NC0089702_Fact Sheet_20180124

DENR / DWR / NPDES
EXPIDITED FACT SHEET - NEW NPDES PERMIT DEVELOPMENT
NPDES Permit NCO089702
Facility Information
Applicant/Facility Name
Terwilliger Pappas — Solis Brightleaf Apartments
Groundwater Remediation (GW-REM)
Applicant Address
510 Glenwood Avenue, Suite 317, Raleigh 27603
Facility Address
1001 West Main Street, Durham 27701
Permitted Flow (MGD)
0.027
Type of Waste
Treated Groundwater excavation dewatering
Facility Class
Physical/Chemical
I County
Durham
Facility Status
Renewal
I Regional Office
I RRO
Stream Characteristics
Receiving Stream
UT to Ellerbe Creek
Stream
Classification
WS-V; NSW
Stream Segment
27-5-(03)
Drainage basin
Neuse River Basin
Summer 7Q10 (cfs)
0.0
Subbasin
03-04-01
Winter 7Q10 (cfs)
0.0
Use Supporting
Yes
30Q2 (cfs)
0.0
303(d) Listed
NSW
Average Flow (cfs)
0.0
State Grid
IWC (%)
100 % [storm -sewer
discharge]
USGS Topo Quad
Pro-ject SurnmM — The Applicant proposes [via consultant Mid -Atlantic Engineering and
Environmental Solutions] to develop several contiguous real estate parcels into a 1.45-acre apartment
complex with subterranean parking. Proposed excavation dewatering will discharge to a local stormdrain
under zero -flow receiving -stream conditions (7Q10/30Q2 = 0.0 cfs). The Division concurs that this
discharge alternative is the most viable based on feasibility and cost, as outlined in your Engineers
Alternatives Analysis (EAA) included with your application.
The Applicant proposes to install a French -drain dewatering system to service the entire site. This gravity
drain is an unlined gravel trench to a depth of 2 feet, fitted at its bottom with a per 2-inch-diameter
PVC drainpipe [see application, Figure C5.10]. Because this trench and pipe are open to the environment, it
will gather groundwater, but to a depth of two -feet only.
The proposed skid -mounted wastewater -treatment system is portable. The Applicant intends to dewater by
pumping the French drain closest to a given excavation. If preconstruction requires excavating deeper than
two (2) feet, DWR assumes the Permittee will dewater directly from the excavation, as needed.
Dischar-ee Conditions — A wastewater treatment system shall suffice to meet surface water quality
(SWQ) stream standards. Wastewater design flow proposes to discharge 7 days/week, three (3) discharges
per day, each for —30 minutes @ 0.55 gpm = 49.5 gpd [0.00005 MGD]. The proposed treatment system
employs a bag filter, ion -exchange unit(s) [for metals removal] and two (2) each activated liquid phase
carbon canisters (see PRM's schematic P&ID-2). All treated effluent will be routed to Durham County's
Storm -Sewer System, via Outfall 001 (see Mid -Atlantic's Drawing No. 1); treated wastes to be conveyed by
stormdrain to a UT to Ellerbe Creek (see City of Durham approval letter dated April 13, 2017).
The Division understands that construction includes a proposed two -deck parking structure that will require
permanent dewatering facilities below the natural water table. Prior to installing permanent dewatering
Page 1 of 2

facilities, the Applicant must submit an updated treatment -system design with plans and specifications, and
apply to modify this permit as needed (see Supplement to Permit Cover Sheet).
Parameters Of COricern (POCS) — Because site -assessment analyses detected the present of
chlorinated solvents, this site does not qualify for General Permit NCG510000. Parameters of Concern
include a list of volatile and semi -volatile organic compounds, metals and other POCs identified during site
assessment [see application Tables 1, 2, 3.1 and 3.3]. POCs include metals and compounds detected at
concentrations exceeding their respective surface -water quality (SWQ) standards. Parameters exceeding
their standard are permit -limited equal to the standard [as required under zero -flow receiving -stream
conditions]. Others are included as "monitoring only" or limited in accord with applicable permitting
strategies and secondary -treatment technologies [see permit section A. (1.)].
Because there are no effluent data to date, the permit provides the Permittee an option, after establishing a
reasonable database, to petition the DWR to reconsider a given parameter's limits and/or monitoring
frequency, as data may warrant [see permit section A. (1), Footnotes].
"A - Reasonable Potential Analysis (RPA) - RPA was not conducted because there are no data to date
other than analyses of untreated samples collected for initial site assessment.
WET Testing — Whole Effluent Toxicity (WET) - Acute, 24-hour Pass/Fail (Monthly) is
required using sp Pimephales promelas [TGE3E]. WET test samples shall be collected
concurrently weer samples to aid in diagnosing WET -Test failure, if any.
Joe R. Corpor_ddr-1:-G., NPDES Unit. 24Jan2018
f
Page 2 of 2

DENR / DWR / NPDES
EXPIDITED FACT SHEET - NEW NPDES PERMIT DEVELOPMENT
NPDES Permit NCO089702
Facility Information
Applicant/Facility Name
Terwilliger Pappas — Solis Brightleaf Apartments
Groundwater Remediation (GW-REM)
Applicant Address
510 Glenwood Avenue, Suite 317, Raleigh 27603
Facility Address
1001 West Main Street, Durham 27701
Permitted Flow (MGD)
0.027
Type of Waste
Treated Groundwater excavation dewatering
Facility Class
Physical/Chemical
County
Durham
Facility Status
Renewal
Regional Office
RRO
Stream Characteristics
Receiving Stream
UT to Ellerbe Creek
Stream
Classification
WS-V; NSW
Stream Segment
27-5-(03)
Drainage basin
Neuse River Basin
Summer 7Q10 (cfs)
0.0
Subbasin
03-04-01
Winter 7Q10 (cfs)
0.0
Use Supporting
Yes
30Q2 (cfs)
0.0
303(d) Listed
NSW
Average Flow (cfs)
0.0
State Grid
IWC (%)
100 % [storm -sewer
discharge]
USGS Topo Quad
Durham (71
Project SArilrilaI y — The Applicant proposes [via consultant Mid -Atlantic Engineering and
Environmental Solutions] to develop several contiguous real estate parcels into a 1.45-acre apartment
complex with subterranean parking. Proposed excavation dewatering will discharge to a local stormdrain
under zero -flow receiving -stream conditions (7Q10/30Q2 = 0.0 cfs). The Division concurs that this
discharge alternative is the most viable based on feasibility and cost, as outlined in your Engineers
Alternatives Analysis (EAA) included with your application.
The Applicant proposes to install a French -drain dewatering system to service the entire site. This gravity
drain is an unlined gravel trench to a depth of 2 feet, fitted at its bottom with a perforated 2-inch-diameter
PVC drainpipe [see application, Figure C5.10]. Because this trench and pipe are open to the environment, it
will gather groundwater, but to a depth of two -feet only.
The proposed skid -mounted wastewater -treatment system is portable. The Applicant intends to dewater by
pumping the French drain closest to a given excavation. If preconstruction requires excavating deeper than
two (2) feet, DWR assumes the Permittee will dewater directly from the excavation, as needed.
DiSchgge Conditions — A wastewater treatment system shall suffice to meet surface water quality
(SWQ) stream standards. Wastewater design flow proposes to discharge 7 days/week, three (3) discharges
per day, each for —30 minutes @ 0.55 gpm = 49.5 gpd [0.00005 MGD]. The proposed treatment system
employs a bag filter, ion -exchange unit(s) [for metals removal] and two (2) each activated liquid -phase
carbon canisters (see PRM's schematic P&ID-2). All treated effluent will be routed to Durham County's
Storm -Sewer System, via Outfall 001 (see Mid -Atlantic's Drawing No. 1); treated wastes to be conveyed by
stormdrain to a UT to Ellerbe Creek (see City of Durham approval letter dated April 13, 2017).
The Division understands that construction includes a proposed two -deck parking structure that will require
permanent dewatering facilities below the natural water table. Prior to installing permanent dewatering
Page 1 of 2

facilities, the Applicant must submit an updated treatment -system design with plans and specifications, and
apply to modify this permit as needed (see Supplement to Permit Cover Sheet).
Parameters of Concern (POCS) — Because site -assessment analyses detected the present of
chlorinated solvents, this site does not qualify for General Permit NCG510000. Parameters of Concern
include a list of volatile and semi -volatile organic compounds, metals and other POCs identified during site
assessment [see application Tables 1, 2, 3.1 and 3.3]. POCs include metals and compounds detected at
concentrations exceeding their respective surface -water quality (SWQ) standards. Parameters exceeding
their standard are permit -limited equal to the standard [as required under zero -flow receiving -stream
conditions]. Others are included as "monitoring only" or limited in accord with applicable permitting
strategies and secondary -treatment technologies [see permit section A. (1.)].
Because there are no effluent data to date, the permit provides the Permittee an option, after establishing a
reasonable database, to petition the DWR to reconsider a given parameter's limits and/or monitoring
frequency, as data may warrant [see permit section A. (1.), Footnotes].
RPA - Reasonable Potential Analysis (RPA) - RPA was not conducted because there are no data to date
other than analyses of untreated samples collected for initial site assessment.
WET TeStin - Whole Effluent Toxicity (WET) - Acute, 24-hour Pass/Fail (Monthly) is
required using sp e Pimephales promelas [TGE3E]. WET test samples shall be collected
concurrently WIA o ier samples to aid in diagnosing WET -Test failure, if any.
Joe R.
, NPDES Unit.
24Jan2018
Page 2 of 2

Quote 321
Issue Date: 2017-05-10 Estimated Ship Date: 2017-WIO
Sold To
Mid -Atlantic Associates
409 Roger View Ct.
Raleigh, NO 27610
[phone]
Sales
Mel
Ship To
Mid -Atlantic Associates
Attn:
409 Rogers View Ct.
Raleigh, NO 27610
1 Custom Remediation System
PRM W11 manufacture and install a customized remedlation
package for peT�ggroundwater collected form fhe French Drain
System at Ow zefersnced facility.
The system will consists of.-
1/2HP sump pump with automated level control float - 120VAC
300 gallon vertical equalization tank with HL switch and Pump
Ore/Off float switch
1 HP Centrifugal Transfer pump, 206-23a240V 3phase
(1) 304 SS - 2"Wo bag fllterhousing. ..
(2) LP55 RGAC low pressure carbon filtration vessels with
camlock connections and hose.
(1) System plumbing integration with Sch 80 PVC piping and PRV
valve for carbon pressure control
(1) High pressure alarm switch
(1) System ,ntrol panel - Nema 3R, UL Listed for 1201230V
3phase operailn
-Includes HOA switches for pumps
-includes Omni -beacon alarm telemetry monitor with 1 year of
service
-IS circuitry
Package is fully integrated, wired and tested on a common
process skid. includes all required valves, gauges and sample
ports
Package is heat traced for unclassirled zones.
Page 1 l2
Generated 2017-05-1014.02.48
Mel PWdpe
Phone;919-246-4506
Phone:[phone]
Email: mel.phillps@prm-net.00m
Continued on next page

Mel Phillips
Phone: [phone]
Phone: [phone]
Email: [e-mail]
Quote 321
I Ln # ] Quantity] Description I Unit Price] Total I
K
4
61
7
Upon placement of an order, an engineering submittal will be
generated for the project for system approval prior to the build.
Option 1
System installation and electrical terminations indudrng
pemutting. Includes delivery of the packaged system
Option 2
Upgrade control system to include Web600 Telemetry monitor
with active pressure monlioring, taint to email and remote log in
capabiff es. Also provides totalization from Effluent ToWIzer. Unit
allows for remote staWremote stop and also provides data
logging for event based actions as well as analog data.
Option 3
Provide (1) HP200 IX Filter prechaiged with Resin -Tech CG-B
universal ion exchange resin. Used typically for the removal of
iron and other inorganic minerals in the streamthis adder
includes backwash piping for the IX Tiber. For a low f ow
application, this option may not be required. The unit will also be
,provided with b ss,pRing in the event levels are found to be
safe and the unit be easily bypassed
Option 4
Provide a UL Certification of Meer entire packaged Treatment Skid
Option 5
PRM will provide a 3 sided chain linkfence, S'tap with black out
screens for security purposes.
1, SALES TAX
To be determined at time of ordder. Price is not included in the
base pricing above.
The below signed authorizes Product Recovery Management to prowrokonshuct aafior rent the items as
Noted. Terms for this job are payment due Net 90 days from receipt of invoice unless oBrorwise noted. Service
Charges of i Z% per month will he duged on all overdue invoices. N legal action is required to collect debts.
rent egress to pay PFhM reasonable attorney fees. This agreement Shall he govemed by and conshued in
accordance with the laws of the State of North Carorma and verve shall be proper and personal jurisdiction
had in Durham Canty. North CaroNna. Sales and Use Taxes are wed in the fo&w4 g States: FL. NC. and
NY unless exempted. Sales A Use Tax In all other states Is the responsibility of the purchaser. PRM given
notice that it may use the tradeneme of PRMFLTRATION and recipients are duly, informed of such.
Authorized And Accepted By (Signature) Date Of Acceptance
Page 212
Generated: 2017-05-10 14:02A8
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Vf NY,
Subtotal:
Tax:
Shipping:
Total:
Purchase Orderlf Or Project Reference