20090565 Ver 1_Year 5 monitoring review_20190923

Strickland, Bev
From: Sugg, Mickey T CIV USARMY CESAW (USA) < [e-mail] >
Sent: Monday, September 23, 2019 3:49 PM
To: [e-mail]; Bowers, Todd; Mairs, Robb L; Haupt, Mac; Davis, Erin B;
Dunn, Maria T.; Wilson, Debra; Brownlow, Roy; fritz.rohde; Twyla Cheatwood - NOAA
Federal; Davenport, Ryan; Wilson, Travis W.
Cc: Wes Fryar
Subject: [External] Bachelors Delight Yr. 5 monitoring review
Attachments: Bachelors Delight 2019 review.pdf
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an
attachment to [e-mail]<maiIto: [e-mail]>
Good afternoon,
Attached is an evaluation letter of our review on the Yr. 5 monitoring report dated May 2019. You will see some credits
being withheld due to the need for pine & sweet gum removal, stream grade control structure failure, & stunted tree
growth along one of the reaches. If you have any comments/questions/input on the remediation or credit release, pls
don't hesitate calling me.
-mickey
Mickey Sugg, Chief
Wilmington Regulatory Field Office
U.S. Army Corps of Engineers
69 Darlington Avenue
Wilmington, NC 28403
[phone] (direct line)
[phone] (fax)
"The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete the Customer Satisfaction Survey located at:
"http://corpsmapu.usace.army.mil/cm_apex/f?p=136:4:0 "

Regulatory Division
DEPARTMENT OF THE ARMY
WILMINGTON DISTRICT, CORPS OF ENGINEERS
69 DARLINGTON AVENUE
WILMINGTON, NORTH CAROLINA 28403-1343
Action ID. SAW -2009-00832
Weyerhaeuser NR Company
c/o: Mr. Doug Hughes
406 Cole Road
Hattiesburg, MS 39402
Dear Mr. Hughes:
September 23, 2019
This letter serves to confirm our evaluation, coordinated with the Interagency Review
Team (IRT), of the May 2019 Year 5 monitoring report for the Bachelors Delight Stream
Mitigation Bank located on the east side of Gum Branch Road (SR 1308), within
Bachelors Delight Swamp watershed, north of Jacksonville, Onslow County, North
Carolina. Please reference the July 9, 2012 executed Mitigation Banking Instrument
(MBI) and the Amended MBI executed on January 21, 2015; and my July 10, 2019
onsite inspection with Mr. Wes Fryar of Land Management Group (LMG) Inc., along with
Mr. Jordan Jessop of our staff. Reference should also be made to our November 2,
2018 letter, as well as other previous correspondence detailing our review of past
monitoring reports.
Based on the site inspection, the abundant presence of loblolly pines (Pinus taeda)
and sweet gum (liquidambar styraciflua) were observed along stretches of HM -1, HU -1,
and HEW. It is expected that the quantity of these volunteer species will affect the
growth rate and survivability of the planted tree species overtime. With the success
observed in the pine suppression conducted in early 2017, our office is requiring
additional vegetation control measures along HM -1, HU -1, and HEW in order to provide
support for the establishment of the targeted plant communities prescribed in the
approved mitigation plan. A remedial plan must be provided to our office detailing the
specifics of controlling these volunteer species, including the time and location of
remedial action. Additionally for HEW, there were continued concerns expressed along
stretches of this reach where the planted stems remain stunted after five years of being
installed. It was decided that LMG, Inc. would prepare a detailed plant community
overview of the HEW reach (starting near the intersection of the two logging roads) to
help determine the possibilities of remediation and/or reduction of mitigation credit.
In evaluating the hydrology data, our office has determined that all of the monitoring
wells have met the performance standard during normal rainfall conditions. For Well-
GW8, this well had been a continued concern for the last 5 years, seemingly achieving

the success criteria during abnormally high rainfall events and/or near the point of
meeting performance during normal conditions. Based on collective observations over
the past 5 years, which includes surrounding vegetation growth, it appears that the
location of this well represents the edge of the main canal's zone of drainage influence.
Our office has concluded that a mitigation credit adjustment is not necessary within the
vicinity of this well. With this decision, the bank site has fulfilled and completed all of the
hydrological well monitoring requirements, including stream gauges, set forth in the
MBI. Consequently, all hydrology monitoring can be terminated.
Lastly, the onsite inspection revealed the degradation of the outlet grade control
structures for HM reach. This series of structures are located at the terminus of HM and
at the intersection with an existing property boundary ditch. Over the course of the five
year monitoring, several of these structures have experienced erosion and failure and
have been repaired. The present degradation adds a higher level of concern for the
overall integrity of the existing structures. It is our position that an entire overhaul must
be considered in order to greatly reduce the potential of compromising the entire HM
reach, particularly via headcutting. As you are aware, this bank site has and will
continue to experience tropical and hurricane storms and their accompanied large
rainfall amounts. The grade control structures must be designed to withstand these
types of rainfall events in perpetuity. Please provide a plan detailing the remedial action
to be taken for the structures.
Our office has made the determination to withhold 5% (or 8.55 of the 17.1 credits) of
the potential wetland credits both from riparian (non-riverine) and non -riparian wetland
types and 7% (or 1,857 linear feet) of potential stream credits based on the above
concerns. The remaining 5% wetland credits and the 8% stream credits, as depicted in
Task 7.0 of Tables 4A and 4B of the MBI, and using the As -Built survey adjusted totals
for streams (as disclosed in our December 17, 2013 letter), are being released for
mitigation use. The mitigation credit release is 5% (or 4.2 credits) for the riparian, non-
riverine wetland credits, 5% (or 4.35 credits) for the non -riparian wetland credits, and
8% of stream credits (or 2,123 linear feet). The remaining 5% (or 8.55 credits) of
wetland credits, consisting of 4.2 riparian, non-riverine wetland credits and 4.35 non -
riparian credits, and 7% (or 1,857 linear feet) of stream credits will be withheld until
further evaluation.
To date, this brings the total release to 110.95 wetland credits (consisting of 54.4
riparian, non-riverine credits and 56.55 non -riparian credits) and 20,690.5 linear feet of
stream credits.
Please be reminded of your obligations pursuant to the July 9, 2012 MBI and
January 21, 2015 Amended MBI; and to continue maintenance inspections of the Bank
in order to evaluate the condition and stability of all streams, ford crossings, and plug
structures in perpetuity. Should you have any questions, please do not hesitate to

contact me at the Wilmington Regulatory Field Office, telephone [phone] or
[e-mail]. miI .
Sincerely,
SUGG.MICKEY. SDUGGIMICKEY.UT.1229800830
04'00?019.09.2315:24:17
T.1229800830
Mickey Sugg, Chief
Wilmington Regulatory Field Office
Copies furnished via mail:
Mr. Sam Cook- NC State Natural Resources Foundation, Inc. NCSU
Ms. Maria O'Farrell- College of Natural Resources NCSU
Messrs. Christian Preziosi and Wes Fryar-Land Management Group, Inc.
Mr. Todd Bowers- U.S. Environmental Protection Agency
Mr. Robb Mairs- NC Division of Water Resources
Mr. Mac Haupt- NC Division of Water Resources
Ms. Erin Davis- NC Division of Water Resources
Ms. Maria Dunn- North Carolina Wildlife Resource Commission
Ms. Debbie Wilson- NC Division of Coastal Management
Mr. Roy Brownlow- NC Division of Coastal Management
Ms. Kathy Matthews- U.S. Fish and Wildlife Service
Mr. Fritz Rohde and Ms. Twyla Cheatwood- National Marine Fisheries Service
Mr. Ryan Davenport- NC Division of Coastal Management