20110608 Ver 1_More Info Received_20110714

Strickland, Bev
From: Dennison, Laurie
Sent: Thursday, July 14, 2011 7:08 AM
To: Strickland, Bev; Lucas, Annette
Subject: FW: DWQ 11-0608 Highway 42 Commercial Subdivision (Johnston)
Attachments: Hwy42Commerical.07.01.11.pdf
From: Richie Hines [mailto:richieC&hinesengineeringgroup.com]
Sent: Wednesday, July 13, 2011 7:37 PM
To: Dennison, Laurie
Subject: RE: DWQ 11-0608 Highway 42 Commercial Subdivision (Johnston)
Laurie,
If you could please forward to the appropriate person, I would greatly appreciate it.
A disk with PDF drawings was delivered to Bev Strickland today. I have attached a copy of Johnston County's
Stormwater Management Approval for your reference. Thomas Brown with the USACE is satisfied with the site, and is in
the process of issuing a permit based on Neal Floyd's most recent conversation with him. Please feel free to contact me if
you need additional information or have any questions. Thanks.
Richie
Lee R. Hines, Jr. (Richie), PE
309 Cameronwood Drive
Fuquay-Varina, NC 27526
Phone [phone]
From: Dennison, Laurie [mailto:laurie.j.dennisonOncdenr.gov]
Sent: Wednesday, June 29, 2011 10:30 AM
To: charles(&mastfirm.com
Cc: [e-mail]
Subject: DWQ 11-0608 Highway 42 Commercial Subdivision (Johnston)
Importance: High
"Courtesy Copy of Letter Referencing the Above Project (hard copy is in the mail)"
Please see attached the Division of Water Quality's letter related to your application.
Please note this message is being forwarded to you electronically so that you may expedite preparation of your
response. Please do not send your response as a reply to this email or via fax; it will go unanswered.
A hard copy of this correspondence is being sent via US Mail. All response correspondence is to be mailed via hard copy
to the WEBSCAPE Unit, 1650 Mail Service Center, Raleigh NC 27699-1650. Questions may be directed to Ian McMillan
[phone].
Laurie Dennison
Administrative Assistant
Wetlands, Buffers, and Stormwater, Compliance and Permitting Unit (WEBSCAPE)
NCDENR/Division of Water Quality - Wetlands and Stormwater Branch
New Mailing address: 1650 Mail Service Center Raleigh NC 27699-1650
New Physical location: 512 N Salisbury St 9th FL Archdale Bldg Raleigh NC 27604-1170
New Main line: [phone]
New Fax line: [phone]
Website: www.ncwaterguality.org
Oakley
"I've learned that people will forget what you said, people will forget what you did, but people will never forget how you
made them feel. " poet Maya Angelou
fand" wo"Ay
DEPARTMENT OF PUBLIC UTILITIES
POST OFFICE BOX 2263
SMITHFIELD, N.C. 27577
[phone]
July 1, 2011
Highway 42 Associates, LLC
Attn: Charles Mast
P.O. Box 119
Smithfield, NC 27577
Re: Highway 42 Commercial Subdivision
Stormwater Management Statement and Plan
Dear Mr. Mast:
We have reviewed the Stormwater Management Plan and calculations submitted for the
proposed Highway 42 Commercial Subdivision. Based upon the information submitted, the
stormwater management plan has been approved with the following stipulations:
1. The proposed subdivision is approved for 10 commercial lots. The combined
impervious surface area limit for the ten lots is not to exceed 399,245 W. It is the
developer's responsibility to ensure that the impervious surface area is not exceeded
as each individual lot is developed.
2. Please note that if the entire development exceeds 10.03 acres of impervious surface
area (60% of 16.71 acres), participation in the Johnston County Land Dedication
Program will be required and additional stormwater BMPs may be required for
nitrogen reduction.
3. Each lot in the development will be required to submit a Stormwater Management
Plan for approval to demonstrate compliance with the overall stormwater
management plan.
4. The developer has requested that nitrogen export calculations be provided by each
individual lot as site plans become available. Each lot will be required to submit
nitrogen calculations and provide additional BMPs or purchase nitrogen offset
credits if the nitrogen export exceeds 3.6 lbs/ac/year.
5. The proposed wet pond must be completed prior to recording any lots in the
development.
6. Prior to_recording any lots, a fee for 25% of the construction cost of the wet pond
shall be paid to Johnston County Public Utilities. An engineering estimate or
documentation of actual construction costs for the pond must be provided with the
payment.
7. The enclosed Wet Detention Basin Operation and Maintenance Agreement must
be signed and recorded in the Register of Deeds office prior to the recording of
any lots. Please provide a copy of the recorded agreement.
8. Please provide a copy of the approval letter from NCDENR Land Quality for the
Sedimentation and Erosion Control Plan.
Printed an recycled paper 10
Page 2
July 1, 2011
Highway 42 Commercial Subdivision
9. Prior to recordation of the Final Plat, please provide a stormwater certification stating
that all stormwater facilities were constructed in accordance with the approved
stormwater management plan.
10. Please indicate all drainage easements, riparian buffers, jurisdictional wetlands, and
flood hazard areas on the Final Plat. It is the developer's responsibility to ensure that
all jurisdictional areas are identified and shown on the Final Plat.
Please be reminded that no land disturbing activities may begin on this site until all
other necessary approvals have been obtained. A copy of this letter will be forwarded to
the Planning Office for their files. If you have any questions or need additional information,
please contact me at [phone] or by email at [e-mail].
Sincerely,
/*W- 't.7`'--
Jamie Guerrero, PE
Stormwater Administrator
cc: Chandra Coats, PE -- Utilities and Environmental Engineer
Berry Gray - Planner
Richie Hines, PE via email
Permit Number: 11-014
(to be provided by Johnston County)
Project Name: Highway 42 Commercial Subdivision
Wet Detention Basin 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.
The wet detention basin system is defined as the wet detention basin, pretreatment
including forebays and the vegetated filter if one is provided.
This system (check one):
? does ® does not • incorporate a vegetated filter at the outlet.
This system (check one):
? does ® does not incorporate pretreatment other than a forebay.
Important maintenance procedures:
Immediately after the wet detention basin is established, the plants on the
vegetated shelf and perimeter of the basin should be watered twice weekly if
needed, until the plants become established (commonly six weeks).
- No portion of the wet detention pond should be fertilized after the first initial
fertilization that is required to establish the plants on the vegetated shelf.
Stable groundcover should be maintained in the drainage area to reduce the
sediment load to the wet detention basin.
If the basin must be drained for an emergency or to perform maintenance, the
flushing of sediment through the emergency drain should be minimized to the
maximum extent practical.
Once a year, a dam safety expert should inspect the embankment.
Permit Number: 11-014
(to be provided by Johnston County)
After the wet detention pond is established, it should be inspected once a month and
within 24 hours after every storm event greater than 1.0 inches. Records of operation
and maintenance should be kept in a known set location and must be available upon
request. An inspection report certified by a qualified professional engineer will be
submitted to the Johnston County Stormwater Administrator on a annual basis.
Inspection activities shall be performed as follows. Any problems that are found shall
be repaired immediately.
BMP element: potential . roblem: How I will remediate the problem:
The entire BMP Trash debris is resent. Remove the trash debris.
Areas of bare soil and/or Regrade the soil if necessary to
erosive gullies have formed, remove the gully, and then plant a
ground cover and water until it is
The perimeter of the wet established. Provide lime and a
detention basin one-time fertilizer application.
Vegetation is too short or too Maintain vegetation at a height of
long. approximately six inches,
The pipe is clogged. Unclog the pipe. Dispose of the
sediment off-site.
The pipe is cracked or Replace the pipe.
otherwise damaged.
The inlet device: pipe or Erosion is occurring in the Regrade the Swale if necessary to
s`vale Swale, smooth it over and provide erosion
control devices such as reinforced
turf matting or riprap to avoid
future problems with erosion.
Sediment has accumulated to Search for the source of the
a depth greater than the sediment and remedy the problem
original design depth for if possible. Remove the sediment
sediment storage. and dispose of it in a location where
it will not cause impacts to streams
or the BMP.
The forebay Erosion has occurred. Provide additional erosion
protection such as reinforced turf
matting or riprap if needed to
prevent future erosion problems.
Weeds are present, Remove the weeds, preferably by
hand. If pesticide is used, wipe it
on the plants rather than spraying.
Best professional practices Prune according to best
show that pruning is needed professional practices
The vegetated shelf to maintain optimal plant
health.
Permit Number: 11-014
(to be provided by Johnston County)
BMP element: Potential Problem: Eiow livill.remediate the problem:
Plants are dead, diseased or Determine the source of the
dying. problem: soils, hydrology, disease,
etc. Remedy the problem and
replace plants. Provide a one-time
fertilizer application to establish the
ground cover if a soil test indicates
it is necessary.

The vegetated shelf Weeds are present. Remove the weeds, preferably by
hand. If pesticide is used, wipe it
on the plants rather than spraying.
Sediment has accumulated to Search for the source of the
a depth greater than the sediment and remedy the problem
original design sediment if possible. Remove the sediment
storage depth. and dispose of it in a location where
it will not cause impacts to streams
The main treatment area or the BMP.
Algal growth covers over Consult a professional to remove
50% of the area. and control the algal growth.
Cattails, phragmites or other Remove the plants by wiping them
invasive plants cover 50% of with pesticide (do not spray),
the basin surface.
Shrubs have started to grow Remove shrubs immediately.
on the embankment.
Evidence of muskrat or Use traps to remove muskrats and
beaver activity is present. consult a professional to remove
beavers.
The embankment A tree has started to grow on Consult a dam safety specialist to
the embankment. remove the tree.
An annual inspection by an Make all needed repairs.
appropriate professional
shows that the embankment
needs repair. if applicable)
Clogging has occurred. Clean out the outlet device.
The outlet device Dispose of the sediment off-site.
The outlet device is damaged Repair or replace the outlet device.
The receiving water Erosion or other signs of Contact the Johnston County
damage have occurred at the Stormwater Administrator at (919)
outlet. 209-8333.
Permit Number: 11-014
(to be provided by Johnston County)
The measuring device used to determine the sediment elevation shall be such
that it will give an accurate depth reading and not readily penetrate into
accumulated sediments.
When the permanent pool depth reads 1.0 feet in the main pond, the sediment
shall be removed.
When the permanent pool depth reads 1.0 feet in the forebay, the sediment shall
be removed.
BASIN DIAGRAM
ill in the blanks)
Sediment R moval El. 290.0 PP
-------------Bottom Eleva 'on 289.0 Sediment
Storage
FOREBAY
Permanent Pool Elevation 293.5
Pool
- - - Sediment Removal Elevation 290.0------------ Volume
Bottom Elevation 289.0 + 1-ft M,
Sediment
Storage
MAIN POND
Permit Number: 11-014
(to be provided by Johnston County)
The obligations incurred herein by owner and applicant are appurtenant and run with the
property. This agreement is and shall be recorded in the Johnston County Registry, at the
expense of the Applicant, and it is and shall be binding upon all subsequent owners,
successors, and assigns of the project or any parcel thereof.
We will perform any and all maintenance directed by Johnston County Public Utilities.
If we fail to do so, Johnston County reserves the right to perform the work directed and
assess the costs to the undersigned. Furthermore, any owner of property served by the
project shall be jointly responsible with the undersigned to Johnston County for the
maintenance of the facility and liable for any costs incurred by Johnston County pursuant
to this agreement.
We acknowledge and agree by our signatures below that we are responsible for the
performance of this maintenance agreement. We agree to notify the Johnston County
Stormwater Administrator of any problems with the system or prior to any changes to the
system or responsible party.
Project name: Highway 42 Commercial Subdivision
BMP ID# (as shown on plans): Wet Detention Basin
Print name of Applicant: Charles D. Mast
Title: Member, Highway 42 Associates, LLC
Address: P.O. Box 119, Smithfield, NC 27577
Phone:-[phone]
Signature:
Date:
Print name of Owner (If different from Applicant):
Signature:
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.
Permit Number: 11-014
(to be provided by Johnston County)
I,
a Notary Public for the State of
, County of , do hereby certify that
personally appeared before me this
day of , and acknowledge the due execution of the
forgoing wet detention basin maintenance requirements. Witness my hand and official
seal,
SEAL
My commission expires