SW7110304_HISTORICAL FILE_20110426

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
C� HISTORICAL FILE
(❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

Booth&Associates, Inc.
engineering for the future since 1960
April 26. 2011
VIA UPS/GROUND
Mr. Samir Dumpor
Environmental Engineer
North Carolina Division of Water Quality
943 Washington Square Mall
Washington, North Carolina 27889
Subject: Carteret -Craven Electric Cooperative
Newport, North Carolina
Temples point - 115 to 15 x 25 kV Substation
Ralucst for Additional Information
Dear Mr. Dumpor:
Enclosed for your review is the additional information you requested for the subject
project. Below you will find a description of how we addressed each item in your letter.
1) "fable 10-4 for 90% TSS removal ponds in Coastal Regions Was used 10
VVVV determine the SA/DA ration.
2) The permanent pool average depth Was calculated using Option 2. The
calculated result was 3.11 feet. To achieve the 3.0 minimum permanent pool
average depth, the side slopes below the vegetative shelf were ntcdified to a 2:1
grade and an additional one (1) foot ofdepth were added to the pond.
3) The average head used in the orifice calculation was modified to 1/3 of the
driving head. The orifice diameter did not change.
/4) A vegetation plan was added to Drawing GRI of2 and SM2 of detailing the
requirements from the Wet Detention Basin Chapter of the BMp Mamtal.
5) All documents and calculations were revised and two (2) copies of each have
been included.
[('you should have any questions, please contact our office.
Sincerely,
BOOTH & ASSOCIATES, INC
Bcl3ryan U. Maness, PE
bdnl/kpp APR 27 G1Jt1
Enclosures �''
�wa-VARO
cc: Mr. Jacob 1-1. Joplin, PE
Mr. William S. Dorsett, PE
08-6836-8003/308 1011 Schaub Drive 919.851.8770 office
Raleigh, NC 27606 919.859.5918 facsimile
www.booth-assoc.com

A!'
NC®ENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Division of Water Quality
Coleen H. Sullins
Director
Mr. Craig A: Conrad, CEO and General Manager
Carteret -Craven Electric Cooperative
PO Box1490
Newport, NC 28570
Dear Mr. Conrad:
Dee Freeman
Subject: Request for Additional Information
Stormwater Project No. SW7110304
Temples Point 115 to 15X25 KV Substation
Craven County
The Washington Regional Office received a Coastal Stormwater Permit Application for Temples
Point 115 to 15X25 KV Substation project on March 4, 2011. A preliminary review of that
information has determined that the application is not complete. The following information is
needed to continue the stormwater review:
�1. According to the Wet Detention Basin Supplement, a 90% TSS removal pond
was proposed; however in Surface areas section on page 2 of 2 of the
Supplement and in the Wet Detention basin Calculations, it appears that the
Table 10-1 for SA/DA ration was used. This table is used for 85% TSS removal
ponds in Mountain and Piedmont Regions. Please use table 10-4 for 90% TSS
removal ponds in Coastal Region and revise the Calculations, the Supplement
and the Plans accordingly.
/2. Please be advised that the Table 10-4 is based on Percent Impervious coverage
and the Permanent Pool Average Depth. In your calculations permanent pool
depth used in table 10-1 was total depth of the pond. Section SA/DA Table Data
of the Wet Detention basin Supplement has 2 options of calculating average
pond depth. None of these 2 options were used in your calculations. Please
revise your calculations and the Supplement to use Average Pond Depth and
revise the Plans accordingly. Refer to the Wet Detention pond Chapter of the
BMP Manual, page 10.3.4 for average depth calculation methods. Use this
average depth to find correct SA/DA ration in Coastal table for permanent pool
sizing.
3. It appears that the Average Head used in the Orifice Calculations is''/z of the total
Head in pond (from centroid of orifice to the Temporary Pool elevation). Refer to
the Chapter 3 of the BMP Manual for the orifice calculation and use 1/3 of the
Driving Head.
V14. Provide more detailed vegetation plan for vegetative shelf of the pond.
According to the Wet Detention Basin Chapter of the BMP Manual (Chapter 10,
Section 10.3.7.) at least 3 diverse species of shallowwater emergent and 3
species of shallow land herbaceous vegetation should be incorporated. Provide
details about size of containers, spacing, local source and time of year for
planting. Refer to the Chapter 6 of the BMP Manual.
✓5. t Make sure to update all documents, Supplement and the Plans to reflect above
changes. Provide two copies of revised plan sheets, calculations and other
requested documents.
North Carolina Division of Water Quality Internet: www.ncwatcrtlualilv.org
943 Washington Square Mall Phone: [phone]
Washington, NC 27889 FAX [phone]
An Equal OpportunitylAffrmative Action Employer — 50% Recyded110Y Post Consumer Paper
None
rthCarolina
Naturally

Page 2 of 2
The requested information should be received
application will be returned as incomplete. The
all required items, including the application fee
in this Office pri �5201 ",e
return of a proje ill necessitate resdbmittal of
If you need additional time to submit the information, please mail, email or fax your request for
a time extension to the Division at the address and fax number at the bottom of this letter. The
request must indicate the date by which you expect to submit the required information.
The construction of any impervious surfaces, other than a construction entrance under an
approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject
to enforcement action pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. If you have any
questions concerning this matter please feel free to call me at [phone] or email me at
[e-mail].
Sincerely,
Samir Dumpor
Environmental Engineer
CC: Bryan Maness, PE, Booth & Associates, Inc. (1011 Schaub Drive, Raleigh, NC
27606)
Washington Regional Office

CARTERET CRAVEN EC
Date :
2/24/2011
TEMPLE'S POINT SUBSTATION
Run By:
BDM
Erosion and Sediment Control
Page :
1 of 1
Wet Detention Basin Calculation
Total Property Area (TPA) = 1.75 Acres
Drainage Area (DA) : 1.28 Acres Impervious Area (IA) : 0.81 Acres
Percent Impervious, (1) = 63.28 %
Pond Design Criteria :
Permanent Pool Elevation :
20.5
Ft.
Design Storm (DS) : 1.5 In.
Permanent Pool Length (L) :
164
Ft.
Total Suspended Solids (TSS) : 90 %
Permanent Pool Width (W) :
36
Ft.
Note : If TSS = 90%, No Vegetated i e�equired
Permanent Pool Depth (D) :
4.5
Ft.
Minimum Required Surface Area At Permanent Pool:
(Refer to Surface Area to Drainage Area Ratio Table 10-3 WET BASIN SUPP.)
Surface Area to Drainage Area Ratio: SAIDA = 7.36 % (Table 10-4)
Required Permanent Pool Surface Area (RPPSA) : SAIDA x DA = 4104 Sq. Ft.
Actual Permanent Pool Surface Area (PPSA) : 5904 Sq. Ft. (PPSA > RPPSA)
Actual Permanent Pool Volume (PPV) : 13085 Cu. Ft. V
Minimum Reauired Temnorary Pool Area & Volume ISimoie Method by Tom Schuler
Runoff Coefficient (Rv) : 0.05 + 0.009 x I =
0.62
Required Temporary Pool Volume (RTPV) : DS x Rv x DA =
4318
Cu. Ft.
V/
Minimum Depth of Temporary Pool :
0.73
Ft.
V /
Actual Depth of Temporary Pool :
1.5
Ft.
Temporary Pool Elevation :
22.0
V
Actual Temporary Pool Surface Area (TPSA) :
9360
Sq. Ft.
Actual Temporary Pool Volume (TPV) : 12159 Cu. Ft. (TPV > RTPV)
Minimum Required Forebay Area & Volume:
Required Forebay Volume (RFV) : 20% x PPV = 2617 Cu. Ft.
Acutai Forebay Length : 42.00 Ft.
Actual Forebay Surface Area (FSA) : 1512 Sq. Ft.
Actual Forebay Volume (FV) : 2646 Cu. Ft. (FV > RFV)
Orifice Sizing :
Required Flowrate for a 2 Day Drawdown (RF2) : TPV / 172800 seconds = 0.07 Cfs
Required Flowrate for a 5 Day -Draw own (RF5) : TPV / 432000 seconds = 0.03 Cfs
Orifice Diameter 1.5 In. Ave. Head (h) = Driving Head/3 = 0.48 Ft.
Actual Flowrate ( 'I;,)_:-C-SQRT[2`g"h] = 0.04 Cfs (RF2 < AF < RF5) 1 /
Copyright 2011 Booth & Associates, Inc.

� � 111 I I sW7J103oy- (5.D)
08-6836-80031308 — Carteret- Gaven Electric Cooperative �� 5 .�C I ;. F� �y
�7
FINANCIAL RESPONSIBILITYIOWNERSHIP FORM MAR n 5 2011
SEDIMENTATION POLLUTION CONTROL ACT
"JAL;T; `'Z;,T',CN
No person may initiate any land -disturbing activity on one or more acres as covered/,try},tCpvF{c(,beforq;Lh' `„�,t_`
form and an acceptable erosion and sedimentation control plan have been completed and approve` .01F
Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and, if
the question is not applicable or the e-mail and/or fax information unavailable, place N/A in the blank.)
Part A.
1. Project Name Carteret -Craven Electric Cooperative -Temples Point 115 to 15 x 25 kV Substation
2. Location of land -disturbing activity: County Craven City or Township Havelock
Highway/Street N.C. Rt. 101 Latitude 34.8686 Longitude-76.7963
3. Approximate date land -disturbing activity will commence: June 2011
4. Purpose of development (residential, commercial, industrial, institutional, etc.): Electrical Substation
5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 1.76
6. Amount of fee enclosed: $ 130.00 . The application fee of $65.00 per acre (rounded up
to the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $565).
7. Has an erosion and sediment control plan been filed? Yes No_ Enclosed X
8. Person to contact should erosion and sediment control issues arise during land -disturbing activity:
Name Bryan D. Maness, PE E-mail Address ManessBD(a),booth-assoc.com
Telephone [phone] Cell # [phone] Fax # [phone]
I
Landowner(s) of Record (attach accompanied page to list additional owners):
Carteret -Craven Electric Cooperative
Name
Post Office Box 1490
Current Mailing Address
Newport North Carolina 28570
City State Zip
[phone] [phone]
Telephone Fax Number
1300 Highway 24 West
Current Street Address
Newport North Carolina 28557
City State Zip
10, Deed Book No. 2749 Page No. 724 Provide a copy of the most current deed.
Part B.
Person(s) or firm(s) who are financially responsible for the land -disturbing activity (Provide a
comprehensive list of all responsible parties on an attached sheet):
Carteret -Craven Electric Cooperative
Name -
Post Office Box 1490
Current Mailing Address
Newport North Carolina 28570
City State Zip
Telephone [phone]
[phone] [phone]
Telephone Fax Number
1300 Highway 24 West
Current Street Address
Newport North Carolina 28557
City State Zip
Fax Number [phone]

08-6836-8003/308— Carteret- Craven Electric Cooperative
2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address
of the designated North'Carolina Agent:
Not Applicable
Name E-mail Address
Current Mailing Address
City State
City
Telephone Fax Nu
Street Address
State Zip
(b) If the Financially Responsible Party is a Partnership or other person engaging in business under an
assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible
Party is a Corporation, give name and street address of the Registered Agent:
Not Applicable
Name of Registered Agent
Current Mailing Address
State Zip
Telepho
E-mail Address
Current Street Address
City State Zip
Fax Number
The above information is true and correct to the best of'my knowledge and belief and was provided
by me under oath (This form must be signed by the Financially Responsible Person if an individual
or his attorney -in -fact, or if not an individual, by an officer, director, partner, or registered agent with
the authority to execute instruments for the Financially Responsible Person). I agree to provide
corrected information should there be any change in the information provided herein.
Craig A. Conrad PE
Type x; yr{nt me
Signature
CEO & General Manager
Title or Authority
February 28,:.2011
Date
1, Peggy Ann Horrell , a Notary Public of the County of Carteret
State of North Carolina, hereby certify that Craig A. Conrad appeared
personally before me this day and being duly sworn acknowledged that the above form was
executed by him.
Witness my hand and Notarial seal, this
Seal
28th day of February 20 11
Notary
My commission expires 4/1/2015

Booth&Associates, Inc.
engineering for the future since 1960
March 3, 2011
Mr. Al Hodge
North Carolina Department of
Environment & Natural Resources
Water Quality Division
943 Washington Square Mall
Washington, North Carolina 27889
Subject: Carteret -Craven Electric Cooperative
Newport, North Carolina
Temples Point
115 to 15 x 25 kV Substation
Stormwater Management Plan
Dear Mr. I -lodge:
VIA UPS/GROUND
L
MAR 4 2011
Enclosed for standard review is a copy of the Stormwater Management Plan
for the subject project. Also enclosed is an additional set of drawings, a check to
cover the review tee, a Stormwater Management Permit Application form, a Wet
Detention Basin Operation and Maintenance Agreement, and a Wet Detention Basin
Supplement forth. For your reference, an Erosion & Sediment Control plan has been
submitted to the Land Quality Division.
If you should have any questions, please call our office.
Sincerely,
BOOTH & ASSOCIATES, INC.
Bryan D. Maness, PE
bdrn/kpp
cc: Mr. Jacob 1-1. Joplin, PE
Mr. William S. Dorsett, PE
Enclosures
08-6836-8003/308
1011 Schaub Drive 919.851.8770 office
Raleigh, NC 27606 919.859.5918 facsimile
w .booth-assoc.com