20121015 Ver 1_Staff Comments_20130108

Lucas, Annette
From: Lucas, Annette
Sent: Tuesday, January 08, 2013 10:04 AM
To: Higgins, Karen
Cc: Lucas, Annette
Subject: 12 -1015 Sheetz @ Lufkin and Ten -Ten — DIFF FLOW CONDITION
Attachments: 12 -1015 Sheetz @ Lufkin and Ten -Ten — DIFF FLOW CONDITION.docx
Karen,
Ready to approve — diffuse flow condition attached.
A
Annette M. Lucas, PE
Environmental Engineer
NCDENR I DWQ I Wetlands and Stormwater Branch
1650 Mail Service Center, Raleigh, NC 27699 -1650 (Mail)
512 N. Salisbury St, Raleigh, NC 27604 1 9th Floor (Location & Parcels)
Phone: [phone] Fax: [phone] Email: Annette. Lucas(Dncdenr.gov
Website: http: // portal .ncdenr.org /web /wgJswp /ws /401
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12 -1015 Sheetz @ Lufkin and Ten -Ten — DIFF FLOW CONDITION
AML comments
January 7, 2013
1. Diffuse Flow Plan Approval by the DWQ
The diffuse flow plan approved by the DWQ consists of one level spreader and vegetated filter strip
and all associated stormwater conveyances, the grading and drainage patterns depicted on plan sheets
dated December 20, 2012. No changes to the level spreader - vegetated filter strip shall be made
without written authorization from DWQ. The diffuse flow devices shall have maintenance access
and at least a 10 -foot drainage easement on each side to allow for the ability to maintain the
structures, and to perform corrective actions. The stormwater easements shall be recorded to provide
protection of the structures from potential alterations by future property owners.
The approved diffuse flow must be maintained in perpetuity in accordance with the LS -VFS
operation and maintenance (O & M) agreement(s) signed by Joseph McSweeney (Manager) on
December 18, 2012. The O & M agreement(s) must transfer with the sale of the property or transfer
of ownership /responsibility for the BMP facilities. DWQ must be notified promptly of every transfer.