20180630 Ver 1_Updated PCN_20180514

Strickland, Bev
From: Eric Kulz <[e-mail]>
Sent: Monday, May 14, 2018 8:48 AM
To: Alexander, Tasha L CIV USARMY CESAW (US); Higgins, Karen
Cc: Amy Mackintosh; Jan Patterson
Subject: [External] Crabtree Creek Interceptor Streambank Stabilization - DWR #20180630
Attachments: Revised PCN pages and impact map.pdf
Tasha and Karen:
Please see attached two revised pages for the PCN and an updated impact map. Upon further stability analyses, the
project engineer revised the design and therefore the impacts.
Please let me know if you have any questions or need any additional information.
Eric W. Kulz
Environmental Specialist
TOWN O f GARY, WATER RESOURCES DEPARTMENT
PO Box 8005 1 Cary, NC 27512-8005
316 N. Academy Street I Cary, NC 27513
phone: [phone] fax: [phone]
[e-mail]
At the Town of Cary we focus every day on enriching the lives of our citizens by creating an exceptional environment and
providing exemplary services that enable our community to thrive and prosper.
In keeping with the NC Public Records Act, emails and all attachments may be released to others upon request for
inspection and copying without prior notification.

PJD done as part of Crabtree Creek Greenway Project. This stabilization is
not part of that project, but will be done by the same contractor that is
constructing the greenway.
D. Proposed Impacts Inventory
1. Impacts Summary
la. Where are the Impacts associated with your project? (check all that apply):
r Wetlands 17 Streams -tributaries W Buffers
r Open Waters r Pond Construction
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. Reason for Impact*3b.lmpact 3c. Type of Impact *3d. Stream name* 3e. Stream 3f. Type of
type* Type* Jurisdiction*
S1 Streambank P Bank UT to Crabtree Perennial Both
Stabilization Fernarent(9a Stabilization Creek Perennial (FBF�a
Map label (e.g. Raad Crossing Tan"I"aryM Intameera(r4l)
** All Perennial or Intermittent streams must be verified by DWR or delegated local government.
31. Total jurisdictional ditch Impact In square feet:
0
31, Total permanent stream Impacts:
30
31. Total temporary stream Impacts:
0
31. Total stream and tributary Impacts:
30
3j. Comments:
6. Buffer Impacts (for DWR)
If project will impact a protected riparian buffer, then complete the chart below. Individually list all buffer impacts below.
6a. Project Is In which protect basin(s)?*
Oh kali that apply.
R Neuse r Tar -Pamlico
r Catawba r Randleman
r Goose Creek r Jordan Lake
r Other
6b. Impact Type * 6c. Per or 6d. Stream name*
Temp *
Streambank stabilization (riprap) P UT to Crabtree Creek
Locationard Exempt,A[cwable, allovablewl Fenra>ent(F�a
mligation Ter poraiy (T)
6e. Buffer mitigation
required?
No
3g. Stream 3h. Impact
width* length*
6
Average(merfeet)
(feet) IJILf*
lip
6f. Zone 1
Impact*
(square feet)
6g. Zone 2
Impact*
0
(square feet)

6h. Total buffer impacts:
Zone 1 Zone 2
Temporary impacts: 0.00 0.00
Zone
Zone 2
Permanent impacts: ,[
0.00
375'
Zone 1
Zone 2
Total buffer Impacts:
0.00
61. Comments:
Supporting Documentation - Le. Impact Maps, Plan Sheet, etc.
dick ae upload buaon or drag and drop files hereto attach docunent
Impact Map.pdf
Fie mst bePDF
E. Impact Justification and Mitigation
1. Avoidance and Minimization
81.9KB
1a. Specifically describe measures taken to avoid or minimize the proposed Impacts In designing the project:"
Impacts are limited to the eroding bank over the 48 -inch sanitary sewer line.
tb. Specifically describe measures taken to avold or minimize the proposed Impacts through construction techniques:*
The bank will be laid back during a dry period (low Flow). Riprap will be keyed in by hand after placement
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project requ Ire Compensatory Mltlgatlon for impacts to Waters of the U.S. or Waters of the State?
r Yes r 1,b
2b. If this project DOES NOT require Compensatory Mitigation, explain why:
NC Stream Temperature Classification Maps can be found under the Mitigation Concepts tab on the Wilmington District's RIBfTS website.
F. Stormwater Management and Diffuse Flow Plan (required by DWR)
•.• Recent changes to the stormwater rules have required updates to this section .-
1. Diffuse Flow Plan
1a. Does the project Include or Is it adjacent to protected riparian buffers Ida ntifled within one of the NC RIparlan Buffer Protection
Rules?
R Yes r No
1b. All buffer Impacts and high ground Impacts require diffuse flow or other form of stormwater treatment. If the project is subject to a
state Implemented riparian buffer protection program, Include a plan that fully documents how diffuse flow will be maintained.
All Stormwater Control Measures (SCM)s must be designed In accordance with the NC Stormwater Design Manual. Associated
supplement forms and other documentation shall be provided.

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