20220109 Ver 1_More Info Received_20220302

Strickland, Bev
From: Perry Isner <[e-mail]>
Sent: Wednesday, March 2, 2022 9:49 AM
To: Nevin Chamberlain -Gentry
Cc: Perez, Douglas J
Subject: Re: [External] RE: Back Creek Townhomes (DWR #22-0109)
Attachments: Accent_BackCreekTH_PCN p.4_revised.pdf
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Doug, see attached. Let me know if you need anything else. Thanks!
On Tue, Mar 1, 2022 at 4:26 PM Nevin Chamberlain -Gentry <[e-mail]> wrote:
Doug,
See attached for the updated exhibit containing the updated impact table and profiles. Let us know if you need
anything else.
All the best,
NEVIN CHAMBERLAIN -GENTRY
assistant project manager
URBAN DESIGN PARTNER?
TRANSFORMING COMMUNITIES THROUGH COLLABORATIVE DESIGN®
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1

From: Perez, Douglas J <[e-mail]>
Sent: Tuesday, March 1, 2022 1:26 PM
To: Nevin Chamberlain -Gentry <[e-mail]>; Perry Isner <perryisner@wetlands-
waters.com>
Subject: RE: [External] RE: Back Creek Townhomes (DWR #22-0109)
Ok great. Thanks for the clarification. Can I get an updated impacts table that I can add to the file, then?
Thanks,
Doug
From: Nevin Chamberlain -Gentry [mailto:[e-mail]]
Sent: Tuesday, March 1, 2022 9:35 AM
To: Perry Isner <[e-mail]>
Cc: Perez, Douglas J <[e-mail]>
Subject: [External] RE: Back Creek Townhomes (DWR #22-0109)
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Hello Perry/Doug,
I spoke with the engineer on this one and she said the following below in red. Let me know if this answers your
questions. Thanks!
We can get rid of the rip rap upstream since it will be buried like Doug said.
We sized the rip rap downstream based on CLDSM 20.23 and Figure 8.06a from the NC Erosion and Sediment
Control Planning and Design Manual. Based on the curve for a 72" pipe, the calculations call for a minimum 40'
length apron.
2

If there is an exception that Perry or Doug are aware of, we can discuss it, but based on NC code we think it needs
to be 40' length.
Best,
NEVIN CHAMBERLAIN -GENTRY
assistant project manager
URBAN DESIGN PARTNER?
TRANSFORMING COMMUNITIES THROUGH COLLABORATIVE DESIGN®
0: [phone]
C: [phone]
www.urbandesignpartners.com
Information received from Urban Design Partners PLLC found within this communication is considered confidential and privileged to the person or
entity to which it was addressed. If you are not the intended original recipient of this message, you are notified that reading, reproduction or distribution
of any information found within this correspondence is strictly prohibited.
From: Perry Isner <[e-mail]>
Sent: Monday, February 28, 2022 7:27 PM
To: Nevin Chamberlain -Gentry <[e-mail]>
Subject: Fwd: Back Creek Townhomes (DWR #22-0109)
Nevin, see below. Any feedback we can provide Doug? Thanks,
Forwarded message
From: Perez, Douglas J <[e-mail]>
Date: Wed, Feb 23, 2022 at 2:22 PM
Subject: Back Creek Townhomes (DWR #22-0109)
To: Perry Isner <[e-mail]>
3

Hey Perry,
I had a question about this proposed culvert. I see that zo' of rip rap is proposed upstream and 40'
downstream. First, that seems like a lot of rip rap downstream. Can we not pull that back? Second, why
does there need to be rip rap upstream of the culvert? Given that this is proposed to be buried, I'm
struggling a bit to find the purpose and need for all that rip rap. Let me know.
Doug
DWR
Dfwklan of Water Resources
Doug Perez — Environmental Specialist
NC Dept. of Environmental Quality (NCDEQ)
Division of Water Resources - Water Quality Regional Operations
6io East Center Ave., Suite 3oi, Mooresville, NC 28115
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parties unless the content is exempt by statute or other regulation.
Perry Isner
Wetlands & Waters, inc.
328 East Broad St. Suite D
4

Statesville, NC 28677
704.773.4239
[e-mail]
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notify us by return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message.
Thank you for your cooperation and consideration.
Perry Isner
Wetlands & Waters, inc.
328 East Broad St. Suite D
Statesville, NC 28677
704.773.4239
[e-mail]
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or entity named above. If you are not an intended recipient or if you have received this message in error, you are hereby notified that any
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return email or telephone if the sender's phone number is listed above, then promptly and permanently delete this message. Thank you for
your cooperation and consideration.
5

DWR
Dm awa,,R. ,me

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑X Wetlands ❑X Streams — tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary T
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1
Choose one
Choose one
Yes/No
W2
Choose one
Choose one
Yes/No
W3
Choose one
Choose one
Yes/No
W4
Choose one
Choose one
Yes/No
W5
Choose one
Choose one
Yes/No
W6
Choose one
Choose one
Yes/No
2g. Total Wetland Impacts:
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 P
Culvert
UT to Back Creek
PER
Corps
86
S2 P
Riprap outlet
UT to Back Creek
PER
Corps
40
S3 P
Pump -around
UT to Back Creek
PER
Corps
10
S4 T
Pump -around
UT to Back Creek
PER
Corps
10
S5
Choose one
S6
Choose one
3h. Total stream and tributary impacts
146
3i. Comments:
Page 4 of 10
PCN Form — Version 1.4 January 2009