20080493 Ver 1_More Info Received_20080402

community infrastructure consultants
2 April 2008
Ms. Cyndi Karoly
North Carolina Division of Water Quality
401 Oversight/Express Review Permitting Unit
2321 Crabtree Boulevard, Suite 250
Raleigh, NC 27604
RE: Thorp Residence, Lots 4 and 5 Southern Blvd, Rocky Mount, NC - DWQ Project #2008-0493
Dear Ms. Karoly:
Enclosed please find the information requested in your 25 March 2008 letter, signed by Ian McMillan
on your behalf, in support of the minor Tar-Pamlico Riparian Buffer Variance request cited above.
Should you have any questions or like clarification on any point, please call.
Sincerely,
W.K. Dickson & Co., Inc.
~~_
Ward arotti
Project Manager
Attachment
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OCR QG William 0. Ross Jr., Secre~ary
~ ~ North Carolina Department of Environment and Natural Resources
~I /~ ~fj Coleen H. Sullins, Director
Q "~ ,~ ~ ~ ~ ~ V ~ Division of Water Quality
March 25, 20 MAR 2 7 2oa8
DWQ Project # 2008-0493
• Nash County
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CERTIFIED MAIL• RETURN RECEIPT RE UESTED ~' ~ ~' ~ `' ry ~ ~ ~`~~ r ~~ ' `i
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Mr. Landon Shuff ~, ;-` ., ~ ~ 0 ~ ~
11415 Fenner Road
Rocky Mount, NC 27804 ~C~~ ~vc.rt:n c:~n~;1~v
~'~ I ~~,NpS ANG STQRMV',~,~TER $ttgNf.,H
Subject Property: Thorp Residence, Lots 4 & 5 Southern Blvd, Rocky Mount, NC
UT to Goose Branch [030302, 28-70, C, NSWJ
REQUEST FOR MORE INFORMATION
Dear Mr. Shuff:
On March 14, 2008, the Division of Water Quality (DWQ} 401 Oversight/Express Permitting Unit
received your application dated March ] 3, 2008 regarding your request for a Minor Variance from the
Tar-Pamlico Buffer Rules (ISA NCAC 2B .0259) for the subject property. DWQ is required to prepare a
"preliminary finding" P'finding of fact" as to whether the variance request meets the requirements of 1 SA
NCAC 02B .0259(9)(a). The DWQ may attach conditions to a variance approval that support the
purpose, spirit and intent of the riparian buffer protection program. Conditions usually include
stormwater management and buffer mitigation.
Additional information will be required before we can proceed with the review of your variance request.
Therefore, unless additional information is provided as described below, we will have to move toward
denial of your request per 1 SA NCAC 2B .0259 and will place this project on hold as incomplete until we
receive this additional information.
Additional Information Requested;
1. Buffer Mitigation
Please provide an acceptance letter from the mitigation bank demonstrating they have the
available mitigation credits for your proposed mitigation payment.
2. Stormwater Management
Please provide all applicable worksheets and O&M agreements for your proposed rain garden.
Please respond in writing within three weeks of the date of this letter by sending a copy of this
information to me and to Lauren Witherspoon of the DWQ Raleigh Regional Office. If we do not hear
from you in writing within three weeks, we will assume that you no longer want to pursue your variance
Nom` Carolina
401 OversighdExpress Review Permitting Unit " ' ""~urQ!!y
1650 Mail Service Center, Raleigh North Carolina 27699-1650
2321 Crabtree Boulevard, Suite 250, Raleigh, North Carolina 27604
Phone: [phone] /FAX [phone] ! lntemeC httn~//h2o enr state nc.us/ncwellant~
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/IO% Post Consumer Paper

Landon Shuff
Page 2 of 2
March 25, 2~d8
request and we will consider tl~e request as withdrawn. Please call Ms. Amy Chapman of this office at
(919) 733-178b if you have any questions.
Since y,
Cyndi Karoly, Supervisor
401 Oversight/Express Review Permitting Unit
CBK/crsc
cc: Lauren Witherspoon, DWQ Raleigh Regional Office
Ward Marotti, W.K. Dickson, 720 Corporate Center Drive, Raleigh, NC 27b07
File Copy
Central Files
Filename: 080493ThorpResidence_Lots4and5_SouthemBlvd(Wake)MinVar On_Hold

~--
tem i ~.
PR06RAM
08 - o'~ 9 3
March 20, 2008
Landon Shuff
114 LS Fenner Rd.
Rocky Mount, NC 27804
Project: Southern Blvd. Thorp Home
Expiration of Acceptance: September 20, 2008
County: Nash
The purpose of this letter is to notify you that the North Carolina Ecosystem Enhancement Program {NCEEP) is willing to
accept payment for impacts associated with the above referenced project. Please note that this decision does not assure that
the payment will be approved by the permit issuing agencies as mitigation for project impacts. It is the responsibility of the
applicant to contact these agencies to determine if payment to the NCEEP will be approved.
This acceptance is valid for six months from the date of this letter and is not transferable. If we have not received a copy of
the issued 404 Permit/401 Certification/LAMA permit within this time frame, this acceptance will expire. It is the
applicant's responsibility to send copies of the permits to NCEEP. Once NCEEP receives a copy of the permit(s) an invoice
w':Il be issued based on the required mitigation in that permit and payment must be made prior to conducting the authorized
work. The amount of the In Lieu Fee to be paid to NCEEP by an applicant is calculated based upon the Fee Schedule and
policies listed at www.nceep.net.
Based on the information supplied by you the impacts that may require compensatory mitigation are summarized in the
following table.
Tar-Pamlico
03020101 Stream (feet) Wetlands (acres) Buffer I
(Sq. Ft.} Buffer II
{Sq. Ft.)
Cold Cool Warm Ri avian Non-Ri avian Coastal Marsh
Impacts 0 0 0 0 0 0 0 400
Credits 0 0 0 0 0 0 0 b00
Upon receipt of payment, EEP will take responsibility for providing the compensatory mitigation. If the regulatory agencies
require mitigation credits greater than indicated above, and the applicant wants NCEEP to be responsible for the additional
mitigation, the applicant will need to submit a mitigation request to NCEEP for approval prior to permit issuance. The
mitigation wilt be performed in accordance with the Memorandum of Understanding between the N. C. Department of
Environment and Natural Resources and the U. S. Army Corps of Engineers dated November 4, 1998.
if you have any questions or need additional information, please contact Valerie Mitchener at [phone].
cc:. Cyndi Karoly, NCDWQ Wetlands/401 Unit
Thomas Brown, USACE-Raleigh
Amy Chapman, NCDWQ-Wetlands/401 Unit
Ward Marotti, agent
File
Sincerely,
Wiilia .Gilmore, PE
Director
RP~'~-DYGf2~... ~ ~ ... PYDt"~ DGGY S~i~

North Carolina Ecosystem Enhancement Program, 1652 Mail Service Center, Raleigh, NC 27689-1652 / 919-715-0476 /www.nceep.net

Proposed Rain Garden Design Calculations (Thorp Residence, Lots 4 and 5 Southern Blvd., Rocky Mount, NC DWQProject
#2008-0493)
Buffer impacts
patio 205 (sq. ft.)
roof 20 (sq. ft.)
Volume released by impact area
driveway 50 (sq. ft.) (375 sq.ft.) from 1"storm event
Volume accommodated by
proposed rain garden (60 square
rain garden 60 (sq. ft.) feet x 7")
dissepator 5 (sq. ft.)
collection/discharge pipes 35 (sq. ft.)
Total Tar-Pamlico Riparian
Buffer Impacts (Zone 2) 375 (sq. ft.)
31.25 (cubic feet)
35.00 (cubic feet)
calculations pursuant to North Carolina Cooperative Extension Office's "Building a Backyard Rain Garden"
http://www. bae. ncsu.edu/topic/raingarden/Building. htm#size

Permit Number: 0 $ " ~ ~ q 3
(to be provided by DWQ)
Drainage Area Number:
Bioretention Operation and Maintenance Agreement
I will keep a maintenance record on this BMP. This maintenance record will be kept in a
log in a known set location. Any deficient BMP elements noted in the inspection will be
corrected, repaired or replaced immediately. These deficiencies can affect the integrity
of structures, safety of the public, and the removal efficiency of the BMP.
Important operation and maintenance procedures:
- Immediately after the bioretention cell is established, the plants will be watered
twice weekly if needed until the plants become established (commonly six
weeks).
- Snow, mulch or any other material will NEVER be piled on the surface of the
bioretention cell.
- Heavy equipment will NEVER be driven over the bioretention cell.
- Special care will be taken to prevent sediment from entering the bioretention cell.
- Once a year, a soil test of the soil media will be conducted.
After the bioretention cell is established, I will inspect it once a month and within 24
hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal
County). Records of operation and maintenance will be kept in a known set location
and will be available upon request.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: Potential roblems: How I will remediate the roblem:
The entire BMP Trash/ debris is resent. Remove the trash/ debris.
The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to
bioretention cell erosive gullies have formed. remove the gully, and then plant a
ground cover and water until it is
established. Provide lime and a
one-time fertilizer a lication.
The inlet device: pipe, The pipe is clogged (if Unclog the pipe. Dispose of the
stone verge or Swale a licable . sediment off-site.
The pipe is cracked or Replace the pipe.
otherwise damaged (if
a licable .
Erosion is occurring in the Regrade the swale if necessary to
swale (if applicable). smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future roblems with erosion.
Stone verge is clogged or Remove sediment and clogged
covered in sediment (if stone and replace with clean stone.
a licable .
Form SW401-Bioretention O&M-Rev.3 Page 1 of 4

BMP element: Potential roblems: How I will remediate the roblem:
The pretreatment area Flow is bypassing Regrade if necessary to route all
pretreatment area and/or flow to the pretreatment area.
llies have formed. Restabilize the area after adin .
Sediment has accumulated to Search for the source of the
a depth greater than three sediment and remedy the problem if
inches. possible. Remove the sediment and
restabilize the retreatment area.
Erosion has occurred. Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
revent future erosion roblems.
Weeds are present. Remove the weeds, preferably by
hand.
The bioretention cell: Best professional practices Prune according to best professional
vegetation show that pruning is needed practices.
to maintain optimal plant
health.
Plants are dead, diseased or Determine the source of the
dying. problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide aone-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessa
Tree stakes/wires are present Remove tree stake/wires (which
six months after lantin can kill the tree if not removed .
The bioretention cell: Mulch is breaking down or Spot mulch if there are only random
soils and mulch has floated away. void areas. Replace whole mulch
layer if necessary. Remove the
remaining much and replace with
triple shredded hard wood mulch at
a maximum de th of three inches.
Soils and/or mulch are Determine the extent of the clogging
clogged with sediment. -remove and replace either just the
top layers or the entire media as
needed. Dispose of the spoil in an
appropriate off-site location. Use
triple shredded hard wood mulch at
a maximum depth of three inches.
Search for the source of the
sediment and remedy the problem if
ossible.
An annual soil test shows that Dolomitic lime shall be applied as
pH has dropped or heavy recommended per the soil test and
metals have accumulated in toxic soils shall be removed,
the soil media. disposed of properly and replaced
with new lantin media.
Form SW401-Bioretention O&M-Rev.3 Page 2 of 4

BMP element: Potential roblems: How I will remediate the roblem:
The underdrain system Clogging has occurred. Wash out the underdrain system.
if a licable)
The drop inlet Clogging has occurred. Clean out the drop inlet. Dispose of
the sediment off-site.
The dro inlet is dama ed Re air or re lace the dro inlet.
The receiving water Erosion or other signs of Contact the NC Division of Water
damage have occurred at the Quality 401 Oversight Unit at 919-
outlet. 733-1786.
Form SW401-Bioretention O&M-Rev.3 Page 3 of 4

Permit Number:
(to be provided by DWQ)
I acknowledge and agree by my signature below that I am responsible for the
performance of the maintenance procedures listed above. I agree to notify DWQ of any
problems with the system or prior to any changes to the system or responsible party.
Project name:Thorp Residence, Lots 4 and 5 Southern Blvd, Rocky Mount, NC
BMP drainage area number:030302, 28-70
Print name: Landon Shuff
Title:Owner
Addr~
Phony
Signs
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50% of
the lots have been sold and a resident of the subdivision has been named the president.
I, ~ ~j ~ • ~ GL r , a Notary Public for the State of
~(~1(y~.~_, County of ~~~1 , do hereby certify that
L r,~,,n ~I(1 ~ personally appeared before me this _
day of , ~, and acknowledge the due execution of the
forgoing bioretention maintenance requirements. Witness my hand and official seal,
LISA J. TAYLOR
NOTARY PUBLIC
NASH COUNTY N.C.
SEAL
My commission expires ~ ~ ~ ~ •` ~~'
~,~~~~~
Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4