20091297 Ver 1_Staff Comments_20100113

Lucas, Annette
From: Lucas, Annette
Sent: Wednesday, January 13, 2010 12:46 PM
To: Homewood, Sue
Subject: 09-1297 C.O. Greensboro Keeley Park Site
Attachments: 09-1297 C.O. Greensboro Keeley Park Site.doc
Sue,
Here is a suggested diffuse flow condition for this project.
Thanks,
Annette
Annette Lucas, PE
NC Division of Water Quality - 401 Oversight/Express Unit
2321 Crabtree Boulevard, Suite 250
Raleigh, North Carolina 27604
Phone: [phone]
Fax: [phone]
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
09-1297 C.O. Greensboro Keeley Park Site
AML comments
January 13, 2010
Condition for the 401 Certification:
1. Diffuse Flow Plan Required
A final, written diffuse plan (including a signed and notarized Operation and
Maintenance Agreement) must be submitted to the 401 Oversight and Express
Permitting Unit (2321 Crabtree Blvd., Suite 250, Raleigh, NC, 27604) within 60
days of the issuance of this 401 Water Quality Certification. The diffuse flow
plan shall comply with the technical guidance set forth in Chapter 8 of the North
Carolina Stormwater BMP Manual, available at:
http;;'?h2o.enr,statc.nc.us-sglbmp formslitnn.
The diffuse flow plan must include one Level Spreader Supplement Form for each
proposed level spreader, including the Required Items checklist and all items
listed therein (also available at the above web site). Before any permanent
building is occupied at the site, the diffuse flow facilities shall be constructed and
operational according to the design and specifications approved by this Office.
The diffuse flow practices as approved by this Office as well as drainage patterns
must be maintained in perpetuity. No changes to the diffuse flow practices shall
be made without written authorization from the Division of Water Quality.
Stormwater easements shall be recorded for a distance of at least 10 feet on each
side of all stormwater conveyances, including future access for maintenance. The
stormwater easements shall allow for the ability to maintain the structures,
perform corrective actions as described above and shall provide protection of the
structures from potential alternations. The Operation and Maintenance
Agreements must transfer with the sale of the land or transfer of responsibility for
the stormwater facilities and the DWQ must be notified of every transfer.