20071105 Ver 3_Staff Comments_20130530

Strickland Bev
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Lucas, Annette
Thunsdoy, May 30, 20132:48PK4
Smith, CheniL
Strickland, Bev
07-1105v3 River Oaks Commercial Park — Son Lan Parkway Roadway Extension
07-1105v3 River Oaks Commercial Park — Son Lan Parkway Roadway Extension.docx
Annette M. Lucas, PE
Environmental Engineer
lVCI}IClVR I DW() I Wetlands and BtorcuwaterBranch
I85O Mail Service Center, Raleigh, lVC 27699 -1650 (D�ail)
512 N. Salisbury St, Raleigh, NC 27804 1 Q'u Floor (.Looatiora8n Parcels)
Phone: (9I9) 807-838I 1 Fax: [phone] Email:
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07- 1105v3 River Oaks Commercial Park — Son Lan Parkway Roadway Extension
AML comments
May 30, 2013
1. Diffuse Flow Plan: Submittal of Local Government Approval Reauired
Because the stormwater management plan approved by Johnston County is being used to meet
diffuse flow requirements on this project, you are required to provide one copy of the approved
SMP, including plan details on full -sized plan sheets, with proof of Johnston County's approval. The
approved SMP shall be submitted to the DWQ Webscape Unit (1650 Mail Service Center, Raleigh,
NC 27699 -1650) before any impacts authorized in this certification occur. The following
requirements also apply:
• The approved SMP shall be constructed and operational before any permanent building or other
structure is occupied at the site.
• The approved SMP as well as drainage patterns shall be maintained in perpetuity.
• The SMP may not be modified without prior written authorization from Johnston County. A copy
of the approval letter and the modified SMP shall be submitted to the DWQ Webscape Unit
prior to the commencement of the modifications.
2. Stormwater Management Plan (SMP) Approval from Local Community for Future Phase(s) Required
You are required to provide one copy of the approved SMP for the future phase(s), including plan
details on full -sized plan sheets, with proof of Johnston County's approval. The approved SMP shall
be submitted to the DWQ Webscape Unit (1650 Mail Service Center, Raleigh, NC 27699 -1650)
before any land disturbance associated with that phase may occur. The following requirements also
apply:
• The approved SMP for the future phase(s) shall be constructed and operational before any
permanent building or other structure is occupied at the site.
• The approved SMP for the future phases(s) as well as drainage patterns shall be maintained in
perpetuity.
The SMP may not be modified without prior written authorization from Johnston County. A copy
of the approval letter and the modified SMP shall be submitted to the DWQ Webscape Unit
prior to the commencement of the modifications.