20060659 Ver 3_Staff Comments_20120403

Lucas, Annette
From Lucas Annette
Sent Tuesday April 03 2012 12 00 PM
To Witherspoon Lauren
Cc Lucas Annette
Subject 06 0659v3 Woods at Umstead — DIFFUSE FLOW CONDITION
Attachments 06 0659v3 Woods at Umstead — DIFFUSE FLOW CONDITION docx
LC
The condition is attached Craig gave me a call this am to emphasize the time constraints of this project It would
certainly go a lot faster if they would give us what we ask for the first time)
A
Annette M Lucas PE
Environmental Engineer
NCDENR I DWQ ( Wetlands and Stormwater Branch
1650 Mail Service Center Raleigh NC 27699 1650 (M lil)
512 N Sahsbury St Raleigh NC 27604 1 911 Floor (Lo( ttion & P heels)
Phone [phone] Fax [phone] Email Ann<ttc 1 uc, v-,q ncdt ni �o�
Website http / /portal ncdenrorg/web/wq/sWp/ws/401
dJA Betore piintinp, this email please consider your bud,et and the environment
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06 06590 Woods at Umstead — DIFFUSE FLOW CONDITION
AML comments
April 2012
1 Diffuse Flow Plan Approval
The diffuse flow plan approved by this office consists of one level spreader and engineered vegetated
filter strip and all associated stormwater conveyances the grading and drainage patterns depicted on
plan sheets dated January 31 2012 No changes to the level spreader engineered 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 LS VFS operation
and maintenance (O & M) agreements signed by Mr Julian W Rawl (Manager) on January 24 2012
The O & M agreements 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