20090189 Ver 1_Triage Comments_20090528

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Triage omment Sheet
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Triaged By:
Reviewer 1
Reviewer 2
Reviewer 3
? Issue Project (Reviewer 1)
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Date: ?? ?? ??
Date:
Date:
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SATriage Forms\Triage Issue Sheet.doc
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? Issue Project (Reviewer 2)
Lucas, Annette
From: Lucas, Annette
Sent: Thursday, May 28, 2009 12:35 PM
To: Mcmillan, Ian
Cc: Lucas, Annette
Subject: 09-0189 Autumn Corporation - Cape Fear
Attachments: 09-0189 Autumn Corporation - Cape Fear CONDITION.doc
Ian,
I have reviewed the SMP for this project and agree that their design can qualify for a low density approach. When you
issue the 401 Certification, can you please insert the attached condition.
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.

09-0189 Autumn Corporation - Cape Fear CONDITION
AML Comments
May 28, 2009
Suggestion for wording of a 401 Condition:
1. Maintenance of Low Density Criteria
This development will be considered to be Low Density as long as all of the
following criteria are met throughout the entire site:
a. The overall site plan, excluding ponds, lakes, rivers (as specified in
North Carolina's Schedule of Classifications) and saltwater wetlands
(SWL), must contain less than 24% impervious surface area
considering both current and future development.
b. All stormwater from the entire site must be transported primarily via
vegetated conveyances designed in accordance with the most recent
version of the NC DWQ Stormwater BMP Manual.
C. The project must not include a stormwater collection system (such as
piped conveyances) as defined in NCAC 2B .0202.
d. Stormwater conveyances that discharge to wetlands must discharge at
a non-erosive velocity prior to entering the wetland during the peak
flow from the ten-year storm.
e. Any area within the project that has impervious surface area of 24% or
greater must be located away from surface waters and drainageways
and shall drain to surface waters and drainageways via diffuse flow.
Diffuse flow measures must be designed in accordance with the most
recent version of the NC DWQ Stormwater BMP Manual.
Should the site plan ever be modified in the future such that it no longer
meets ALL of the Low Density criteria listed above, then the a Stormwater
Management Plan (SMP) must be submitted to DWQ for its review and
approval. The SMP must comply with the version of Stormwater Management
Plan Requirements for Applicants other than the North Carolina Department of
Transportation that is in place on the date of the submittal of the SMP. All BMPs
must be designed in accordance with the version of the NC DWQ Stormwater
BMP Manual that is in place on the date of the submittal of the SMP.
RE: [Fwd: Autumn Corporation - Fayetteville Storm Drainage Rev 04...
Subject: RE: [Fwd: Autumn Corporation - Fayetteville Storm Drainage Rev 04-28-09]
From: "Patterson, Robert" <[e-mail]>
Date: Wed, 29 Apr 2009 06:55:40 -0400
To: Annette Lucas <[e-mail]>
He is doing great! Had a couple nights he has slept through the night.
Vegetated swales are fine for low density...I don't remember why we said to remove
them. Anyways, it looks like there is minimal piping. I'm ok with having to capture
and pipe out to daylight from those courtyard areas. If he is below the threshold,
no curb & gutter, and "away" from streams, I'd say he is good to go from the limited
plans he is showing us.
I'm usually ok with 2:1 slopes on that back side of a pond.
I'd like to go on the level spreader look-see, but I don't know that I have time.
Let me know if you see anything interesting.
Robert D. Patterson, PE
Environmental Engineer
NCDENR DWQ ( Stormwater Permitting
1617 Mail Service Center, Raleigh, NC 27699-1617 (Mailing)
512 N. Salisbury St, Raleigh, NC 27604 (Location & Parcels)
[phone] Phone [phone] Fax
Email: [e-mail] (NOTE NEW EMAIL ADDRESS)
Website: http://h2o.enr.state.nc.us/su/stormwater.html
*Please consider the environment before deciding to print this email*
E-mail correspondence to and from this address may be subject to the North Carolina
Public Records Law and may be disclosed to third parties.
-----Original Message-----
From: Annette Lucas [mailto:[e-mail]]
Sent: Tuesday, April 28, 2009 2:13 PM
To: Robert Patterson
Subject: [Fwd: Autumn Corporation - Fayetteville Storm Drainage Rev 04-28-091
Hi Robert!
I hope you are doing well - how's your son doing? I imagine you and your wife are
pretty tired out. . .
This is still that same project - the applicant is bending over backward to make it
"low density." What do you think? He removed most of the vegetated swales and the
runoff is now designed to sheet flow to the adjacent undeveloped areas. There is
still a bit of piping but it has been reduced. The applicant realizes that from here
on out, the development would have to meet the low density requirements.
I also have a question for you about embankments. Do you let applicants have 2:1 side
slopes on the outer portion of an embankment (I mean downslope of the wet detention
pond)? A consultant wants to design a 15'
tall one that way. He has to get a low hazard dam permit from DLR for it and he says
that the 2:1 side slope will meet DLR's requirements.
Thanks for any advice you may have,
Annette
Annette Lucas, PE
NC Division of Water Quality - 401 Oversight/Express Unit
1 of 2 4/29/2009 11:43 AM
RE: [Fwd: Autumn Corporation - Fayetteville Storm Drainage Rev 04...
2321 Crabtree Boulevard, Suite 250
Raleigh, North Carolina 27604
Phone: [phone]
Fax: [phone]
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
2 of 2 4/29/2009 11:43 AM
Re: Autumn Corporation - Fayetteville Storm Drainage Rev 04-28-09
Subject: Re: Autumn Corporation - Fayetteville Storm Drainage Rev 04-28-09
From: Annette Lucas <[e-mail]>
Date: Wed, 29 Apr 2009 11:19:22 -0400
To: Don Curry <[e-mail]>
Don,
Yes, you may treat it as a revision to the original submittal - just provide us with
any new information that has changed since last time.
Thanks,
Annette
Don Curry wrote:
Annette,
Thanks for the review and quick response. I will get it back in your
hands right away.
Is it appropriate to treat this as a revision to the original submission
and submit revised plan sheets and applications per the new layout?
That is, submit a new sheet 2/4 from the SWU-101 Application, but leave
all else the same? I believe this is the only page from the previously
submitted application that will change. The Low Density Supplement
previously submitted can remain as-is.
Thanks again.
Don L. Curry, Jr., P.E.
Stocks Engineering, P.A.
3344 Hillsborough St., Suite 250
Raleigh, NC 27607
[e-mail]
www.stocksengineering.com
[phone] (office)
[phone] (fax)
[phone] (cell)
-----Original Message-----
From: Annette Lucas [mailto:Annette.LucassNCMail.net] Sent: Wednesday, April 29,
2009 9:55 AM
To: Don Curry; Bob Dew
Subject: Re: Autumn Corporation - Fayetteville Storm Drainage Rev
04-28-09
Dear Don and Bob:
I have shared your most recent plans with my colleague and we agree that
this will meet the low density standards. Please proceed with a formal
submittal.
Thanks,
Annette
Don Curry wrote:
Annette,
One more item to note, this layout also reflects the removal of curb and gutter
around the parking lot and building, which we also discussed. There is a table
in the corner of the sheet summarizing the
1 of 3 4/29/2009 11:43 AM
Re: Autumn Corporation - Fayetteville Storm Drainage Rev 04-28-09
removed quantities compared to the original layout.
Thanks,
*Don L. Curry, Jr., P.E.*
Stocks Engineering, P.A.
3344 Hillsborough St., Suite 250
Raleigh, NC 27607
dcu-rrycvstocksengineering.com <mailto:dcurry@stocl;sengineering.com>
www.stocksengir_eering.com <httQ://www.stocksengineering.com/>
[phone] (office)
[phone] (fax)
[phone] (cell)
----------------------------------------------------------------------
*From:* Don Curry
*Sent:* Tuesday, April 28, 2009 1:29 PM
*To:* 'Annette Lucas'
*Cc:* 'Bob Dew'
*Subject:* Autumn Corporation - Fayetteville Storm Drainage Rev 04-28-09
Annette,
Thanks again for taking the time to meet with Bob and me this morning.
It was helpful to sit down and work through some of the site concerns together
in person.
Attached is a revised version of the layout we reviewed this morning. As
discussed, I have removed the perimeter ditches to facilitate dispersed
overland flow closer to the toe of slope and modified some of the contours to
more accurately reflect the drainage patterns along
the roadway. Upon your review and concurrence with this approach, I will
provide more detailed construction drawings with pipe inverts and
site contouring that more accurately reflect the intent.
Feel free to contact me with any questions or concerns as you review this
information.
I look forward to hearing back from you later this week.
Sincerely,
*Don L. Curry, Jr., P.E.*
Stocks Engineering, P.A.
3344 Hillsborough St., Suite 250
Raleigh, NC 27607
2 of 3 4/29/2009 11:43 AM
Re: Autumn Corporation - Fayetteville Storm Drainage Rev 04-28-09
[e-mail] <1„ailto:dcurryca?stocksenaineering.com>
www.stocksenaineering.com <rtty://e.ww.stocksenaineering.com/>
..
.....
[phone] (office)
[phone] (fax)
[phone] (cell)
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]
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
3 of 3 4/29/2009 11:43 AM