SW3191101_Add Info_20200204

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
BRIAN WRENN
Acting Director
Steve Farmartino, PE
1927 S Tryon Street Suite 310
Charlotte, NC 28203
NORTH CAROLINA
Environmental Quality
February 4, 2020
Subject: Request for Additional Information
Stormwater Permit No. SW3191101
Cambridge Village Multifamily
Lincoln County
Dear Mr. Farmartino:
The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater
Management Permit Application for the subject project on January 16, 2020. A review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
1. Original Comment 6 —"Please complete a Supplement-EZ Form for each SCM."The
provided hard copy of the Supplement-EZ Form must contain an original signature.
2. Original Comment 11 — "Please provide official documents showing the affiliation of the
person listed in Section III, ]a with North Pilot Road, LLC." See below.
3. Original Comment 16b — "The provided forebay is smaller than 15% of the main pool
volume (Wet Pond MDC 5)." The provided forebay calculation for wet pond #2 is
incorrect. It is impossible to get 3,491 cf of storage between elevations 774 (Top of
sediment storage elevation) and 776 (Cross -sectional area of 776 is 1,608 sf. 1,608 sf * 2
ft < 3,491 cf). Please revise the forebay volume calculation and update any effected
aspects of the submittal.
4. Original Comment 16c — "The design volume drawdown time is too slow (Wet Pond
MDC 7)." The WQ elevation used for wet pond 2 is incorrect. The WQ elevation should
be based off of the WQv (from the 1" design storm). Per the provided stage storage tables
in the calculations, the design volume 17,624 cf should fill the temporary ponding zone
of the wet pond up to about 778 ft (Stage -storage table shows the cumulative storage
volume at elevation 778 as 17,770 cf). If the correct ponding elevation is used in the
orifice equation, the drawdown time is too fast. Please revise.
North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
512 North Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612
NoarHcnaouNa �
Department menvinmammalQuaifty /� 919.707.9200

5. Please select one of the following options for Section III, 1:
a. Regardless of who the Applicant is...
i. If Prestige Acquisitions LLC is owned by/a subsidiary of BBC Cambridge
LLC, please provide documentation from the NC Secretary of State
showing this arrangement. If this is the case, BBC Cambridge LLC may
sign on behalf of Prestige Acquisitions LLC.
ii. If Prestige Acquisitions LLC is not owned by/a subsidiary of BBC
Cambridge LLC, please change all references of "BBC Cambridge LLC"
and "Steve Bailey" in the Application to "Prestige Acquisitions LLC" and
"Brian Mahoney" respectively. Please also provide verification of name
and title from the NC Secretary of State for the person signing on behalf of
Prestige Acquisitions LLC.
b. The Applicant is the Property Owner— Per the prior comment, Prestige
Acquisitions LLC/BBC Cambridge LLC is the owner. If you would like this to be
the Applicant, please do the following:
i. Provide verification of name and title from the NC Secretary of State for
the person signing on behalf of Prestige Acquisitions LLC/BBC
Cambridge LLC (Brian Mahoney/Steve Bailey).
ii. List their name (Brian Mahoney/Steve Bailey) and position in Section III,
la of the Application. This must match what is shown on the NC Secretary
of State verification information provided.
iii. List their contact information in Section III, lb of the Application.
iv. Check only "Owner" off in Section III, lc of the Application.
v. Section III, 2 is no longer required.
vi. Section IX is no longer required.
vii. Have the Applicant (Brian Mahoney/Steve Bailey) fill out and sign
Section X.
viii. Have the O&M Agreement Form filled out and signed by the responsible
party, the property owner (Brian Mahoney/Steve Bailey).
c. The Applicant is the Purchaser — Based on our 1/30/20 phone conversation
(Correct me if I'm wrong), ArchCo Residential LLC is the purchaser (As
indicated on the provided pending sales agreement). If you would like this to be
the Applicant, please do the following:
i. Provide verification of name and title from the NC Secretary of State for
the person signing on behalf of ArchCo Residential LLC (Probably Jason
Jacobson).
ii. List their name (Probably Jason Jacobson) and position in Section III, la
of the Application. This must match what is shown on the NC Secretary of
State verification information provided.
iii. List their contact information in Section III, lb of the Application.
iv. Check only "Purchaser" off in Section III, lc of the Application.
v. Change the name and organization of the purchaser to Jason Jacobson
(Probably), and ArchCo Residential LLC respectively of Section IX of the
Application.

vi. Have the property owner re-sign Section IX of the Application (Since it
was changed).
vii. Have the Applicant (Probably Jason Jacobson) fill out and sign Section X.
viii. Have the O&M Agreement Form filled out and signed by the responsible
party, the purchaser (Probably Jason Jacobson).
d. The Applicant is the Developer— Based on our 1/30/20 phone conversation
(Correct me if I'm wrong), North Pilot Knob Road LLC is the Developer. If you
would like this to be the Applicant, please do the following:
i. Provide verification of name and title from the NC Secretary of State for
the person signing on behalf of North Pilot Knob Road LLC (Probably
Tadd Miller). This must match what is shown in Section III, la of the
Application.
ii. List their contact information in Section III, lb of the Application.
iii. Check only "Developer" off in Section III, lc of the Application.
iv. Have the O&M Agreement Form filled out and signed by the responsible
party, the property owner (Brian Mahoney/Steve Bailey).
6. Please use square feet, instead of acres, for the table in Section IV, 10 of the Application.
7. The "Total Drainage Area" item of the "Drainage Area 2" column of the table in Section
IV, 10 of the Application should be the sum of the "On -site Drainage Area" and the Off -
Site Drainage Area".
8. Please correct the following issues with the Supplement-EZ Form:
a. Drainage Area Sheet
i. Entire Site Column
1. Line 8 — There should not be any offsite areas included for the
entire site.
2. Line 7/10 — The items in Line 10 should add up to Line 7 (As Line
10 is a breakdown of Line 7).
3. Line 13 — Please include the existing BUA located within the
entire site. Recalculate Line 5.
4. Line 16/Section IV, 8 — These values should be the same. Please
revise for consistency.
5. Lines 18 & 19 — These items is not required.
ii. Drainage Area Columns
1. Line 18 — The Design Volume should be based off of the 1" design
storm.
2. Line 19 — The calculation method should be either the Simple
Method or the Discrete NRCS Curve Number Method. Please refer
to the Manual, Part B for more information.
b. Wet Pond Sheet
i. Wet Pond 1
1. Lines 2 & 35 — The Design Volume should be based off of the 1"
design storm.

2. Line 37 — The orifice diameter shown on the plans and in the
calculations is 1.5" whereas the one shown in the Supplement-EZ
Form is 2". Please revise for consistency.
3. Line 48 — Per the plans, the orifice draws down from below the
permanent pool. Please revise for consistency.
ii. Wet Pond 2
1. Lines 2 & 35 — The Design Volume should be based off of the 1"
design storm.
2. Line 37 — The orifice diameter shown on the plans and in the
calculations is 2.5" whereas the one shown in the Supplement-EZ
Form is 3". Please revise for consistency.
3. Line 48 — Per the plans, the orifice draws down from below the
permanent pool. Please revise for consistency.
9. As mentioned previously, the WQ elevations (As shown on the plans and in the
calculations) should be based on the Design Storm (1"). Ensure that the WQ elevations
for both wet ponds are based on the Design Storm.
10. There are discrepancies between the stage -storage tables provided in the calculations and
in the HydroCAD printouts for both wet ponds. Please revise for consistency.
Wet Pond 1
Elevation (ft)
Tot. Storage
Calcs (cf)
Tot. Storage
H droCAD (cf)
787.5
0
0
788.0
4,026
4,026
789.0
13,031
13,249
790.0
23,552
23,771
791.0
35,429
35,648
792.0
48,718
48,936
Wet Pond 2
Elevation (ft)
Tot. Storage
Calcs (cf)
Tot. Storage
H droCAD (cf)
776.5
0
0
777.0
5,082
5,311
778.0
17,770
17,999
779.0
32,586
32,815
780.0
49,587
49,815
781.0
68,828
69,057
782.0
90,367
90,194
783.0
113,807
113,231
11. The percent impervious used in the calculations for Wet Pond 1 (73%) does not match
the percent impervious for Drainage Area 1 as shown in Section IV, 10 of the Application
and the Supplement-EZ Form (66%). Please revise for consistency.

12. Provide pdfs of all revisions, 2 hardcopies of revised plan sheets, and 1 hardcopy of other
documents. Pdfs must be uploaded using the form at:
https://edocs.deq.nc.gov/Forms/SW Project Submittal
Please note that this request for additional information is in response to a preliminary review.
The requested information should be received by this Office prior to March 5, 2020, or the
application will be returned as incomplete. The return of a project will necessitate resubmittal
of all required items, including the application fee. Please reference the State assigned project
number SW3191101 on all correspondence.
If you need additional time to submit the information, please submit your request for a time
extension to the Division at the contact below. The request must indicate the date by which you
expect to submit the required information. The Division is allowed 90 days from the receipt of
a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an
approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject
to enforcement action pursuant to NCGS 143-215.6A.
If you have any questions concerning this matter please feel free to contact me at
[e-mail] or [phone].
Sincerely,
✓_ vl
Jim Farkas
Environmental Engineer
Stormwater Program
cc: Mooresville Regional Office