NC0089656_More Information (Received)_20161201

December 1, 2016

Mr. Derek Denard
512 N. Salisbury Street
(9th Floor-Archdale Bldg)
Room 942-B
Raleigh, North Carolina 27604

Reference: Engineering Alternative Analysis
NPDES Permit Application No. NC 0089656
1515 South Tyron Street
Charlotte, North Carolina
ECS Project 49-1836A

Dear Mr. Denard:

ECS Carolina, LLP (ECS), on behalf of DC Charlotte Plaza LLP, is requesting a NPDES permit
be issued for water generated from dewatering wells which will be used during construction of a
multi-story office building and sub-grade parking garage. During construction of the sub-grade
structure, water generated from the dewatering wells will be collected and treated by a
temporary treatment system. Once the sub-grade structure, including the sub-slab dewatering
system is completed, the collection, treatment, and discharge of water will be shifted to a
permanent treatment system.

BACKGROUND INFORMATION

The site consists of twelve parcels located between Camden Road, South Tryon Street, and
West Park Avenue in Charlotte, Mecklenburg County, North Carolina and is addressed as 1515
South Tryon Street. ECS previously conducted a Phase I Environmental Site Assessment (ECS
Project No. 08-10875-A, dated August 25, 2015) for the site. ECS identified the following
recognized environmental conditions (RECs) with respect to the subject site.

• The presence of a monitoring well associated with the former Clawson Radiator
Brownfields listing located on the site.
• The auto repair facilities, potential dry cleaning facilities, chemical laboratories, and photo
finishing facilities identified during the historical information review as being formerly located
on the site.
• Multiple facilities identified in the EDR Radius Map Report in the vicinity of the site. Based
on the proximity to the site and/or the direction of groundwater flow inferred from surface
topography, ECS considered the following facilities and/or properties discussed in the
Environmental Records Review section to be RECs of the site: Kee Auto Top
Manufacturing Co. (1538 South Tryon Street), Beaty Bros Service Station (1541 South
Tryon Street), Light Rail (1511 Camden Road), Miller Service, (100 East Park Avenue, H H
Service Station (1600 Camden Road), 1600 Camden Road (1600 Camden Road), Fowler
Building (1447 South Tryon Street), Charlotte Coal Gas Plant No. 2 (South Boulevard),
Engineering Alternative Analysis
NPDES Permit Application
1515 South Tryon Street
Charlotte, North Carolina
ECS Project 49-1836A
December 1, 2016

2
BCD Development Property, LLC (1611 South Tryon Street), and Delores Sheets
Residence (1612 South Tryon Street).
• Several auto repair facilities, filling stations, photo finishing facilities, manufacturers, sheet
metal shops, and other commercial and/or retail businesses identified during the historical
information review as being currently and/or historically located on surrounding properties.

ECS conducted a soil and groundwater assessment (ECS Project No. 08-10875-B dated
September 9, 2015) to assess the identified RECs on the site. Based on the results of the soil
and groundwater assessment, ECS concluded the following:

• Groundwater was encountered at an approximate depth of 15 feet below the ground
surface.
• Laboratory analysis of groundwater samples B-1 GW, B-2 GW, and S-1 GW detected
targeted analytes at concentrations that exceeded the North Carolina 2L Groundwater
Quality Standards (NC2LGWQS).
• If dewatering is required during site development, management of impacted groundwater
will be necessary.

PROJECT DESCRIPTION

The project consists of the construction of a 12-story multi-use building and associated parking
garage. Two levels of the parking garage will be below the existing grade and will be excavated
to an approximate depth of 20 to 30 feet. The base of the garage will extend approximately
seven feet below the water table. Because the bottom of the excavation will extend below the
water table, a groundwater dewatering system will need to be installed prior to excavation and
construction of the subgrade garage.

Initially, a dewatering system consisting of thirty-four recovery wells will be placed around the
excavation. Pumps will be installed in the wells and connected to a 20,000 gallon frac tank.
Water from the frac tank will be pumped to a temporary, trailer-mounted treatment system
consisting of two 2,000-pound activated carbon tanks. The treatment system will also have a
have a bag filter, flow totalizer, and sample port. A schematic of the temporary treatment
system is attached. The treated water will be discharged to the storm drain located on the
northern side of the site along South Tryon Street. The storm drain discharges to an
unidentified tributary to Irwin Creek which is located in the Sugar Creek Watershed. The
construction stage of the project is estimated as one to two years to complete.

Initially the groundwater removed by the dewatering wells will be treated by the “temporary
system”. This will continue until the sub-slab dewatering system is complete. Once complete,
the temporary system will be shut off simultaneous with the permanent system being turned on.
The permanent system will consist of a sub-slab dewater watering drainage system which will
drain into two sumps. Figures showing the sub-slab dewatering system are attached. Pumps in
the sumps will pump water to the permanent treatment system consisting of four 1,000-pound
activated carbon tanks. The treatment system will also have a have a bag filter, flow totalizer,
and sample port. A schematic of the permanent treatment system and piping is attached. The
treated water will be discharged to the storm drain located on the northern side of the site along
Engineering Alternative Analysis
NPDES Permit Application
1515 South Tryon Street
Charlotte, North Carolina
ECS Project 49-1836A
December 1, 2016

3
South Tryon Street. An email from the City of Charlotte approving discharge to their stormwater
system is attached. The final system will be in operation for the life of the building.

Applicant Name

Mr. Jason Frost
DC Charlotte Plaza LLLP
191 Peachtree Street, Suite 500
Atlanta, Georgia / 30303
404-407-1892

Facility Name

Dimensional Place
1515 South Tryon Street
Charlotte, Mecklenburg County
Under construction, contact information above

EAA Prepare Information

John M. Stewart
ECS Carolinas, LLP
4811 Koger Boulevard
Greensboro, North Carolina 27407
336-856-7150
[e-mail]

ENGINEERING ALTERNATIVE ANALYSIS

Evaluation of potential restrictions to a wastewater discharge to surface waters

For streams in western Mecklenburg County, low-flow characteristics published by the USGS
are provided in two reports:

(1) The first is a statewide report completed in the early 1990's. It is USGS Water-Supply
Paper 2403, "Low-flow characteristics of streams in North Carolina" (Giese and Mason, 1993).
An online version of the report is available at http://pubs.usgs.gov/wsp/2403/report.pdf. The
report provides the low-flow characteristics (based on data through 1988) via regional relations
and at-site values for sites with drainage basins between 1 and 400 square miles and not
considered or known to be affected by regulation and/or diversions.

(2) The second is a statewide report published in March 2015. It is USGS Scientific
Investigations Report 2015-5001, "Low-flow characteristics and flow-duration statistics for
selected USGS continuous-record stream gaging stations in North Carolina through 2012"
(Weaver, 2015). The report is available online at http://pubs.usgs.gov/sir/2015/5001/. The
report provides updated low-flow characteristics and flow-duration statistics for 266 active (as of
2012 water year) and discontinued stream gages across the state where a minimum
of 10 climatic years discharge records were available for flow analyses.
Engineering Alternative Analysis
NPDES Permit Application
1515 South Tryon Street
Charlotte, North Carolina
ECS Project 49-1836A
December 1, 2016

4
Based on these two reports and the drainage area, the USGS proved the following information.

Drainage area – 26.4 square miles
Summer and winter 7Q10 - 3.9 cubic feet per second (cfs)
30Q2 flow statistics - 8.6 cfs
W7Q10 low-flow yield is 6.2 cfs,
Qavg unit flow yield is 34 cfs

Irwin Creek is a Class C waterway located in the Sugar Creek Watershed. Therefore, there are
no restrictions on watershed development or types of discharges.

A review of the Catawba River Basinwide Water Quality Plan dated September 2004 and
prepared by Dave Toms with the NC Department of Environmental Quality, Division of Water
Quality – Planning does not list any NPDES permitting strategies that limit wastewater
discharges to particular streams within the basin.

Irwin Creek is on the 303(d) list as an impaired waterway. There is a total maximum daily limit
(TMDL) for fecal coliform of 8.4 x 1012 cfu/100 ml. Based on the project description and site
contaminants, it is not anticipated that any fecal coliform will be discharged into the storm
sewer.

Endangered species are not present in the proposed discharge location.

Non-Municipal Flow Projections

Based on hydraulic conductivity tests and dewatering programs, it is estimated the dewatering
systems will generate a flow of up to 75 gallon per minute or 0.108 million gallons per day
(mgd). A similar system ECS is monitoring in downtown Charlotte has an average monthly flow
of 0.0103 mgd. Therefore it is ECS’s opinion that once the groundwater system equilibrates,
the estimated flow will drop.

Evaluation of technologically feasible alternatives

Alternative A - Connection to an Existing Wastewater Treatment System
Charlotte-Mecklenburg Utilities is responsible for the sanitary sewer system for the subject site.
The City has told ECS that they do not accept groundwater discharges to the sanitary sewer.
An email from Charlotte-Mecklenburg Utilities stating such is attached.

Alternative B - Land Application
Land application is an infeasible alternative in downtown Charlotte based on land constraints
within the city and with the understanding that the project will encompass the entire block.

Alternative C - Infiltration Galleries
An infiltration gallery is not feasible for the same reasons as stated above; in addition, the only
place an infiltration gallery could be placed would be in the sub-grade parking garage, which
has a base elevation below the water table. Obtaining offsite property to install the infiltration
would be infeasible.

Engineering Alternative Analysis
NPDES Permit Application
1515 South Tryon Street
Charlotte, North Carolina
ECS Project 49-1836A
December 1, 2016

5
Alternative D - In-Situ Groundwater Remediation Wells
In-situ groundwater remediation wells would not be a feasible alternative for this site because
the site is being dewatered and additional water would only add to the system. Obtaining offsite
property to install the infiltration would be infeasible.

Alternative E - Closed-Loop Groundwater Remediation Wells
In-situ groundwater remediation wells would not be a feasible alternative for this site because
the site is being dewatered and additional water would only add to the system.

Alternative F - Direct Discharge to Surface Waters
Direct discharge to the surface water is feasible for this site. A copy of a letter from the City of
Charlotte allowing the use of their stormwater system is attached. Storm sewers are located in
the vicinity of the site. The discharge to the storm drain will not create a hazardous condition
and the water will not generate oxygen consuming conditions. A schematic of the proposed
treatment system (both temporary and permanent) are attached along with a list of the
components and their estimated cost (Clean Harbors Proposal).

Alternative F, direct discharge to surface waters is the most viable option at this time.

If you have any questions or comments, please do not hesitate to contact the undersigned.

Local Governmental Form

The Local Governmental Form was sent via FedEX to both the Charlotte Mayor’s and
Mecklenburg County Manager’s offices. The form was accepted on November 18, 2016. As of
December 1, 2016, the Mayor’s office not responded and the County Manger’s office indicated
that they do not have jurisdiction over the project. A copy of the FedEx receipts and
Government form are attached.

Sincerely,

ECS Carolinas, LLC

John M. Stewart, P.G., CPG C. Brian Smith, P.G.
Principal Geologist Environmental Manager

Attachments:
Schematic of Treatment Systems
Sub-Slab Dewatering System, Plumbing, and Discharge Point
Clean Harbors System Components and Costs

Tetrasolv Filtration
1200 East 26th Street - Anderson, Indiana 46016 U.S.A
Phone [phone] Fax [phone] Email: [e-mail]
Revised Feb 2004
PRODUCT DATA SHEET
AFD SERIES FILTERS
MODEL AF-1000
The AF-1000 filter is a media filter vessel designed to treat liquid streams.
While the typical design application is a activated carbon adsorbtion unit,
the filter can easily accommodate many medias. Some applications
include:

•Dissolved Organic Removal (Activated Carbon)
•Suspended Solids Removal (Sand Filter)
•Dissolved Minerals (Softener Resin)
•Oil and Grease Removal (Organo-Clays)
•Dissolved and Precipitated Metals Removal
•Special Organics (Resin/Carbon Blend)
•Catalytic Reactor (Chlorine and Peroxide Removal)
•Bio-Remediation Contactor Unit
Overall Height 6’2” Vessel/Internal Piping Materials CS (SA-36) / SCH 40 PVC
Diameter 36” Internal Coating Polyamide Epoxy Resin
Inlet / Outlet (FNPT) 2” External Coating Epoxy Mastic
Drain / Vent (FNPT) OPT / 1/4” Maximum Pressure / Temp 40 PSIG / 140º F
GAC Fill (lbs) 1,000 Cross Sectional Bed Area 7 FT2
Shipping / Operational Weight (lbs) 1,500/3,100 Bed Depth/Volume 5 FT / 33 FT3
AF-1000 SPECIFICATIONS
PRESSURE DROP GRAPH
(As Filled - 8*30 GAC)
0
1
2
3
4
5
6
7
0 10203040506070
Flow Rate (GPM)Pressure Drop (PSIG)Inlet
Outlet
18” Access Hatch
Inlet / Outlet
UPUP234BC1AX2X3Y1Y2Y3Y4Y5Y6Y7X11P4P3P2P1B219B2 ParkingB201FIRE VESTB213ELEVATORLOBBYB227STORAGEB200STAIR 02B220STAIR 04B219B2 ParkingFPWH4" GW TO RETAIL ABOVE4" SANITARY TO RETAIL ABOVE3" GV FROM GI2.5" NP TO CISTERN2.5"2.5"NPNPNPNPNP2.5" NP FROM DEWATERINGTREATMENT SYSTEM (BYOTHERS)3" D2A3" D2A3" V DNFCO4" D7AFCOFCOP-090CP-090DSP-B2-3SP-B2-4SP-B2-54" D7A4" RW UP & DNCO2" V FROM BASIN,TURN DOWN WITHGOOSENECK FITTINGAND INSECT SCREEN2" PD2" PD UPOIL INTERCEPTOR (DEWATERING DRAINAGE)2" V DN2" V DN TO BASIN2.5" NP DN TO BASIN2" V DN TO BASIN2" PD DN TO BASIN2" PD UP4" W DN TO BASIN1" CW UP3" V UP4"4"2"2"3"3"2.5"3"2.5"2.5"2"2"3"4" RW UP & DN2"2.5" PD UPPDSP-B2-1SP-B2-20.75"AMTPTTNewcomb&BoydCONSULTANTS AND ENGINEERSCHECKED BY:DRAWN BY:DATE:PROJECT:REVISIONS:TEL. [phone] FAX [phone]CHARLOTTE, NORTH CAROLINA 28202MEMBERS OF THE AMERICAN INSTITUTE OF ARCHITECTS1A23456BCDECOPYRIGHT 2015 ALL RIGHTS RESERVEDPRINTED OR ELECTRONIC DRAWINGS ANDDOCUMENTATION MAY NOT BE REPRODUCEDIN ANY FORM WITHOUT WRITTEN PERMISSIONFROM LS3P ASSOCIATES LTD.227 WEST TRADE STREET SUITE 700WWW.LS3P.COMCopyright © 2016Consulting Engineering Group303 Peachtree Center Avenue, NESuite 525Atlanta, Georgia 30303-1277Firm License No. F-0312T 404 730-8400Contact:Paul J. Kitchens, PEN&B PROJECT:15N18611/18/2016 7:16:01 AMC:\Revit Projects\MEP_DIMENSIONAL PLACE r16_install.rvt2142111/22/2016MFHPJKPLUMBING B2LEVEL AREA CP-090CDIMENSIONALPLACEFOR CONSTRUCTION ONLY - 11/22/2016COUSINS 1/8" = 1'-0"P-090C1PLUMBING B2 LEVEL AREA CNABCDKEY PLANNo.DescriptionDate
1
AMerritt
From:JLair
Sent:Wednesday, November 16, 2016 10:27 AM
To:JStewart1
Subject:Fwd: Discharging to sewer
FYI

John S. Lair, P.G.
[phone]
[e-mail]
The best things in life, aren't things.

Begin forwarded message:
From: EFreeburg <[e-mail]>
Date: November 15, 2016 at 5:44:54 PM EST
To: JLair <[e-mail]>, BSmith <[e-mail]>
Subject: FW: Discharging to sewer
is this adequate?

ERIK H. FREEBURG, PE
ECS CAROLINAS, LLP T: 704-525-5152 D: 704-319-7806 C: 704-280-5625 F: 704-
357-0023 www.ecslimited.com

-----Original Message-----
From: Vershel, Amy [mailto:[e-mail]]
Sent: Tuesday, November 15, 2016 4:30 PM
To: EFreeburg
Cc: Neely, Kim; Gintert, Bill
Subject: Discharging to sewer

Erik,
As I told you by phone, discharging contaminated groundwater (after treatment) to the sanitary
sewer is not always allowed. I copied Bill Gintert on this email, as he may be better able to
answer your questions.
Thanks,
Amy

Sent from my iPhone
1
AMerritt
From:Zink, Robert <[e-mail]>
Sent:Tuesday, November 29, 2016 9:17 AM
To:John A. Core; Chien, Yi-Chen
Cc:Colin M. Jenest; Susan G. Freyler
Subject:RE: 4432 - Dimensional Place: FW: NPDES Permit for Discharge Water
Attachments:image001.png; image002.png; image003.png; image005.png; image006.jpg
It is okay as long as you have the permit. 

Robbey Zink, PE
City of Charlotte | Engineering & Property Management | Land Development Division
600 E. 4th St | Charlotte, NC 28277 | 704-336-5385 | www.charlottenc.gov/ld

From: John A. Core [mailto:[e-mail]]
Sent: Tuesday, November 29, 2016 9:08 AM
To: Zink, Robert; Chien, Yi-Chen
Cc: Colin M. Jenest; Susan G. Freyler
Subject: RE: 4432 - Dimensional Place: FW: NPDES Permit for Discharge Water

Robbey –  
We understand and thank you for the quick response.  I was unaware of the 15 day limitation.  The geotechnical 
engineer asked if I could follow‐up. 

He also asked if we could confirm via email that it is acceptable to discharge the treated ground water to the storm 
system.  Do you mind responding to this email to confirm, such that I can send it to him?  Thanks!  

John A. Core, PE, LEED AP
Project Manager 
COLEJENEST & STONE, P.A. 
D 704-971-4517 C 919-521-2262 
www.colejeneststone.com
Land Planning + Landscape Architecture + Civil Engineering + Urban Design

This email is for the recipient only. It may contain confidential information. Unauthorized use is prohibited.

From: Zink, Robert [mailto:[e-mail]]  
Sent: Tuesday, November 29, 2016 7:43 AM 
To: John A. Core <[e-mail]>; Chien, Yi‐Chen <[e-mail]> 
Cc: Colin M. Jenest <[e-mail]>; Susan G. Freyler <[e-mail]> 
Subject: RE: 4432 ‐ Dimensional Place: FW: NPDES Permit for Discharge Water 

2
We saw the letter or permit someone is supposed to sign.  The letter actually called for the City Manager to sign it.  We 
told the person who brought it to us that no one here would agree to sign the letter until the plans are approved.   The 
signature was verifying the plans met all City requirements and until the plan is approved, we are not willing to have 
anyone sign it.  The permit language also says if it is not signed by sometime around the 1st of December it is 
automatically approved, so I’m not sure why they are in a rush to have someone sign it. 

Robbey Zink, PE
City of Charlotte | Engineering & Property Management | Land Development Division
600 E. 4th St | Charlotte, NC 28277 | 704-336-5385 | www.charlottenc.gov/ld

From: John A. Core [mailto:[e-mail]]
Sent: Monday, November 28, 2016 6:25 PM
To: Zink, Robert; Chien, Yi-Chen
Cc: Colin M. Jenest; Susan G. Freyler
Subject: 4432 - Dimensional Place: FW: NPDES Permit for Discharge Water

Robbey/Emily –  
I hope you are doing well.  I got an email forwarded to me from the geotechnical engineer on the job referenced above 
and he noted that the state is waiting for the City to denote that the project is “properly zoned and that the water can 
be discharged to the storm.”   

I know that we had already discussed discharging the treated ground water to the storm system (which was preferred 
over discharging overland or to the sanitary system), but wasn’t sure if you needed to send an email to one of the 
reviewers at the state regarding the zoning.  Are you familiar with this requirement?  
John A. Core, PE, LEED AP
Project Manager 
COLEJENEST & STONE, P.A. 
D 704-971-4517 C 919-521-2262 
www.colejeneststone.com
Land Planning + Landscape Architecture + Civil Engineering + Urban Design

This email is for the recipient only. It may contain confidential information. Unauthorized use is prohibited.

From: MPlotkin [mailto:[e-mail]]  
Sent: Monday, November 28, 2016 4:01 PM 
To: Frost, Jason <[e-mail]> 
Cc: Bob Bachtler <[e-mail]>; JStewart1 <[e-mail]> 
Subject: RE: NPDES 

Jason, 

I know Clean Harbors will haul water.  I’m not sure if there are other companies, but I will ask around.  John may know of 
one.  And yes, once it is cleaned it can be disposed of elsewhere, but I am not familiar with all the rules. 

3
The feedback we are getting is that the DEQ is waiting on confirmation from the City that the project is properly zoned 
and that the water can be discharged into the storm.  Once they receive the confirmation it will go to committee for 
approval, and the permit will be written shortly after that.  We have tried to tie down the hard committee date, but the 
state keeps changing their minds. 

Wish we had a better update, but we are simply dealing with the State bureaucracy. 

Let me know if you need anything else. 

Marc F. Plotkin, P.E.
Principal Engineer 

ECS Carolinas, LLP 1812 Center Park Drive, Suite D, Charlotte, NC 28217
T: 704-525-5152 D: 704-409-7750 C: 704-451-9794 F: 704-357-0023 www.ecslimited.com

Concord Office 7144 Weddington Road, Suite 180, Concord, NC 28027

Confidential/proprietary message/attachments. Delete message/attachments if not intended recipient

From: Frost, Jason [mailto:[e-mail]]
Sent: Monday, November 28, 2016 3:28 PM
To: MPlotkin
Cc: Bob Bachtler; JStewart1
Subject: RE: NPDES

Marc, 

Please let us know as soon as you have any further updates.  Do you know of any firms that haul off treated water?  I 
would assume once we treat it and clean it the water could be disposed of elsewhere?  I am just worried of trying to 
hold everything onsite because I don’t have any idea how much we are talking about.  If we start pumping 30,000 
gallons a day that adds up quickly. 

Thanks, 

Jason Frost
VICE PRESIDENT, DEVELOPMENT | Cousins Properties Incorporated
P: 404.407.1892 | C: 404.488.8864

Administrative Assistant: Bridgette Wright | P: 404.407.1824 | E: [e-mail]
191 Peachtree Street, NE, Suite 500 | Atlanta, GA 30303

From: Frost, Jason  
Sent: Tuesday, November 22, 2016 9:16 AM 
To: MPlotkin <[e-mail]> 
Cc: Bob Bachtler <[e-mail]>; JStewart1 <[e-mail]> 
Subject: Re: NPDES 

That is very disheartening and I just don't understand how this process has gotten so sideways.  Never had this much of 
an issue.  We need this to happen quickly. 
4

Thanks, 

Jason Frost 

Sent from my iPhone. Please excuse any spelling errors. 

On Nov 22, 2016, at 8:14 AM, MPlotkin <[e-mail]> wrote: 
Jason, 

We thought we had made progress; however the state did not issue the permit last week and they are 
indicating it will not be issued for public notice until mid‐December (that would push dewatering 
discharge back to mid to late January).  We are seeing what can be done to accelerate this or trying to 
get hard confirmation from NCDEQ that the dates won’t slide again. 

I will touch base as soon as we get an update. 

Best Regards, 

Marc F. Plotkin, P.E. 
Principal Engineer 

ECS Carolinas, LLP 1812 Center Park Drive, Suite D, Charlotte, NC 28217 
T: 704-525-5152 D: 704-409-7750 C: 704-451-9794 F: 704-357-0023 www.ecslimited.com 

Concord Office 7144 Weddington Road, Suite 180, Concord, NC 28027 

Confidential/proprietary message/attachments. Delete message/attachments if not intended recipient 

From: Frost, Jason [mailto:[e-mail]]
Sent: Monday, November 21, 2016 3:29 PM
To: MPlotkin
Cc: Bob Bachtler
Subject: NPDES 

Marc, 

Hope you had a great weekend. When we spoke last week you felt like we had made
progress with the State and that they were in the last phase which was a public 30 day
review. Could you please provide an update? 

Thanks, 

Jason Frost
VICE PRESIDENT, DEVELOPMENT | Cousins Properties Incorporated
P: 404.407.1892 | C: 404.488.8864

Administrative Assistant: Bridgette Wright | P: 404.407.1824 | E: [e-mail]
191 Peachtree Street, NE, Suite 500 | Atlanta, GA 30303

<image001.png><image002.jpg> 
1
AMerritt
From:Zink, Robert <[e-mail]>
Sent:Tuesday, November 29, 2016 7:43 AM
To:John A. Core; Chien, Yi-Chen
Cc:Colin M. Jenest; Susan G. Freyler
Subject:RE: 4432 - Dimensional Place: FW: NPDES Permit for Discharge Water
Attachments:image001.png; image002.png; image003.png; image005.png; image007.jpg
We saw the letter or permit someone is supposed to sign.  The letter actually called for the City Manager to sign it.  We 
told the person who brought it to us that no one here would agree to sign the letter until the plans are approved.   The 
signature was verifying the plans met all City requirements and until the plan is approved, we are not willing to have 
anyone sign it.  The permit language also says if it is not signed by sometime around the 1st of December it is 
automatically approved, so I’m not sure why they are in a rush to have someone sign it. 

Robbey Zink, PE
City of Charlotte | Engineering & Property Management | Land Development Division
600 E. 4th St | Charlotte, NC 28277 | 704-336-5385 | www.charlottenc.gov/ld

From: John A. Core [mailto:[e-mail]]
Sent: Monday, November 28, 2016 6:25 PM
To: Zink, Robert; Chien, Yi-Chen
Cc: Colin M. Jenest; Susan G. Freyler
Subject: 4432 - Dimensional Place: FW: NPDES Permit for Discharge Water

Robbey/Emily –  
I hope you are doing well.  I got an email forwarded to me from the geotechnical engineer on the job referenced above 
and he noted that the state is waiting for the City to denote that the project is “properly zoned and that the water can 
be discharged to the storm.”   

I know that we had already discussed discharging the treated ground water to the storm system (which was preferred 
over discharging overland or to the sanitary system), but wasn’t sure if you needed to send an email to one of the 
reviewers at the state regarding the zoning.  Are you familiar with this requirement?  
John A. Core, PE, LEED AP
Project Manager 
COLEJENEST & STONE, P.A. 
D 704-971-4517 C 919-521-2262 
www.colejeneststone.com
Land Planning + Landscape Architecture + Civil Engineering + Urban Design

This email is for the recipient only. It may contain confidential information. Unauthorized use is prohibited.

2
From: MPlotkin [mailto:[e-mail]]  
Sent: Monday, November 28, 2016 4:01 PM 
To: Frost, Jason <[e-mail]> 
Cc: Bob Bachtler <[e-mail]>; JStewart1 <[e-mail]> 
Subject: RE: NPDES 

Jason, 

I know Clean Harbors will haul water.  I’m not sure if there are other companies, but I will ask around.  John may know of 
one.  And yes, once it is cleaned it can be disposed of elsewhere, but I am not familiar with all the rules. 

The feedback we are getting is that the DEQ is waiting on confirmation from the City that the project is properly zoned 
and that the water can be discharged into the storm.  Once they receive the confirmation it will go to committee for 
approval, and the permit will be written shortly after that.  We have tried to tie down the hard committee date, but the 
state keeps changing their minds. 

Wish we had a better update, but we are simply dealing with the State bureaucracy. 

Let me know if you need anything else. 

Marc F. Plotkin, P.E.
Principal Engineer 

ECS Carolinas, LLP 1812 Center Park Drive, Suite D, Charlotte, NC 28217
T: 704-525-5152 D: 704-409-7750 C: 704-451-9794 F: 704-357-0023 www.ecslimited.com

Concord Office 7144 Weddington Road, Suite 180, Concord, NC 28027

Confidential/proprietary message/attachments. Delete message/attachments if not intended recipient

From: Frost, Jason [mailto:[e-mail]]
Sent: Monday, November 28, 2016 3:28 PM
To: MPlotkin
Cc: Bob Bachtler; JStewart1
Subject: RE: NPDES

Marc, 

Please let us know as soon as you have any further updates.  Do you know of any firms that haul off treated water?  I 
would assume once we treat it and clean it the water could be disposed of elsewhere?  I am just worried of trying to 
hold everything onsite because I don’t have any idea how much we are talking about.  If we start pumping 30,000 
gallons a day that adds up quickly. 

Thanks, 

Jason Frost
VICE PRESIDENT, DEVELOPMENT | Cousins Properties Incorporated
P: 404.407.1892 | C: 404.488.8864

Administrative Assistant: Bridgette Wright | P: 404.407.1824 | E: [e-mail]
191 Peachtree Street, NE, Suite 500 | Atlanta, GA 30303
3

From: Frost, Jason  
Sent: Tuesday, November 22, 2016 9:16 AM 
To: MPlotkin <[e-mail]> 
Cc: Bob Bachtler <[e-mail]>; JStewart1 <[e-mail]> 
Subject: Re: NPDES 

That is very disheartening and I just don't understand how this process has gotten so sideways.  Never had this much of 
an issue.  We need this to happen quickly. 

Thanks, 

Jason Frost 

Sent from my iPhone. Please excuse any spelling errors. 

On Nov 22, 2016, at 8:14 AM, MPlotkin <[e-mail]> wrote: 
Jason, 

We thought we had made progress; however the state did not issue the permit last week and they are 
indicating it will not be issued for public notice until mid‐December (that would push dewatering 
discharge back to mid to late January).  We are seeing what can be done to accelerate this or trying to 
get hard confirmation from NCDEQ that the dates won’t slide again. 

I will touch base as soon as we get an update. 

Best Regards, 

Marc F. Plotkin, P.E. 
Principal Engineer 

ECS Carolinas, LLP 1812 Center Park Drive, Suite D, Charlotte, NC 28217 
T: 704-525-5152 D: 704-409-7750 C: 704-451-9794 F: 704-357-0023 www.ecslimited.com 

Concord Office 7144 Weddington Road, Suite 180, Concord, NC 28027 

Confidential/proprietary message/attachments. Delete message/attachments if not intended recipient 

From: Frost, Jason [mailto:[e-mail]]
Sent: Monday, November 21, 2016 3:29 PM
To: MPlotkin
Cc: Bob Bachtler
Subject: NPDES 

Marc, 

Hope you had a great weekend. When we spoke last week you felt like we had made
progress with the State and that they were in the last phase which was a public 30 day
review. Could you please provide an update? 
4

Thanks, 

Jason Frost
VICE PRESIDENT, DEVELOPMENT | Cousins Properties Incorporated
P: 404.407.1892 | C: 404.488.8864

Administrative Assistant: Bridgette Wright | P: 404.407.1824 | E: [e-mail]
191 Peachtree Street, NE, Suite 500 | Atlanta, GA 30303

<image001.png><image002.jpg> 

Clean Harbors – Remediation Technologies
3300 US-131 North
P.O. Box 968
Kalkaska, MI 49646-0968
231.258.8014 office
231.258.6993 fax
www.cleanharbors.com
“People and Technology Creating a Better Environment”

VIA ELECTRONIC MAIL

November 15, 2016

Bobby Kinsey
Holder Construction Group, LLC
615 South College Street
Charlotte, NC 28202

Re: Dimensional Place Dewatering

Dear Mr. Kinsey:

Thank you for inviting us to submit a proposal for water treatment services for under-slab drainage during and after
construction of the “Dimensional Place”. Clean Harbors is regularly engaged in providing, operating, and
maintaining systems to treat contaminated groundwater and keep water discharged to sanitary sewers within
NDPES and local permit limitations.

The project includes two phases. The first phase will be the rental of water treatment equipment to treat water
produced in dewatering operations during construction. The second phase will be the sale and installation of a
permanent treatment system to treat groundwater produced by the under-slab drainage system indefinitely.

Analytical shows the water to be contaminated with low levels of the following compounds:
 1,1-Dichloroethane
 1,1-Dichloroethylene
 1,2-Dichloroethane
 Chloroform
 Tetrachloroethylene
 Trichloroethylene

Clean Harbors’ approach in both phases will be to use a combination of textile and media filters to remove both
suspended solids and dissolved organics from the groundwater.

I. System Description

Equipment rental will consist of trailer-mounted, mobile equipment capable of treating water at a flow rate of 75
gallons per minute (gpm). Equipment will be provided with a preliminary supply of filter bags and the initial load
of media. Clean Harbors staff will deliver the equipment to the site, make connections to contractor-supplied sump
pumps, test operation, and instruct Holder staff on monitoring and bag filter change-outs. The cost for this phase
includes the provision of O&M manual and field staff training. The equipment will include, at a minimum:

 PTS-80 Mobile Treatment Unit with multi-bag filter housing, lead and lag 2,000# Carbon vessels

“People and Technology Creating a Better Environment”

 4,000# Granular Activated Carbon for contaminant removal and initial supply of 100 filter bags
 3” and 4” hose, pipe, fittings, and flowmeter to allow connection to submersible pumps, vessel bypass,
backflush, and discharge to outfall, and metering capabilities.
 Analogue instrumentation for determining backflush and bag change events.

Pricing includes personnel, travel, per diems, materials, equipment, and supplies needed to provide the treatment
system described above. The total mobilization, setup, rental, media, demobilization, and media disposal costs for
a six-month rental term would be $34,118.

Phase One Pricing
1. Temporary System Mobilization (LS)

$6,564
2. Temporary Treatment System Setup (LS)

$2,300
3. PTS-80 Treatment System Rental (MO) $2,134/MO x 6 MO

$12,805
4. Filtration Media (Carbon and 100 Bag Filters)

$6,120
5. Temporary System Demobilization and Media Disposal $6,329
Six Month Total $34,118

In addition to the costs for materials and installation for the permanent system, Clean Harbors would offer media
change-out services for $5,977 per change-out (includes 2,000# media). This would include the services of two
field technicians to mobilize to the facility from a North Carolina branch, vacuum spent media from vessels, replace
media, demobilize, and dispose of spent media.

II. Assumptions

Kindly be aware, this proposal rests on the following assumptions:

 The treatment system is designed to remove constituents on the analytical provided to Clean Harbors.
Removal of other contaminants not on this analytical report is not included in this proposal, and may
involve revised system design and additional costs.
 Submersible pumps installed in the sump (by others) will be sufficient to send water through the treatment
system to the outfall in the sanitary sewer. Additional pumps for transfer/boosting are not provided.
 The suspended solids produced by dewatering are expected to be largely removed by the grit chamber and
oil-water separator (provided by others), and that TSS will be <20ppm at the influent to the treatment
system. If TSS is higher, additional equipment not included in this quote, may be required.
 Clean Harbors will not provide hose or pipe to connect to outfall that is greater than 200’ from treatment
system.
 The general contractor will construct the outfall structure into the sanitary sewer.
 Discharge permits, sampling, and reporting, if required, to be provided by Holder or third party.
 The treatment system is priced with 100 bag filters each. If more are required during the course of system
operation, they can be supplied by Clean Harbors (shipping included) for $6.50/ea.
 Charges for media disposal assume that the material is profiled as non-hazardous.

“People and Technology Creating a Better Environment”

All work will be performed in accordance with the terms and conditions outlined by a Master Service Agreement
between Clean Harbors and Holder Construction Group, LLC.

Clean Harbors will begin mobilization of equipment and crews once a Purchase Order is issued. Thank you for the
opportunity to provide this proposal. Please call David Grote at [phone] if you have any questions or would
like to discuss the proposal further.

Sincerely,
David R. Grote, PE
Field Project Manager

cc:
Mike Leahy, Clean Harbors
Tony Fisher, Clean Harbors

1
AMerritt
From:[e-mail]
Sent:Friday, November 18, 2016 10:40 AM
To:AMerritt
Subject:FedEx Shipment 777734988618 Delivered
TargetType:project
Your package has been delivered
Tracking # 777734988618

Ship date:
Thu, 11/17/2016
Amberly Merritt
Greensboro, NC 27407
US

Delivered

Delivery date:
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am
Mayor Jennifer Watson
Roberts
Office of the Mayor
600 East 4th Street
CHARLOTTE, NC 28202
US

Shipment Facts
Our records indicate that the following package has been delivered.

Tracking number: 777734988618
Status: Delivered: 11/18/2016 10:38
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Reference: 49-1836A Govt Review
Signed for by: P.PRICE
Delivery location: CHARLOTTE, NC
Delivered to: Receptionist/Front Desk
Service type: FedEx Priority Overnight
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Number of pieces: 1
Weight: 1.00 lb.
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AMerritt
From:[e-mail]
Sent:Friday, November 18, 2016 10:42 AM
To:AMerritt
Subject:FedEx Shipment 777735035877 Delivered
TargetType:project
Your package has been delivered
Tracking # 777735035877

Ship date:
Thu, 11/17/2016
Amberly Merritt
Greensboro, NC 27407
US

Delivered

Delivery date:
Fri, 11/18/2016 10:39
am
Ms. Dena R. Diorio
Charlotte Mecklenburg Gov't
Center
600 East 4th Street
CHARLOTTE, NC 28202
US

Shipment Facts
Our records indicate that the following package has been delivered.

Tracking number: 777735035877
Status: Delivered: 11/18/2016 10:39
AM Signed for By:
S.CHERRY
Reference: 49-1836-A Govt Review Form
Signed for by: S.CHERRY
Delivery location: CHARLOTTE, NC
Delivered to: Receptionist/Front Desk
Service type: FedEx Priority Overnight
Packaging type: FedEx Pak
Number of pieces: 1
Weight: 1.00 lb.
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Associated return tracking 790586961047

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number(s):
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