19920009 Ver 1_COMPLETE FILE_19920101

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State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Coastal Management
225 North McDowell Street 0 Raleigh, North Carolina 27602
James G. Martin, Governor
William W. Cobey, Jr., Secretary
Roger N. Schecter
Director
11 .i
MMORANDUM
Pq nY - R 1992
Dennis Stewart, WRC
Rich Carpenter, DMF.
John Dorney, DEM, Water Quality Section N`4 TIP`S.
Perry Nelson, DEM, Groundwater Section
Cliff Winefordner, USA COE
FROM: Stephanie Briggs, Asst. Major Permits Coordinatorl?crz
SUBJECT: Modification to A CAMA/Dredge and Fill Application
DATE: May 6, 1992
APPLICANT: Town of Yaupon Beach
PROPOSED LOCATION: SR1101, Fish Factory Road, Brunswick County
PROPOSED PROJECT: A 400,000 GPD municipal sewer system for the Town
of Yaupon Beach, including gravity collection system,
forcemain to SR1101 to treatment plant site, and
infiltration basin.
Attached for your review is a second revision of the Town of Yaupon
Beach's work plan drawing for the above referenced application. A revised
field report will be circulated to each of you later this week. If this
modification serves to change your agency's position on this project, or if
you continue to have concerns about such, please submit your additional
comments to this office within 5 days of receipt of this information. Thank
you for your continued attention to this matter.
SSB/aw
cc: Ed Brooks
Jim Herstine
Dave Atkins
P.O. Box 27687, Paleigh, North Carolina 27611-7687 Telephone [phone]
An Fnoal Onnnrtunity Affirmative Action Fmnlover
i
d ?' SV1TF' o
1/.Sfy?y N.v O.1sn
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MI.n
State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Coastal Management
225 North McDowell Street • Raleigh, Nor lira 27602
James G. Martin, Governor
William W. Cobey, Jr., Secretary
MEMORANDUM
MAR 1992
?VEtL`•',?r' ' ? " i
?nin1FR nunl +
TO: Ms. Linda Sewall, DEH
Mr. Dennis Stewart, WRC
Mr. Rich Carpenter, DMF
Mr. John Dorney, DEM, Water Quality Section
FROM: Stephanie Briggs, Asst. Major Permits Coordinator
SUBJECT: Modification to A CAMA/Dredge and Fill Application
DATE: March 25, 1992
APPLICANT: Town of Yaupon Beach
PROPOSED LOCATION: SR1101, Fish Factory Road, Brunswick County
i
PROPOSED PROJECT: A 400,000 GPD municipal sewer system for the Town of
Yaupon Beach, including gravity collection system,
forcemain to SR1101 to treatment plant site, and
infiltration basin.
Attached for your review is a modification to the above referenced
application. If this modification serves to change your agency's position
submit
this project, or if you continue to have concerns about such, pleas
your additional comments to this office within 10 days of receipt of this
memorandum. Thank you for your attention to this matter.
SSB/aw
cc: Ed Brooks
Jim Iierstine
Dave Atkins
P.O. Box 2
cww??l
-7
(Vi ice"
Vrompt action reques ed.
? Work at your usual speed.
Roger N. Schecter
Director
63149008PP. Inc.

Proposed Design Modification to the Town of Yaupon Beach Application
for State Permit
9.
].0.
Project llescription
The applicants have proposed to modify the design of the perimeter
underdrain tile which surrounds three sides of the infiltration
basin at the proposed Fish Factory Road treatment and disposal
site. The design modification consists of deleting the
subterranean installation of the solid 611 pipe, from the edge of
the highground, through the coastal wetlands to the run of the
creek, and instead terminate the draintile on highground and
construct two open s? a ?s by excavating through the coastal
wetlands to the creek.
The swells are proposed as follows:
Length
Top Width
Botton Width
SWIfC.e
2ffB-LL A
± 50 ft
40 ft tapering
2 ft with 8
elevation +2
4:I
5 W,+6
SWEtt B
+ 95 ft
to 2 ft at creek run
10 inches depth of gravel at
Side Slope
Anticipated Impacts
4:1
or
. Wales
The proposed construction of the swe- s would result in the
excavation of approximately 750 sq. ft. of irregularly and
regularly flooded coastal wetlands. The proposed modification
would change the natural mhw contour in that, high tide will
flood to the landward limits of the i3.. Of course, the entire
perimeter draintile at elevation +2 msl, would still be
tidal and flooded twice daily, which may impact the efficiency of
the draintile function. The possibility for potential negative
impacts to estuarine waters remains the same, only the planner of
conveyance of the discharge has been changed.
t
gyn.
ANIMP,
4
State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27604
James G. Martin, Governor February 17, 1992 George T Everett, Ph.D.
William W. Cobey, Jr., Secretary Director
The Honorable May W. More, Mayor
Town of Yaupon Beach
518 Yaupon Drive
Yaupon Beach, North Carolina 28465
Dear Mayor More:
Subject: Town of Yaupon Beach sewer line
Brunswick County
Project # 92009
Upon review of your request for Water Quality Certification
to place fill material in 0.3 acres of wetlands for sewer line
construction at Yaupon Beach in Brunswick County, we have
determined that the proposed fill can be covered by General Water
Quality Certification No. 2664 issued January 21, 1992. A copy
of the General Certification is attached.
If you have any questions, please contact John Dorney
at 919/733-5083.
Sincerely,
Pe'
>EvGTE : ,7D
Attachment
cc: Wilmington District Corps of Engineers
Wilmington DEM. Regional Office
Mr. John Dorney
Central Files
Division of Coastal Management, Raleigh
G.W. Graham, P.E.
Boney Q Associates
309 N. Boylan Avenue
Raleigh, NC 27603
REGIONAL 01:11C1_1)
Asheville Fayetteville Moorcwillc Raleigh Wlshingt)II Wilmingtni Winston-Salem
704/251-6208 919/48(x1541 704/(163-1699 919/571-47(X) 919/946-6481 919/395 OW `)19/896-7(X)7
Pollution Prevention Pays
N)_ Box 29535 Raleigh, Ntonh Carolina 276200535 Mcph„nt 9197337(115
-Air 1 q,,al ( nt unit, Alhnnnrvc N u.m I ,ipl.ni.i
I
s sfAIE
State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Coastal Management
James G. Martin, Governor
William W. Cobey, Jr., Secretary
Decmber 20, 1991
TO: Dr. George T. Everett, Director
Division of Envirormental Management
FROM: John R. Parker, Jr., Chief
Major Permits Processing Section
SUBJECT: CAMA/Dredge & Fill Application Review
Applicant: Town of Yaupon Beach
aa
YcLr,;nwton F,c?ional Off7c?
Roger N. Schecter
Director
Project Location: Secondary Road 1101, Fish Factory Road, Brunswick County
Proposed Project: a 400,000 GPD municipal sewer system for the Town of Yaupon Beach,
including gravity collection system, forcemain to S.R. 1101 to treatment plant site
and infiltration basin.
Please indicate below your agency's position or viewpoint on the proposed project and
return this form by January 22, 1992. If you have any questions regarding the
proposed project, please contact Ed Brooks at extension 245. When appropriate,
in-depth cwmnents with supporting data are requested.
i
REPLY y This agency has no objection to the project as proposed.
This agency has no ccamnent on the proposed project.
This agency approves of the project, only if the reconm)ended
changes are incorporated. See attached.
This agency objects to the project for reasons described in the
attached comments.
Signed El L22)U Date
127 Cardinal Drive Extension • Wilmington, North Carolina 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

i
State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Coastal Management
James G. Martin, Governor
William W. Cobey, Jr., Secretary
December 20, 1991
TO: Dr. George T. Everett, Director
Division of Environmental Management
FROM: John R. Parker, Jr., Chief
Major Permits Processing Section
SUBJECT: CANA/Dredge & Fill Application Review
Applicant: Taan of Yaupon Beach
Roger N. Schecter
Director
Project Location: Secondary Road 1101, Fish Factory Road, Brunswick County
Proposed Project: a 400,000 GPD municipal sewer system for the Town of Yaupon Beach,
including gravity collection system, foroemain to S.R. 1101 to treatment plant site
and infiltration basin.
Please indicate below your agency's position or viewpoint on the proposed project and
return this form by January 22, 1992. If you have any questions regarding the
proposed project, please contact Ed Brooks at extension 245. When appropriate,
in-depth comments with supporting data are requested.
REPLY
Signed
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.
Date
127 Cardinal Drive Extension • Wilmington, North Carolina 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

V
DIVISION OF MASTAL MANAGEMERr
FIELD INVESTIGATION REPORT
1. Applicant's name Town of Yaupon Beach
2. Location of project site Town limits on Oak Island adjacent Atlantic Ocean and
Elizabeth River, Highwav 133 R.O.W., across AIWW to S.R. 1101, to treatment
plant site adjacent Dutchman Creek, Brunswick County.
11-11 & 111
PMTO Ili: 1989: 186-1, 184-6, 184-7, OR23, 24 1984: 10-100 F&H-1,2; 10-99
STALE PLANE CUC?II?'L'F5: X: Not Available Y: Not Available
3. Investigation type: Dredge & Fill X CAMA X
4. Investigative procedure: (A) Dates of site visit ?11-1-91 12-3-91
(B) Was applicant present des no
5. Processing procedure: Application received CC-12-17-92 Office WiRO
6. Site comer-riTrt i rn: (A) Taal Land Use Plan Yaupon Beach & Brunswick County
Land Classification from IUP Transitional Mixed Use
Development constraints identified in IUP None
both plans support centralized sewer
(B) ABC (s) involved:
(C) Water dependent:
(D) Intended use:
Ocean Hazard _X
Coastal Wetlands X
Estuarine Waters X
Estuarine shoreline X
Public Trust Waters X
other
Yes No X
Public X Private
(E) Type of waste water treatment: Existing Individual septic tank systems
Plarned Municipal dual-path, tertiary treatment facility
(F) Type of strictures: Existing AMroximately 600 of 1,000 lots developed
Planned Collection system pump stations treatment plant, infiltration basin
(G) Estimated am ml rate of erosion NA_ Source
7. Habitat desption:
(A) Vegetated wetlands:
(B) Non-vegetated wtLwds:
- Open Water AIWW X-IM_
AREA
Dredged Filled other
+ 2,900 s.f.
(C) Other: (Collection System)
Highground (treatment plant)
(D) Total Area Distwi)ed:
+'10,000 s.f.
+ 21.6 acres
.5 acre
26.4 acres
8. Project Summary The applicant proposes a 400,000 GPD municipal sewer system for
the Tawas of Yaupon Beach including gravity collection system forcemain to S R
1101 to treatment plant site and infiltration basin.

Town of Yaupon Beach
J Page two
9. PROJECT DESCRIPTION
A municipal wastewater collection, treatment, and disposal system
is proposed for the Town of Yaupon Beach, North Carolina. The
Town of Yaupon Beach is located on Oak Island, an elongated
barrier island, oriented roughly east-west, along the Atlantic
coastline in southeastern Brunswick County. The Town is
bordered on the south by the Atlantic Ocean, on the west by the
Town of Long Beach, on the east by the Town of Caswell Beach, and
on the north by extensive salt marsh and the Atlantic
Intracoastal Waterway. Oak Island is accessed solely by State
highway 133 and the high rise Oak Island Bridge over the AIWW.
Demographics for the Town include an municipal area of one (1)
square mile, and a resident population of 734 with a substantial
population increase (2500 - 3000) during seasonal peaks associated
with the tourism industry. The proposed treatment facility site
is located on the mainland side of the AIWW. The seventeen (17)
acres site is on Fish Factory Road (SR 1101) approximately a mile
northeast of the Oak Island bridge. The site is bordered on the
east by the portion of Dutchman Creek that was created during
the construction of the CP&L Brunswick Nuclear plant discharge
canal, on the north by salt marsh, several hundred feet wide,
oriented along a small tributary of Dutchman Creek, on the south
by a N.C. Wildlife boat ramp facility and on the west by S.R.
1101 (Fish Factory Road). Vegetation on the site is primarily
planted pines. The elevation of the site ranges to 14 feet above
mean sea level with a gradual slope to the north and east
terminating at Dutchman Creek and the adjacent tidal marsh. The
tidal marsh vegetation adjacent to the northside of the site
consists primarily of black needlerush (Juncus roemarianus) with
narrow borders of Spartina alterniflora along the veined pattern
of the drainage system of the marsh. There are also several
stands of sawgrass (Caldium sp.) along the edge of the marsh
perimeter. The run of creek widens, as do the adjacent borders
of cordgrass, until Spartina alterniflora is the predominate
species where this tributary and tidal marsh intersect Dutchman's
Creek.
The waters in the project area are classified as SA by the N.C.
Division of Environmental Management and are closed to the taking
of shellfish. They are not designated as primary nursery areas
by the N.C. Division of Marine Fisheries.
The Town of Yaupon Beach proposes to construct a municipal sewer
collection, treatment and disposal system. The proposed project
is described below in three sections: collection system, effluent
transport to treatment plant, and treatment facility.
Collection system: A gravity collection system is proposed.
Approximately 50,000 l.f. of 8" diameter pipe would be installed
at a depth of 4 to 8 feet within the right-of-ways of the
existing network of Yaupon Beach roads, requiring a 10 to 20 feet
width of disturbance. The system includes 600 service
connections and 11 lift stations.
M
Town of Yaupon Beach
Page three
9. PROJECT DESCRIPTION - Continued:
Effluent transport system - this portion of the system would
consist of approximately 13,500 l.f. of 12" force main, and
includes a subaqueous crossing of the Atlantic Intracoastal
Waterway. The majority of the pipe line involved in crossing
the expanse of cordgrass marsh (approximately 3,000 l.f.) and the
AIWW (approximately 500 l.f.) would be buried in the old roadbed
of what was Highway 133 prior to the construction of the Oak
Island Bridge. The old roadbed is adjacent to the east side of
the bridge and is bordered on either side by extensive salt
marsh, primarily Snartina alterniflora, but includes substantial
stands of uncus roemarianus along the backside of Oak Island.
The AIWW is approximately 450 - 500 feet wide at the crossing
site. The applicants propose to excavate a trench 10 feet wide
and averaging, 7 feet deep in which to lay the forcemain pipe.
The spoils from the excavation would be stockpiled underwater
adjacent to the trench to be used as backfill after the bedding
rock and pipe are installed. There would be a minimum of 5 feet
of cover over the entire pipline. The 12 inch forcemain would
continue subterrianeously in the Highway 133 and S.R. 1101 (Fish
Factory Road) right-of-ways to the treatment plant.
Treatment Plant Site: The treatment facilities would consist of
a dual-path package mechanical treatment plant (.4 mgd including
aeration basins, clarifiers, and filters; the chlorinated
effluent from the filters would be pumped to the high-rate land
disposal area for final disposal. This area would be built up to
elevation 12.0 to insure that mounding under the disposal area
will not break out of the ground surface. A proposed loading
rate of 6.0 gallons per square foot per day would require 66,667
square feet of disposal area (300 feet x 250 feet). The disposal
area would be surrounded by a soil dike to prohibit runoff. The
soil classification in the proposed disposal area includes
Kenansville fine sand, Tomahawk fine sand, and Leon fine sand.
Since Leon fine sands, are severely limited with respect to
wastewater disposal, that portion of the infiltration basin area
classified as Leon fine sand would be excavated and replaced by
coarse grain sand from and upland source. The excavation would
create approximately 3,000 cubic yards of soil which would be
stockpiled on-site and used for dike construction. A washed
stone drain line and stock tile are proposed on three side of the
disposal field to intercept groundwater prior to its-movement to
adjacent property, protecting adjacent groundwater quality. This
interceptor drain line would be located 200 feet from the
disposal area dike on the south, east, and west. It would
discharge in two locations into the small tributary off
Dutchman's creek on the northside of the disposal site.
M
t Town of Yaupon Beach
Page four
•1
9. PROJECT DESCRIPTION - Continued:
The draintile would be installed at elevation two (2) feet msl
and would use solid pipe from the edge of the salt marsh to it's
outfall point at the intersection of the creek (approximately 20
l.f. western outfall, approximately 50 l.f. eastern outfall).
This excavation would be accomplished using a backhoe and mats
for ingress and egress through the coastal wetlands. Once the
pipe is installed the original contours of the adjacent wetlands
would be restored.
10. ANTICIPATED IMPACTS
The installation of the collection and effluent transport system,
including 12" gravity sewers, force mains, manholes and pump
stations will create a significant amount of soil disturbance
along the network of Town streets and along the effluent
transmission route to the treatment plant site. However, if
adequate sedimentation and erosion control measures are
implemented and disturbed areas subsequently vegetatively
stabilized, there should not be negative impacts to the marine
resources. The most critical and sensitive area along this route
will be the installation of the force main along the roadbed of
old Highway 133 where extensive cordgrass saltmarsh borders
either side of the old causeway. The proposed method of
installation of the forcemain in the AIWW crossing (dragline
excavation with underwater stockpiling of spoil material) will
create substantial turbidity, as well as, disturbing twice the
amount of bottom habitat by side-casting the spoil material
adjacent to the excavated trench. Granted, these impacts would
be short-term, but the use of alternative methods, such as,
multidirectional drilling or clam-shell bucket excavation with
barge stockpiling of spoil material, would be less impacting and
should warrant consideration. Again, with adequate sedimentation
and erosion control measures, the disturbance associated with the
treatment plant and infiltration basin construction should not
impact the marine resources. The installation of the terminal
ends of the perimeter draintile will disturb approximately 2,000
square feet of regularly flooding Sbartina alterniflora marsh,
and approximately 900 square feet of irregularly flooded coastal
wetlands, consisting primarily of Juncus roemarianus. However,
if the original elevation contours of the marsh are
re-established after installation, as proposed, the damaged or
lost wetland vegetation should recover within a relatively short
period of time. Based on the quality of effluent from tertiary
treatment and treatment plant design, groundwater degradation is
not expected. However, the perimeter draintile is a design
safeguard to protect the compliance boundary and ensure that
contamination does not migrate to adjacent groundwater resources.
Since the draintile creates a connection between groundwater and
estuarine waters the potential for degradation of surface waters
does exist, should untreated or partially treated effluent reach
the draintile, as a result of treatment plant failure or other
circumstances.

Town of Yaupon Beach
Page five
10. ANTICIPATED IMPACTS - Continued:
Municipal wastewater collection, treatment, and disposal should
have some economic impact on the Town of Yaupon Beach. It will
allow for development in areas where existing soil conditions
would not have previously allowed development based on septic
tank systems. It will also abate any failures of existing septic
tank systems. Conversely, the system's design capacity
addresses only the amounts of wastewater generated by existing
water usage plus the projected increase resulting from the
development of the currently undeveloped property within the
existing Towns limits. There is virtually no expansion capacity
available with the proposed system should the Town wish to enlarge
in the future, either by annexation or extra territorial
jurisdiction. Also, there is a potential for increased
wastewater production due to redevelopment and expansion of
existing facilities.
Submitted by: E. F. B=ooks Date: December 20, 1991 Office: Wilmington
To: Joh Dorney
Pla ning Branch
DIVISION OF ENVIRONMENTAL MAMA ANT
CAMA MAJOR PERMIT APPLICATION VIEW
PROJECT NAME: Town of Yaupon Beach
COUNTY: Brunswick Projac#`. 920;09
STREAM OR ADJACENT WATER BODY: Dutchman CreeX and`the AIWW;
CLASS: SA
OPEN OR CLOSED: Closed
STORMWATER PLAN REQ'D: Yes
IF YES, DATE APPROVED: Pending
PROJECT DESCRIPTION: The applicant proposes to construct a
400,000 GPD municipal er system for the Town of Yaupon Beach.
REVIEWER: Gregs JOINT NOTICE: No
DATE APP. REC'D: 92/01/06 RECOMMENDATION: Issue
RETURNED: (ISSUE/DENY/OTHER)
RESUBMITTED:
INITIAL REPORT
FINAL REPORT: 92/01/22
WATER QUALITY CERT. (401)
CERT. REQ'D: Yes
IF YES, TYPE: General Certification #1179 for Sewer Lines
within a 201 Plan.
SEWAGE DISPOSAL
TYPE OF DISPOSAL PROPOSED: Proposed dual path tertiary
treatment facility
(EXISTING, PROPOSED, SEPTIC TANK ETC.)
TO BE PERMITTED BY: DEM
(DEM, DHS, COUNTY)
IF BY DEM, IS SITE AVAILABLE AND PERMIT ISSUANCE PROBABLE: Yes
WATER/WETLAND FILL
AREA OF FILL: WATER: 10,000 sq. ft.
WETLAND: 2,900 sq. ft.
IS FILL ELIMINATING A SIGNIFICANT USE? No
DREDGING
IS DREDGING ACTIVITY EXPECTED TO CAUSE A SIGNIFICANT LOSS
OF RESOURCE? N/A
IS SPOIL DISPOSAL ADEQUATELY ADDRESSED? N/A
MARINA
ARE THE FOLLOWING ADEQUATELY ADDRESSED?
SEWAGE DISPOSAL: N/A
MARINA SERVICES: N/A
OXYGEN IN BASIN: N/A
CLOSURE OF SHELLFISHING WATERS: N/A
(ATTACH A MARINA USE ATTAINABILITY EVAL.)

92009.JAN
Page Two
RECOMMENDED CONDITIONS OR PERMIT RESTRICTIONS: That the project
be done in such a manner so as to not cause turbidity outside the
immediate construction area to exceed 25 NTU.
JHG:92009.JAN
cc: Central Files
Wilmington Regional office Files
DCM-Ed Brooks
11x05. 15. 92 04: 12 PM
*COOPER BUILDING

State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Coastal Management
225 North McDowell Street • Raleigh, North Carolina 271502
James G, Martin, Governor
William W. Cobey, Jr., Secretary
>t?o?IDi>OK
TOt Linda Sewall, DEH
Dennis Stewart, WRC
Rich Carpenter, DMF
John Dorney, DEM, Water Quality Section
Perry Nelson, DEM, Groundwater Section
Cliff Winefordner, USA COE
FROM: Stephanie Briggs, Asst. Major Permits Coordinator "&
SUB=i Modification to A CAMA/Dredga and Fill Application
DATE: May 150 1992
APPLICANT: Town of Yaupon Beach
PROPOSED LOCATION: SR1101, Fish Factory Road, Brunswick County
Roger N. Schecter
Director
PROPOSED PROJECT: A 400,000 GPD municipal sower system for the Town
of Yaupon Beach, including gravity collection system,
forcamain to SR1101 to treatment plant site, and
infiltration basin.
Attached is a revised field investigation report prepared by Ed Brooks,
the DCM field representative for this project. This field report is prepared
to accompany the most recently revised work plan drawing for the project dated
revised 4/28/92.
If your agency has a response to this modification, I will need it at
your earliest possible convenience, but no later than May 22, 1992. Thank
you, in advance, for your cooperation.
SSB/aw
cc: Ed Brooks
Jim Herstine
Dave Atkins
P.O. Rux )IM7, Pmkigh, Nardi Camllna 27611.7687 14ephunt 914733.2293
P02
q
An Eaual 0wommity 0iirm;itlvc Art on PnIDIr r
N
05. 15._92 04: 12 PM
COOPER BUILDING P01
Proposed Design Modification to the Town of Youpon Beach
Application for State Permit
Pro get RIV41 ion
The consultants, Boney and Associates, inc. for t}?a Town of Yaupon Beach, have
submitted the following design modification to the perimeter draintile around
the infiltration basin, of the wastewater treatment and disposal facility,
proposed for the Fish Factory Road (SR 1101) site. This proposed facility
would be located adjaear,t to an unnamed tributary ,of the relocated pvrtiQn
Dutekman Creak, in Brunewick County. The adjacent waters are classified as SA
by the NC Division of Environmental Management, and are open to the harvesLing
of shellfish.
The applicants had propeaad an earlier modification to tnovate and construct
gravel bottom ditches through the intertidal coastal wetlands to convey the
drointile pipe effluent to the creek. The applicants now propose to return to
the original subtexranpan installation of solid 8" pipe through the coastal
wstlonds. A 20 feet section of V-wire PVC well screen (.080" slot sire) Mould
be installed on the terminal end of the. pipe. The pipe would be capped and
terminated 20 feet frori the run of the small tidal creeks. Twelve (12) inches
of gravel 067) would be installed around the 20 feet well screen section and
then backfilled with the excavated material to reestt+blish the original grade.
Excess excavated material would be disposed of on highground.
Anticipated Imyactss
Due to the saturated condition and soil characteristics of the BothiCket soil
type, it is unlikely that the soil will accept any additional wastewater,
discharging from the proposed dispersion device. The head pressure created
from the dispersion of the discharge wound beneath the infiltration basin will
probably push the effluent to the soil surface along the length of the
bsokfilled trench where the soil4s structure has been disrupted by the
original excavation and creates a less resistant hydrologic pathway. Once on
the marsh surfac.Q, the effluent would overland flow to the adjacent stream.
Some scouring and channeling may be associated with this process, which would
be compounded by tidal action. Also, the Bothicket soil type consists or 30-
60% clay. Clay soil partloles are less than .002 mm in sire. Substantial
clogging could be expected within the rock trench, as well as, in the well
screen dispersion pipe, potentially reducing the effectiveness of the
draintile system.
Potential negative impacts to estaurine water quality remain the same as in
previous reports. Impacts to coastal wetlands remain the s*ne as originally
reported. Howevet, recovery and reestablishment of wetland vegetation along
the backfilled pipe alignment may net be as uftiform or complete, should
scouring and/or channeliaation occur. All impacts associated with ether parts
of the project remain the same.
IOTr;;_ F.C2
?b
State of North,-•Cardiina
Department of Environment, Health,, and Natural Resources
Division of Coastal Management
225 North McDowell Street • Raleigh, North Czroli 6(11,
lames G. Martin, Governor
William `k! Cobey, Jr., Secretary
MEMORANDUM
TO:
Linda Sewall, DEH
Dennis Stewart, WRC
Rich Carpenter, DMF
John Dorney, DEM, Water Quality Section
Perry Nelson, DEM, Groundwater Section
Cliff Winefordner, USA COE
FROM: Stephanie Briggs, Asst. Major Permits Coordinator c_

SUBJECT: Modification to A CAMA/Dredge and Fill Application.
DATE: May 15, 1992
APPLICANT: Town of Yaupon Beach
PROPOSED LOCATION: SR1101, Fish Factory Road, Brunswick CoLnty
Roger N. Schecter
Director
PROPOSED PROJECT: A 400,000 GPD municipal sewer system for the Town
of Yaupon Beach, including gravity collection system,
forcemain to SR1101 to treatment plant site, and
infiltration basin.
Attached is a revised field investigation report prepared by Ed Brooks,
the DCM field representative for this project. This field report is prepared
to accompany the most recently revised work plan drawing for the project dated
revised 4/28/92.
If your agency has a response to this modification, I will need it at
your earliest possible convenience, but no later than Mat- 22, 1992. Thank
you, in advance, for your cooperation.
SSB/aw
cc: Ed Brooks
Jim Herstine
Dave Atkins
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-73?-229=
An Fmml C)nn rninin Ariirrnari e .Anion Fmnlr, ?r

Proposed Design Modification to the Town of Xaupon Beach
Application for State Permit
ProJject Description
The consultants, Boney and Associates, Inc. for the Town of i'aupon Beach, have
submitted the following design modification to the perimeter draintile around
the infiltration basin, of the wastewater treatment and disposal facility,
proposed for the Fish Factory Road (SR 1101) site. This proposed facility
would be located adjacent to an unnamed tributary of the relocated portion
Dutchman Creek, in Brunswick County. The adjacent waters are classified as SA
by the NC Division of Env=ironmental Management, and are open to the harvesting
of shellfish.
The applicants had proposed an earlier modification to excavate and construct
gravel bottom ditches through the intertidal coastal wetlands to convey the
draintile pipe effluent to the creek. The applicants now propose to return to
the original subterranean installation of solid 8" pipe through the coastal
wetlands. A 20 feet section of V-wire PVC well screen (.080" slot size) would
be installed on the terminal end of the pipe. The pipe would be capped and
terminated 20 feet from the run of the small tidal creek. Twelve (12) inches
of gravel (#67) would be installed around the 20 feet well screen section and
then backfilled with the excavated material to reestablish the original grade.
Excess excavated material would be disposed of on highground.
Anticipated Impacts:
Due to the saturated condition and soil characteristics of the Bothzcket soil
type, it is unlikely that the soil will accept any additional wastewater,
discharging from the proposed dispersion device. The head pressure created
from the dispersion of the discharge mound beneath the infiltration basin will
probably push the effluent to the soil surface along the length of the
backfilled trench where the soil's structure has been disrupted by the
original excavation and creates a less resistant hydrologic pathway. Once on
the marsh surface, the effluent would overland flow to the adjacent stream.
Some scouring and channeling may be associated with this process, which would
be compounded by tidal action. Also, the Bothicket soil type consists of 30-
60% clay. Clay soil particles are less than .002 mm in size. Substantial
clogging could be expected within the rock trench, as well as, in the well
screen dispersion pipe, potentially reducing the effectiveness of the
draintile system.
Potential negative impacts to estaurine water quality remain the same as in
previous reports. Impacts to coastal wetlands remain the same as originally
reported. However, recovery and reestablishment of wetland vegetation along
the backfilled pipe alignment may not be as uniform or complete, should
scouring and/or channelization occur. All impacts associated with other parts
of the project remain the same.
1111YI P - A.'