20061631 Ver 1_More Info Received_20070108

~~N 08,2007 01:59P B. Scott Mitchel 5770875 page 1
Mitchell Environmental, ~.A.
Facsimile Transmittal
.Date: ____. _ Pages (including cover page):
To:
Mrs. Annette Lucas
nWQ - 401 Wetlands Certification Unit
2321 Crabtree Boulevard
Suite 250
Nt', 27604
Fax Number: Phone Number:
733-b893 ._.__ _w.- ~ 7 ] 5-3425 , ,......_. -~--~ ...
From: _
Scott Mitchell - ~ ~ ~ ~ - ~ "~~
f _.._ ._.. . ~ . --- -- ,-....
Re:
TupperyPl.ace Subdivision (L)WQPruj~ct #06-1Ci31}
Commen#s:
Mrs. Lucas, ~__~ __._ .., ..---- -.,,...._
Attached is the level spreader worksheet for Tupper Place Subdivision that
we discussed earlier today. Please do not hesitate to call me if you have any
questions or if~vu Head any additional information. Thanks for your hcl .
6D2 L'cr,sl Acuclcmv Slreel, Suite 1 US Fuqugy-Yarinc,, Nurlla Carolina 27526
c)~j'ice: 919-SS7-46~Y2 !%ax.~ 91~T-.SS7-463 Mohilc: 919-669-11329
JAN-8-2087 MON 13:46 TEL:[phone] NAME:DWQ-WETLANDS P. 1

JAN 08,2007 02:OOP B. Scott Mitchel 5770875 page 2
DWQ Project No. y~p ' ~(, ~ r'
DMStON OF WATER QUALITY -LEVEL SPREADER WORKSH~t:T (112007)
1. t~RO.iECT INFORMATION (please complete the toiov°ing irdonnaGon):
Project Name : ~Lni c.r i~ f c•<c c ~.. b d: v" ~%.., _--
Contact Person: ~ ~ N M : } ot,, c !I _ Phone Numbor: [ J 4)_-S ~y • yL ti Z
Level Spreade- Il): Or+ki r ~ o-~ ~G.dad r7.~ls.. f.;. We.~lr~..~/ .. - -
Level Spreader Length Z ~ fL
Drainage Area (J. 07 ^ ac.
Impervious Area .! ac.
Forebay Area N grftZ
Maximum Fitter StriplBuffer 5bpa _ _ ~.. -.- %
9
(perpendicular to Bow)
(on-site and off-site drainage to the level spreader)
(on-site and oA-site drainage to the level spreader)
(0.2% of the wntributing impervious surface area)
(6°,6 for forested, leaf cover, $4'o for thick ground Dover
Mex. Discharge hom 1"Mr Storm ~ 0. cfs
Max, Discharge to Level Spreader 1n cts ~,.r
Filter Strip/ Zone 2 Buffer Vegetation ~rp,~ + ~ rrl f Ww b. ~"~ti7ick ground cover or grass; canopied tarsal with leaf fitter
groundcover)
Pre-#reatment or Bypass Method Used ~'yc -rrr cf ~. r.a. !'
II. REQUIRED tTEY$ GHEGKLIST
Initial in the space provided to indicate the folbwing design requirements have been mat and supporting documentation is attached. !la
requirement btu not been reef. affach an explarrafion of why. At a minimum, a complete stormwater management plan submit~l includes
a worksheet for each BMP, design cakwlations, plans and sperahrattions showing aU BMPs and outlet structure details, a detailed
drainage plan and a fully executed operation and maintenance agreement. An incomplete submittal package will result in a roquast for
additional information and wdl substantially delay final review and approval of the project.
A~licants Initials
$tM ^Project Site was visited prior to designing level spreader.
3-~3-7.auy`Date of the Site visit. PLEASE ATTACH TIME-DATBp DIGITAL PHOTD OF EXISTING t3UFFr=R CONDITIONS.
___ , $I~,~Level spreader is al least 13 ft. per cfs for thick ground cover or grass a tS5 ft per cis in canopied forest with leaf
litterfar 50-foot twtfer; 50 ft per cfs for 100-foot buffer, or 4D tt. per cfs for 150-foot buffer.
Pre-Fomrad Scour Notes are on Bel sbpes only.
__ _1~I~. No strictures are kycated in protected buffers (must meet no praclicai aitematives aiteria),
Design Altama6ve (if any) and Bypass meMrod used:
N~A „_, Bypass conveyance method is specified and plan details and calculations are provided
IV/~ ~Altemative design option is specified and plan detains and calculations are provided.
~~i~ Discharge to lave! spreader and subsequent filter step is hydraulicaNy and spatiaNy separate from the bypass
disd+arge.
~ No structures are located in protected buffers.
Plan details for the bypass and outlets are provided.
..~...M .. The operation and maintenance agreement includes annual erasion and vegetation repaF.
t3jw,~,~____Tha operatan and maintenance agreement signed and notarized by the responsible party is provided.
JAN-8-2887 MON 13:47 TEL:[phone] NAME:DWQ-WETLANDS P. 2