20071881 Ver 1_CAMA Application_20071106

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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Coastal Management
Michael F. Easley, Governor James H. Gregson, Director William G. Ross Jr., Secretary
November 5, 2007
MEMORANDUM:
TO: Cyndi Karoly
Environmental Biological Supervisor
Division of Water Quality
FROM:
SUBJECT:
Applicant:
Project Location:
Doug Huggett
Major Permits Processing Coordinator
07-1881
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NOV 6 2007
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CAMA/DREDGE & FILL Permit Application Review
CURRITUCK COUNTY WATER DEPARTMENT
Newbern's Landing Road (SR 1120), and on the North River, Jarvisburg
Proposed Project: Discharge/diffuser structure offshore; Connect to subterranean waterline
Please indicate below your agency's position or viewpoint on the proposed project and return this
form by 11/25/07,. to 400 Commerce Avenge, Morehead City,.. NC 28557. If you have any
questions regarding the proposed project, please contact Frank Jennings at [phone]. When
appropriate, in-depth comments with supporting data are requested.
REPLY:
SIGNED
DATE
1367 U.S. 17 South, Elizabeth City, North Carolina 27909
Phone: [phone] FAX: [phone] Internet: www.nccoastalmanagement.net
An Equal Opportunity 1 Affirmative Action Employer - 50% Recycled 110% Post Consumer Paper
This agency has no objection to the project as proposed.
This agency has no comment on the proposed project.
This agency approves of the project only if the recommended changes are
incorporated. See attached.
This agency objects to the project for reasons described in the attached
comments.

DIVISION OF COASTAL MANAGEMENT
FIELD INVESTIGATION REPORT
1. APPLICANT'S NAME: CURRITUCK COUNTY WATER DEPARTMENT
2. LOCATION OF PROJECT SITE: End of Newbern's Landing Road (SR 1120),
Currituck County and on the North River.
Photo Index - 2006: 192-7076 (E 8) 2000: 192-2240 (U 18) 1995: 192-2022 (S 22)
1989: 143-5 (S 14) 1984: 126-554 (G12) 1978: 140-476 (L 14)
State Plane Coordinates - X: 2925900 Y: 891600 Jarvisburg, NC
GPS: B110108A LL
3. INVESTIGATION TYPE: CAMA / D&F
4. INVESTIGATIVE PROCEDURE: Dates of Site Visit -October 24, 2007
Was Applicant Present - NO
5. PROCESSING PROCEDURE: Application Received Complete -October 30, 2007
Office -Elizabeth City
6. SITE DESCRIPTION:
(A) Local Land Use Plan -Currituck County
Land Classification From LUP -Conservation
(B) AEC(s) Involved: EW, PTA, ES
(C) Water Dependent: Yes
(D) Intended Use: Public
(E) Wastewater Treatment: Existing - N/A
Planned - N/A
(F) Type of Structures: Existing -None
Planned -Discharge line, diffuser structure
(G) Estimated Annual Rate of Erosion: N/A
Source - N/A
7. HABITAT DESCRIPTION: [AREA]
DREDGED FILLED OTHER
(A) Public Trust Areas,
Estuarine Waters
(B) Estuarine Shoreline
154 sf
Disturbed/Occupied
400 sf Disturbed
(C) Total Area Disturbed: 554 sf [.013 acres]; (400 sf on land)
(D) Primary Nursery Area: NO
(E) Water Classification: SC Open: YES
8. PROJECT SUMMARY: The applicant proposes to install a dischargeldiffuser structure
approximately 1800 feet offshore in the North River. The structure will be connected
to a 12-inch subterranean waterline from Newbern's Landing Road, SR 1120, in
Jarvisburg.
-i-

Currituck County Water Department
Bio Report
Project Setting
The Currituck County Water Department is expanding the capacity of the county water
treatment plant by construction of a reverse osmosis facility at the plant site, located at 446
Maple Drive (SR 1246) in Maple, Currituck County. A concentrate discharge site is required
for the normal operation of the new facility. Discharge Permit No. NC 0088650 to discharge
wastewater under the National Pollutant Discharge Elimination System was issued effective
October 8, 2007 for the facility.
The development site is the right of way for Newbern's Landing Road (SR 1120) in Powells
point, Currituck County, and on the North River entrance to the Albemarle Sound. The site
is located approximately 20 miles from the water treatment plant. Newbern's Landing Road
ends approximately 50 feet from the normal water line (NWL) and the area between the
road and North River consists of a narrow sand strand beach along the shoreline with the
remainder of the area being flat, vegetated with native grasses, and having sandy soils.
The right of way is 60 feet wide with a shoreline of the same length. Several old pilings are
located near shore and are occasionally used as temporary moorings by local hunters.
Submerged Aquatic Vegetation (SAV) located near shore includes Eurasian water milfoil
and widgeon grass and the bottom is sandy with water depths of less than -2 feet below
NWL.
The adjacent riparian property to the north is undeveloped and the property on the south
has asingle-family dwelling and a pier.
The develop site is located approximately 1800 feet offshore in an area with a water depth
of -8 feet below NWL. The waters of the North River in this area are classified as SC by
the Division of Environmental Management and are open to shellfishing according to the
current maps provided by the Shellfish Sanitation Branch.
Development Proposal
The applicant proposes to construct a discharge and diffuser structure approximately 1800
feet waterward of NWL in the North River. The discharge/diffuser structure will be located
at the terminus of a 12-inch PVC water line that will eventually extend from the water plant
to Newbern's Landing Road. At the end of the pavement of Newbern's Landing Road, a
directional bore machine will be utilized to bore a subterranean 12-inch high-density
polyethylene pipe to the location of the proposed discharge/diffuser. A 20-foot by 20-foot
pit, 5 feet deep, with a 3-foot berm, will be constructed for the drilling site and to contain the
drilling mud/bentonite slurry. The line will be installed approximately 5 feet below the bottom
of the waterbody. The borehole will be approximately 16 inches in diameter to allow for the
installation of the pipe and approximately 93 cubic yards of subterranean material will be
removed. Approximately 74 cubic yards of upland material will be excavated for the
temporary boring pit.
-~-

Currituck County Water Department
Bio Report
The proposed diffuser structure will consist of a 52-foot long "T" head of 12-inch pipe with
openings for 12 nozzles. The structure will be held in place by two, 12-inch pilings that will
also be used to mark the area for boaters. An Environmental Assessment/FONSI was
issued on September 12, 2006 by the Department of Administration.
Anticipated Impacts
The diffuser structure will cover an area 1 foot wide and 52 feet long, the portion of the pipe
that emerges from the river bottom will cover an area 1 foot wide and 100 feet long. An
area of approximately 154 square feet of sandy river bottom will be occupied/disturbed
during installation of the structure, involving the Public Trust Area and Estuarine Waters
Areas of Environmental Concern.
The boring pit will involve approximately 400 square feet of the Estuarine Shoreline.
Spent boring material will be removed from the site and deposited at the Currituck County
Landfill.
Temporary water turbidity will occur during construction of the project.
Submitted by: Frank A. Jennings, III
Date: October 30, 2007
-3-

MAJOR PERMIT FEE MATRIX
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Applicant: c G~~ ~1~:.
Selection Development Type Fee DCM % DWQ
(14300 1601 435100093 1625 6253) (24300 1602 435100095 2341)
I. Private, non-commercial
development that does not $250 100% ($250) 0% ($0)
involve the filling or
excavation of any wetlands
or o en water areas:
II. Public or commercial
® development that does not $400 100% ($400) 0% ($0)
involve the filling or
excavation of any wetlands
or o en water areas:
III. For development that
involves the filling and/or
excavation of up to 1 acre
of wetlands and/or open
water areas, determine if A,
B, C, or D below a lies:
III(A). For Private non-
commercial development, if $250 100% ($250) 0% ($0)
General Water Quality
Certification No. 3301 (see
attached can be a lied:
III(B). For public or
commercial development, if $400 100% ($400) 0% ($0)
General Water Quality
Certification No. 3301 (see
attached can be a lied:
III(C). If General Water
Quality Certification No. $400 60% ($240) 40% ($160)
3301 (see attached) could
be applied, but DCM staff
determined that additional
review and written DWQ
concurrence is needed
because of concerns
related to water quality or
a uatic life:
III(D). If General Water
~ Quality Certification No. $400 60% ($240) 40% ($160)
3301 (see attached) cannot
be a lied:
IV. For development that
involves the filling and/or $475 60% ($285) 40% ($190)
excavation of more than
one acre of wetlands and/or
o en water areas:

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CAMA Major Development
Permit Application for the
Mainland WTP
Currituck County,
North Carolina
Revised October 2007
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NOV 6 2007
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Y~£1'lAND3 MID STORl~ANAT6R BRANCH

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ARCADIS
ARCADIS G&M of North Carolina.
Infrastructure, environment, buildings ,n~.
801 Corporate Center Drive
Suite 300
Raleigh
Frank Jennings North Carolina 27607
North Carolina Department of Environment and Natural Resources Tel s19.a54.12a2
Division of Coastal Management Fax [phone]
1367 U.S. 17 SOUth www.arcadis-us.com
Elizabeth City, NC 27909
WATER RESOURCES
Subject:
CAMA Major Permit Application for the Currituck County Mainland
Water Treatment Plant
Date:
Dear Mr. Jennings: October 17, 2007
We have received your comments dated October 17, 2007. We have revised the Contact:
CAMA Major Permit application to address your comments and our conversations David S. Briley, P.E.
with you. On behalf of Currituck County, please find enclosed one (1) copy of the
Phone:
CAMA major permit application for the Mainland Water Treatment Plant (WTP) g19-854-1282 x 142
suitable for photocopy consisting of:
Email:
^ Application Form DCM-MP1
David. [e-mail]
^ Excavation and Fill Attachment Form DCM-MP2
Our ref:
^ Structures Attachment Form DCM-MP4 NC706021.2000.00007
^ All relevant additional information
A check for the permit application processing fee was sent to you in our submittal
dated September 28, 2007. If you have any questions regarding this application,
please contact Linda Diebolt or myself at 919.854.1282. We look forward to working
with you on this important project for Currituck County.
Sincerely,
S h o in ,Inc.
avid S. Briley, P.E.
Copies:
Eric Weatherly, Currituck County
Pat Irwin, Currituck County
Pat McDowell (w/enclosures)
File (w/enclosures)
Part of a .bigger picture

DCM MP-1
APPLICATION for --
Maior Development Permit ° ~ ~ ' 8 8
(last revised 12/27/06)
North Carolina DIVISION OF COASTAL MANAGEMENT
7. Primary Applicant/ Landowner Information
Business Name Project Name (if applicable)
Currituck County Mainland Water Treatment Plant
Applicant 1: First Name MI Last Name
Leland Gibbs
Applicant 2: First Name MI Last Name
Eric Weatherly
If additional applicants, please attach an additional page(s) with names listed.
Mailing Address PO Box City State
446 Maple Road Maple NC
ZIP Country Phone No. FAX No.
27956 US 252 - 453 - 2155 ext. 252 - 232 - 3298
Street Address (if different from above) City State ZIP
Email
[e-mail]; [e-mail]
2. Agent/Contractor Information
Business Name
ARCADIS G&M Of North Carolina
Agent/ Contractor 1: First Name MI Last Name
David S Briley
Agent/ Contractor 2: First Name MI Last Name
Mailing Address PO Box City State
801 Corporate Center Drive, Suite 300 Raleigh NC
ZIP Phone No. 1 Phone No. 2
27607 919 - 854 - 128 2 ext. - - ext.
FAX No. Contractor #
919 854 5448
Street Address (if different from above) City State ZIP
Email
[e-mail]
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Form DCM MP-1 (Page 2 of 5)
APPLICATION for
Major Development Permit
3. Project Location
County (can be multiple) Street Address State Rd. #
Currituck North River at Newbern's Landing Road 1120
Subdivision Name City State Zip
N/A Jarvisburg NC 27947 -
Phone No. Lot No.(s) (if many, attach additional page with list)
- - ext. ,
a. In which NC river basin is the project located? b. Name of body of water nearest to proposed project
Pasquotank North River/Albemarle Sound
c. Is the water body identified in (b) above, natural or manmade? d. Name the closest major water body to the proposed project site.
®Natural ^Manmade ^Unknown North River/Albemarle Sound
e. Is proposed work within city limits or planning jurisdiction? f. If applicable, list the planning jurisdiction or city limit the proposed
®Yes ^No work falls within.
Currituck County
4, Site Description
a. Total length of shoreline on the tract (ft.) b. Size of entire tract (sq.ft.)
60 N/A - NCDOT right-of-way
c. Size of individual lot(s) d. Approximate elevation of tract above NHW (normal high water) or
NWL (normal water level)
(If many lot sizes, please attach additional page with a list) 2 feet ^NHW or ®NWL
e. Vegetation on tract
Grasses and wild herbaceous plants.
f. Man-made features and uses now on tract
The project site cotains a state maintained road (SR 1120, Newberns Landing Road) that ends at the North River.
g. Identify and describe the existing land uses adjacent to the proposed project site.
Developed, single-family residential
h. How does local government zone the tract? i. Is the proposed project consistent with the applicable zoning?
Project site is Basic Residential (Attach zoning compliance certificate, if applicable)
®Yes ^No ^NA
j. Is the proposed activity part of an urban waterfront redevelopment proposal? ^Yes ®No
k. Has a professional archaeological assessment been done for the tract? If yes, attach a copy. ^Yes ®No ^NA
If yes, by whom?
I. Is the proposed project located in a National Registered Historic District or does it involve a ^Yes ®No ^NA
National Register listed or eligible property?
<Form continues on next page>
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Form DCM MP-1 (Page 3 of 5)
APPLICATION for
Major Development Permit
m. (i) Are there wetlands on the site? ^Yes ®No
(ii) Are there coastal wetlands on the site? ^Yes ®No
(iii) If yes to either (i) or (ii) above, has a delineation been conducted? ^Yes ®No
(Attach documentation, if available)
n. Describe existing wastewater treatment facilities.
Currituck County operates a wastewater treatment plant that services the project area; however, no structures are present
and no wastewater is generated or disposed of at the project site.
o. Describe existing drinking water supply source.
Currituck County currently operates a 1.4 mgd conventional water treatment plant (WTP). Treatment consists of a
greensand filtration system for groundwater pumped from the Upper Yorktown aquifer with a series of 28 shallow, low-yield
wells.
The proposed project will connect to a new 5.0 mgd WTP with reverse osmosis system that will treat groundwater drawn
from the Middle Yorktown Aquifer. No drinking water supplies are present on the subject property.
p. Describe existing storm water management or treatment systems.
No stormwater management or treatment systems are present at the discharge site.
5. Activities and Impacts
a. Will the project be for commercial, public, or private use? ^Commercial ®PubliGGovernment
^ Private/Community
b. Give a brief description of purpose, use, and daily operations of the project when complete.
The outfall will provide discharge from a reverse osmosis WTP, which is a separate project.
c. Describe the proposed construction methodology, types of construction equipment to be used during construction, the number of each type
of equipment and where it is to be stored.
An excavator will be used to dig a temporary pit. The concentrate pipe will then be directionally drilled using a drill rig. The
tailings from the drilling operation will be placed within a dump truck using a bulldozer and removed from the site. The
bulldozer will be used to fill in the temporary pit. The aforementioned equipment will be stored onsite during pipe installation.
d. List all development activities you propose.
Placement of outfall pipeline extending offshore approximately 1,800 feet. HDPE pipe to be located a minimum of five feet
below the botton of North River.
e. Are the proposed activities maintenance of an existing project, new work, or both? New work
f. What is the approximate total disturbed land area resulting from the proposed project? 3,300 ®Sq.Ft or {]Acres
g . Will the proposed project encroach on any public easement, public accessway or other area ®Yes ^No ^NA
that the public has established use of?
h . Describe location and type of existing and proposed discharges to waters of the state.
The buried concentrate pipe will discharge via a diffuser approximately 1,800 feet into the North River. The discharge will
consist of a brine concentrate stream, which is the primary by-product of the reverse osmosis process.
i. Will wastewater or stormwater be discharged into a wetland? ^Yes ®No ^NA
If yes, will this discharged water be of the same salinity as the receiving water? ^Yes ^No ®NA
j. Is there any mitigation proposed? ^Yes ®No ^NA
If yes, attach a mitigation proposal.
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Form DCM MP-1 (Page 4 of 5)
APPLICATION for
Major Development Permit
<Form continues on back>
6. Additionallnformation
In addition to this completed application form, (MP-1) the following items below, if applicable, must be submitted in order for the application
package to be complete. Items (a) - (t) are always applicable to any major development application. Please consult the application
instruction booklet on how to properly prepare the required items below.
a. A project narrative.
b. An accurate, dated work plat (including plan view and cross-sectional drawings) drawn to scale. Please give the present status of the
proposed project. Is any portion already complete? If previously authorized work, clearly indicate on maps, plats, drawings to distinguish
between work completed and proposed.
c. A site or location map that is sufficiently detailed to guide agency personnel unfamiliar with the area to the site.
d. A copy of the deed (with state application only) or other instrument under which the applicant claims title to the affected properties.
e. The appropriate application fee. Check or money order made payable to DENR.
f. A list of the names and complete addresses of the adjacent waterfront (riparian) landowners and signed return receipts as proof that such
owners have received a copy of the application and plats by certified mail. Such landowners must be advised that they have 30 days in
which to submit comments on the proposed project to the Division of Coastal Management.
Name Walton H Carter Phone No. 252-453-8483
Address PO Box 32, Coinjock, NC 27923
Name Mary R Kirkland Phone No. 252-491-5385
Address PO Box 307, Powells Point, NC 27966
Name Phone No.
Address
g. A list of previous state or federal permits issued for work on the project tract. Include permit numbers, permittee, and issuing dates.
National Pollution Discharge Elimination System Draft issued -August 15, 2007, Final expected Oct. 2007
h. Signed consultant or agent authorization form, if applicable.
i. Wetland delineation, if necessary.
j. A signed AEC hazard notice for projects in oceanfront and inlet areas. (Must be signed by property owner)
k. A statement of compliance with the N.C. Environmental Policy Act (N.C.G.S. 113A 1-10), if necessary. If the project involves expenditure
of public funds or use of public lands, attach a statement documenting compliance with the North Carolina Environmental Policy Act.
7. Certification and Permission to Enter on Land
I understand that any permit issued in response to this application will allow only the development described in the application.
The project will be subject to the conditions and restrictions contained in the permit.
I certify that I am authorized to grant, and do in fact grant permission to representatives of state and federal review agencies to
enter on the aforementioned lands in Aco~nnection with evaluating information related to this permit application and follow-up
monitoring of the project. t-s Cwb~K R`SV'" °~'- ""'1
I further certify that the information provided in this application is^truthful(to the best of my knowledge.
Date /GI1~~o7 Print Name t/QVi q 5~ ~r'i 1e~
Signature
Please indicate application attachments pertaining to your proposed project. -
®DCM MP-2 Excavation and Fill Information ^DCM MP-5 Bridges and Culverts
^DCM MP-3 Upland Development
®DCM MP-4 Structures Information
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Form DCM MP-1 (Page 5 of 5)
APPLICATION for
Major Development Permit
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Form DCM MP-2
EXCAVATION and FILL
(Except for bridges and culverts)
Attach this form to Joint Application for CAMA Major Permit, Form DCM MP-1. Be sure to complete all other sections of the Joint
Application that relate to this proposed project. Please include all supplemental information.
Describe below the purpose of proposed excavation and/or fill activities. All values should be given in feet.
Access Other
Channel
(NLW or Canal Boat Basin Boat Ramp Rock Groin Rock
Breakwater (excluding
shoreline
NWL) stabilization

Length 1800'
Width 16"
Avg. Existing
NA
NA'
5'
Depth
Final Project NA NA 5'
Depth
7. EXCAVATION ^This section not applicable
a. Amount of material to be excavated from below NHW or NWL in b. Type of material to be excavated.
cubic yards. Sand
95 cubic yards
c. (i) Does the area to be excavated include coastal wetlands/marsh d. High-ground excavation in cubic yards.
(CW), submerged aquatic vegetation (SAV), shell bottom (SB), Approximately 74
or other wetlands (WL)? If any boxes are checked, provide the
number of square feet affected.
^CW ^SAV ^SB
^WL ®None
(ii) Describe the purpose of the excavation in these areas:
A pit will be excavated at the landward end of the directionally
drilled portion of the pipeline to collect drilling fluids and cuttings.
Drilling fluids will be recycled. Cuttings will be collected for
offsite disposal. The discharge pipeline will connect to a
separate pipeline that extends 21 miles to the Mainland WTP.
2. DISPOSAL 'OF EXCAVATED MATERIAL ^This section not applicable
a. Location of disposal area. b. Dimensions of disposal area.
Slurry from the directional drilling will be disposed of at the 20 ft x 100 ft
Currituck County Landfill, 216 Airport Rd., Barco, NC
c. (i) Do you claim title to disposal area? d. (i) Will a disposal area be available for future maintenance?
®Yes ^No ^NA ^Yes ^No ®NA
(ii) If no, attach a letter granting permission from the owner. (ii) If yes, where?
e. (i) Does the disposal area include any coastal wetlands/marsh f. (i) Does the disposal include any area in the water?
(CW), submerged aquatic vegetation (SAV), shell bottom (SB), ^Yes ®No ^NA
or other wetlands (WL)? If any boxes are checked, provide the
how much water area is affected?
(ii) If yes
number of square feet affected. ,
^CW ^SAV ^SB
^WL ®None
(ii) Describe the purpose of disposal in these areas:
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1 f
Form DCM MP-2 (Excavation and Fill, Page 2 of 3)
a. Type of shoreline stabilization: b. Length:
^Bulkhead ^Riprap ^Breakwater/Sill ^Other: Width:
c. Average distance waterward of NHW or NWL: d. Maximum distance waterward of NHW or NWL:
e. Type of stabilization material: f. (i) Has there been shoreline erosion during preceding 12
months?
^Yes ^No ^NA
(ii) If yes, state amount of erosion and source of erosion amount
information.
g. Number of square feet of fill to be placed below water level. h. Type of fill material.
Bulkhead backfill Riprap
Breakwater/S i II Other
i. Source of fill material.
4. OTHER FILL ACTIVITIES ®This section not applicable
(Excluding Shoreline Stabilization)
a. (i) Will fill material be brought to the site? ^Yes L]No ^NA b. (i) Will fill material be placed in coastal wetlands/marsh (CW),
If yes, submerged aquatic vegetation (SAV), shell bottom (SB), or
(ii) Amount of material to be placed in the water other wetlands (V1/L)? If any boxes are checked, provide the
number of square feet affected.
(iii) Dimensions of fill area ^CW ^SAV ^SB
(iv) Purpose of fill
^WL ^None
(ii) Describe the purpose of the fill in these areas:

5. GENERAL
a. How will excavated or fill material be kept on site and erosion b. What type of construction equipment will be used (e.g., dragline,
controlled? backhoe, or hydraulic dredge)?
Silt fencing will be placed around the excavated material. Upon Backhoe, grader, and directional bore machine
completion of the directional drilling, the excavated material will
be used to fill the excavated pit. Additional excess fill material
will be hauled to upland disposal site.
c. (i) Will navigational aids be required as a result of the project? d. (i) Will wetlands be crossed in transporting equipment to project
®Yes ^No ^NA site? ^Yes ®No ^NA
(ii) If yes, explain what type and how they will be implemented. (ii) If yes, explain steps that will be taken to avoid or minimize
Two pilings will be installed on either side of the diffuser environmental impacts.
locations. Pilings will be marked with navigational aids in
accordance with US Coast Guard requirements

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Date
Mainland Water Treatment Plant
Project Name
David S: Briley
Applic
Ap cant'Signature
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Form DCM MP-4
STRUCTURES
(Construction within Public Trust Areas)
Attach this form to Joint Application for CAMA Major Permit, Form DCM MP-1. Be sure to complete all other sections of the Joint
Application that relate to this proposed project. Please include all supplemental information.
1. DOCKING FACILITY/MARINA CHARACTERISTICS
a. (i) Is the docking facility/marina:
^Commercial ^PubliGGovernment ^Private/Community
®This section not applicable
b. (i) Will the facility be open to the general public?
^Yes ^No
c. (i) Dock(s) and/or pier(s)
(ii) Number
(iii) Length
(iv) Width
(v) Floating ^Yes ^No
e. (i) Are Platforms included? ^Yes ^No
If yes:
(ii) Number
(iii) Length
(iv) Width
(v) Floating ^Yes ^No
Note: Roofed areas are calculated from dripline dimensions.
g. (i) Number of slips proposed
(ii) Number of slips existing
i. Check the proposed type of siting:
^ Land cut and access channel
^Open water; dredging for basin and/or channel
^Open water; no dredging required
^Other; please describe:
k~ Typical boat length:
m. (i) Will the facility have tie pilings?
^Yes ^No
(ii) If yes number of tie pilings?
d. (i) Are Finger Piers included? ^Yes ^No
If yes:
(ii) Number
(iii) Length
(iv) Width
(v) Floating ^Yes ^No
f. (i) Are Boatlifts included? ^Yes ^No
If yes:
(ii) Number
(iii) Length
(iv) Width
h. Check all the types of services to be provided.
^ Full service, including travel lift and/or rail, repair or
maintenance service
^ Dockage, fuel, and marine supplies
^ Dockage ("wet slips") only, number of slips:
^ Dry storage; number of boats:
^ Boat ramp(s); number of boat ramps:
^ Other, please describe:
j. Describe the typical boats to be served (e.g., open runabout,
charter boats, sail boats, mixed types).
I. (i) Will the facility be open to the general public?
^Yes ^No
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x ~
Form DCM MP-4 (Structures, Page 2 of 4)
2. DOCKING FACILITY/MARINA OPERATIONS ®This section nat applicable
a. Check each of the following sanitary facilities that will be included in the proposed project.
^ Office Toilets
^ Toilets for patrons; Number: ;Location:
^ Showers
^ Boatholding tank pumpout; Give type and location:
b. Describe treatment type and disposal location for all sanitary wastewater.
c. Describe the disposal of solid waste, fish offal and trash.
d. How will overboard discharge of sewage from boats be controlled?
e. (i) Give the location and number of "No Sewage Discharge" signs proposed.
(ii) Give the location and number of "Pumpout Available" signs proposed.
f. Describe the special design, if applicable, for containing industrial type pollutants, such as paint, sandblasting waste and petroleum products.
g. Where will residue from vessel maintenance be disposed of?
h• Give the number of channel markers and "No Wake" signs proposed.
i. Give the location of fuel-handling facilities, and describe the safety measures planned to protect area water quality.
j. What will be the marina policy on overnight and live-aboard dockage?
k. Describe design measures that promote boat basin flushing?
I. If this project is an expansion of an existing marina, what types of services are currently provided?
m. Is the marina/docking facility proposed within a primary or secondary nursery area?
^Yes ^No
252-808-2808 :: 1-888-4RCOAST :: www.nccoastalmanagement.net revised: 12/27/06

•,
Form DCM MP-4 (Structures, Page 3 of 4)
n. Is the marina/docking facility proposed within or adjacent to any shellfish harvesting area?
^Yes ^No
o. Is the marina/docking facility proposed within or adjacent to coastal wetlands/marsh (CW), submerged aquatic vegetation (SAV), shell bottom
(SB), or other wetlands (WL)? If any boxes are checked, provide the number of square feet affected.
^CW ^SAV ^SB
^WL ^None
p. Is the proposed marina/docking facility located within or within close proximity to any shellfish leases? ^Yes ^No
If yes, give the name and address of the leaseholder(s), and give the proximity to the tease.
3. BOATHOUSE (including covered lifts) ®This section not applicable
a. (i) Is the boathouse structure(s):
^Commercial ^PubliGGovernment ^Private/Community
(ii) Number
(iii) Length
(iv) Width
Note: Roofed areas are calculated from dripline dimensions.
4. GROIN (e.g., wood, sheetpile, etc. If a rock groin, use MP-2, Excavation. and Fill.) ^This section not applicable
a. (i) Number
(ii) Length
(iii) Width
5. BREAKWATER (e.g., wood, sheetpile, etc.) ®This section not applicable
a• Length b. Average distance from NHW, NWL, or wetlands
c. Maximum distance beyond NHW, NWL or wetlands
6. MOORING PILINGS and BUOYS ®This section not applicable
a. Is the structure(s):
^Commercial ^PublictGovernment ^Private/Community
c. Distance to be placed beyond shoreline
Note: This should 6e measured from marsh edge, if present.
e. Arc of the swing
7. GENERAL
b. Number
d. Description of buoy (color, inscription, size, anchor, etc.)
252-808-2808::1-888-4RCOAST: wwwnccoastalmanagement_net revised:12f27/06

Form DCM MP-4 (Structures, Page 4 of 4)
a. Proximity of structure(s) to adjacent riparian property lines
The pipeline in the NC DOT right of way will be located a
minimum of 12 feet south of the adjoining property to the
north and approximately 45 feet north of adjacent property
lines to the south.
b. Proximity of structure(s) to adjacent docking facilities.
The pipeline will be located approximately 100 feet north of
a docking facility.
Note: For buoy or mooring piling, use arc of swing including length
of vessel.
c. Width of water body
~2.7 miles
d. Water depth at waterward end of structure at NLW or NWL
7 feet below NWL
e. (i) Will navigational aids be required as a result of the project?
®Yes ^No ^NA
(ii) If yes, explain what type and how they will be implemented.
Two pilings will be used to mark the location of the outfall
diffuser. Aids to navigation approved by U.S. Coast Guard
will be provided.
8. OTHER ^This section not applicable
a. Give complete description:
An underground pipeline will be directionally drilled from an existing NCDOT right-of-way and will discharge a brine concentrate
stream via a diffuser approximately 1,800 feet from the shoreline into the Albemarle Sound. The pipe will be 12 inches in
diameter.
to ~t7~D7
Date
Project Name
252-808-2808 :: 1-888-4RCOAST :: www.nccoastalmanagementnet revised: 12127/06

`•
Project Narrative - CAMA Major Permit
Mainland Water Treatment Plant
Currituck County
Currituck County proposes to expand the Mainland Water Treatment Plant (WTP). The
proposed WTP will be comprised of the existing 1.4 mgd conventional WTP and a new
5.0 mgd reverse osmosis (RO) system, ultimately bringing the potable water capacity to
6.4 mgd. The existing WTP uses aeration and greensand filtration to treat groundwater
drawn from the surficial aquifers and Middle Yorktown aquifer. The expansion will be
comprised of an RO system, which will treat groundwater drawn from the Middle
Yorktown Aquifer.
Construction includes an underground offshore effluent pipeline to discharge the RO
concentrate stream. The discharge from the proposed RO plant will be subject to an
NPDES permit which protects water quality and will not contribute to the eutrophication
of receiving waters. The pipeline will be directional drilled a minimum of 5 feet below
the North River bottom. The buried concentrate pipe will discharge via a diffuser
approximately 1,800 feet into the North River at the Albemarle Sound confluence.
Directional drilling involves pushing a guided drilling head down at an angle of
approximately 8 degrees. When the drilling head reaches the desired depth, it is guided
horizontally to the diffuser location, and then up to the river bottom approximately 1,800
feet offshore. As the drilling head moves forward, the drilled hole is held open by
injecting a bentonite slurry behind the drilling head, which flows back to the borehole
carrying cuttings. The slurry will be collected in a temporary pit and disposed of off-site.
When the drilling head exits the river floor, the injection pipe and diffuser assembly are
attached to the end of the drill shaft and pulled back into the horizontally drilled hole.
This installation technique will minimize impacts.
The proposed temporary pit will be 20 feet by 20 feet by five feet deep with a perimeter
3-foot berm and liner to contain the drilling mud/bentonite slurry. The line will be
removed and the pit will be returned to the original contour using a bulldozer.

7
l

LAPS -Track & Confirm
Page 1 of 1
ur~r~-~r~s~~r~s
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Label/Receipt Number: 7004 0750 0000 5086 0923 -
Status: Delivered T~~i~ ~ C0
Enter Label/Receipt Number.
Your item was delivered at 9:50 AM on August 11, 2007 in POWELLS
POINT, NC 27966.
~~
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POSTAL INSPECTORS site map contact us government services jobs National 8c Premier Accounts
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http://trkcnfrml .smi.usps.com/PTSInternetWeb/InterLabelInquiry.do 9/25/2007

~'i~i~~!
Infrastructure, envrronment, facilities
Mary R. Kirkland
P.O. Box 307
Powells Point, NC 27966
Subject:
Construction of Outfall Pipeline to Albemarle Sound
Mainland Water Treatment Plant
Dear Ms. Kirkland:
This letter is with reference to the enclosed CAMA Major Permit Application for
Currituck County who plans to make use of a Department of Transportation
(DOT) right-of-way adjacent to your property in Jarvisburg, Currituck County,
North Carolina adjacent to Albemarle Sound.
Currituck County is proposing to upgrade the Mainland Water Treatment Plant,
using reverse osmosis (RO) technology. The primary purpose of this project is to
provide a safe and reliable long term potable water supply for County residents.
Construction includes a membrane concentrate pipeline that will run along the NC
DOT right-of-way along NC 158 and NewBerns Landing Road and extend
approximately 1,800 feet offshore into Albemarle Sound (see attached figure).
The effluent pipeline will go undetected, since it will be buried below the land
surface. It will then be directionally drilled approximately five feet below the
Albemarle Sound floor throughout the entire length offshore. The discharge from
the proposed RO plant will be subject to a NPDES permit that protects water
quality and will not contribute to the eutrophication of receiving waters.
If you have no objection to the County's proposal, please sign and date the
bottom of this letter and return it in the enclosed self-addressed, stamped
envelope. I have also enclosed a copy of this letter for your records.
Imagine the result
ARCADIS G&M of North Carolina,
Inc.
801 Corporate Center Drive
Suite 300
Raleigh
North Carolina 27607
Tel [phone]
Fax [phone]
www.arcadis-us.com
Water Resources
Date:
26 July 2007
Contact:
David Briley
Phone:
142
Email:
david. [e-mail]
Our ref:
NC706021.0000

ARCADIS
If you have any questions, please do not hesitate to call me at 919/854.1282
extension 142.
Sincerely,
ARCADIS G&M of North Carolina, Inc.
David S. Briley, P.E.
Project Manager
SIGNATURE
DATE
Ms. Mary R. Kirkland
23 July 2007
Page:
G:NWJM\70fi021-MairiandNTPWertrits\CAMAIPmperry OwrerNdificatiorvKiAcland.doc 2~2

USYS - Track ~ (:onfirm
~`r~~ ~r~fir
~~~ ~~~~~
!'age 1 of 1
Track & Confirm
Label/Receipt Number: 7004 0750 0000 5086 0794 ,_,. m., .
Status: Delivered Tr;~Ok$t~ctr~"p°ttl ~`.r~
Enter. LabeUReceipt Number.
Your item was delivered at 8:54 AM on August 1, 2007 in COINJOCK,
NC 27923.
l
tacatia~n 0!ptions
Track & Confirm by email
Get current event information or updates for your item sent to you or others by email. r~~
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i 17 Realm Redept Fee
(~' (Endorsement Required)
~ Restricted Delivery Fee
j ~ ~E~Wprsemeot Required
iti
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sent ro
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http://trkcnfrml .smi.usps.com/PTSInternetWeb/InterLabelInquiry.do 8/9/2007
1''1,1~T3 ~T/~7'ES;
~- ~~~~ Home ~ Hela

~~ AR~ADIS
Infrastructure, environment, facilities
Walton H. Carter
P.O. Box 32
Coinjock, NC 27923
Subject:
Construction of Outfall Pipeline to Albemarle Sound
Mainland Water Treatment Plant
Dear Mr. Carter:
t
u ~ ;.
of berth Carotina,~jnc
This letter is with reference to the enclosed CAMA Major Permit Application for
Currituck County who plans to make use of a Department of Transportation
(DOT) right-of-way adjacent to your property in Jarvisburg, Currituck County,
North Carolina adjacent to Albemarle Sound.
Currituck County is proposing to upgrade the Mainland Water Treatment Plant,
using reverse osmosis (RO) technology. The primary purpose of this project is to
provide a safe and reliable long term potable water supply for County residents.
Construction includes a membrane concentrate pipeline that will run along the NC
DOT right-of-way along NC 158 and NewBerns Landing Road and extend
approximately 1,800 feet offshore into Albemarle Sound (see attached figure).
The effluent pipeline will go undetected, since it will be buried below the land
surface. It will then be directionally drilled approximately five feet below the
Albemarle Sound floor throughout the entire length offshore. The discharge from
the proposed RO plant will be subject to a NPDES permit that protects water
quality and will not contribute to the eutrophication of receiving waters.
If you have no objection to the County's proposal, please sign and date the
bottom of this letter and return it in the enclosed self-addressed, stamped
envelope. I have also enclosed a copy of this fetter for your records.
Imagine the result
ARCADIS G&M of North Carolina,
Inc.
801 Corporate Center Drive
Suite 300
Raleigh
North Carolina 27607
Te1919.854.1282
Fax [phone]
www.arcadis-us.com
Water Resources
Date:
26 July 2007
Contact:
David Briley
Phone:
142
Email:
david.brileyC~? arcadis-us.com
Our ref:
NC706021.0000

ARCADlS Mr. Walton H Carter
23 July 2007
If you have any questions, please do not hesitate to call me at 919.854.1282
extension 142.
Sincerely,
ARCADIS G&M of North Carolina, Inc.
.-..".'.
~` G
David. 5. Brliey, P.E.
Project IVlanager
SIGMA : Ri DATE
Page:
c+ni a~sat~r«:~e~,ce'ar~m~~rt carerax 2/2

`.~ C K
~ ~
1668
Eric Weatherly, P.E.
County Engineer
Currituck County
l53 Courthouse Road
Currituck, NC 27929
P.O. Box 38
Currituck, NC 27929-0038
[phone], ext. 242
Fax [phone]
eweatherly(~ co.currituck.nc. us
I, Eric T. Weatherly, P.E. authorize ARCADIS G&M of North Carolina, Inc. to
pursue environmental permits on Currituck County's behalf for the Mainland
Water Treatment Plant expansion property located in Jarvisburg, Currituck
County, North Carolina.
Currituck C®unty
Eric T. Weatherly, P.E.
County Engineer
AUTHORIZATION DATE

` "' 2522323551
09~ 25; 2006 17:4 Fad 252223551 CttRRITUCK COtr?~TF 1f.~N1GER ~ F'.~1T )!~`DIIttF..l_L C~j(101
(/J ~ ~~
Y
_-- ~'~ ~ArFR ~ Michael F. Easley, Governor
4G 111 William t3. RosS .1r., Secretary
~7 p North Carolina Department of Er,vtronment and Natural Resources
~ ~.~'. 1 ~ 'y~; "'f Flan VJ Khmek, P. E. Director
Q ~IWW"~~ ~ Divisron of Water Quality
September 1$, 2006
Leland Gibbs
Currituck County Water Systerrf
446 Maple Road
Maple, North Carolina 27956
RL•; Environmental Assessment (EA) for a reverse osmosis water treatment plant for the
Currituck County Water System.
DENR#OS-0005, DWQ#134-43
Dear Mr. Gibbs:
On September l2, 2006, the State Clearinghouse deezxied the North Carolina Erfvrronmental Policy
Act review on the above project completPpsee attached leDter from the Cleari ~hc~~lel It is now
acceptable to proceed with your permit a lications throu h the Division of ~~ atr.r Quality for the
proposed project. No further actions on the Environmental Assessment are re.qutre.d.
If there is anything I can assist you with, please do not hesitate to give me a ca;l at x:919) 733-SOR?.
ext. 555.
Sincerely,
Hannah Stallings
SEPA Coordinator
Attachrrrents: {SCH Sign Off Lettez, FONS~)
Cc: Alton Hodge- Surface Water•protection Supervisor, WaRO
Gil Vinzani ~ NPDES East
Bradley Bennet[ -- Stormwater Permitting Unit
td~
GU9tOftt(:r $9NICe
[phone]
1-877-6Q3•ti748
Dlvfsion of Water Quality 1617 Mall Sanrice Center Rzla~~~r, rdC 2769y-1617
httpllwww. enr.state-nc.us

U~!G5%L~Uti 11:45 Y.~li LSLG:fL:3~~1 l.uttttllul.tl t,vu.vli ni~rvYVt•n - rz~ :~,_.•••..~-a-~-
1 1 ~~
~~ r-• o~
4
w..
Naz-th Carolina
Deparlx~n.ent of Adminis~t~ration
Michael F. Easley, Governor
September 12, 2006
Ms. Hannah Stallings
NCDENR, Division of Water Quality
.Axchdale Building
1617 Mail Service Center
Raleigh, NC 27699-1617
Dear Ms. Stallings:
Britt Cobb, Secretary
Re: SCH File ~ 07-E-4300-0025; E.~'1/FONSI; Currituck County Reverse Osmosis ~~'ater Treatment
Plant
The above referenced environmental impact information has been reviewed through the State
Clearinghouse under the provisions of the North Carolina Environmental Policy 1ct.
_ ~o comments were made by any state/local agerxcies in the course of this review. Therefore, no further
environmental review action on your part is required for the compliance with the t~.ct
Best regards.
Sincerely,
Ms- Chrys Baggett
Environmental Policy A.ct Coordinator
cc: Region R
MrtilrrrgArJdress: Telephone: (919)B0~-?42s L••c•a!Irn Addrtss:
[3U1 Mail Service Conte, Fax [phone] I ~5 ~'%cst Jana Strcct
Raleigh, NC 27699.1301 .S(IILC Co~rycr3J~i-01-00 R,;;ei~h, Noreh Csrphna
e-moll Chrys.$aggert©ncmatl.net
An Fgvol ppportuntry/A~rmat/ve Actron Employer

UL"iL.7%'GV'411f 1l:4~3 Y:+i:IL7LLJG35J1 (;U1{!tl'1'li(;lC t_:t)lFR'11 11:1.N:~V1;K -' Y:~l )llll~~«tLL rE/Jirtr•S
n~ W A
Q~
~~ ~
`'
Michael F. Easley, Governor
William G. Ross Jr., Sccrasry
North Carolina Department of C-•vuonn,ent and 1 i3tUr3) Resc+Urtes
Alan W. Klimek, P, F. Director
Division of Water Quality
19 .luly 2006
To: Chrys Baggett, State Clearinghouse
From: Darlene Kucken, Division of Water Quality ~,~"~'""'~
Subject: EAlFONSZ: Currituck County, Reverse Osmosis Water Treatment Plant, Production
VYell, Force Main And Discharge
The Division of Water Quality is subnutting for State Clearinghouse review (he enclosed six
copies oif the Environmental Assessment and Findizzg of No Significant Impact for the subject
project.
The Department of Environment and Natural Resources has reviewed the EA. Please publish
this project in the Environmental Bulletin and circulate the environmental documents as
appropriate.
Contact me at 919.733.5083 ext. 354 if you have any questions.
Thank You
~~.
n~cu~ral~
N. C. Aivision of Water Quality 1617 Mail Sctvicc Center Raleigh, Nonh Carolina 27699-1617 (9191733-70i ~ Customer service
l•377-623-6745

Ota'i25'2(~~6 17:43 r:~Y `l52L:3Z:t551 t;Uxiti't'U(;11 (;UU~1Y n13n~c;t;x ~ rsi ~llll~.!"GLL ~v~~-t
FOR LEAD STATE ,A,CENCY USE ONLY
~,`OIICIUSI.Oll StafeITleilt (Must be completed and signed by responsible state.agenc~: ar,~+s•ubmirted with
the EA document to the State Clearinghouse.)
Select the appropriate stateQtent below:
After preparatiorJrcview of this F_..d., the responsible state agency has concluded there is a f=inding of"No
Sign cant Impact (FONSI) attd will not be prcpering an Enviroxmenta! Impact Statement (EI5}. (ACtzch any,.
additional information regarding this conclusion chat you dcem important to this finding.)
'The agency has completed this EA and is hertby submitting it for review and eotrurcnt. Aftcr e
consideration of the comments rcccivcd, the agency will protted with. a FONSI or prepare an EIS.
Signed Y ~1v1``- D.~/.Ia.. o~ (l~tv (~tJ<<t4 eney

~~~ WA7`F~4
4 ®a®~ G
August 15, 2007.
Mr. Daniel F. Scanlon, County Manager
Currituck County
446 Maple Road
Maple, North Carolina 27956
Dear Mr. Scanlon:
Subject: NPDES Draft Permit
Permit No. N00088650
Mainland WTP
Currituck County
Please find enclosed the DRAFT permit for the subject wastewater treatment plant for your
review and comment. The draft permit follows the permitting guidance for membrane treatment
systems and requirements for SC waters.
Please provide any comments yon have regarding the draft permit to this office no latter
than 30 days after receiving this document. At this time, the Division is also publishing a
notice in the newspapers of general circulation in Currituck County, inviting public comment
on the draft permit. Following the 30-day comment period, we will review all pertinent
comments received and take appropriate action on the permit renewal.
If you have any questions concerning the draft permit or the other requirements for your
facility, please call me at [phone], extension 553.
Sincerely,
% ~~
/L~
Teresa Rodriguez
NPDES Unit
Cc: NPDES Files
Washington Regional Office -Surface Water Protection
Aquatic Toxicology Unit
Division of Marine Fisheries
US Fish and Wildlife Service
Wildlife Resources Commission
EPA Region 4
David S. Briley, P.E. - Arcades G & M of North Carolina, Inc.
801 Corporate Center Drive
Suite 300
Raleigh, NC 27607
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer Visit us on the INTERNET ~ www.enr.state.nc.us
Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DNISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
Tn compliance with the provisions of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Water Quality
Commission, and the Federal Water Pollution Control Act, as amended,
Currituck County
Mainland Water Treatment Plant Discharge
is hereby authorized to discharge wastewater from a facility located at
446 Maple Drive
Maple
Currituck County
to receiving waters designated as the North River in the Pasquotank River Basin
in accordance with the discharge limitations, monitoring requirements, and other conditions set
forth in Parts I, II, III, and N hereof.
This permit shall become effective .
This permit and the authorization to discharge shall expire at midnight on November 1, 2012.
Signed this day .
DRfl~ T
Coleen H. Sullins, Director
Division of Water Quality
By the Authority of the Environmental Management Commission

SUPPLEMENT TO PERMIT COVER SHEET
Curri.tuck County
is hereby authorized to:
1. After receiving an Authorization to Construct permit from the Division of Water quality,
construct and operate a wastewater treatment system discharging up to 1.67 MGD of
reject water from a reverse osmosis water treatment plant and greensand filter
backwash located at 446 Maple Road, Maple, Currituck County, and
2. Discharge said wastewater from an effluent diffuser at the location specified on the
attached map into .the North River, which is classified SC waters in the Pasquotank
River Basin.

A (1), EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge from outfall(s) serial number 001- Reverse Osmosis Reject
Water and filter backwash. ,Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT
DISCHARGE LIMITATIONS
1Vloniform 'Re iiiremenits`
CHARACTERISTICS
Monthly Average
.Daily. Maximum Measurement
Frequency
`Sample Type Sample _
Locationl`
Flow 1.67 MGD Continuous Recordin E
Tem erature Monthly Grab E, D t, D1, D2
Dissolved O en Monthl Grab E, D t, D1, D2
Salmi Monthly Grab E, D t, D 1, D2
Conductive Monthly Grab E, D t, D 1, D2
Hz Monthl Grab E, D t, D I , D2
Total Dissolved Solids Monthl Grab E
Total Residual Chlorine 13 µ /1 Monthl Grab E
NHs-N Monthl Grab E
Total Arsenic Monthl Grab E
Total Co er Monthl Grab E
Total Iron Monthl Grab E
Total Zinc Monthl Grab E
Total anide Monthl Grab E
Man anese Monthl Grab E
Chloride Monthl Grab E
Total Fluoride Monthl Grab E
Whole Effluent Toxicity3 Quarterl Grab E
NOTES:
1. Sample Locations: E -Effluent, Dpt - at location of the discharge diffuser, D 1 - at least 85 feet to the
southwest of the discharge and D2 - at least 85 feet to the northeast of the discharge.
2. The pH shall not be Less than 6.8 standard units or greater than 8.5 standard units.
3. Chronic Toxicity Monitoring, Quarterly; January, April, July, and October. See Special Condition A
(2). Quarterly toxicant monitoring should correspond with quarterly toxicity testing.
Upon sampling for 12 months, the permittee may request a review of reasonable potential for monitoring and effluent
limitations.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR V3SIBLE FOAM IN OTHER THAN TRACE
AMOUNTS.

i
A (2). CHRONIC TOXICITY MONITORING (QRTRLY)
The permittee shall conduct quarterly chronic toxicity tests using test procedures outlined in the
"North Carolina Mysid Shrimp Chronic Effluent Bioassay Procedure," Revised February 1998, or
subsequent versions.
The effluent concentration defined as treatment two in the procedure document is 7.5 %. The
permit holder shall perform auarteriu monitoring using this procedure to establish compliance
with the permit condition. The tests will be performed during the months of January, April, July
and October. Effluent sampling for this testing shall be performed at the NPDES permitted final
effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent
Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter
code TGP3B. Additionally, DWQ Form AT-1 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh, N.C. 27699-1622
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no
later than 30 days after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical
measurements performed in association with the toxicity tests, as well as all dose/response data.
Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is
employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring
is required, the permittee will complete the information located at the top of the aquatic toxicity
(AT) test form indicating the facility name, permit number, pipe number, county, and the
month/year of the report with the notation of "No Flow" in the comment area of the form. The
report shall be submitted to the Environmental Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then
monthly monitoring will begin immediately. Upon submission of a valid test, this monthly test
requirement will revert to quarterly in the months specified above.
Should any test data from this monitoring requirement or tests performed by the North Carolina
Division of Water Quality indicate potential impacts to the receiving stream, this permit may be
re-opened and modified to include alternate monitoring requirements or linuts.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum
control organism survival, minimum control organism reproduction, and appropriate
environmental controls, shall constitute an invalid test and will require immediate follow-up
testing to be completed no later than the Iast day of the month following the month of the initial
monitoring.
A (3). DISCHARGE SPECIAL CONDITION
The effluent diffuser must be designed to prevent surface turbulence and bottom scour. Should
the location of the discharge cause visible turbulence within the Albemarle Sound, the Division
may require that the discharge be relocated. The diffuser must be submerged during low tide
conditions.

v M
Cun~ituclc County Mainland WTP
USGS Ouad: Camden Point Latitude: 3G° 9.5 t5' N
Longitude: 75° 52.11' W
Recciti9ne Stream: North River Drainage Basin: Pasquotank River
Strcatn Class: SC Sub-Basin: 03-01-54
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I~'acility Location
not to scale ~~_`
NPDES Permit No. NC0088650
North county

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. N00088650
Facilit Information
A licant/Facitity Name: Currituck Mainland WTP
A Iicant Address: 446 Ma le Road, Ma le, NC 27956
Facilit Address; '.. 446 Ma le Road, Ma le, NC 27956
Permitted Flow.. 1.67 MGD
T e of Wasfe:::.: ::::::.::.:.::. WTP concentrate, reensand filter backwash
Facilit /Permit Status:::.. New
.County: Currituck
,..
: ....:. ... ..:..:;.:.:.;.:.......::. ,:.:. Miscell
aneous _ ..:
Receivin StreArri::',:;;::':;;:;.;:. North River '.Re iorial:.Office: ..: WRO
Stream Classificafion: >~:::.. SC ' USGS:. Qiiad::.:...: .. Camden Point
303(d) Listed?:.::::.::.:''; ::. No Permit;Writei; .: Teresa Rodri uez
Basin/Subbasiri'<'': ';:'::.'`;', Pas uotank 03-01-54 Date:::;. `:`:~::;: 7/19/2007
Stream index:..:.:..:.:. ;.`::' : 30-2
~
Drama e Area (rni .)::`.::.:.. Tidal ~
'`- ° )

Avera e Flow (cfs):, :.:
°
'
°
'
IWC (%):. 7.5 % Lat. 36
9.51
N Long. 75
W
52.11
Summary
Currituck County is proposing to expand the mainland WTP to provide 3.0 MGD potable water
immediately and 5.0 MGD ultimate capacity. The county will continue to operate the greensand filters
and install a new reverse osmosis system, then combine the discharge of the two systems under one
permit. The greensand filters are permitted under permit N00072150. Once the construction of the new
RO system is completed the County will request to rescind permit N00072150.
The source of groundwater is the Middle Yorkton aquifer. The treatment system for the water consists of
scale inhibitor, pH adjustment and a reverse osmosis system. Approximately 21 miles of forcemain will
transport the effluent to the discharge location at the Albemarle Sound were it will be discharged through
a diffuser.
A CORMIX model evaluation was included with the permit application. The CORM]X aaalysis resulted
in a dilution of 13.3:1 at a distance of 82 feet from the diffuser. The proposed diffuser is 40 foot long
with twelve 2" nozzles and will be located 1800 feet from shore.
EAA/SEPA
A Finding of No Significant Impact was issued for this project on July 19, 2007. The County submitted
an Engineering Alternative Analysis for the proposed effluent discharge. They evaluated building a new
WTP at a new site with a discharge to the Albemarle Sound, and regionalization. RO concentrate is not
suitable for land application. The most economically feasible alternative is the new plant discharging to
the North River.
Basin Plan
The North River is not rated in the Pasquotank basin plan.
303 d list
The North River is not listed as impaired in North Carolina 303(d) list.
tact Shcct
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PERMITTING STRATEGY
Permit limits were developed according to the Division's Water Treatment Plant permitting strategy for
membrane and greensand treatment systems and requirements for SC waters.
The permit includes a monthly average flow limit of 1.67 MGD, a daily maximum limit of I3 µg/1 for
total residual chlorine based on EPA criteria, and monitoring for the parameters of concern identified in
the permitting guidance. Instream monitoring is included for temperature, dissolved oxygen, salinity, and
conductivity. Instream monitoring is proposed at three locations: Dpt is the location of the discharge
diffuser, D1 - at least 85 feet to the southwest of the discharge and D2 - at least 85 feet to the northeast
of the discharge.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice: August I5, 2007
Pernut Scheduled to Issue: October 8, 2007
NPDES DIVISION CONTACT
If you .have questions regarding any of the above information or on the attached permit, please contact
Teresa Rodriguez at (9I9) 733-5083 ext. 553.
NAME: -DATE: d .3 C7~
REGIONAL OFFICE COMMENTS
NAME• DATE:
SUPERVISOR: DATE:
Fact Shezt
'~P[)ES ~Ct1C-BSG~i)
Palo

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~ CFMEA OF dFFUSER I ~_~-tJ~ 1 ~
~ ~ UT = 36 09' A.91' N I I OP-_.____.C 1 '~,~~111~~{ 1~ OTg
~ \ = 75 32' 07.62. W I ZROp,. I, ~ 1 tFln*'.'`~~' .-'~
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RWAl9UN PROPERTY DN6 ~~
(PERPENMCVUA TO ~_.\ _ _ _
CENfEfiUNE OF NORTH AVER) -.- _ _ - - -,- - - - - -- -' - - - - -
(2) 12' iIMBEA PIONGB; -
DEPDI i0 BE DETERNINED
4,0
2.0 '.
Da
-2 0
-4 0
-60;
-eol - -
r 40' D15GHARGE HEADER WI1H 12 NOZZLES, DEPICTION OF NORTH PoMER BDIIOM ENSEO ON SUMEY
HfADER ANCHORED TO SOUND BOT10M DATA YATHIN 2oa' OF PIPE LOCATION.
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-120
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-16.0'.
-16 D
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-20.0 ..__.. .... _ .._
23+00 Z2+00 2N00 20+00 19+00 19+00

NOTE. ORIGINPL DRAWINGS ARE 34"r22'".
1HIS DOCUMENT IS HALF SIZE.
IpRIZ010AL1Y OIAECilON4L1Y DRILLED 12" HDPE PRE,
~PPPROKIIIATLlY 5' BELDW SOUND BOIIOM
17+00 16+00 ~ 15+00 14+OD 13+00 12+OD 11+00 10+DO 9+00 8+00 7+00 fi+00 5+00 4+00 ~3+00
MIN BEND RADIUS = J00'-0'
BORE HOLE
~ ~6DEC ANGLE
o FROM HOARIZOM1IAL
~-
P+00 1+00
4.0
2.0
o.o
zD
-4.0
-6.0
-B.0
_ -1a.o
-120
I -la.o
-760
-iB.D
_.. '-20.0
0+00
MIN BEND RADIUS = 30D'-0'
g~~C~li/ED
NC DENR
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fliZC~bat~ Cify
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ISSUED FOR BIDS
v - _ PROJECT WWAGEA DEPNiIl.IENT MHVAGER LFAD DESIGN PROF. CHECKED BI
- ? 0 5 NW D7 ISSUED FDR BIDS KE~UN ~ ~~~~~"'bn
s o t0' m' 30' .°°~SN, , 0 ''o AR A ~ ~ ~IAINWJD WATERR TREATMpEpNT PLANT D. BRILEY R. wtCHE R. RHODES D. BRIIFf
3 ~ C 9 OCT 07 55UED FOR RENEW 1 •~ A~/ 1~~~ ~ ~i };~I RE~RJE OSMOJIJ SHEEP 11IlE TASK~PNSSE NUMBER DPAWN B(
EXPANSION REVERSE OSMOSIS CONCENTRATE ~~ D. wluwBs
o ~ B i7 SEP 01 95x DE61CN DRAW1NG5 - 0
~~~ DISCHARGE DIFFUSER PA0.IECT "DMBER DRAWING "DMBER
~ ~d 0 100' 200' J00~ •T. r~"~ ARCNNS G3L1 d Nad Corolim, Ix.
s A Z JUL 07 6D>< DESIGN DRAWINGS ~ ~ "%,~ pgyJD IwEE?:.~,~c`p~ ROkgCorporot~~nter dive, SuDe 700 u~~ CURRITUCK COUNTY, PLAN AND PROFILE NC706021.2000 W501
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uo REV. ISSUED 0.41E DESCRIPUON '"'~~~~~~~„~~, r~ 9 u IZB2 Far: 919-BS,-s„e ~ , , , NORTH CAROl1NA
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RIPAAiAN PgOPERtt RIGHTS-~ 12' TIMBER PIING W7B1
(SEE W501) ~~ CHANNEL N42NER f5 SPECIFlm
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ENLARGED PLAN -DISCHARGE DIFFUSER BORING
WSD2 scuE t = 2o'-D°
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SECTION -DISCHARGE DIFFUSER
W502 scaE 1° = 1-D
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NDRL41 WATER LEVEL
IC
TON
4' 71DEFLIX~
CHECK VALYE 4' HDPE %PE DEFUSER 4' HDPE BLIND 12' HDPE TEE
ND22lE (ttP) fLWGE (tt1') (BUR WELDm) 12' HDPE %PE
12' HDPE CAP (T1P)
(BUR WELDm) ~
6'-O' B'-0' 8'-O' 8'-O' B'-O' B'-O' 6'-D'
52'-0'
SECTION -DISCHARGE DIFFUSER ~ 7 _ 1 $ $ ~
ISSUED FOR BIDS
NOTE: ORICNIL BRAWIXGS NAE J4'«22'. W502 scuE: Ir °a
THS IXICIIIFHf a Hur slzc ~ u , Jr r
= D' I~ 2' 3' D 5 NW 07 ISSIkD fDA BI05 KEIPIAN SFAL v °"1011 ",,, „~,.-.. PRQIECi MANAGER DEPARTNEM NWVAGER LFAD DESIGN PROF. CHECKED Bt'
jH,CCr+RO --. ~ ARCADIS ~ 'i; MAINLAND WATER TREATMENT PLANT o. RRi~r R. rncNE H. cnRSON o. RRiter
c~ SCALE Ri FEEf C 9 DCf 07 6Um EDR REVIEW ',``~•, REVERSE OSMOSIS SHEET 1ffLE TASK/PW15E NUHBEA auwN er
~ 0 iD' 20' °o' ~ 00001 C. NIABRELL
B n sEr oT ssx oESfcN auvnNa DCW - 2_p3p s EXPANSION REVERSE OSMOSIS CONCENTRATE
1 ~ SCALE M FEET D56 - ~'. ~~ `~~ ARCADE C!N of NuN Cmolina, Inc DISCHARGE DIFFUSER PROTECT NUMBER DRAWING NUMBER
i~ 0 30' ~' 90' A 2 JDL 07 60x DESIGN DRAWINGS ~ ~ '~,ogy+~'„G,~(~lp~'; ~yn~DNC~n6~ai n °~, Suite °°° CURRffUCK COUNTY, ENLARGED PLAN WSOZ
'--,,,,ms.~,,, ~u1"1"GtuGk NC706021.2000
ou SCALE IN FEET REV. ISSUED DATE DESCRIPfgN m Td. D1B-854-1282 Fav. Big-854-5448 ° " ' _ . NORTH CAROLINA AND SECTIONS
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