feet would be
required to prevent ponding of water in the limiting horizon. The available site area for spray irrigation is
not adequate, and additional land would be required on which to spray irrigate. Currently, no property
adjacent to the site is available for purchase. The nearest available commercial property is priced at
$250,000/acre.
A present value cost for this option is presented below.
PV=Ca+C (l+r)"-1
Where:
PV = Present value of costs
Co = Costs incurred in the present year
C = Costs incurred in time t.
t = Time period after the present year (The present year is t = 0)
n = Ending year of the life of the facility
r = Current EPA discount rate
C� _ $250,000 (land cost for spry field) + $60,000 (spray irrigation cost) + $10,000
(groundwater treatment system cost) _ $315,000
C = $5,000 (annual operating and monitoring costs)
r = 3% (Source: TIN/Economics & Cost Analysis Support OAQPS Economic Analysis
Resource Document, Section 8.3, Discounting Benefits and Costs)
n = 10 years
PV = 315,000 + 5000 (1 + 0.03)^10 — 1
0.03(1 + 0.03)^101
PV = $357,500

I
City of Greensboro
L North Carolina
August 29, 2013
Andrew M. Rodak, P.E.
Senior Engineer
Duncklee & Dunham, P.C.
511 Keisler Drive
Suite 102
Cary, North Carolina 27516
Re: Discharge of Groundwater at Mail Contractors of America, 717 Camann Avenue, Greensboro, NO 27407
Dear Mr. Rodak,
We have issued a temporary permit to discharge groundwater from the MCA site through the on -site OWS
to the City POTW. This was to grant your firm some short period of relief to pursue a long-term disposal
option.
The City of Greensboro's current policy is to not accept groundwater from remediation projects such as this
one on a permanent basis.
I understand that the direct discharge permit application requires you to demonstrate that you have pursued
other disposal options. This correspondence will sere as documentation of your conversations with my
office.
Sincerely,
Frank Skee
Pretreatment Coordinator
336-433-7227
P.O. Box 3136 • Greensboro, NC 27402-3136 - www.greeneboro-nc.gov • (336) 373-CITY (2489) - TTY # 333.6930

\J tom- ADVANCED AT MCA
ALA-

REMEDIATION SYSTEM SPECIFICATIONS
Ma77 Contractors of America
Greensboro, Guilford County, North Carolina
Prepared By.
Duncklee & Dunham, P.C.
511 Keisler Drive, Suite 102
Cary, NC 27518
919-858-9898
Prepared by
Duacklee & Dunham, P.C.
Cary, North Carolina
August 1, 2013
DUNCKLEB & DUNHAN, P.C.

Remediation System Specifications
Mail Contractors ofAmerica
Greensboro, INC
August 1, 2013
Pago 3 of 4
The following are equipment specifications for the groundwater treatment system:
• One (1) Groundwater Extraction Well and Pump:
0 5-ft depth, 6" diameter, Sch 40 PVC, Screened entire length, 6" grout seal, 8" non -
traffic rated manhole with bolted cover
0 Submersible, 113 - %m Hp Pump, 2-wire, 115V, rated at 5 gpm at 10 ft. TDH
o Pressure regulator to maintain discharge pressure, at 10 psi max prior to entering
carbon adsorbers
• Groundwater Treatment System
o One (2) Rosedale or like bag filter, 5 micron, Polyester felt bag, equipped with inlet
and outlet pressure gauges, 1" female NPT connections, stainless steel or painted
carbon steel construction.
• The bag will be replaced in the filter when the pressure differential measured by
the two gauges is greater than I V.
o Two liquid -phase carbon adsorbtion vessels, plumbed in series. Epoxy -coated steel
exterior vessels, with 1" NPT and outlet female connections. Each container will be
24.5" in diameter and 36.5" in height. Each container will hold 200 lbs. of acid -
washed, granular activated carbon. The maximum flow rate through the adsorbers
will be 10 gpm, and the maximum design pressure will be 10 psi.
• The system is designed for redundancy such that the downstream (secondary)
treatment unit will replace the upstream (primary) treatment unit when the carbon
in that unit is spent. The carbon in the spent unit will be sent off -site for re-
generation, and a fresh carbon unit will be installed as the secondary treatment
unit.
0 1" PVC Ball valves and sample ports installed upstream, between, and downstream
of the carbon adsorbers to analyze contaminant concentrations in groundwater
through the units and determine break -through point.
0 One I" digital liquid flow meter, rated at 2-20 Spin in 1l10 gallon increments with a
non-re-settable 100,000-gallon counter installed downstream of the carbon adsorbers
to record flow through the system
• System piping:
0 100 feet of 1.5 -inch Schedule 40 PVC Pressure piping
o 10 feet of 1.5 -inch Schedule 40 PVC Pressure piping
0 1, 8" PVC Wye
o 1, 1.5" x 2" reducer
o 1, 2" x 4" reducer
o 1, 4" x 8" reducer
o 2, 1.5" unions
DUNCKLEE & DUNHAM, P.C.

Remedietion System Specifications
Mail Coubectors of America
Greensboro, NC
August 1, 2013
Page 4 of 4
0 4, 1.5" 90° elbows
0 3, 1" 90° elbows
o S, 1.5" PVC tees
o Three 1-inch ball valves
0 2" pipe insulation for all exposed piping
All other materials, equipment and labor to complete the installation and provide an operational system
shall be provided by the Contractor.
On
DW, CKLEE & DUNHAM, P.C.

C4RBONAIR
Your Mobile Water Treatment S eciahsts
1480 County Road C, Roseville, MN 55113 Phone: [phone] Fax: [phone] www.corbongir.com
Customer: Dunckee & Dunham, Cary, NC
Site: North Carolina
Date: 7/26/13
Design Basis: Flow rate: 2-5 gpm
Water temperature: 55 °F (assumed)
Contaminant
Influent
Conic.
Effluent
Criteria
Unit
Aromatic C11-C22 EPH
881
NS
u /L
Aliphatic C08-C12 VPH
834
NS
ucVL
Aromatic C09-C10 VPH
357
NS
u
Fluorene
5.4
NS
u L
Naphthalene
3$
12
u /L
Benzene
1
NS
u /L
See-Bu (benzene
6
NS
u /L
Eth (benzene
15
NS
u /L
N(benzene
6.1
NS
u /L
6.7
NS
u
n-Fropylbenzene
8.5
NS
u
Toluene
1
NS
u L
X lenes
11.3
NS
u L
Phenols
15
300
u L
Oil & Grease
0.780
NS
Wit.
TSS
20
30
m
H
Unknown
6.0-9.0
S.U.
Note: Bold values Indicate the exceedance of the discharge limits.
Recommendations: Pre -Filters (to remove suspended solids)
Two Krysfil Klear L8830 bag filters in parallel (1-micron nominal) with a total
filtration area of 8.8 ft
• The pre -filters are recommended due to the high TSS concentration.
Liquid phase Carbon Ad orbers (to remove dissolved hydrocarbons)
Two LPC3 drums in series, each with 200 Ibs of acid -washed granular activated
carbon
• Most of non -acid -washed carbons have been found to cause pH spikes. The acid-washsd
carbon is recommended to prevent a pH spike.
• Of all the Usted contaminants, naphthalene Is the only contaminant that has the concentration
above the discharge limit.
• Based on the breakthrough of naphthalene, the lead and lag adsorbers are predided to last 100
and 260 days of oonfinuous operation at 5 gpm (720,000 and 2,016,000 gallons), respecfivety.
Recommend changing out the lead adsorber every 150 days of contlnuous operation at 5 gpm
(1,296,000 gallons of water).
r
t

NOTICE
THIS DOCUMENT AND ITS CONTENTS ARE PROPRIETARY TO CARBONAIR ENVIRONMENTAL SYSTEMS, AND MAY NOT
BE COPIED, DISTRIBUTED OR USED BY ANYONE, IN WHOLE OR IN PART, WITHOUT THE EXPRESS AUTHORIZATION OF
CARSONAIR.
THE CONTENT OF THIS DOCUMENT HAS BEEN DEVELOPED BY CARBONAIR TO ADDRESS SPECIFIC FACTUAL
INFORMATION. IT MAY BE BASED ON INFORMATION AND ASSUMPTIONS THATARE NOT DISCLOSED WITHIN THIS
DOCUMENT, BUT REFLECT CARSONAIRB KNOWLEDGE AND EXPERIENCE. THE INFORMATION IN THIS DOCUMENT
SHOULD NOT BE USED OR RELIED UPON BY ANYONE WITHOUT THE COOPERATION OR ASSISTANCE OF CAR13ONAIR
TO FULLY UNDERSTAND ITS INTENDED APPLICATION AND USE.

t
r '
LIQUID -PHASE CARBON ADSORPTION MODEL CALCULATIONS
CAR.BONAIR ENVIRONMENTAL SYSTEMS
1480 COUNTY ROAD C WEST
ROSEVILLE, MN 55113
PHONE: [phone]
FAX: [phone]
CARBON ADSCRBERS: LPC3
NO OF ADSORBERS IN SERIES: 1
TOTAL MASS OF CARBON (LES); 200.00
FLOW RATE (GPM): 5.0000
HYDRAULIC LOADING (GPM/SQ.FT): 1.7580
EMPTY BED CONTACT TIME (MIN.): 1D.904
DESIGN COMPOUND: NAPTHAINM
EXPECTED INFLUENT CONCENTRATION (PPB): 35.000
MODEL INFLUENT CONCENTRATION (PPB): 2070.0
EFFLUENT CRITERIA (PPB): 12.000
EFFECTIVE K-VALUE (%): 30.000
TIME(DAYS) VOLUME TREATED(GAL) EFF. CONC.(PPB)
10.0 72000. 0.0000
20.0 144000. 0.0000
30.0 216000. 0.0000
40.0 288000. 0.0000
50.0 360000. 0.0000
60.0 432000. 0.0000
70.0 504000. 0.0000
80.0 576000. 0.0942
90.0 648000. 1.9754
100.0 720000. 9.3859 F SRwimm0tnu
110.0 792000. 37.8368
120.0 864000. 148.3477
130.0 936000. 389.6155
140.0 1008000. 668.1693
150.0 1090000. 914.4164
160.0 1152000. 1120.4768
170.0 1224000. 1291.2276
180.0 1296000. 1432.3637
190.0 1368000. 1548.7873
200.0 1440000. 1644.6844
Notes The model influent concentration results from the
impact of the other background compounds, which is
determined by using a competitive adsorption model
DISCLAIMER: ACTUAL RESULTS MAY VARY SIGNIFICANTLY FROM
THE MODEL. THE MODEL IS BASED ON THE ASSUMPTIONS THAT
THE FLOW RATE AND INFLUENT CONCENTRATION ARE CONSTANT,
AND ONLY THE CONTAMINANTS PROVIDED TO CARBCNAIR ARE
PRESENT IN THE WATER. VARYING OPERATING CONDITIONS CAN
HAVE ADVERSE EFFECTS ON CARBON ADSORPTIVE CAPACITY.
THE PREDICTED BED LIFE IS NOT GUARANTEED.

LIQUID -PHASE CARBON ADSORPTION MODEL CALCULATIONS
CARBONAIR ENVIRONMENTAL SYSTEMS
1480 COUNTY ROAD WEST
ROSEVILLE, MN 55113
PHONE: [phone]
FAX: [phone]
CARBON ADSORBERS: LPC3
NO OF ADSORBERS IN SERIES: 2
TOTAL MASS OF CARBON (LES): 400.00
FLOW RATE (GPM): 5.0000
HYDRAULIC LOADING (GPM/SQ.FT): 1,7580
EMPTY BED CONTACT TIME (MIN.): 21.809
DESIGN COMPOUND: NAPHTHALENE
EXPECTED INFLUENT CONCENTRATION (PPB): 35.000
MODEL INFLUENT CONCENTRATION (PPB): 2070.0
EFFLUENT CRITERIA (PPB): 12.000
EFFECTIVE K-VALUE (%); 30.000
TIME(DAYS) VOLUME TREATED(GAL) EFF. CONC.(PPB)
20.0 144000. 0.0000
40.0 288000. 0.0000
60.0 432000. 0.0000
80.0 576000. 0.0000
100.0 720000. 0.0000
120.0 864000. 0.0000
140.0 1008000. 0.0000
160.0 1152000. 0.0000
180.0 1296000. 0.0000
200.0 1440000. 0.0000
220.0 1584000. 0.0000
240.0 1728000. 0.0000
260.0 1872000. 0.0000 E eaaauTfazooc+x
280.0 2016000. 63.8890
300.0 2160000. 461.1011
320.0 2304000. 948.9752
340.0 2448009. 1300.6738
360.0 2592000. 1345.5923
380.0 2736000. 1714.5166
400.0 2880000. 1829.9478
Note: The model influent concentration results from the
impact of the other background compounds, which is
determined by using a competitive adsorption model
DISCLAIMER: ACTUAL RESULTS MAY VARY SIGNIFICANTLY FROM
THE MODEL. THE MODEL IS BASED ON THE ASSUMPTIONS THAT
THE FLOW RATE AND INFLUENT CONCENTRATION ARE CONSTANT,
AND ONLY THE CONTAMINANTS PROVIDED TO CARBONAIR ARE
PRESENT IN THE WATER. VARYING OPERATING CONDITIONS CAN
HAVE ADVERSE EFFECTS ON CARBON ADSORPTIVE CAPACITY.
THE PREDICTED BED LIFE IS NOT GUARANTEED.

c
.!

/I,, 1e
A 7 • 'dCealXical
Pace Analytluow t Servlcas, Inc. Pace AnalyAtfl aervlCbe, Inc.
205 %5t MeadRoad-SuIteA 2225 Riverside Dr.
PaceAnafylical Services, Inc.
6800 gmxy Ave. Sutle 100
., a4v6pecvkb-
Eden, NC 27288
Asheville, NC 28804
Huntswille, NC 28078
[phone]
[phone]
[phone]
ANALYTICAL RESULTS
j Project MCA201313
i Pace Pro]eC No.:/2112/11
Semple: WASH BAY DEWATERING
Lab ID: 92162988005
Collected: CM6J13 14:25 Received: 06/2&13 14:25 Matrix:Water
POINT
r Parameters
Results Unite
Report Limit
OF
Prepared Analyzed CAS No.
Qua[
MADEP EPH NC Water
Analytical Method: MADEP EPH Preparation Method:
MADEP EPH
ZAliphatic (C09-C18)
ND ug/L
100
1
06/28/1318:20 07/01/13 17:08
N2
Allphatic(C79-C36)
ND ug1L
100
1
0612811316:20 07JO111317:08
N2
Aromatic(Ctt-C22)
881 ugli-
100
1
0612811316:20 07102/1313:32
N2
Surrogates
Nonatnaoontane (S)
86 %
40-140
1
00811316:20 07/01/1317:08 7194-86.7
o-Terphanyl(S)
90 %
40.140
1
0&28113 16:20 07/02JI3 13:32 84-16-1
1 2-Fluorobiphenyl (S)
108 %
40-140
1
W2811316:20 07/02/1313:32 32"0.8
2-Bromonaphthalene (S)
J
174 %
40-14D
t
0612811316:20 07102/13 13:32 880-13-2
S5
j VPH NO Water
Anaytical Method: MADEP VPH
jAliphatic(C05-008)
NO ug/L
50.0
1
OW30/1319:09
N2
Aliphatic (C09-C12)
834 ug/L
50.0
1
08/3011319:09
N2,NC
Aromatic (009-C10)
357 ug/L
50.0
1
OMO/1319:09
N2,NC
Surrogates
4-BromoBuombenzens(FID)(S)
1D5 %
70-130
1
011W11319:09 460-004
4-Bromofluorobanzene(PID)(8)
112 %
70-130
1
06130/1319:D9 400-004
6010 MET ICP, 3030C
Analytical Method: EPA 6010 Preparation Method: SM 3030C
Chromium
ND ug/L
5.0
1
06/2711315:45 OW011316:06 744047-3
Lead
625
ND ug/L
5.0
1
OW7113 1545 06/29/13 23:33 7439.92-1
MSSV
Analytical Method: EPA 625 Preparation Method:. EPA 625
Acenaphthene
NO ug/L
5.0
1
06/2611319:0D OW811318:27 83-32.9
Acensphthybne
NO ug/L
5.0
1
06/2&1319:00 06M8/1318:27 208-96.8
Anthracene
NO uglL
5.0
1
OWBI1319:00 06/2&131&27 120-12-7
Benzo(a)ardhracene,
NO ug/L
5.0
1
0&2611319:00 0&2811318:27 56.6&3
Benzo(e)pyrene
NO ug/L
5.0
1
082811319:00 0&2&1318:27 50-32-8
Senzo(b)fluorenthene
ND ug/L
5.0
1
O&2011319:00 0612811318:27 205.99-2
Benzo(g,h,l)peryiene
ND ug/L
5.0
1
062611319:00 OW811318:27 igt-24-2
Benzo(k)6uomnthene
NO uglL
5.0
1
06/20319:00 0812811318:27 207.08.9
4-Bromuphenylphenyl ether
NO uglL
5.0
1
06261131WOO 08128113 18:27 101.55-3
Butyibenzylphthalate
NO uglL
5.0
1
08/2611319:00 06/2811318:27 85.88-7
4-Chloro-3-methylphenol
NO ug&
5.0
1
082611319:00 OW8/131&27 5MO-7
b13(2-ChI0Mathoxy)mGthane
NO ug&
10.0
1
061281131940 06=11318:27 111-91-1
bis(2-Chlomathyp ether
NO uglL
5.0
1
0612811319:00 06/2811318:27 111-444
bis(2-Chioro[sopropyq ether
NO ug/L
5.0
1
OM1319:00 05/28/1318:27 108.60-1
2-Chloronaphthalens
NO ug/L
5.0
1
06128H 319:00 0&28/1318:27 91.W7
2-Chlorophenol
NO uglL
5.0
1
06125/1319:00 OW811318:27 95-57-8
4-Chlorophenylphenyl ether
NO ug/L
5.0
1
0626/1319:00 06/2811318:27 7005-72-3
Chrysene
NO uglL
5.0
1
OM11319:00 0612811318:27 21MI.9
Dibenz(a,h)anthracene
NO ug/L
5.0
1
06W1319:00 06/28/1318:27 53-70.3
3,3'-Dichlorobenzidine
NO ug/L
25.0
1
0OW1319:00 06/2811318:27 91.94-1
2,4-Dichlomphenol
NO ug/L
5.0
1
062&1319:00 06/2811318:27 120.83-2
Dlathylphthalate
NO ug/L
6.0
1
0812&1319:00 06128/1316:27 84-66.2
2,4-Dlmethylphenol
NO ug)L
10.0
1
06WI319:00 06l2811318:27 1OS417-9
Dlmethyiphthalate
ND ug/L
5.0
1
062611319:00 06128/1318:27 131-11-3
REPORT OF LABORATORY
ANALYSIS
This report shall not be reproduced, except In hill,
Date: 07/0112013 08:04 AM
without the WrBlen
consent of Pace Analytical Sen lees, Inc.,
Page 20 of 60

�ce!nalytieat'
VAemWWruwl
a
Pece Amlytkel Services, Inc. Pace Anslytkal Servicas, Inc. Pepe Anelyt1ca18ervkea, Inc.
205 East Meadow Road -SUftA 2226 Rhrerslde Dr. 980010r. A,, Suneloo
Eden, NC 27288 Asrrevllle, NC 28804 Huraersvllle, NC 28078
(33a)823-a921 [phone] [phone]
7
ANALYTICAL RESULTS
Project: MCA201313
Pace Projeot NO.: 92162988
Sample: WASH BAY DEWATERING
POINT
Lab ID: 92182988006 Collected: 06/26113 14:26
Received: 0826/13 14:25 Matrix; Water
+ Parameters
Resub
Units Report Limit
DF
Prepared Analyzed CAS No. Qual
626 MSSY
j
Ans"cal Method: EPA 625 Preparation Method: EPA
525
DI-n-butylphthalete
NO ug/L
5.0
1
0826/1319:00 0628/1318:27 84-74-2
1 4,6-Dinitro-2-methylphenol
NO ug/L
20.0
1
062611319:00 082811318:27 53452-1
2,4D(nifrophenol
NO u90.
50.0
1
06126/1319:00 OW811318:27 51-28.5
2,4-Dlni rotoluene
NO ug/L
5.0
1
OW6113 19:00 0626/73 18:27 121-14-2
2,6-0Initrotoluene
NO ug/L
5.0
1
06126/1319:00 062811318:27 eW-20-2
DI-noctylphthalate
NO ug/L
5.0
1
0=611319:00 0B2S/1318:27 117-84.0
bls(2-Ethy1hexy0phthalate
NO ug0.
5.0
1
06/26/1319:00 0028/1318:27 117.81-7
Fluoranthene
NO ug0.
5.0
1
0626113 19:00 06/28/13 18:27 205-44-0
Fluorena
Hexachlorc-1,3-butadlene
5.4 ug1L
NO ugn-
5.0
1
0626/1319:00 062811318:27 86-73.7
Hexachlorobenzene
NO ug/L
5.0
1
062611319:00 0812811316:27 87-683
Iiexachlorogclopentadkne
NO ug/L
5.0
10.0
1
1
062811319:00 OM811318:27 118-74-1
062611319:00 0828/1318:27 77474
Hexachloroethana
NO uglL
6.0
1
0626113 %00 0628/13 18:27 67-72-1
Indenc(1,2,3-cd)py ans
NO ug/L
5.0
1
0826/1310:00 0628/1318:77 193-39-5
- Isophorone
Naphthalene
NO ug/L
10.0
1
062611319:00 0628/1318:27 78.5&1
Nitrobenzene
24.7 ugly
5.0
1
0626/1319:00 062811318:27 91-203
2-Nitrophenol
NO ug/L
5.0
1
06W13 19:00 08128/13 18:27 98-953
4-1,11trophenol
ND ug/L
NO ug/L
5.0
1
0626/1319:00 0628/1318:27 86-755
N-Nibosodimethylamine
NO ug/L
60.0
1
08/26N319:00 06/2811318:27 100-02-7
N-Nitroso-di-n-propylamine
NO ug/L
5.0
5.0
1
W2811319:00 0628/1318:27 e2-75-9
N-Nitrosodlphenylamins
ND ug/L
10.0
1
06MI319:00 062811318:27 021-84-7
Pentachlorephenol
ND ug/L
1
0626/1319:00 Oe/2811318:27 80505
Phenanthrene
25.0
1
OW26/1319:00 0628/1318:27 87-88-6
ND ug/L
5.0
1
08/2611319:00 062811318:27 85-0h8
Phenol
NO ug/L
5.0
1
0B/26/1319:00 062811318:27 108-95-2
Pyrene
NO ug1L
5.0
1
08/26/1319:00 08/2811318:27 12MO.0
1,24-Tdchlorobenzene
NO ug/L
5.0
1
0626/1319:00 062811318:27 120-82-1
2,4,6-Tdchlcrophanol
Surrogates
NO ug/L
10.0
1
0612611319:00 OM811318:27 88.0a-2
Nitrobenzene-d5 (S)
67 %
10-12D
1
0612611319:00 0828113 1827 416MO-0
2-Fluorobiphenyl(8)
76 %
15-12D
1
082611319:00 062aM318:27 321-Sm
Terphenyl-014 (8)
67 %
11-131
1
0828/1319:00 0628/13 18:27 1718-51-0
Phenol-d6(S)
2-Fluorophenol(S)
29 %
10-120
1
0626/1319:00 OB/2811318:27 13127-88-3
2,4,6-Trlbromophenol (8)
38 %
87
10-120
1
0=611319:00 08/2811318:27 357-12-4
%
10437
1
CM611319:00 062811318:27 118.7"
8200E I
A181y6Cal Method:
SM 6200B
Benzene
Bromobenzene
0.96 ug/L
NO ug/L
0.50
1
062811321:48 7143-2
Bromoehloromethane
NO ug/L
0.50
0.50
1
1
0612811321:48 108-8-1
Bromodichloromathane,
NO ug/L
0.50
1
0028/1321:48 74-97.5
Bromoform
NO ug/L
0.50
1
082all321:48 75-274
Bromomathane
NO ug/L
5.0
1
0628/1321:48 75-25-2
n-Butylbenzene
NO ug/L
0.60
1
0612S/1321:48 74.83.9
w.Butylbenzens
5.9 ug/L
0.50
1
0628/1321:48 104-51-B
tort-Butyibenzene
ND
0812811321:48 135-98-8
up/L
0.50
1
0612811921:48 95-OM
REPORT OF LABORATORY ANALYSIS
This report Shall not be reproduced. except In full,
Date: 07108201308:04 AM wnhout the wriaen consent of PeceAnalyuost Services,Inc.. Page 21 of 60

17 OESC
Jjjl!
mom Dunham
D=C11111 aad Dtlnbam
DO sox 639
Cary, NC 27512
Report Summary
Wednesday July 24, 2013
Report Number: L647243
SWW1es 'Received: 07/18/1:3:
Client Prdject: 201313
12065 Lebaton Bd.
Mt. Juliet, TV 37122
(6157 758-6BbB
1-80D-767-5659
F— [phone]
tax I.D, 62-0814289
Bet. 1970
qThe analytical result, in this report are based upon iafyoyrmation suppyplied
ueationshregarding thisadataopackage, pl aseedosnot heeittalteato call.
Entire Report Reviewed By: k.. A
Jimmy Hunt ; BBC Representative
Laboratory Certf, ficalion Numbers
A2LA - 1461-01, AIHA - 100789, AL - 40660, CA - 01157CA, CT - PH-0197,
FL - E87487, OA - 923, IN - C-TN-01, KY - 90010, RYVST - 0016, NC - ENV375/DW21704/EIO041, ND - R-140. NJ - TW002, NJ NELAP - TNOO2,
SC - 84004, TN - 2006, VA - 460132, NV - 233, A9, - 0612,
MN - 047-999-395, NY - 11742, WI - 998093910, NV - TN000032011-1,
TX - T104704245-11-3, OR - 9915, PA - 68-02979, IA Lab 0364
Locreditatiou 1a only applicable to the teat methods specified on eaob scope of eocreditetion held
by BBC Lab Boieneee.
note: The nee of the preparatory Bps Method 3511 1- not approved or endorsed by the m EL ,
This report may not be reproduced, except in full, without Britten approval frog BBC Lab Bclencee.
Wee re applicable, sampling conducted by BBC is performed per guidance pmvlded
1n laboratory standard operating procedure-; 060302, 060303, and 06D304.
Page 1 of 6
Page 3 of 6
4

Attachment R
Rxplanation of CC Qualifier Code.
Qualifier Meaning
J (EPA) - Estimated value balm the lowest calibration point. Confidence
correlates with concentration.
Qualifier Report information
ESC utilise. ample and result qualifiers as set forth by the EPA Contract Laboratory Program and
as required by most certifying bodies including NHIAC. In addition to the EPA qualifier. adopted
by ESC, we have implemented ESC qualifiers to provide more information pertaining to our analytical
results. Each qualifier is designated in the qualifier explanation as either EPA or ESC.
Data qualifiers are intended to provide the ESC client with mare detailed information concerning
the yotential bias of reported data. Because of the wide range of constituent& and variety of
matxicea lacorporated by most EPA mathod.,it is common for some compounds to fall outside of
established ranges. These exceptions are evaluated and all reported data is, valid and useable
"unlas$ qualified as IR, (Rejected)."
Definitions,
i Accuracy - The relationship of the observed value of a (mown sample to the
11I true value of a known .ample. Represented by percent recovery and
relevant to samples such as: control aample$, matrix spike recoveries,
surrogate recoveries, etc.
Precision - The agreement between a set of samples or between duplicate samples.
Relates to how close together the results are and is represented by
Relative Percent Di fferrence.
i Surrogate - organic compounds that are similar in chemical composition, extractioa,
and chrpnotography to enalytes of interest. The surrogates are used to
determine the probable response of the group of analytes that are chem-
ically related to the surrogate compound. Surrogates are added to the
sample and carried through all stages of preparation and analyses.
TIC - Tentatively Identified Compound: Compounds detected in samples that are
act target compounds, internal ataadamds, system monitoring compounds,
or surrogates.
page 4 of 6
12065 Lebanon Rd.
Mt. •Tibet, TM 17121 -,..- ---_-----.--'---------,-.
[phone]
1-000-767-5859 ...____._..__-.-....__
Fnx [phone]
E.t, 1970
1013
b # : L647243-01
GREENSBORO, NC
201313
er Method Data Dil.
9066 07/24/13 1
2540 D- 07/22/13 1
1664A 07/22/13 1
.oval from ESC. ,
Page 2 of 6

Attachment e
Bxglaaation of QC qualifier Codes
Qualifier Meaning
S (RpA) -estimated value below the lowest calibration point. confidence
i correlates vital concentration.,
1 Qualifier Report Information
i RSC utilizes sample and result qualifiers ate set forth by the EPA Contract Laboratory program end
as required by most certifying bodies including NS_C. In addit io¢ to the $pA qualifiers adopted
by BSc, we have implemented SSC qualifier. to provide more information pertalniag to our analytical
results. Bach qualifier is deaig¢ated in the qualifier explanation as either SpA or HSC.
j Data qualifiers era intended to provide the HSC client with more detailed infon^ation concerning
II the potential bias of reported data. Because of the wide range of constituents anfl variety of
matrices incorporated by most 8PA mathode,it Se common for soma compounds to fall outside a!
"unless qua ified . These a captions are evaluated and all reported date is valid and useable
"unless h.d r qualified a9 I (Rejected).^
Accuracy - The relationship of the observed value of a knoma sample to the
tions
true value of a known sample. Represented by percent recovery and
j relevant to samples" a., control Samples, matrix spike recoveries,
1 surrogate recoveries, etc.
Precision - The agreement between a set of sample. or between duplicate .ample..
Relates to how close together the result. ere and is represented by
Relative percent DifEerrence.
Surrogate - Organic Compounds that are similar in chemical composition, extraction,
and ebremotography to analytea of interest. The surrogates are used to
determine the probable response of the group of analytea that are chem-
ically related to the surrogate Compound. Surrogates are added to the
sample and carried through all Stages of preparation and aaaly..S.
TIC - Tentatively Identified Compound: Compounds detected in samples that are
not target compounda, internal Standards, system mbmitoring compounds,
or Surrogates.
r
page 4 of 6

Summary of RemarksFor Samples Printed
07/24/13 at 17:29;01
TSR Signing R&POrta: 350
R5 - Desired TAT
MDL/PDL) Use ASG, COG, TLG not ICP .. GW; Attach COC to back of report PDP) PPR
Sample: L647243-01 ACCountz DMMUNNC Received: 07/18/13 07:00 Dee Data: 07/25/13 0000 M Date; 07/24/13 17:28

12065 LebanonLebanonRd.
*ESC
mt. Joliet, TO37122
(625) ,,68,:::S:
1-0 DO-7
L A-13 6-C.I.e.N.c.K.0
Fax [phone]
2M
T— I.D. 62-0814289
D=ckle* and Dunham
Eft, 1970
Tom Dunham
Po a— 639
Quality AssaraaM Eepoxt
Cory, NC 27512
Level ZI
L647243
Daly 24, 2013
Mc—
vw
Limit
Bt.h Data Anal so
77
Total ot I*
Anal to
!4�=Bate RPD
init
8.6pa.d.d Solids • %7,
�A --'jA4AQ§ 03 4�, ..
.74 :1` C 74V`'03��' 612648
agn 210. "'ji 9M
3.
L647218-01 VC6211.
T IPN6�661 by
Total Phenol bx ji
San 8.0910 27.5
21
Z4 10673461
U&44167'02
Analy.t.
WG673462
Result
C
Lien
8' sPenFded BeF
TM - �i; 6 Ones.
20
72141
Total Phenol
38.0
70-12.4 W0672754
110.
�O-�.73491
Anal
vatbriank,
9;(;
v
TPH 0
:*4672648
% W..
10.0 92.0
10 W0672754
Total —1 UAP
by
544 0.548 iog.
-110
0.933- jo
Mal to
me R- TO t Ran
Limit
Saf Batch
44780- 01 `*"73461
Anal
t.
L.3r,
2.0. Wq673461
Satoh Mmbar member Sample number cruse raf.rsoas
W067264e; R2752062, L647243-01
WG6727 S4 . R2753320, L647243-01
.73461: IL2756320: L647243-01
• Calculations are performed prior to rMudlug Of reported -loss.
• perfo—soas of this Analyra is outside of established
For additional information, P, .... ... Attoohemat A 'List of AnalYtOs with Or Qualifier,. -
page 5 of 6

' --
�� `
'^ . ' '—_�___—____— _—_—___--_�_____—___—___
OESC
°~p�.=~�= �--'---- ��--- '---- -- --- ' --- -----------
^°° "°,="°~"
.
Tax I.D. 62-:BL4289
M..°~~^"~°~
^^. 19° r— '— — — ------- —'—'-- '— — — — — — — — _
Tom Dunh
soSo. =" "M"ty^~~~~~pu=
�°�=� ���
=~`^'`"`"
==^^
i
120 data package includes & summary of the auslytic results of the quality
ry sample that is affect is Nagged with the
appropriate qualifier in APPeudix 9 Of the analytic rp,rt.
MI Md Blank -can linot Of roment w&ter carried through the
ir.
any P*80�1- contamination �Pog'rm during the sample handling,
target analytao ab� the rep.ring limit in the method blank are
qualified with the -B-- qualifier.
Laboratory Co trol Sample . 1, , sample Of known cono,ut,o,inn,
that is carried through the di9..tLun/..t­tj- and —lyi
the.- . .untration, has Latiaticul control limit
argot Yt: ���� Control li,it. for the
������ -
'—i—I
:mple that is piked with known concentrations of
outside the.;i.-d --I limits, the sample thRt selected
sman,
page "Of^

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