SW8901018_Approved Plans_20130523

l SILT FENCE FABRIC.
SILII 1
T FENCES' I 1� ' (BURLAP�DNLY IF LIFE ei
PROJECT IS LESS THAN.,:`•
and at �•' 4 MONTHSl
ilt fences as shown on the drawing FILL stop
s necessary to control siltation of adjacent FOR REPAIR OF SILT FENCE • o
FAILURES,USE No.57 '
wooden posts are used, they shall be a WASHED STONE ss") a 1
n of 3" in diameter and 6' in length. Posts ,.
`�M ,;•. .• GRADE .
)e creosote or pentach.lor-ophenol treated ,. ,
n pine. = ,�_.��. s" MIN.COVER 0 �
J ,y. SKIRT UC
steel posts are used, they shall be 5' in height w 8. • `
of the self-fastener angle type.
N ,a� ANCHOR SKIRT As '
wire' fencing, where. used, shall conform to M �• ANCH R BY ENGIN `�
A116 for class.3 galvanizing. Fabric shall be a
m of 32" in width and shall have a mimimum of:
wires with 12" stay spacing. Wire fabric shall SECTION VIEW
;d to wood posts with not less than .n9 wire
1-1/2" long. ,
shall be 14 oz. weight and shall be a mimimum• SILT FENCE'' DETAIL -t
in 'width.
;pair of silt fence failures, use no. 57 washed NTS
y,
,� �1 T.i,� T .NCE OF STO MWATER II�
1. Following each rainfall exceeding one half inch, and at least on a monthly basis,catch basins,
spillway structures and the infiltration basins shall be inspected. Maintenance activities shall
include the following:
- removal of sediment from catch basins
removal val of all debris from the spillway areas to facilitate unobstructed flow over the
spillways; and cover on the spillway and dike areas=
maintenance of a healthy groundiive cover,
- stabilization of any areas exhibiting soil erosion with a suitable eliminate the potential*�"or erosion; arnd,ton
blanket,riprap, and/or pavement as necessary to ,time performar�,:e of the infiltration
- correcting other problems as may be necessary
basin and hydraulic structures.
iannual basis the bottom of the infiltration basins shall be restol•cd to a level plane at
2. On a sem
the elevations presented on the plans.
5(4) c'U/0f7
APPROVED
NORTH CAROLINA ENVIRONMENTAL
MANAGEMENT COMMISSION 1
DIVISION OF WATER QUALITY
2.3- /4,4Y- zof3 i
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O SPECIAL NOTE: The Beach at Brick Landing Associates shall provide or
establish the legal documentation and easements necessary for wastewater
O system construction, operation and maintenance in compliance with the
requirements of the Brunswick County Health Department. This
documentation shall include but not necessarily be limited to homeowners
IMPERVIOUS AREA NOTESt c agreements and associated easements whereby the means is guaranteed for
1. FOUR DIFFERENT STYLES OF HOUSES WILL BE CONSTRUCTED AS A PART OF THISp proper system operation and maintenance where said system is in common
PROJECT. TIIE RECTANGULAR "ENVELOPES" SHOWN ON EACH LOT IS REPRESENTATIVE g ownership and/or use. "Common ownership" components of the wastewater
OF TIM LOCATIONS OF THE HOUSE AND THE GARAGE. AN IMPERVIOUS AREA VALUE OF system shall include:
2720 SF WAS USED FOR EACH LOT IN IMPERVIOUS AREA CALCULATIONS. THIS VALUE I
REPRESENTS THE STYLE HOUSE WITH THE LARGEST IMPERVIOUS AREA, TILE GARAGE, - _ _ _
AND AMPLE PAVED DRIVEWAY. THIS METHOD GIVES THE DEVELOPER TIIE FREEDOM TO - - _ � 1 1) 6 inch wastewater gravity sewer;
I I 2) 4 inch and 6 inch gravity service lines from the point of tie-in to
CHOOSE ANY OF THE FOUR STYLES OF HOUSES FOR ANY PARTICULAR LOT AS - - - _ _ _
CO
MARKETING CONDITIONS DICTATE. _ _ _ I _ - - _ _ _ _ _ - i I 0 the wastewater gravity sewer to the cleanqut at the end of the
2. ALL DECKS ADJOINING HOUSES SHALL BE OPEN (NO ROOFS) AND OF WOOD _ _ - _ - _ 1 N. service line;
CONSTRUCTION. ALL WALKWAYS BETWEEN TIIE GARAGES AND ROUSES SIIALL BE WOOD - 1- - I SR 1 1 5 5 _ - - _ I I 3) septic tank and dosing tank system;
"DECK"CONSTRUCTION. CONSTRUCTION
ENTRANCE ttt, .,AIL) .. ` .g . I - - - - - _ _ �' i l�f�i�.�C- / I 5) low pressure g mains;e wastewater effluent disposal fields. x
•
V \ - - I The easements and/ or other rights shall be retained and/or granted as
/ ) \ , 1 necessary for all parts of the "common ownership" components, including N.
WATER TABLE NOTE: /° ° I - - - - - - - - _ _ _ _ i I those parts located on or between residential lots. s ~c . -#4."
THE ELEVATION OF THE WATER TABLE AT INFILTRATION BASIN #1 WAS MEASURED AT 4.9' i3 --- - I ,•'�'�4` • '"
MSL BY THE ENGINEER ON 9/28/90. THE ELEVATION OF THE HIGH WATER TABLE AT , _- 1 I .,�0� ' aC P•-
INFILTRATION #2 IS APPROXIMATELY 4.5' MSL BASED ON FIELD INVESTIGATIONS BY THE / W - '--/ ; /'"' ' I � Q -? `'
ENGINEER AND A 2t22/90 FIELD INVESTIGATION BY MR.VINCE LEWIS.DEM,NCDEHNR. ° 7 /,- `,I I I v� •:c$
19_ _ ° % % I I ;y ,,off . .41
dtl '-
D 18 - - - - - _ - 18 1.1ii°1°; 11 •REPAIR i< - / I I. I WORK IN AREAS OF EXISTING UNDERGROUND UTILITIES: The locations ' t'
RUNOFF FROM THE ALL ROOFTOPS AND OTHER IMPERVIOUS ° 10 AREA#2 / _ / shown for existing underground utilities should be considered aS
REPAIR I
SURFACES ON THE SINGLE FAMILY LOTS SHALL BE DIRECTED AREA#1 I - �� I I approximate only. The Contractor shall be responsible for field location of all t
TOWARD THE ROADWAY. WHERE THIS REQUIREMENT CANNOT _ _ - - ! , I I underground utilities whether or not they are shown on the plans. Any
`` BE MET BY GRADING, IT SHALL BE ACCOMPLISHED BY I \v I damage to underground utilities shall be repaired to the satisfaction of the 44 M
GUTTERING AND/OR OTHER APPROVED DRAINAGE MEASURES. 17 - _ _ - - - - - of• � ° 1 1 utility owner, and all costs associated therewith shall be borne by the �'y
\ �
° I I Contractor. "' I
0
: ;
THESE FOUR LOTS CONSTITUTE PHASE 2. \6 o*- - — i
° ° la)
/�� ell)
\ 1 l locEI
THE REMAINING TWELVE SINGLE-FAMILY
11 _ _ _ _ LOTS ANU ROADWAY CONSTITUTE PHASE 1. \5 _` _ _ \ I b
- - — _ , - _ _ _ - -- \ -p 1 GRAVITY SEWER CONSTRUCTION NOTES °
csJ
p( 1 - - - - _ _ - 6 I 1 1. Pipe installation shall be in accordance with ASTM D2321, and as modified in r
13 J / \ \~ \ _ 1 1 these notes. `
' AllilbratI I ` - �° I 1 2. Bedding shall be Class I material with a minimum depth of 4.inches. (See ASTM D2321 ,
/ / I 1 for definitions.) ,
• I0--" - - J I / �/ / s"PVC :ATERV I 3. Haunching and backfill shall be Class I or Class II material. Where Class II material is
- - - - _ - - - - / / / j I - - L 14 used,each stage shall be compacted to a minimum of 95% Standard Proctor. Stages shall
- - - - - - \ -IIIIIIIIIIIIIIIIIIIIIII _ / /PARA .EL 3" / I I I include: a) from the trench bottom to the spring line of pipe; b) from the spring line of pipe �t�1 °��
- - \ DO$,ING MAIN_, 4)?
I I I t0 the topofpipe; i�( and c) each 4 inch increment from the top of the pipe to the elevation of
- _ _ \ ( f► s UIP I 1 I the subgrade for the roadway. g G=�
�� _ - - - - - \, OOP / & - - - - _ - - -\ \\ \ \BY ISDNTRAC 0R / I I 4. Compaction equipment shall not be used directly above the pipe until sufficient backfill has
beenplaced to ensure that such compaction equipment will `-
/illk I
I p not have a damaging effect on
/ 1 \ / MANHdI.E#a / •imi I I the pipe.
9.---- - - _ ARROWS D= •TE DIRECTION 1 / I I I 5. Each joint of pipe shall be bedded true to line and grade with uniform and continuous
- _ - _ _ _ _ _ OF RUNOFF. P.) \1411*/
1 1 / {SEE Pf�OFILE s.\ I support from a firm base. Batter boards and string lines, or laser beams shall be 1r
MANHOLE#2 e I I used. The Contractor will be required to furnish the detailed stake out for guidance of the 1�y
1 (SEE PROFILE) ` \ \ I I I $ ,
04 ' 'il'
1lio r s., S - , \ I pipe laying operation.
_ \ �� «�' stgi t� \ \ I 6. The Contractor shall remove all:heat:r encountered in the trenches by pumping, bailingI 'I'RENO DRAIN 02
` ` \ (SEE DETAIL) f- - - h 13 andJor by well pointing. A11 jointg f pipes shall be made in a dry condirion.
8-� B �f 18 I 1 1� ) 7. 11precautionsshall be takenby ontractor to prevent sand and mud from entering the
4.
\� , -ir
7 i •, \ _ - I� I pipeline during construction. Upon completion of the work, the contractor shall brash and 4
��—������ •
0 ! \ I I claa l linnes'as required to remove any accumulated debris.
��'���� JO �i) 1 - _ 1 8. lne Contractor shall utilize a low pressure air test to determine the acceptability of the
�, �� +viro J 1 / \ � - _ _ 1 i P P Y
9 e.,�, =�'O� v u / / \ _ - _ - _ _ \ II I r. npleted work relative to being leak proof. Said test shall be performed in the presence of
,u . °' 5,—�_ �p - �,, R pRopST / I \ \ - - - I theEngineer. The Contractor shall be responsible for documenting the test and providing a M
�_ Edix0C1
/ / - - - _ _ - \ I I I signed copy of said documentation to the Engineer. The test shall be performed in the cfl ,
I 9 _� s"DR R ELI.P4:E....800111L.1-1E):11 �-' ,�,. 'DIAME� 14N gpX / _ / / \\ \ , - - - - - ,
- - - / / _ _ - _ - 1,0
\ / :allowing manner. •Lv 1 i,s\ ��{ SSE , • dN'C Msk. _ J/ \�_ /_ I \ 1 /I53 -�i>s� ER SERIISC.E �'S t lGA 1 9 MSL / / / ` / \1 \ \ I h\ ` — _ \ \ 1 / I tj Allconstruction is to be com lete with all cleanouts, service laterals, ,sPILLWi4Y eREST'� kS o�iY�l '�"' ca' r = X .m f t p._ ,. / \ \ P PVC plugs, etc. -�ELEV.=8.51 MSL i , i - ��3� - I ��� COI / _ \ \ _ _ —_ - - /I \ I I I 1 m place. .. _�
I
' ` ' / \ FF F I S \ _.\\ I / J / / / 11 I _ _ 12 b) A pneumatic plug shalt installed in the sewer line at the septic tank, thus making for a '
„ G °10 \ _ sealed Line. ,
a t 1.g41
_ _ _ - _ _ i / C) If the water table elevation is above the pipe at the lowest point of the sewer line(septic rn
' ���" R MI _,11k (9 _ - ! i 0. $.5 M 5\17 _ _ _ _ _ _ - - _ ; // / I tank area), then the associated hydrostatic pressure for this water level steal i be f `ri
` / determined b subtracting the elevation of theCO
- = / I I Y g pipe (at its lowest point) from the
,� 7 / I I elevation of the water table,and multiplying this number by 0.44.
-
fit c,.
/ _ - - . 1- ill, sa.3' MS - - - - _ _ - - - [l) Low ressure air h
,y, / / - 1, o. _ — 1 p s all be introduced into the sealed line until the internal air pressure W i
u / / � -1� - � -- ` - - _ - - - _ - - - - - / _ - — — -III ) `"I, reaches aprvessure ue cshall be allual to the owe stabilizedstonc at no less than the plusressure (from "c" above) 4 psi. �' `� W
hydrostatic'..':'. , l' ‘ pressure �✓ Z
/ I - "I' ,` _ / ` 1 1 plus 3.5 psi. O _
1 �' Il0 i;4. - - ` / / _ \ I I Following "stabilization", the line shall be termed acceptable if the pressure does not
IFE'IIp 13 - - - - `" - _ _ _ / / \ \ I 1 drop more than 1 psi within a period of 2 minutes. Z o
�� RIP RAP BANK PROTECy10N z
E I _ - _ _ - - - - i / / _ - _ _ / / \ \ \ I I .) If the installation fails to meet the above requirement, the Contractor ;hall, at his own Cn W
x . 1'F E IUi • 12 - - _ _ - / / / / \ N I I expense, determine the source of leakage, and make any necessary repairs. The line
10 \ / \ \ - _. 15
' I I _ s _ \ / / / /� \ \ r- _ -1.10 :=shall then be retested following the same procedure. , o
a RIP RAP BANK, / / ' ' _ _ _ / / _ / \ \ - - I
PROTECTION' \ /8 - _ \ \ ( / / / \ ` - /1 1
� _ - ► / / \ i I AZ
04111 �„ \ / s'� 1DFFIC'IRATIOtI :' — \ I / / / / / \ \ APPROVED
' \ ( / - / / / .O'4v1 S L / / I / / \
EL EV.OF CREST OF DIVERSION g \\ l f / , BASIN#t - / /
(SEE SHT.2 FOR iiii / I / NORTH CAROLING ENVIRONMENTAL. 'et, --� CV
xis ` _ L / I cv
SPILLWAY 8.1'MSL / BASIN_DATA) - /��/i, ELEV OF CR�SY�151VERSION SPILLWAY= 8.8�MSL / / N X
3 // 1 / / MANAGEMENT COMMISSION
��2 MSL \ / / / i l l / / I / / r \ I) O
CONTOUR \ \ 1 / / 9 / 3 // // / / / / / / / / // / \ DIVISION OF AVER, QUALITY 4 z m
(SEE SHT.#'2 FORrDETAILS \ N \ \ / - - - - - - / / / , / / -
DtvrRstc�rtsLtways.a -tk - \ \ / e - / / // / / / / // / 1 PARTIES RESPONSIBLE FOR WASTEWATER SYSTEM Q
\ '`\ 1 / \ II IS / / / / // / / / / / / \ OPERATION AND MAINTENANCE 0
( 75
4-6
\ \ \ _ / / / // \ \ / / / ' ) I he "Tripartite Agreement" between The Beach at Brick Landing, v) a�
\ \ — — / / // / / / / \ \ / / // / / / // I I vilnership (Developer), the Brunswick County Health Department,\ \ / / / , / \ \ / / / / / / / ` 1 The Beach at Brick Landing Homeowner's, Inc, sets out the •a.
(SEE SHT.2 FOi2 \ N - _ _ _ - - / 1 1
4, °. BASIN DATAOponsibilities for wastewater system operation and maintenance.
�.. � • - M(N.ELEV.T �71a(Mr/7.:,'AAt'St%/ \ \ / / / \ \�/ 0 Z
MK Et•_Ev.TOP OF - \ \ \ \ / °, \0/\ ,�/ / 1 I I / ! s document was executed by authorized persons of the DeveloperIN.ELE 8.7'MSL g \ \ - - - - � / / / , / �\ /1 I / r\ ` / \ \ // / , / \ 1 (,all August 23, 1989, and thereafter transmitted to the Brunswick
I N N / / - / \ SILT FENCE / / / // / / \Lk \ J/ j ) / my Health Department. The Developer's address is:
- - - - - �r��+ .y.n� - - _ _ //, / The Beach at Brick Landing Associates
r N \ \ ! � � � - � , / / / � \ _ _ _ / / // / /� / / /// / / / Route S, Box 107
�V.:, ' \ �� \ ! 1 \, � � � _ - -— � / / \ / - - / / // // /� // / / /
_ I / Shallotte, North Carolina 28459
______
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N I \ \ \ / \ ( � r / /// % �/ // /- //
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_ - -- - - ' / / \� / II/ �\ \ - / - \ _ �� jam ^ _$_ ate _ , �i �� - _ _ _-_---- �— U 15
11 r -_- ' ,�ii' _ - ' - SPECIAL NOTE WATER LINE SHALL PASS UNDER ALL'SEWER SERVICES. ALL SEWER SERVICES �' rl
x // \ i' - _ , .,. ' APPROX LOCATION OF MHW SHALL BE OF CAST IRON OR DUCTILE IRON MATERIALS. (SEE DETAIL) 6" WATER LINE SHALL BE . tol #�C�tot ='
\� \L - - ice /' DUCTILE IRON SEWER SERVICE LOCATIONS. (SEE PLAN, THIS SHEET.) 2" WATER LINE SHALL BE y.. _' '
�" •k \ -' �% �. ENCASED IN CONCRETE FO1lA DISTANCE OF 10'ON EACH SIDE OF THE SEWER SERVICE. Q ' '
k - ,-SEWER SERVICE PLANNING AND LANDSCAPE ARCHITECTURE °► '
,-it*
CONCRETE
10 MIN WATER I�IE 0 d ti e
lam'' /��� � �c* /� sue►
ILLUSTRATION- 11 a r / WILl[. DA iz ASSOCIATES C 1 co ., .I
2" 40 20 0 40 80 12 & _
�—I ' PIIIIIIWIMIIIIMillill9 8000 REGENCY PARKWAY SUITE 140 c ,a t i
1 SCALE IN FEET CARP NORTH CAROLING 27511 °'
f
10'M 10'MIN. • c
1.?BYGIk�X11 �ERv'C. ; ',:
tit.
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EROSION CONTROL NARRATIVE EROSION CONTROL GENERAL NOTES a STORMWATER INFILTRATION BASIN "l" DATA, t, $TORMWATER INFILTRATION BASIN "2" DATA
A. THE BEACH AT BRICK LANDING GENERAL PROJECT DESCRIPTION 1. All construction activities shall be performed in compliance with the Sedimentation Pollution
Control Act of 1973. SURFACE AREA OF BASIN>9,000 SF SURFACE AREA OF BASIN>5,900 SF ,k,
The Beach at Brick Landing will be developed on an approximately 7.2 acre tract of land BOTTOM ELEVATION=8.0 FT.MSL BOTTOM ELEVATION=7.2 FT.MSL
NCSR 1155 and NCSR 1143 in southwestern Brunswick 2. All land disturbing activity is to be planned and conducted to limit exposure to the shortest DIVERSION SPILLWAY ELEVATION=8.8 FT. MSL DIVERSION SPILLWAY F1.FVATION=8.1 FT.MSL
located at the intersection of DIVERSION SPILLWAY WIDTH= 15 FT. DIVERSION SPILLWAY WIDTH=20 FT. ? .,
County. This tract is bounded on the south by the Atlantic Intracoastal Waterway (AIW). feasible time. STORMWATER RUNOFF VOLUME FROM 1.5 INCH RAINFALL= *5,388 CF STORMWATER RUNOFF VOLUME FROM 1.5 INCH RAINFALL< *5,106 CF < kG
The initial phase of this project will consist of twelve single family lots and a swimming STORMWATER STORAGE VOLUME AVAILABLE @ SPILLWAY ELEVATION >5,800 CF STORMWATER STORAGE VOLUME AVAILABLE @ SPILLWAY ELEVATION >5,300 CF
pool. The developer ma in the future decide to expand the project, possibly to include 3. All construction sites and severely eroded areas shall be stabilized by the establishment of a POOL ELEVATION REQUIRED TO PASS 7.7 CFS (Q 10)=9.2 FT. MSL POOL ELEVATION REQUIRED TO PASS 9.1 as (Q10)=8.4 FT.MSL ,r
P P Y MIN. TOP OF BERM ELEVATION=8.7 FT.MSL e"
multifamily units, though no final plans now exist for doing so. permanent ground cover. The Landscaping Plan presented in the plans shall be followed to MIN. TOP OF BERM ELEVATION=9.5 FT. MSL � ;����
the maximum extent possible. �; •�5,106 cf exceeds runoff from the initial project which includes 29 650 sf of impervious area, �' k
Ana approximately 850 foot longstreet, with valleycurbing, will serve the project. Potable 5,388 cf includes runoff from the initial project which includes 25,600 sf of impervious area, pr jpe
PP Y g p . plus an allowance of 17 500 sf of impervious area for future construction in Basin "1". plus runoff from thephase 2 project which includes 11,200 sf of impervious area.
water supply shall be from the Brunswick County Water System and distributed on-site 4, Where it is not possible to establish a permanent ground cover in a reasonably short period of PePr pe
through 6 inch and 2 inch water lines. Wastewater services shall be provided through a time due to seasonal considerations, a temporary ground cover shall be established. The in
central, on-site collection, treatment, and disposal system. temporary cover shall include the planting of annual grasses or small grains. Where the
season or other conditions are not suitable for growing a temporary erosion resistant cover,
The developer of the project is The Beach at Brick Landing Associates, Shallotte, North or where the growth of a temporary grass or grain would be detrimental when considering
the requirements of the Landscaping Plan, mulch may be applied. Mulch used alone shall ,y�°tK.,�,
Carolina. be for the shortest time practical. A temporary or permanent vegetative cover shall be ;. '�6
B B . SOILS AND TERRAIN
established as soon as conditions are favorable.
material originatingfrom US Arm Corps of 5. Silt fencing, and other temporary erosion control measures as may be necessary, shall be -z._� ni.
Most of the project area is covered with spoil Y rP �' - ,
Engineers' dredging activities of the AIW. The soils in the northern most section of the installed prior to the start of construction. As soon as the area is stabilized, the temporary `'o tt ,
project area, however, belong to the Wando and Blanton series. All soils are excessively measures may be removed. TOP OF BERM W" ��'*` ©q e " `
drained. tNF1 BOTTOM INFILTRATION BASIN 8.8' MSL(CREST) �w: �
kes
9.5' MSL
6. Topsoil shall be used over unfavorable soil conditions for successful establishment of r -�
A topographic map of the area is presented in the design plans. vegetative cover. __ _ _ _ _ _ _ - i
� 15' -� E
C C. EROSION CONTROL MEASURES 7. Irrigate as necessary to optimize plant growth. to
STORAGE VOLUME REPRESENTATIVE OF ram*'
Land disturbingactivityfor this project will be related to the construction of roadway, 8. Over the life of the project, the owner shall make periodic inspections to evaluate the success RUNOFF FROM 1 1/2"OF RAIN FALL V
e4
in controllingerosion of soils to off-site areas. If areas are found where erosion is taking �", s
housing, wastewater effluent disposal fields, infiltration basins, and swimming pool. The L -,
wide buffer area between the disturbed areas and the AIW will provide the primary means for place, the Owner shall take the necessary measures to remedy the situation. (LOOKING UPSTREAM) �`. . ..
natural erosion control. The primary method for "artificial" erosion control will be two CROSS SECTION THRU SPILLWAY #1
stormwater infiltration basins. As presented on the plans, drainage from most of SCALD 1"=5'
permanent
these basins. Aside from these primarymeans of U 0
the disturbed area will be directed to. 5' .1 v.
erosion control, the layout of the project lends itself to the effective use of silt fencing.
The primary method for preventing erosion on a short term and long term basis shall be /8.8' MSL (CREST) "'•.'
n nt ground covers. A detailed landscaping plan (see plans) shall be FLOW r i'
temporary and perma a gr P g P f h �7 ��y r 8.2'MSL a
thelifeo the followed to provide aesthetic appeal as well as to minimize erosion over
G TIE N TO CHAN EL UPSTREAM F w,~
project. SEE PLAN FOR GRADE FROM ia
ol A
D. DESIGN BASES SAFETY FACTORS A
e, MAX 1 THIS POINT DOWNSTREAM .e. t
' -
Due to the probable expansion of the project in the future, the stormwater collection, VARIABLE AS DIRECTED BY THE ENGINEER
transportation, and infiltration systems were designed with significant safety factors.
` LONGITUDINAL SECTION THRU SPILLWAY #1
`' � ' '
Specifically, the hydrology and hydraulics calculations for the drainage area of catch basin - S . 1'=2,
number 1 were performed assuming an eventual impervious area 100% greater than that cf i!' `, " �� a � f- • �"'
the initial project. Likewise, the calculations for the drainage area of catch basin number .Z ��. Q. , �. .
were performed assuming an eventual impervious area 11.2% greater than that of,he initiz.1 MIN. 10 GA. 4r\�\4v ;4 ;`'`< ( MIN. IZh GA.
- rr� of , INTERMEDATE
i.
project. Further, the infiltration basins were designed to hold over twice the volume of LINE WIRES ��� � 4 >.,,� e .. ;fad . WIRES ='"j
runoff as required for the initial phase by Stormwater Regulations. }. \�; , p. �~ y '`
�Q s�,,� .� 0'MSL 8.1'MSL(CREST) /'9.1'MSL `
\/xi y.` t •e « f: ` '1 4 GRADE . ' ,e
eJxrale sue``':`' _ � _. a°, .1k = 20 -
C. , -. 4, .816 -iir a. .. r,w^W:"a T , 1 Fi Ler.•alfr ----.'l tl�• !, , Al
• ita
1 - {' LOOKIRG UPSTREAM
IA .0A ,,I„,-4.,:
• CROSS SECTION THRU SP) #2 „4
! .
E>E sc. 1
FRONT VI
T OR POSY 40` % ' ;� "' it C.
CONSTRUCTION SEQUENCE STEEL `"'000
WIRE FABRIC
1. Construct construction entrance- p
shown on theplans and at otter • cD
2. Construct silt fencing at locations SILT FENCES I' t r8.1' MSL(CREST) in
locations as necessary to prevent "sheet" erosion. ,_,r I` SILT FENCE FABRIC.
a .
f (BURLAP ONLY IF LIFE OF FLOW r---.
3. Construct stormwater infiltration basins. 1. Install silt fences as shown on the drawing and at ''j PROJECT IS LESS THAN 7 4'MSL
4 MONTHS) ,Z GRADE SHALL BE 3%TO POINT OF
4. Perform rough grading of roadway. , locations necessary to control siltation of adjacent '1 - rn
5. Construct open channels and diversion spillways. areas. FOR REPAIR OF SILT FENCE - 1 I o FILL SLOPE TIE-INTO CHANNEL4UPSTREAM
6. Construct water and wastewater facilities. FAILURES USE No.57
l 2. Where wooden posts are used, they shall be a WASHED 'STONE M (D �-SEE PLAN FOR GRADE FROM r 'it
Perform final gradingof general terrain. i •m f 3" in diameter and 6' in len th.. Posts ,z
7. g m nl um o g i THtS POINT DOWNSTREAM °)
8. Seed and mulch denuded areas. shall be creosote or pentachlorophenol treated II- GRADE (r
9. Perform final grading of roadway and prepare subgrade. southern pine. .
10. Construct slotted vane drain,place base material and pave roadway: LONGITUDINAL SECTION THRU SPILLWAY #2
3. Where steel posts are used, they shall be 5' in height ,"f� ''-� 6" MIN.COVER OvER W
11. Proceed with construction of residential units, recreational facilities, 1"=x
SKIRT•
and be of the self-fastener angle type. W S s �I+� r ' o
landscaping, etc. 4. Woven wire fencing, where used, shall conform to \ 14✓
12. Maintain temporary soil erosion control measures until permalent 0 NOTE: VIGOROUS STAND OF LOW PROFILE GRASS ES SHALL BE MAINTAINED O z U
1 ANCHOR SKIRT AS GRASS(ES)
ground cover is established. ASTM A116 for class 3 galvanizing. Fabric shall be a �,4•; DIRECTED BY ENGINEER ON SPILLWAYS AND OPEN CHANNELS AT ALL TIMES. MOWING SHALL BE !R
minimum of 32" in width and shall have a mimimum ofi°'. SCHEDULED SO THAT HEIGHT OF GRASS DOES NOT EXCEED 2". 'n v
-,. f:'''.
6 line wires with 12" stay spacing. Wire fabric shall V1 °
fastened to wood posts with not less than #9 wire SECTION VIEW INFILTRATION BASIN DIVERSION SPILLWAY SECTIONS W_ z
staples 1-1/2" long.
5. Burlap shall be 10 oz. weight and shall be a mimimum -
o
fi
of 36" in width. SILT FENCE DETAIL CI 72
6. For repair of silt fence failures, use no. 57 washed
stone. NTS Z
4 Ei- N
1 50 MIN.
x
' a' o
`�7
.o •u
V/
V� e o o •4 . , . . c.
i....
4 MM
.' •C W
..
f
• . p Q
.,f . • C t• • • . ' t•"•a 2S Off WR17et Of
- • • • to . , • • " o0 PRCPGE0 STREET. ,
0 • 2. • .a EXISTING ,. D `. ° . ` .) wina[vER IS a
.✓ ' • • G.
. ` ° GRE A IE R. 2 , ,,..O
ROADWAY • A8C . • .
4• • • • k
•
ELT
•„t � 'D ' .6�•,:. MAINTENANCE OF STORMWATER FACILITIES °' ��
�?�'°' •AA • •• •• t. - • •••i.•4�dis1o••:•:.••',.`' .t`� �//^�
1. Followingeach rainfall exceedingone half inch, and at least on a monthlybasis,catch basins, �'��'
spillway structures and the infiltration basins shall be inspected. Maintenance activities shall • t' V ! itt�`�, =�'�- 4 �' �� ''"��
include the following: ,.t ;;,I. •:;t ! {r _ -----,, ,� ^ ca
:)
PLAN ( r•, , #
t , i t;! ! lj Via,°°'*,; 1 '�'"i=Al. e i i T
t . ft.an,,..i ttamow.,,,amilk eweal,i:a,......,‘,......... .4. g , \„,„„.„,„-!,,, Z T-i
-, - removal of sediment from catch basins �' ` '
€ `'awe S'�
CAST IRQN - '
- removal of all debris from the spillway areas to facilitate unobstructed flow over the FRAME&GRATE.--
......._..._......_.. ..-................-.......
spillways;
- maintenance of a healthy ground cover on the spillway and dike areas;
,. 15. MIN. - stabilization of any areas exhibiting soil erosion with a suitable vegetative cover, erosion
35' MIN. CONSTRUCTION
W Ca/t5T
EXISTING { blanket, riprap,and/or pavement as necessary to eliminate the potential for erosion; and, �,, n llii tR tt �� to ��
ROADWAY I
correcting other problems as may be necessary to optimize performance of the infiltration
41``
,Fir, 2"MIN. basin and hydraulic structures.
6" MIN. 'v �� y a
2. On a semiannual basis the bottom of the infiltration basins shall be restored to a level plane at
fillii :
the elevations presented on the plans.
CROSS SECTION
18"HELICAL CMP N
CONSTRUCTION ENTRANCE TRENCH DRAIN li,,,,
DETAIL errs o
NTS
o N Zm E k
,
o a, .) ,' ,�
• Q CO cot, i
.r 14
a a ao -a
co /� c C C t
0
,OPYCATTEGH SERV'CES 89 -0676 - I

0
0 SPECIAL NOTE: The Beach at Brick Landing Associates shall provide or
establish the legal documentation and easements necessary for wastewater
0 system construction, operation and maintenance in compliance with the
requirements of the Brunswick County Health Department. This
documentation shall include but not necessarily be limited to homeowners
IMPERVIOUS AREA NOTES: agreements and associated easements whereby the means is guaranteed for
p proper system operation and maintenance where said system is in common
I. FOUR DIFFERENT STYLES OF IiOUSES WILL BE CONSTRUCTED AS A PART OF THIS ownership and/or use. "Common ownership" components of the wastewater
PROJECT. THE RECTANGULAR "ENVELOPES" SHOWN ON EACH LOT IS REPRESENTATIVE , system shall include:
OF THE LOCATIONS OF THE HOUSE AND THE GARAGE. AN IMPERVIOUS AREA VALUE OF y
2720 SF WAS USED FOR EACH LOT IN IMPERVIOUS AREA CALCULATIONS. THIS VALUE I 1
REPRESENTS THE STYLE HOUSE WITH THE LARGEST IMPERVIOUS AREA,THE GARAGE, - - _ _ _ 0 1 1) 6 inch wastewater gravity sewer;
AND AMPLE PAVED DRIVEWAY. THIS METHOD GIVES TILE DEVELOPER THE FREEDOM TO - - - = I I 2) 4 inch and 6 inch gravity service lines from the point of tie-in to '
CHOOSE ANY OF THE FOUR STYLES OF HOUSES FOR ANY PARTICULAR LOT AS - - - - CC)
MARKETING CONDITIONS DICTATE. I _ - - I I the wastewater gravity sewer to the cleanqut at the end of the
_ I , - - - - - _ _ N. I service line;
2. ALL DECKS ADJOINING HOUSES SHALL BE OPEN (NO ROOFS) AND OF WOOD -- -� _. - - ) . I - -1--- _ _ I I 3) septic tank and dosing tank system;
CONSTRUCTION. ALL WALKWAYS BETWEEN TI IE GARAGES AND I[OUSES SHALL BE WOOD --; _ _ SR 115 - - - - - - _ _ I ,
"DECK"CONSTRUCTION. 7.` - _I - - - _ - - / I 5) low pressuregp pipe wastewater effluent disposal fields. k
CONSTRUCTION ENTRANCE _ - _ m
(SEE DETAIL) "'` ': : _ _ _ - - - _ ��
t � \ - - - - - - _ _ _ 1
_ 1 The easements and/ or other rights shall be retained and/or granted as
/ , - _ - - - - _ - - \ 1 necessary for all parts of the "common ownership" components, including
Q WATER TABLF, NOTE: • 0 I - - _ _ _ I I those parts located on or between residential lots. 03.. .
` „rh%ref
THE ELEVATION OF THE WATER TABLE AT INFILTRATION BASIN#1 WAS MEASURED AT 4.9' t -- ' / - \ 1 I x \ '
MSL BY THE ENGINEER ON 9/28/90. THE ELEVATION OF THE HIGH WATER TABLE AT / ,---j \ d:Sh�
INFILTRATION #2 IS APPROXIMATELY 4.5' MSL BASED ON FIELD INVESTIGATIONS BY THE / W / ` ' ��" 1 -'-' fc _
ENGINEER AND A 2/22/90 FIELD INVESTIGATION BY MR.VINCE LEWIS,DEM,NCDEHNR. 0 -`/,--� . ,_, 1 I ��
19- - / i 7 I :� cf; ,
• / 1 1 �r 4'/'� ,y t'
�3 1/ "
/ I I I ,ter`
- - IsEpq Ai _ / I I WORK IN AREAS OFEXISTING UNDERGROUND UTILITIES: The locations41
RUNOFF FROM THE ALL ROOFTOPS AND OTHER IMPERVIOUS 1810 © AREA#2 - / / I I shown for existing underground utilities should be considered as
REPAIR - r I approximate only. The Contractor shall be responsible for field location of all , ,
SURFACES ON THE SINGLE FAMILY LOTS SHALL BE DIRECTED :TA#1 - - - , '/� 1 I underground utilities whether or not they are shown on the plans. Any
TOWARD THE ROADWAY. WHERE THIS REQUIREMENT CANNOT -
BE MET BY GRADING IT SHALL BE ACCOMPLISHED BY i I I damage to underground utilities shall be repaired to the satisfaction of the Ft
GUTTERING AND/OR OTHER APPROVED DRAINAGE MEASURES. 17 - _ - - - - \,.. � • III 1 1 utility owner, and all costs associated therewith shall be borne by the ,
• � � I 1 Contractor. ti � ,�,
THESE FOUR LOTS CONSTITUTE PHASE 2. c- c ��' • 4 Ij `
THE REMAINING TWELVE SINGLE-FAMILY \�O '� \ \ I 7 '' v' ',,
11111111°1
,41witLimmil,
I I ~- - _ _ LOTS AND ROADWAY CONSTITUTE PHASE 1. \5 _ _ _ I _
•
\ I GRAVITY SEWER CONSTRUCTION NOTES 1
-� � _ _ _ _-
/ _ \ c ' I „
D, / ,- - - - - �\ ' _ _ - _ /6 I I 1. Pipe installation shall be in accordance with ASTM D2321, and as modified in ' „#+
\ / , \. - - I I these notes. '~I `
l3 J I \ \ _ �� \� 1 1 2. Bedding shall be Class I material with a minimum depth of 4.inches. (See ASTM D2321 , .
I I I for definitions.) *74.1. i
/ I'14111111111111111111111111111111111111111111
/ // �6"PVC ATERUNE_ I 3. Haunching and backfill shall be Class I or Class II material. Where Class II material is '
- - / / )7'' / L - - 1 14 used, each stage shall be compacted to a minimum of 95% Standard Proctor. Stages shall Ci`
- - - _ ' /pARg � a„ / I I I include: a)from the trench bottom to the spring line of pipe; b) from the spring line of pipe +t�+{ °� 3..f;
_ - - , 1 _ - - _ _... - - - \ ( / DOSING MAIN, / •' I I I to the top of pipe; and c) each 4 inch increment from the top of the pipe to the elevation of i"�
_ _ _ - \ (e., �a_� s„DIP I 1 1 the subgrade for the roadway. -.
- - - - - \ \ \BY t$ONTRACTOR r 4. Compaction equipment shall not be used directly above the pipe until sufficient backfill has • ,,
/ \ \ / r I I been placed to ensure that such compaction equipment will not have a damaging effect on .TMCd
vilk \ 1 I I I the pipe.
/ 1 MANH(1'LE#1 , I 5. Each joint of pipe shall be bedded true to line andgrade with uniform and continuous •;.� R
9•- - _ ARROWS 0,i OTE DIRECTION 1 / (SEE PI LIFL 13\. I I P P ) 4
- - _ _ _ OF RUNOFF.( -,) I I support from a firm base. Batter boards and string lines, or laser beams shall be .�
- - - _ / 1 MANHOLE#2 / \ I I used. The Contractor will be required to furnish the detailed stake out for guidance of the
-}., I 1 (SEEPROFlLE) \ \ I I I
�- - pipe laying operation. ,
v 1144 I e s'� s -\ \ 1 1 6. The Contractor shall remove all water encountered in the trenches by pumping, bailing 4/ \ lit , 'rRENQH DRAIN / w 50P \ \ 1- h I and/or by well pointing. All jointing of pipes shall be made in a dry condition, =�\ (SEE 6ETAIL)
" $ B \ \ III _� 1 I \ 11 } 7. All precautions shall be tatiPn by the Contractor prevent sand and mud from entering the ''/ �� � I S - _ / \ - / ' i I pipeline during construction. Upon completion Hof the work,the contractor shall brush and' v \ _„ -%►�7�i i A z - II clean all lines as required to remove any accum%tlated debris.
1_� / " _ .� VW 1 1 _ _ - I I 8. 'Ilse Contractor shall utilize a low pressure air test to determine theacceptability of the
9 \ ri
I _��-�� _� vi► / _ _ _ _ _ \ I e.=p wt rk relative to being leak proof. Said test shah be performed in the presence of
, - / 1 IItht, Engineer. The Contractor shall be responsible for documenting the test and providing a �S ►�� 111511111111
��1 ER QR cAST / / �\ \ / - _ _ _ _ -2 } i II shed copy of said documentation to the Engineer. The test shall be performed in the ` 4 co
9 _� g'pR 35 p • ,piAM�T B X / / / \\ / _ - / fdlowin manner '
/7
1Ii
J - / } I \ 1g„►' 4 MSS - / / - \\ - �- - - / { ,
t I 53 �� �/ RsER�CE n� .4110 j, . - '` .., "tr ' �•5' MSL / - ` _ _ \ - - \\\\\ \ / I I a) All construction is to be complete with all cleanouts,service laterals,PVC plugs,etc.
SPILLWAY CREST'S �f r•, ESE �� 111
{,. I /t.0•= 87 / _ \ \\ p p g C)s ,
Ts iii
ELEV.V=8.51 MSL I , E�Ctp1-13_0 t r / r f►ST / iiiiiii, \ \ - - - _ _ _ /i \ I I I I in place •-
�, 1 ' E , • .. I 1✓� • I S \ \\ I 1 - _ / / 1 I I 1 - - 1 6) A pneumatic plug shalt installed in the sewer line at the septic tank, thus making for '
trip y / ,� 4"tat $ / _ I 112 sealed line.
rl'Akc„ �t s Ms� I� `_L. _ _ _ ...... _ _ _ /i // / I i c) If the water'table elevation is above the pipe at the lowest t of the sewer line(septic '" r
,�, . ,,����r o - _ - 8. Mst E\11 - - - - - _ _ _ / / i tank area), then the associated hydrostatic pressure for this waiter level shall be
�, ■ _ _ I ;_ // / ,I 1 determined by subtracting the elevation of the pipe (at its lowest point) from the,/ E - - - - - - , / _ - - _ _ _ _ / / / r 1 I elevation of the water table and multiplying this number by 0.44. I i;..
"„.,.,,,,,. .
/ _ - - __FB I o. -$.3' MSL - - - ' / - _ _ - - -; 1 d} Low F� be introduced Into the sealed line until the internal
air shall air pressureF
1 / / / / I� �� ` ! - - - _ _ _ - - / _ _ / - - - -111 reaches a value equal to the hydrostatic pressure (from"c" above)plus 4 psi_ t1.� y
/ �E .�� - , / - - - / / - - / _ _ /1 0 The air pressure shall be allowed to stabilize at no less than the hydrostatic pressure r5 °`
4 1 / 1' .I(o - - - - ?'� ',; - _ _ _ - ' - / - \ ( - I plus 3.5 psi. 0 WOMB ,:
" �, 1 E 11D _ _ _ - - '.�' _ _ - _ - - . I 1) Following "stabilization", the line shall be termed acceptable if the pr assure s not c
.pii'Ii I3 / / - - - - w, / - - _ - _ ` / / / } \ \ N i I drop more than 1 psi within a period of 2 minutes. CJ2 Z 0 I
I l' �� _ _ _ _ RIP RAP BANK PROTECy10N / _ i / :
It)pr \ \ 1 I )s} If the installation fails tcj meet the above requirement, the Contractor shall, at own �,(,jiiiiIII
1rFEI(o1 - -
\ - / / / / / \ \ \ l I I expense, determine the source of leakage, and make any necessary repairs.
? ' - - !I -12 10 9 - - - \ \ / // / - / o� \ \ \ \ - -' / 1- - -1.10 shall then be retested following the same procedure. c�
r
RIP RAP BAND,' / , / - sir _ \ / / / / \ \ Il V
4,,,,-, - PROTECTIorr - _ j
i 1 I / / glox5;,:„ ,-,::,: ELEV.OF CREST OF DIVERSION ' ' \ 9 \ \ / / / /�ASL / / BASIN in / I I I / / / / / \ l ."11 1:',„:
(SEE SHT.2 FOR _ r; r L /
SPILLWAY 8.1'MSL t \ r / BASIN�ATA) - ,rr�i ELEV/01% C/R�ST CIIVERSION SPILLWAY= 8.8 MSS / I / / !!ma� y
.� .2 MSL \ l / , 8 / r l I l r / I / / \ jr co '°,
�CONTOURLINE \ 1 9 / / / / / / / ' / / / / / \ Z '
\ \ / ' 3 / ) / / / / t m
( \ - - _ _ - Iu / / / / / / , ` , / _ \ PAR R SllaiN l_+ F* ' W . II lA ..... . . t ►a_ Q o Vim.
,, SEE SHT.#2,FOR DETAILS \ \ \ / / / C
ce. 4
Ot=DIVERStDN SPILL WAYS.) . ��- ' \ --L," \ \ \* I / �� / t l 12 Is ///// / /// / r / // / / / 7 \ \ r • 1j "�
f • TilkA 3u_ _. . !_ i ��
) ` I 1 ( \ /I 15 / / / , / // I ' , / / / , / - 1 i 4of
.: ' \ - / / i \ / / / I rhe "Tripartite Agreement" between The Beach at Brick Landing, ,
S' \ \ - \ _ - _ / / / \ / / / _� 1 ,
` �p \ \ - / / / / // \ \ / / / / / / „ I I Partnership (Developer), the Brunswick County Health Department, r
Tom' '` \ - _ _ , , // \ \ , / / / , / / / I/ and The Beach at Brick Landing Homeowner's, Inc, sets out the
'., (SEE SH \ \ \ - - i / �' / / / l 1 t
;:.i
w, > BASIN taATA) \ N / / \ \ / r / \ \''t.. / I 1 I responsibilities for wastewater system operation and maintenance. 0- _ \ \ \ MIN.EF EV.T tSF Ftlut 9.5'tit \ \ / .�•
t INN ply.T6P OF �' - , N / / / \ \ / °) \0/ /',�/ / 1 I This document was executed tart' authorized persons of the i k :;-):
\ v / / / i v � ' A' R; =a7' tsl. e \ \ - - - - - / / , /1 1 1 / t)n August 23, 19$9, and thereafter transmitted t0 theN / '/ \ \ / / / ' / \ I / County Health Department. The Developer's address is: .. "' ` ' S �° a ,I
: \ \ N \ / / \ SILT FENCE / / / / / / _ \Dc \ / I ":
N
7 _ _ / The Beach at Brick Landing Associates
A E C L:r li W it ft
\ - , _ _
- - - _ - . (SEE DETAIL) \ _._,t_ _
_ '`� _ - / / / /j / / / / Route 5 Box 107
. _ !-- \ \ / I \ , \ _ _ _ \ f j% \ \ ( r _ _ _ - / /// / t '% / r r / Shallotte, North Carolina 28459 EP 1 '
,! r , r 1994
-------A,____, FEL4cE //i \ 1 I / 1 I ,..„ i /,_ _-_,.. ---- __. -- ..- ---- --- ,..-- -- -- - ',. 01. # :,'*v.5
L..
_______ .
ii, t \
1 _ ._
\ __ _ _ __
. ___ _,
N
\ \ \ \ I - -1 // ; •-"'" ../ / / / / DEM
__ ___#._,_"4/2
1,,,,..1e7, r4ry,., r, r7: r-'\, F.' ,e7,1,,1 ry
__ _
�'�i f' to f � i �► .. .,.. •"^. / f '3§,.
l _ - // / / /i/ �_- _- - _� _ -..-_ � ���." i'd4�ds:-'k� �t 'ice a�1 l�;a, :3r6
11 __ /_� /� �/ - _ - = SPECIAL NOTE: WA�s& ' SHALL i UNDER ALL•SEWER V VICE8 ALL SEWER SERVICES
• " ,\ /\ \L'= _ /�/-- / APPROX LOCATION OF MHW sly, ICE OF CAST I 4i oft LE MN MATERIALS, (SEE DETAIL)IAI1-) B I�WAI t R LINE SHALL BE
�/ DUCTILE IRON SEWER �t� t%TIOlrl$. (SEE I�, THTS SHEET.) 2" WATER LINE SHALL BE fit"'
\ = =-'��/ ENCASED IN CONCRETE FOR A E OF l0'ON E SIDE OF 'ME SEWER SERVICE. 0 S u
' =T�' ER s V Pi AEG AND LANDSCAPE ARCHIT CT E • �y .
f, , C � 'Q fi
I � y2"WAIERLINE 40 20 0 40 80 120 T if �'% i
"," ums RATION- • - .. • •" r. , / W JLL I G. D NI EL & SOCI AT °$t100 lI!trl��ii'C�'i' PARKWAY SUITE 140'4; la MTN. to MIN.` SCALE IN FEET GARY, lYORTli;l€ CAROLING 27s311 t � � � ` ' r
I o C'5 p )'

EROSION CONTROL NARRATIVE EROSION CONTROL GENERAL NOTES STORMWATER INFILTRATION BASIN "1" DATA STORMWATER INFILTRATION BASIN "2" DATA
A. THE BEACH AT BRICK LANDING GENERAL PROJECT DESCRIPTION 1. All construction activities shall be performed in compliance with the Sedimentation Pollution SURFACE AREA OF BASIN>5,900 SF
Control Act of 1973. SURFACE AREA OF BASIN>9,000 SF
The Beach at Brick Landing will be developed on an approximately 7.2 acre tract of land BOTTOM ELEVATION=8.0 FT.MSL BOTTOM ELEVATION=7.2 FT.MSLDIVERSION SPILLWAY ELEVATION=8.8 FT. MSL DIVERSION SPILLWAY ELEVATION-8.1 FT. MSL
located at the intersection of NCSR 1155 and NCSR 1143 in southwestern Brunswick 2. All land disturbing activity is to be planned and conducted to limit exposure to the shortest DIVERSION SPILLWAY WIDTH=20 FT.
DIVERSION SPILLWAY WIDTH= 15 FT.
County. This tract is bounded on the south by the Atlantic Intracoastal Waterway (AIW). feasible time. STORMWATER RUNOFF VOLUME FROM 1.5 INCH RAINFALL= * 3,800 CF STORMWATER RUNOFF VOLUME FROM 1.5 INCH RAINFALL<*4,700 CF .
The initial phase of this project will consist of twelve single family lots and a swimming STORMWATER STORAGE VOLUME AVAILABLE @SPILLWAY ELEVATION >5,800 CF STORMWATER STORAGE VOLUME AVAILABLE @ SPILLWAY ELEVATION >5,300 CF
pool. The developer may in the future decide to expand the project, possibly to include 3. All construction sites and severely eroded areas shall be stabilized by the establishment of a POOL ELEVATION REQUIRED TO PASS 7.7 CFS (Q10) =9.2 FT. MSL POOL ELEVATION REQUIRED TO PASS 9.1 CFS (Q10)=8.4 FT.MSL
multifamilyunits, though no finalplans now exist for doingso. permanentground cover. The Landscaping Planpresented in the plans shall be followed to MIN.TOP OF BERM ELEVATION =9.5 FT. MSL MIN. TOP OF BERM ELEVATION=8.7 FT.MSL
g P g
the maximum extent possible. * *4,700 cf exceeds runoff from the initial project which includes 36,000 sf of impervious area,
An approximately 850 foot long street, with valley curbing, will serve the project. Potable 3,800 cf includes runoff from the initial project which includes 29,500 sf of impervious area, plus runoff from the phase 2 project which includes 14,000 sf of impervious area. g
water supply shall be from the Brunswick County Water System and distributed on-site 4. Where it is not possible to establish a permanent ground cover in a reasonably short period of plus an allowance of 21,500 sf of impervious area for future construction in Basin "1". o
through 6 inch and 2 inch water lines. Wastewater services shall be provided through a time due to seasonal considerations, a temporary ground cover shall be established. The t
central, on-site collection, treatment, and disposal system. temporary cover shall include the planting of annual grasses or small grains. Where the
season or other conditions are not suitable for growing a temporary erosion resistant cover,
The developer of the project is The Beach at Brick Landing Associates, Shallotte, North or where the growth of a temporary grass or grain would be detrimental when considering
Carolina. the requirements of the Landscaping Plan, mulch may be applied. Mulch used alone shall ••,,,,,,
be for the shortest time practical. A temporary or permanent vegetative cover shall be �,9'P
B B . SOILS AND TERRAIN established as soon as conditions are favorable. �� '. �, �,v „ %
..,
Most of the project area is covered with spoil material originating from US Army Corps of 5. Silt fencing, and other temporary erosion control measures as may be necessary, shall be wv v -► o
Engineers' dredging activities of the AIW. The soils in the northern most section of the installed prior to the start of construction. As soon as the area is stabilized, the temporary .• ac
project area, however, belong to the Wando and Blanton series. All soils are excessively measures may be removed. BOTTOM OF TOP OF BERM --�'-f Tto
drained.
6. Topsoil shall be used over unfavorable soil conditions for successful establishment of INFILTRATION BASIN 9.5' MSL 8.8' MSL (CREST) `"' ••..s•••``'°
A topographic map of the area is presented in the design plans. vegetative cover. --
-
-
-
_ _ _ 1
15' a
C. EROSION CONTROL MEASURES 7. Irrigate as necessary to optimize plant growth. 0-4
- STORAGE VOLUME REPRESENTATIVE OF 4)
Land disturbing activity for this project will be related to the construction of roadway, 8. Over the life of the project, the owner shall make periodic inspections to evaluate the success RUNOFF FROM 1 1/2" OF RAIN FALL ,, ii
housing, wastewater effluent disposal fields, infiltration basins, and swimming pool. The in controlling erosion of soils to off-site areas. If areas are found where erosion is taking it...‘
wide buffer area between the disturbed areas and the AIW will provide the primary means for place, the Owner shall take the necessary measures to remedy the situation. (LOOKING UPSTREAM) .�
natural erosion control. The primary method for "artificial" erosion control will be two CROSS SECTION THRU SPILLWAY #1 ..,,a, O
permanent stormwater infiltration basins. As presented on the plans, drainage from most of SCALE: 1"=5'
the disturbed area will be directed to these basins. Aside from these primary means of �, (I) 0
erosion control, the layout of the project lends itself to the effective use of silt fencing. -
The primary method for preventing erosion on a short term and long term basis shall be r 8.8' MSL (CREST) ,,,
temporary and permanent ground covers. A detailed landscaping plan (see plans) shall be FLOW
.. followed to provide aesthetic appeal as well as to minimize erosion over the life of the I t, 8.2 MSL e 0 8
project. `-GRADE SHALL BE 2.0° TO POINT OF •*y
TIE-IN TO CHANNEL UPSTREAM .r
D. DESIGN BASES SAFETY FACTORS ---SEE PLAN FOR GRADE FROM ' ` I
8' ti�aX I THIS POINT DOWNSTREAM g
Due to the probable expansion of the project in the future, the stormwater collection, VARIABLE AS DIRECTED BY THE ENGINEER ; 4
transportation, and infiltration systems were designed with significant safety factors. LONGITUDINAL SECTION THRU SPILLWAY #1 2 r4
Specifically, the hydrology and hydraulics calculations for the drainage area of catch basin t,� --� . . - SCALE: 1" =2' "� V 44.
number 1 were performed assuming an eventual impervious area 100% greater than that cf 1 fr
the initial project. Likewise, the calculations for the drainage area of catch basin number 2 - I\ \ �■� �F � �� ��. ' i�1
wereperformed assumingan eventual impervious area 112% greater than that of ,lie inititl MIN. 10 GA. il�� , > � \MIN IZh G4
� P -� .\ ,�r� s� , o:•:: 111 INTERMEDIATE G
Further, the infiltration basins were designed to hold over twice the volume of LINE WIRES `\ �� \ -: ,;.::/,s1 I WIRES
project. g ' � �,
runoff as required for the initial phase by Stormwater Regulations. �„< .ter, _� ' ti s.i'MSLOS i6.4
• \ k� >x" 9.0'MS
c�; ,�.�,' j� ti �Q x Y�:�\^J ��,$, L 8.1' MSL(CREST) :.
kji
i a Qf. r4 ss ' `�.•, ° ` s. .' 11- �\ ''' �:<; GRADE _ CS
•tci Ifi. �y . ' �1 ' It '_•I�-
i g (LOOKING UPSTREAM)
CROSS SECTION THRU SPILLWAY #2 en
x`'j SCALE: 1"=5'
FRONT VIEW
CONSTRUCTION SEQUENCE --- -- :--STEEL OR WOOD POST �
1. Construct construction entrance. WIRE FABRIC 5' N
2. Construct silt fencing at locations shown on the plans and at other 4
co
SILT FENCES _��i �8.1' MSL(CREST) /� • d•
locations as necessary to prevent "sheet" erosion. SILT FENCE FYBFIC t 1 ,
�� � (BURLAP ONLY IF LIFE OF FLOW_, r ,
3. Construct stormwater infiltration basins. 1. Install silt fences as shown on the drawing and at 'i ' 1 PROJECT IS LESS THAN (-7.4'MSL
4. Perform rough din of roadway. I 4 MONTHS) --- -GRADE SHALL BE3%TO POINT OF ^ c)
g grading Y locations necessary to control siltation of adjacent , I y ��1 a)
5. Construct open channels and diversion spillways. 1 I t- TIE-IN TO CHANNELEUPSTREAM V1
6. Construct water and wastewater facilities, areas. FOR REPAIR OF SILT FENCE -0 I p flit SLOPE
2. Where woodenposts are used, theyshall be a FAILURES, USE No.57 1 1 3 (----SEE PLAN FOR GRADE FROM W
7. Perform final grading of general terrain. wasHEo STONE •� cn
minimum of 3" in diameter and 6' in length.. Posts N THIS POINT DOWNSTREAM
8. Seed and mulch denuded areas.
shall be creosote or pentachlorophenol treated `r
9. Perform final grading of roadway and prepare subgrade. t�
10. Construct slotted vane.drain,place base material and pave roadway. co
southern pine. I GRADE
N
11. Proceed with construction of residential units, recreational facilities, 3. Where steel posts are used, they shall be 5' in height •x. LONGITUDINAL SECTION THRU SPILLWAY #2 FW •
6" MIN.COVER OVER SCALE' 1"=2' C
landscaping,etc. and be of the self-fastener angle type. W '�' ';; SKIRT- -
4. Woven wire fencing, where used, shall conform to ANCHOR SKIRT AS NOTE: VIGOROUS STAND OF LOW PROFILE GRASS(ES) SHALL BE MAINTAINED Z U
12. Maintain temporary soil erosion control measures until permanent
ground cover is established. ASTM A116 for class 3 galvanizing. Fabric shall be a c.✓.� '± DIRECTED BY ENGINEER ON SPILLWAYS AND OPEN CHANNELS AT ALL TIMES. MOWING SHALL BE C /""�
minimum of 32" in width and shall have a mimimum of '" SCHEDULED SO THAT HEIGHT OF GRASS DOES NOT EXCEED 2". �/� v
6 line wires with 12" stay spacing. Wire fabric shall VL Z °
fastened to .wood posts with not less than #9 wire SECTION VIEW INFILTRATION BASIN DIVERSION SPILLWAY SECTIONS w z
staples 1-1/2- long. a5
5. Burlap shall be 10 oz. weight and shall be a mimimum ° ,
of 36' in width. SILT FENCE DETAIL 0 2
6. For repair of silt fence failures, use no. 57 washed
stone. NTS � z
rn5C'' Matt '`' H
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a• . • 4. •,*et , • •A••
•' < < Z - • at p Ofi w iC 7 F. OF 4 z m
• • e� PROPOSEQ! STREET, O
£aCaSTiNG b t ' t • ' • •• • f el 1�t MttHEVER IS
RQ,j40yt'AV • Aec c ` c • GREATER C 0
a. v/
s ` • ;• , - •- .y,t • '( • MAINTENANCE OF STORMWATER FACILITIES __... a�
1 . Following each rainfall exceeding one half inch, and at least on a monthly basis,catch basins, /;� 4.•-•' ' ' m-. �,-= � "'°' all �alr'�la:- c
t , : ;I -. ;�.; +ems , a f , I-aq 41n�l'
spillway structures and the infiltration basins shall be inspected. Maintenance activities shall ( i,,;;;t t!,'.i 4 k, -•••,- , . = ` O = c0
include the following: \ a a ._ 0 2
PLAN g �,;'t 1,t:I i i i k I 1lib. , uni Iil►-F ilm
a ,t ;;
i l i tl , . a'nrr'r \ ir _��►' "�'r�'' r art' rrF gym" ; I ;
• , ,t . : . -, 'aelarl rear aapr Ileearl,4 t nM1
- removal of sediment from catch basins �'+--as•k � " s ` .. *** 0 °IIIIM 801
CAST IRON P '_:. ... _. _ r._�. .. - _,.. a .. . ..,lo,
- removal of all debris from the spillway areas to facilitate unobstructed flow over the FRAME&GRATI=••-••--••-•----••---.-_.. _ _�___. __.
spillways;
- maintenance of a healthy ground cover on the spillway and dike areas;
le 35' MIN. _ Is' um. - stabilization of any areas exhibiting soil erosion with a suitable vegetative cover, erosion
EXISTING
ROApwAY blanket, riprapother pro, andforblems paveasmentmay asbe necessarynecessary to eliminate
tooptimize theperformance potential for erosion;oftheInfi
and, ivu---u--13-11-utl-a-a-A-1111--u--11-11-U R 11 I'1 1 11:�
•
NEW CONSTRUCTION ltratton
6 MIN •. .,, • 4- sue' • •:AO'. -,• t2' M'"• basin and hydraulic structures. fillial ,:
2. On a semiannual basis the bottom of the infiltration basins shall be restored to a level plane at
the elevations presented on the plans.
CROSS SECTION ---- •-..•_.._ ._ _ . . . _ - . - - -
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SURVEY FOR
Certificate of c15D. ALBERS �� �,� SEA CH A T ER/CKL.QND/NG ASSOC.
,� �_ to ar v- h BEMs AN At)OITgM TO
.�► ,0.5 k-� fu '-� �/ �,: ,.t.1 REHAR THE BE;L,-I A T BR`CKL A ND/NG
i be co��gct. W ! SNALLOTTE T
IC-'. SLc_ o'elo k `� M W • WP, BRUNSWICK COUNTY, N.C.
• t * SC.LE i•' • 50 ea•s3 or w ►� z` A{♦i MARCH 23r 1994
ti N i J`
L`.}__( day of l'' 19 p / �_ o , 4 �' / •' ` �2 i m J 25 Sv k>_
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; NOTc: PROPERTY IS LOCATED IN A SPECIAL FL000 ZONE
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` Y �_^ «� `i .7. OF THE COUNTY 1?M+T t11i t THAT
� 2 � �.- �- l3- F � � PARCELS OP
.w- - - ROBERT J. 'IZOBINSON ��•,
BRUNSWICK COUNTY RE(,ISTER OF DEEDS
( JAMi1ES TOMP}iRm. R11, / L-E/Si
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w /1N�• r E'r 'f . 'h,Gr '^u5 M41-' AA\ .•ti4,4% yf Mf fNv*1 AN 44. ' •4, .Sl/N:E, it:4CISIF*4 7 ‘ ,Y, • 4 A r •A,N r. v_,v'r. ..rd _ v_ .• :• rt ✓4I1E45r(, vfU.NceUr c t1OMLEDGES' T'/A7 'NE 1 O yiN(}W4
rr- .•E\C'i' ' .n4 NE c,.r)UEO v :>E E0 tioox -, PA(af _ , T NAT THE
L 1 vvTARr �g AL il ,� •tiE c < v ', and -aTE AF, at �a:� � f � ' I r •.,.;r ,�� �� � w 'ti,s q a,- /, ,yr rH/N ENE sue?, '� ',ION AEGUL4T„-,N of tflRfINSWtCY.
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,Oh S 01000 , AND NAT 17 A4.5 DRAWN IN AC COtRDANCE w/TN � J4,WL 5 4 T MP e+ �+ c T t
-: ^+Erg ENE_ [AtiJ S„�'it�ErrjR, '�aScJn,�L ,. % ��NEA rE� , �y_;�9'YIY AND tiAT N/ PI 4h4D 4L�C)TIIENT �5 Mr FREE
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4�IND AND SEAL , TN/S Trie - —OA) OF /41"-2__ , r9 _fst, t� 6�1
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INSTRUMENT. ;YITAESS M. NANO AND OF-FlC1AL STAMP' EAL rva 23 DAY r-MAR. 1994
s i�vjeri,___ „,,,A1ls' . 08t '1 .,'' . ,.- �� owe;
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0 SPECIAL NOTE: The Beach at Brick Landing Associates shall provide or cc
establish the legal documentation and easements necessary for wastewater a o°
0=KNOWN EXIST.PRIVATE WATER system construction, operation and maintenance in compliance with the a
SUPPLY WELL WITHIN 200'OF requirements of the Brunswick County Health Department. This z N W
• WASTEWATER SYSTEMS. documentation shall include but not necessarily be limited to homeowners 2 a, 3 °
IMPERVIOUS AREA NOTES: ( TYPICAL SYMBOL) agreements and associated easements whereby the means is guaranteed for 0 a it
p proper system operation and maintenance where said system is in common xU. rz cr L
I FOURPROJE IF THE RECTANGULAR FERENT STYLES OF HOUSES
WILL
SHOWN ON EACH LOT IS REPRE
SENTATIVE OF TIIYG ownership and/or use. "Common ownership" components of the wastewater cc a a a
NOTE: w w i 1 m
OF TILE LOCATIONS OF THE HOUSE AND THE GARAGE. AN IMPERVIOUS AREA VALUE OF systemshall include: a
SEE DETAIL SHEET 7 FOR ¢
2720 SF WAS USED FOR EACH LOT IN IMPERVIOUS AREA CALCULATIONS. THIS VALUE SEE SHEET NUMBER 11 FOR I w S Y w
REPRESENTS T11E STYLE HOUSE WITH 'TIIE LARGEST IMPERVIOUS AREA,THE GARAGE, - - _ _ CONTINUATION OF WATER LINE LPP FIELD&REPAIR AREA I w - o Q 0 Q
AND AMPLE PAVED DRIVEWAY. THIS METHOD GIVES THE DEVELOPER TIIE FREEDOM TO - - - _ I ( I) 6 inch wastewater gravity sewer; a ? LL 0 0
cl
CHOOSE ANY OF THE FOUR STYLES OF HOUSES FOR ANY PARTICULAR LOT AS i - - - _ _ / - CO I I 2) 4 inch and 6 inch gravity service lines from the point of tie-in to N Z N o
MARKETING CONDITIONS DICTATE. _ - I - - ; _ _ _ - _ I I the wastewater gravity sewer to the cleanout at the end of the g �, H
2. ALL DECKS ADJOINING IIOUSES SIIALI. BE OPEN (NO ROOFS) AND OF WOOD --_ 1_ - - - )� _ I - - _._ - service line; a >
i 1 3) septic tank and dosing tank system; C C o cr
CONSTRUCTION. ALL WALKWAYS BETWEEN TIIE GARAGES AND HOUSES SITALI.BE WOOD �_ --/ -
- SR - - - _ _ _ 0 0
"DECK"CONSTRUCTION. CONSTRUCTION ENTRANCE ` I - _ _ I15 5- I _ - _ _ _ / I 4) 3 inch dosing mains; and, _ . �' o �'
• I 5) low pressure pipe wastewater effluent disposal fields. N '^
(SEE DETAIL) , _ _ - _ _ _
l \ \ — — — I The easements and/ or other rights shall be retained and/or granted as
WATER TABLE NOTE: 1-s'•GATE VALVE& BOX /0 I _ _ — \ I necessary for all parts of the "common ownership" components, including
0 _ _ - — — — — — — — — _ \ I those parts located on or between residential lots. ,,-- i'`==�,;.
I
THE ELEVATION OF THE WATER TABLE AT INFILTRATION BASIN #1 WAS MEASURED AT 4.9' ;ig`�, , - - - I :'.\�.�` J.�
MSL BY THE ENGINEER ON 9/28/90. THE ELEVATION OF THE HIGH WATER TABLE AT
INFILTRATION #2 IS APPROXIMATELY 4.5' MSL BASED ON FIELD INVESTIGATIONS BY THE / Z - / I /' J ` ; J \ I F.� o�Q� �`<
ENGINEER AND A 2/22190 FIELD INVESTIGATION BY MR.VINCE LEWIS,DEM,NCDEHNR. 0 a /.._- , I I I =�Y=„ - :. c 5?
19 -- o / I I I ",'`mob �Z`C
0 , i; I I I '%��L +s
- _ - 18 ` ' ill0 REPAIR '� ,J / I I WORK IN AREAS OF EXISTING UNDERGROUND UTILITIES: The locations '
00
RUNOFF FROM THE ALL ROOFTOPS AND OTHER IMPERVIOUS I So AREA#2 J� / I I shown for existing underground utilities should be considered as
00
SURFACES ON THE SINGLE FAMILY LOTS SHALL BE DIRECTED REPAIR /J I i approximate only. The Contractor shall be responsible for field location of all CA
TOWARD THE ROADWAY. WHERE THIS REQUIREMENT CANNOT :IA#1 II underground utilities whether or not they are shown on the plans. Any N
BE MET BY GRADING, IT SHALL BE ACCOMPLISHED BY _/ I I damage to underground utilities shall be repaired to the satisfaction of the 4.)
GUTTERING AND/OR OTHER APPROVED DRAINAGE MEASURES. 17 - I 1 utility owner, and all costs associated therewith shall be borne by the
oIIContractor. •~164.............._______
\Alai1 Iyro - - //j� ® q DOSING MAINS SHALL PASS UNDER I4it ''y
\6 _ o \ WATERLINE. DISTANCE BETWEEN I (n C
I''' CA8
BOTTOM OF WATERLINE AND TOP 77
II �' - _ _ _ _ _ _ \� ^� _ _ - - _ \ � OF DOSING MAINS SHALLBEAMIN. I _ d J
0
- - - IllilL = - - __
;De.OF.
GRAVITYCONSTRUCTIONNOTES4
o
_ p( I r - - - - - _ - 6 I I 1. Pipe installation shall be in accordance with ASTM D2321, and as modified in *d
. _ - 13 / \ \ _ - 1 I these notes. �+ ��
I I \ - �° I I 2. Bedding shall be Class I material with a minimum depth of 4 inches. (See ASTM D2321 P -
CIS
/ I I 1 i for definitions.) — L JJ
• 10-"' - - / i s"PVC ATERUNE 3. Haunching and backfill shall be Class I or Class II material. Where Class II material is_ - - ' - _ - _ _ , - - - _ J / / / - 1 - - 114 used, each stage shall be compacted to a minimum of 95% Standard Proctor. Stages shall v L
PARALEL 3" I-6"x 6" TEE I I 1 include: a) from the trench bottom to the spring line of pipe; b) from the spring line of pipe •�
_ _ _ _ _ _ -,- \ ( DO$ING MAIN / 1 2 s"GATE VALVE BcBOXIII to the top of pipe; and c) each 4 inch increment from the top of the pipe to the elevation of\ (g 'PWO-�' 6" iii, I 6"x 2 2 I/2°BEND the sub grade for the roadway. 14
— _ \ \ \BY CANTRACTOR
- - - - - - - \ \ /R / I 4. Compaction equipment shall not be used directly above the pipe until sufficient backfill has 'i"i
\ / 1 14been placed to ensure that such compaction equipment will not have a damaging effect on
\ / I 13 \ / MANHC/LE#1 I I I I the pipe. po G��
9 --- - _ h" \ / s I I I 5. Each joint of pipe shall be bedded true to line and grade with uniform and continuous r-»
_ - _ - _ _ - _ \ / I \ / ( EE PF�OFILE S. I support from a firm base. Batter boards and stringlines, or laser beams shall be
_ MANHOLE#2 e I I �1
_ / 12 1 -2"GATE VALVE&B•X I (SEE PROFILE) \ \ I I I used. The Contractor will be required to furnish the detailed stake out for guidance of the �4Cd
1 -6"X 2" REDUCER N - pine laying operation.
I s' dLass \ P P
PI
_ _ �LOTTEDVAIN DRAIN / �� 50 pip I I I 6. Tie Contractor shall remove all water enco ' tered in the trenches by pumping, bailing
N 10 1 -6"THRUST COLLAF� RETAIL)
- DOSING TANK \ 1 -FIRE HYDRANT AS 'Y. (SEE / \ \ I 1- - h 13 and/or by well pointing. All jointing of pipes hall be made in a dry condition.
$�� e 5,000 GAL.SEPTIC TANK \i ' 1 -6"TEE ) f���`o � 8 - J �I \` 11 I 7• Al precautions shall be by the Cont ac r to prevent sand and mud from entering the
�► _ II
���lrne dunn construcnon. Upon coma etron of the work the contractor shall brush and
OUBLE SEWER SERVICE G� '�� • I \ -- ' 1 cl+�,an all lines as re ,l&ctEANouT(TYP) ��' I q> edo IerriOve a cumulated debris.
^,; I / \ _ - - _ -. I I 8r The Contractor shall utilize a low pressure air test to determine the acceptability of the
\ 4 vj1 / / \ - _ I I completed work relative to being leak proof. Said test shall be performed in the presence of •
�� ' GRpv►�Y - �. CAST / / / - - 1 I I the Engineer. The Contractor shall be responsible for documenting the test and providing a ,�I N
Pa \ \ I signed co of said documentation to the Engineer. The test shall be performed in the �1 co
9 • I ��� DR 35 P� *FILE) 1JUNI ME71ER / / / - _ _ _ - �\ I I I copy g P
kA I I SEWER(SEEP _ • 4 OtJ t�T10N gpX i - / / \ \\\ l / / _ _ \ 1\ / I fallowing manner: nI5 ��' WER SERV►C% y5.TY• TERUNA „ . _ " HELiCA tt.- g 5 MSS► / ` in
/� / \\\ /- \\I\\ \ \ II
t.EA�o� ' p " PPE'pJ;CH r /t,0.= / _ \ 1 _ - _ _ _ /I \\ I I All construction is to be complete with all cleanouts, service laterals, PVC plugs, etc.,iik
SPILLWAY CREST _ IAGt-E YP) VC WA u y g X g•?' - - \ / a)
ELEV.=8.5'MSL \•-r----
j , >S.0 � fly S1 I l ` III in place. •�
T
/ CA / S \
'� -T.,F / COMMIE / FF F \ �\\ 1 I - / I I 1 ,L - _ I b; A pneumatic plug shall installed in the sewer line at the septic tank, thus making for a
r�tAm.I *VII O 4'D1A ot1e I -
/� / / 12 sealed line. T�
— �► / e e. Mst- ( 1 g- I� �`___ _ __== /i // I I II I c) If the water table elevation is above the pipe at the lowest point of the sewer line (septic P 4 0)
t.t.
BLOW-OFFMill ��� M ° a.5' MsL �1%1✓\ _ _ _ _ - _ _ / / / tank area , then the associated h drostatic ressure for this water level shall be `n
y p
■ �� - - - - - to.,
! ' - - // / I I determined b subtracting the elevation of the pipe at its lowest point) from the N
to Ai
•F 17 - _ - _ - _ , _ _ - - _ / /I I elevation of the water table, and multiplying this number by 0.44. p )vi I d) Low pressure air shall be introduced into the sealed line until the internal air pressurell.lc// / / _ - fFB_ I� 1. 0. = 5.3. MSL - - - �/ Ilo - _ _ _ _ _ _ - - - - I I reaches a value equal to the hydrostatic pressure (from "c" above) plus 4 psi. LLB o/ 1(� 1%F E_ .�`� - - - - - _ / / - _ I I e) The air pressure shall be allowed to stabilize at no less than the hydrostatic pressure c Z
cz
, t / I I / 1✓ $ /1 _ ( I
I lus 3.5 si. y — U
I �� . I(v - _ ti'g{,; _ \ I I P P
_ _ _ f) Following "stabilization", the line shall be termed acceptable if the pressure does not '^ 0
/ 1 �� l� i 3 _ / - _ _ _ \ \ \ \ I I drop more than 1 psi within a period of 2 minutes. V1 Z 0
P.F.E, I� _ - - _ .. RIP RAP BANK PFOTECTION r , _ _ _ / - \ \ I I g) If the installation fails to meet the above requirement, the Contractor shall, at his own CrW z
N
8 5r.E Kol —
• 12 — — — — — r / / / 7 — N / / / N \ \ \ _ I I expense, determine the source of leakage, and make any necessary repairs. The line V1 �,
I ' - I0 - \ // / / - / \ \ \ - I- - -1.10 shall then be retested following the same procedure. o
RIP RAP BANK / , 9 7 ' _ _ \ 1 / / i \ \ \ 11 V
PROTECTION e dillib•- i _ - - •_ _ _ J 1
„� ��,,, IO \ / / IDIfILTRATIQII� "'^', \ / / / / - \ ~j t'-
ELEV.OF CREST OF DIVERSION ' \ 9' \ ( � ' / / / %I�ASL )3ASIN#1 - \ I I I // / / / / \ FF��� J
SPILLWAY=8.1'MSL \ ` r (SEE SHT. 10 FOR _ _ �,� / I I / / I N
/ BASIN�A�4) /,/� ELEV OF CREST(0 61VERSION SPILLWAY= 8.8 MSL / / x
f7�2MSL \ / / / 8 / , / / / / I / / I / 1 \ (/) O
CON�O\RUNE \ \ / i 9 / - 1 / / / / / / / / / / \ 4 z CO
3 /
4/7..._
(SEE SHT.#10 FOR DETAILS \ \ \ / / j _ p / / / /
OF DIVERSION SPILLWAYS.) -7.rMSL-Z, \ \� I / a / — — �I / / / / ///I/ // / / / / / / - \ \\ PARTIES RESPONSIBLE FOR WASTEWATER SYSTEM C 0
\ \ I / \ I{ I,-
12 / / / / / / / / / / / / OPERATION AND MAINTENANCE U _
I ( i 15 / / / / / / / - \
\ \ N ' \ // / / / / . \l I 1 Tie "Tripartite Agreement" between The Beach at Brick Landing,
8 JNFlLTRAT _ - - / \ \ / / / / / I I Partnership (Developer), the Brunswick County Health Department,JHT.I0F2 I' \ \ \ \ \ N - - _ _ _ - / / / / // \ \ ' / / / / / ` II I I and The Beach at Brick Landing Homeowner's, Inc. sets out the(SEE BASIN DATA) \
�. • _ \ \ \ \ \ MW.ELEV.TQP6FE3 F�tf+A�95' MSL / \ \ / / r /\\ /\� / I I responsibilities for wastewater system operation and maintenance. C
2
MIN. ELEV.TOP OF - r / / \O/ / / / III I / Ti is document was executed byauthorizedpersons of the Developer
N / \ \ 3 p co
BERM s.7'MSL e - \ _ _ _ _ - - / / _ / / / / z \ / II 1 1 / or August 23, 1989, and thereafter transmitted to the Brunswick T-
\ / / \ \ / / / \ rn
\ N / / / / \ SILT FENCE ` / % / / // / /_ _ _ \Dt \ ) /I I ) // County Health Department. The Developer's address is: �t
\\ \ _ - _ - IU6ITORING WELL 7 - _ N _ _ - - / / _ - _ - -
_ _ ) \ _ _ _ _ _ / /r/ / The Beach at Brick Landing Associates
SEE DETAIL \ - /
� � _ \ / I � - . � _� � \ � � � � ' / / � � / � - - - - - - / / // /�/� / � 7/i / /� / Route 5, Box 107
� \ �� \ I - � - _ - - � / \ / / // �� �i / / /
- ......
- \ - - - Shallotte, North Carolina 28459
I I \ \ \ / \ l \ r - _ / /// %�- �7 7 / // /
\ LT FENCE / jl I \ \ \ \ / / \ \ I / I ,\ /// i %�� i 41111'i i
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- i i / i i --.----/-------.----- ice" _ `..�,
1 - _ i � � - _ 4 SPECIAL NOTE: WATER LINE SHALL PASS UNDER ALL SEWER SERVICES. ALL SEWER SERVICES
11.
\ l/ \ r - - ,' _.' � APPROX LOCATION OF MHW SHALL BE OF CAST IRON OR DUCTILE IRON MATERIALS. (SEE DETAIL.) 6" WATER LINE SHALL BE
\ \\ \`=- _ �,�'� � .- DUCTILE IRON SEWER SERVICE LOCATIONS. (SEE PLAN, THIS SHEET.) 2" WATER LINE SHALL BE CI E M +
9or a�a
:9 91: 1
��� -'� ENCASED IN CONCRETE FORA DISTANCE OF 10' ON EACH SIDE OF THE SEWER SERVICE. � Q� �' —' (�
SEWER SERVICE
CONCRETE PLANNING AND LANDSCAPE ARCHITECTURE
2"WATER LINE 4 0 2 0 0 4 0 8 0 12 0
: ILLUSTRATION-- /'' ' ° • `�'• co
_
WILLIAM G. DANIEL & ASSOCIATES �«- I Y
PIIIIICIII.1.1111111 _ co+ 8000 REGENCY PARKWAY SUITE 140 mc e
Y
To'MIN. \ To'MIN. ` SCALE IN FEET CARY, NORTH CAROLINA 27511 ,_ 0 .. Q t
COPYCAT TECH SEPWV,CE`, .

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EROSION CONTROL NARRATIVE
EROSION CONTROL GENERAL NOTES STORMWATER INFILTRATION BASIN "1" DATA /\ STORMWATER INFILTRATION BASIN "2" DATA a 0 w
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LANDING GENERAL PROJECT DESCRIPTION 1. All construction activities shall beperformed in compliance with the Sedimentation Pollution o m
A. THE BEACH AT BRICK F Q SURFACE AREA OF BASIN>9,000 SF SURFACE AREA OF BASIN>5,900 SF
Control Act of 1973. ►- Z o
The Beach at Brick Landing will be developed on an approximately 7.2 acre tract of land BOTTOM ELEVATION= 8.0 FT. MSL BOTTOM ELEVATION=7.2 FT.MSL o �
2 vi
located at the intersection of NCSR 1155 and NCSR 1143 in southwestern Brunswick 2. All land disturbing activityis to beDIVERSION SPILLWAY ELEVATION= 8.8 FT. MSL DIVERSION SPILLWAY ELEVATION=8.1 FT. MSL w a a
planned and conducted to limit exposure to the shortest DIVERSION SPILLWAY WIDTH= 15 FT. DIVERSION SPILLWAY WIDTH=20 FT. w cc 15
County. This tract is bounded on the south by the Atlantic Intracoastal Waterway (AIW). feasible time. STORMWATER RUNOFF VOLUME FROM 1.5 INCH RAINFALL= * 3,800 CF STORMWATER RUNOFF VOLUME FROM 1.5 INCH RAINFALL= *4,700 CF cc -I a
The initial phase of this project will consist of twelve single family lots and a swimming STORMWATER STORAGE VOLUME AVAILABLE @ SPILLWAY ELEVATION >5,800 CF STORMWATER STORAGE VOLUME AVAILABLE @ SPILLWAY ELEVATION >5,300 CF o z a
pool. The developer may in the future decide to expand the project, possibly to include 3. All construction sites and severely eroded areas shall be stabilized by the establishment of a POOL ELEVATION REQUIRED TO PASS 7.7 CFS (Q10) =9.2 FT. MSL POOL ELEVATION REQUIRED TO PASS 9.1 CFS (Q10)=8.4 FT.MSL
multifamilyunits, though no final plans now exist for doing so. permanent ground cover. The Landscaping Plan presented in the plans shall be followed to MIN.TOP OF BERM ELEVATION =9.5 FT. MSL MIN.TOP OF BERM ELEVATION=8.7 FT. MSL N z a
r) a 0
the maximum extent possible. *4 700 cf includes runoff from the initial project which includes 29,700 sf of impervious area, ° >
* 3,800 cf includes runoff from the initialproject which includes 25,600 sf of impervious arca, ►_
An approximately 850 foot long street, with valley curbing, will serve the project. Potable p plus an allowance of 33,300 sf of impervious arca for future construction in Basin"2". ' c) 0
water supply shall be from the Brunswick County Water System and distributed on-site 4, Where it is not possible to establish a permanent ground cover in a reasonably short period of plus an allowance of 25,400 sf of impervious area for future construction in Basin "1". o w m
through 6 inch and 2 inch water lines. Wastewater services shall be provided through a time due to seasonal considerations, a temporary ground cover shall be established. The 5 o 0
central, on-site collection, treatment, and disposal system. temporary cover shall include the planting of annual grasses or small grains. Where the U G
season or other conditions are not suitable for growing a temporary erosion resistant cover,
The developer of the project is The Beach at Brick Landing Associates, Shallotte, North or where the growth of a temporary grass or grain would be detrimental when considering
Carolina. the requirements of the Landscaping Plan, mulch may be applied. Mulch used alone shall
be for the shortest time practical. A temporary or permanent vegetativ- cover shall be . " 11"4%.
B . SOILS AND TERRAIN established as soon as conditions are favorable. Gov.\-$ ot..
.4 C,
Most of the project area is covered with spoil material originating from US Army Corps of 5. Silt fencing, and other temporary erosion control measures as may be necessary, shall be -cLo S
1?0 £ ''' �' ,
73
Engineers' dredging activities of the AIW. The soils in the northern most section of the installed prior to the start of construction. As soon as the area is stabilized, the temporary y) , y 2�
project area, however, belong to the Wando and Blanton series. All soils are excessively measures may be removed. .
drained. BOTTOM OF TOP OF BERM %.r(1,) .#`r
6. Topsoil shall be used over unfavorable soil conditions for successful establishment of INFILTRATION BASIN 9.5' Ma 8.8' MSL (CREST) ``'`'r'"•,.., I
A topographic map of the area is presented in the design plans. vegetative cover. V_ _ _ _ _ _ _ _ `
qp. 15' -+1 a
C. EROSION CONTROL MEASURES 7. Irrigate as necessary to optimize plant growth,
- STORAGE VOLUME REPRESENTATIVE OF
Land disturbing activity for this project will be related to the construction of roadway, 8. Over the life of the project, the owner shall make periodic inspections to evaluate the success RUNOFF FROM 1 1/2" OF RAIN FALL 1
housing, wastewater effluent disposal fields, infiltration basins, and swimming pool. The in controlling erosion of soils to off-site areas. If areas are found where erosion is taking t,. ♦
CS
wide buffer area between the disturbed areas and the AIW will provide the primary means for place, the Owner shall take the necessary measures to remedy the situation. (LOOKING UPSTREAM)
natural erosion control. The primary method for "artificial" erosion control will be two CROSS SECTION THRU SPILLWAY #1 a Q
permanent stormwater infiltration basins. As presented on the plans, drainage from most of SCALE: 1"=5' Q
the disturbed area will be directed to_these basins. Aside from these primary means of in
erosion control, the layout of the project lends itself to the effective use of silt fencing. S.
(Dr,,,,
The primarymethod forpreventingerosion on a short term and long term basis shall be 8.s' MSL (CREST) ig
temporary an permanent round co rs. A detailed landscaping plan (see plans) shall be _ --may 2 FLOW 0 g
0
followed to provide aesthetic appeal as well as to minimize erosion over the life of the s. MSL i
GRADE SHALL BE 2.0%TO POINT OF .ry _
project. TIE-INTO CHANNELWPSTREAM -- - --�f *�
D D . DESIGN BASES SAFETY FACTORS C - SEE PLAN FOR GRADE FROM 0 ©
8' ti,Ax. 1 THIS POINT DOWNSTREAM
VARIABLE AS DIRECTED 6Y THE ENGINEER
Due to the probable expansion of the project in the future, the stormwater collection, Al roil' transportation, and infiltration systems were designed with significant safety factors. I LONGITUDINAL SECTION THRU SPILLWAY #1
Specifically, the hydrology and hydraulics calculations for the drainage area of catch basin ------- - SCALE: 1" =2' V M
number 1 were performed assuming an eventual impervious area 100% greater than that cf ��. . �4•/;: <<�,:,I �� *~
drainage area of catch basin number 2 �- \= ' a' �S:;;�;r�
the initial project. Likewise, the calculations thefor g
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were performed assuming an eventual impervious area 11.2% greater than that pi ",he initit 1 MIN. 10 GA. `� s `;!�; d;' . F\,MIN 12)2 GA
project. Further, the infiltration basins were designed to hold over twice the volume of LINE WIRES <,, ;,,'�,- -;:-✓INTERMEaATE .-��y,�
project. , �` ;,, x WIRES R�1
runoff as required for the initial phase by Stormwater Regulations. 4.i� �+ % � ' �?V
• �� ��:�$ .. �'\•;��.,, 9.1'MSL
cd ,:,
_`: '</4, . hr� ' �e : ; •.�.,> .>:.:� 9.0' MSL 8.1' MSL CREST)
•k\ .: ::•;-::-.,,-..›,.fk//'�. `�', ::`'^; \ :fir ,.'.`�.;:-s
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f\ : .. . , 4'�.>` °i GRADE i
• yam'" ;v =' ,s 4
40 z'4• KV: >•... .Y;: .
1 4*C', 0:1 2
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M511,1j,Qk;' (LOOKING UPSTREAM)
CROSS SECTION THRU SPILLWAY #2
• SCALE: 1"=5'
FRONT V -
. IEW
CONSTRUCTION SEQUENCE ,. -STEEL oR W000 POST
iWIRE FABRIC �. 5' N
1. Construct construction entrance. ro
2. Construct silt fencing at locations shown on the plans and at other SILT FENCES ' 4
is SILT FENCE FABRIC �8.1' MSL(CREST) ^^ �
locations as necessary to prevent "sheet" erosion. - I; I F�
FLOW, u7
�,�,• (BURLAP ONLY IF LIFE OF �
3. Construct stormwater infiltration basins. 1 . Install silt fences as shown on the drawing and at 'j�} PROJECT IS LESS THAN ,7.4' MSL
4. Perform rough grading of roadway. 4 MONTHS 1 2-GRADE SHALL BE 3%TO POINT OF
. locations necessary to control siltation of adjacent ' � - � �
5. Construct open channels and diversion spillways.
6. Construct water and wastewater facilities. areas. FOR REPAIR OF SILT FENCE O o FILL SLOPE TIE-IN TO CHANNELUPSTREAM
2. Where woodenposts are used, shall be a FAILURES, USE No. .9 � I 3 SEE PLAN FOR GRADE FROM
they w'ASHED STONE }
7. Perform final grading of general terrain. N I °'
minimum of 3" in diameter and 6' in length., Posts I THIS POINT DOWNSTREAM Ln
8. Seed and mulch denuded areas. _
9. Perform final grading of roadway and prepare subgrade.
shall be creosote or pentachlorophenol treatedco
10. Construct slotted vane drain, place base material and pave roadway. southern pine, I 'I GRADE (� N
• LONGITUDINAL SECTION THRU SPILLWAY #2 � W �
1 1. Proceed with construction of residential units, recreational facilities, 3. Where steel posts are used, they shall be 5' in height • ' {` 6" MIN.COVER OVER W c
and be of the self-fastener angle type. W SKIRT* SCALE: 1 =2 0
landscaping, etc. L ,. ��
4. Woven wire fencing, where used, shall conform to to ANCHOR SKIRT AS NOTE: VIGOROUS STAND OF LOW PROFILE GRASS(ES) SHALL BE MAINTAINED Z
12. Maintain temporary soil erosion control measures until permanent g.
Around cover is established. ASTM A116 for class 3 galvanizing. Fabric shall be a ( DIRECTED BY ENGINEER ON SPILLWAYS AND OPEN CHANNELS AT ALL TIMES. MOWING SHALL BE O U
minimum of 32" in width and shall have a mimimum of SCHEDULED SO THAT HEIGHT OF GRASS DOES NOT EXCEED 2". T^ 0
6 line wires with 12" stay spacing. Wire fabric shall (f,1 °
fastened to .wood posts with not less than #9 wire SECTION VIEW 0 INFILTRATION BASIN DIVERSION SPILLWAY SECTIONS W Z
staples 1-1/2" long. °
5. Burlap shall be 10 oz. weight and shall be a mimimum
of 36" in width. SILT FENCE DETAIL 0
6. For repair of silt fence failures, use no. 57 washed u)
stone. NTS ,-- __' - -- - A - BT A z v�
B'I r. -II- - f -- •i( _ ,1''j ' 7 Z �� _
50 MIN. 1 _l - ---i N
ill-
I
e 6u�ooe O
i; • ' . �• . ` • .t.•�• 25 ORIw1OTH OF O
4,° . . '2 •. a , . " t �II PROPOO STREET, 54. SHEAR LUG -, 4 z° ' o WHICHQvER IS r 6"
EXISTING 9 :a o 1 0 �`_- - - --" - -`,' -
ROADWAY I ABC � . • c t GREATo ; ^ C O
6 • • c Tk' 0 o c ' c; SECTION B B
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;4,o°,• •, • •✓ - . . . 4 !".• 0"
•.°•
, ; ••,.,.• MAINTENANCE OF STORMWATER FACILITIES ,5 DIA.SDR-35 �'
v t. •• •.
FC\• 4. t SEWER PIPE (73
,��
1 . Following each rainfall exceeding one half inch, and at least on a monthly basis, catch basins, c_
spillway structures and the infiltration basins shall be inspected. Maintenance activities shall ., C p y F SECTION MA •-i_
PLAN include the following: 2
r
- removal of sediment from catch basins .c,,
- removal of all debris from the spillway areas to facilitate unobstructed flow over the \ '
pWIRE CASTING SECURELY TO THE PIPE / f
spillways; \� : "?
- maintenance of a healthy ground c< ver on the spillway and dike areas; PAVEMENT
EXISTING 35' MIN. I5 MIN. NE CONSTRUCT+oH - stabilization of any areas exhibiting soil erosion with a suitable vegetative cover, erosion / � �, • ,
blanket riprap, and/or pavement as Iecessary to eliminate the potential for erosion; and, ,, i �,. ,r
ROADWAY _ e .. -C--- •---`.4
-.4' J,',
((( - correcting other problems as may br necessary to optimize perfornrance of the infiltration ` �` s�, - , ,
le
6" MIN. / r '>e :4• 5'`••• •:4 ;' " "Jt.itS� I �C,, ci
. : . . I ,' �,+N basin and hydraulic stnicnires. � _ y. �' � -�
2. On a semiannual basis the bottom of th infiltration basins shall be restored to a level plane at j '- 6 cMINIMUM)CONCRETE ENCASEMENT
SIDES AND BOTTOM
the elevations presented on the plans k, '- � j
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CROSS SECTION � � PIPES. 0,246GRADENJER
//K PIPE SETC24;GRADE
1 _ ,,tv-" 4;,;, / _ _--- -- BLOCKS TO ADJUST PIPE TO GRADE AND
1`\ %.•.-"yk.,� - ASSURE 6"OF CONCRETE ENCASEMENT
✓� ¢�°' - BENEATH THE PIPE
CONSTRUCTION ENTRANCE ' .s� ;-_ _
DETAIL C UNDERSIDE OF POSITIONING LUGS
HE CASTING_SLOT CUT LENGTHWISE TO ACCEPT O U
NTS °
. 0 Cr) � _
0 SLOTTED VANE DR AIN DETAIL o m
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COPYCAT TECH SERVICES
89 -0676 - 1

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0 SPECIAL NOTE: The Beach at Brick Landing Associates shall provide or cr
establish the legal documentation and easements necessary for wastewater ,- o
0=KNOWN EXIST.PRIVATE WATER system construction, operation and maintenance in compliance with the v, w °
SUPPLY WELL WITHIN 200'OF requirements of the Brunswick County Health Department. This z a w
WASTEWATER SYSTEMS. documentation shall include but not necessarily be limited to homeowners 2 g o 0
LLJ
IMPERVIOUS AREAIOTES: ( TYPICAL SYMBOL) agreements and associated easements whereby the means is guaranteed for 0 a cr
0 proper system operation and maintenance where said system is in common x U. E cc i°
1. POUR DIFFEREN1STYLI:S OF ROUSES WILL BE CONSTRUCTED AS A PART OF THIS ownership and/or use. "Common ownership" components of the wastewater a o a 3 m
PROJECT. THE RI'TANGULAR "ENVELOPES" SHOWN ON EACH LOT IS REPRESENTATIVE NOTE: system shall include: a w i ¢
OF TIIE LOCATIOS OF THE HOUSE AND THE GARAGE. AN IMPERVIOUS AREA VALUE OF y ¢ Y w
SEE DETAIL SHEET 7 FOR > w
2720 SF WAS USE FOR EACH LOT IN IMPERVIOUS AREA CALCULATIONS. THIS VALUE SEE SHEET NUMBER 11 FOR 1 w .� O Q 1 Q
REPRESENTS THE STYLE HOUSE WITIi TIIE LARGEST IMPERVIOUS AREA,THE GARAGE, — — _ _ CONTINUATION OF WATER LINE LPP FIELD&REPAIR AREA I ¢.z N �. N
rn I 11 6 inch wastewater gravity sewer; . - LL o
AND AMPLE PAVO DRIVEWAY. THIS METHOD GIVES TIIE DEVELOPER THE FREEDOM TO - — - _ - 1 4- 0 ► 'g
- I 21 4 inch and 6 inch gravity service lines from the point of tie-in to N z N o 0
CHOOSE ANY O TIIE FOUR STYLES OF HOUSES FOR ANY PARTICULAR LOT AS j - - - - _ cn I the wastewater gravitysewer to the cleanout at the end of the 0 e "-
MARKETING CONITIONS DICTATE. 7 - - - = O
_ I I - — — — _ _ _ N I I service line; < o w W CC W
2. ALL DECKS ADDINING HOUSES SHALL BE OPEN (NO ROOFS) AND OF WOOD - - - j_ - I -1- _ _ I I Lu 3) septic tank and dosing tank system; o cc o g o
CONSTRUCTION. LL WALKWAYS BETWEEN TIIE GARAGES AND I LOUSES SI IALL BE WOOD - - _ _ S R 115 5 — — — and " �'
_I I _ _ / 1 4) 3 inch dosing mains; ,
"DECK"CONSTRUTION. CONSTRUCTION ENTRANCE "" — — — _ _ _ j - — — I 5) low pressure pipe wastewater effluent disposal fields. " "
-� _ �/
(SEE DETAIL) 1 " - _ \ - - - -r - _ _ I \
— _ _ I The easements and/ or other rights shall be retained and/or granted as
/ ) , — — — I necessary for all parts of the "comma ownership" components, including
WATER TABLE N TE: 1-6"GATE VALVE& BOX e _ _ _ _ _ 1 f ' :rr;,
o I_ — - - _ _ _ \ those parts located on or between residential lots. ,,
THE ELEVATION OITHE WATER TABLE AT INFILTRATION BASIN #1 WAS MEASURED AT 4.9' 14 -- - I I a . Q\, '•�'o
MSL BY THE ENGII`(:,ER ON 9/28/90. THE ELEVATION OF THE HIGH WATER TABLE AT / - - \ s ow 0".:;
INFILTRATION #2 IS (►PPROXIMATELY 4.5' MSL BASED ON FIELD INVESTIGATIONS BY THE / y r- / I i /-`"` ' - 1 'Qic.� """
ENGLvEER AND A 2/ 0 FIELD INVESTIGATION BY MR. VINCE LEWIS,DEM,NCUEHNR. c /,- �; 1 I I !y
19 �, /
i I I I : �. pG�
0
18 REPAIR / WORK IN AREAS OF EXISTING UNDE • GROUND UTILITIES: The locations
18 - - - - - - - > / I
I 1 shown for existing underground u ilities should be considered as
RUNOFF FRO HE ALL ROOFTOPS AND OTHER IMPERVIOUS o \0 AREA#2
SURFACES ON E SINGLE FAMILY LOTS SHALL BE DIRECTED REPAIR _ �J I 1 approximate only. The Contractor shall se responsible for field location of all (n
TOWARD THE tOADWAY. WHERE THIS REQUIREMENT CANNOT AREA#1 — _ _ , I I underground utilities whether or not they are shown on the plans. Any 011)
44
BE MET BY GRADING, IT SHALL BE ACCOMPLISHED BY ! I I damage to underground utilities shall be repaired to the satisfaction of the
GUTTERING A1�IJ/OR OTHER APPROVED DRAINAGE MEASURES. 17 — — — — — — ° IIIII 1 1 utility owner, and all costs associated therewith shall be borne by the ? •�
° I I Contractor. e V
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®° 16 '� r 0 O I I 1-:4
yr o — — — — ��j� ® Q DOSING MAINS SHALL PASS UNDER
\6 _ o \ WATERLINE. DISTANCE BETWEEN I U) �1
— _ \� _ \ BOTTOM OF WATERLINE AND TOP 1 _ b
I I _ _ _ _ — P _ — _ _ _ _ NOF DOSING MAINS SHALL BE A MIN. I GRAVITY SEWER CONSTRUCTION NOTES ez'. „0 , `1
/ — _ _ —� o OF18". 1 •�
- / W
' - 0( I r ' - - - - - - - _ _ _ _ 6 i I 1 . Pipe installation shall be in accordance with ASTM D2321, and as modified in
- - _ 13 J / ,\ \\ _ I I these notes. �' ,,,�
I \ - I �° I 1 2. Bedding shall be Class I material with a minimum depth of 4 inches. (See ASTM D2321
/ I I / I for definitions.) r„1
I0~-- - - , , / / / 6"PVC ATERUNE. I 3, Haunching and backfill shall be Class I or Class II material. Where Class II material is �'
- - - _ - - - _ - -j / / / / I I - - 1,14 used, each stage shall be compacted to a minimum of 95% Standard Proctor. Stages shall �y Q E
-
/ /PARA,J11 3" / I-6"x 6" TEE I I I include: a) from the trench bottom to the spring line of pipe; b) from the spring line of pipe •�
_ _ _ _ 1' - \ ( DOSItIG MAIN / / 2-6"GATE VALVE&80X I I I to:he top of pipe; and c) each 4 inch increment from the top of the pipe to the elevation of
- - - - 6"DIP -'' I - 6"x22 1/2°BEND
— - _ _ \ (e'PLuo-- - I I I the subgrade for the roadway. PI
' - - - \ ---__ \BYtSONTRACTOR , I 4. Ccmpaction equipment shall not be used directly above the pipe until sufficient backfill has Sa
\ \ 14 /, / I been placed to ensure that such compaction equipment will not have a damaging effect on �
/ I \ ! I I I i the pipe. rJ-I
\ / 1 13 MANHOLE#1 / I 5, Each joint of pipe shall be bedded true to line and grade with uniform and continuous/ \ / (SEE Pl}OFIL cS I I P P
\ I 1 stnport from a firm base. Batter boards and string lines, or laser beams shall be v
_ - - - - - _ - _ r4 _ / / I MANHOLE#2 / Oiii
\ I I used. The Contractor will be required to furnish the detailed stake out for guidance of the Cd
12 1 -2"GATE VALVE&B•X I (SEE PROFILE) \ I I
_ - i e layin o eration. .1 -6"X 2"REDUCER I - 1 \ 1 pp g p1 / 1 -6"THRUSTCOLLA LOTTED VAIN DRAIN / �� \ \ 1 6. The Contractor shall remove all water encountered in the trenches by pumping, bailingMDOSING TANK- - - - \ O 1 -FIRE HYDRANT AS 'Y. (SEE RETAIL) /I I-- - - I.. 13 anri/or by well pointing. All jointing of pipes shall be made in a dry condition. M+�1$�� 8 \ \ 6,00o GAL.SEPTIC TANK 1 -6"TEE / � �f�/ 4 - J �I \ / III 7. All precautions shall betaken bytheContractor to prevent sand andmud fromentering the\ `��� •� \ , _ II I pipeline dunng construction. Upon completion of the work, the contractor shall brush andI •UBLE SEWER SERVICE �► �� \ I clean all ones as required to remove any accumulated debris.
l &C(EANOUT(TYP) �� \ ` _ - - - - II 8, II' tractor shall utilize a low pressure air test to determine the acceptability of the
'41
`I 4, =_� _� �� = v11 \ - - - , I I 1c :�pleted work relative to being leak proof. Said test shall be performed in the presence of� ST / 0 / - - - _ I I the;Engineer. The Contractor shall be responsible for documenting the test and providing a �1 M9 3sp =��EyE1�pR X / \\ \ / / ` _ _ _ _ ` \1 I ' I I 1 signed copy of said documentation to the Engineer. The test shall be performed in the 1cfl
t.
1 s ,- �� a TION B. _ / �\\ \ / / / \\ / 1 following manner: 4
1/4A
p,c;�bac,(sttd°stb I �" 1 �����' Yp� �� ,s . r 8„X v..HELICA 1� = g 8 MSL / / ` — _ ` _ _\ \ ,- - - \1\\ \ \ / 1 I a) All construction is to be complete with all cleanouts, service laterals, PVC plugs, etc., --
SPILLWAY CREST prtHO>!t / 1/� QE ARCH /1.o•_ / _ \ c = — — — - — /I \\\ I In lace. " °'
ELEV=8.5'MSL4,D \-1----•;
� CLEA ��� j4 _ / 1 - _ _ - II I p�� � / . : ACAS / / \ \ \ _ / / i j I _ - 1 b) A pneumatic plug shalt installed in the sewer line at the septic tank, thus making fora 6'
•
FFF- 18
I Ii 4'', G �,�p1A Wg.X I / \ I I / _ // /I 1 112sealed line.�,I ..� illifivol.1111
�uN� 6' MSL I ��. I� � � ��`___ _ __=_� /J // ) I Il 1 c) If the water table elevation is above the pipe at the lowest point of the sewer line (septic �
BLOW-OFF ASS'Y. ''� �/ "' o�- , / g.5 Ms� I%[✓\11 _ _ _ _ _ _ _ _ / / / )1 tank area), then the associated hydrostatic pressure for this water level shall be �{ cl
'�I, Io �� - - - - ' to.- _ _ - _ _ _ - _ -�// / /I I determined by subtracting the elevation of the pipe (at its lowest point) from the CC c\I
111„
_ - - - _ _ _ _ / / 1 I elevation of the water table, and multiplying this number by 0.44.
YR - - _ - - 1 d) Low pressure air shall be introduced into the sealed line until the internal air pressure W
/ / / _ _ - I I. O. 8.3' MSL - - - - - ' - / I „ ,,
/ i _ , -' / II -III reaches a value equal to the hydrostatic pressure (from c above) plus 4 psi. W o
1 / / �E.-1lo4 - - _ - _ / e) The air pressure shall be allowed to stabilize at no less than the hydrostatic pressure z.sue
/ .,,,,„„,,, / I / 1= .1(0 - - _ -
-
_ �>< t•', •
/ (
/I 1 plus 3.5 psi. ._. U
I � I(0 _ _ ' , '' _ I " the line shall be termed acceptable if the pressure does not 'O
1'. _ / I f) Following 'stabilization ^ --,
b p_n pe.I� la - ' , / / \ \ N I I drop more than 1 psi within a period of 2 minutes. V1 Z o
V r' _ _ - VI4iRIP RAP BANK PROTECy10N / - - - _ _ _ / / / \ \ \ \ I I g), If the installation fails to meet the above requirement, the Contractor shall, at his own ��--^^ W Z
F E. I(o1 f%FE I�0 -
- - - - - :AV,' / / '- - / \ N / expense, determine the source of leakage, and make any necessary repairs. The line V1 �'
II
I) _12 , lay _ - ' / \ r
// / / TV "
/ / \ \ \ \ - -- ' r _ - 10 shall then be retested following the same procedure. oRIP RAP BANK / ' ,
PROTECTION � - / / _ - - �� ll r - \\ / // /l \ \ \ _ _ - _ .1 1 z Cn
- _ I \ 7
,u,nn u," 14 / / I / /
\ / / 15-/8.0
i �--� 1DIf ETE ATIOPI 4 I / \ c\
ELEV.OF CREST OF DIVERSION IN
0 \ \ / / / �(uISL', / / BASIN#1 5 / I I / /
/ / / / 1 ) 5'� J N
SPILLWAY=8.1'MSL \ r (SEE SHT. 10 FOR _ :41 ,�; r / / / I /
, BASIN JAW �i�� EL �� - CRS' /0;'61VERSION SPILLWAY= 3.8 MSL x
N°r rZ2,MSL \ / / / ��.� / I / / _ \ (n �°
�I-�' CON'OURLINE \ \ 9 / / / / / / / / / 4 z
(SEE SHT.#10 FOR DETAILS / / _ 3 / ) / / / / / / / \
�7. \ \ \ / / / - - - -"� / / / / // / � ' / / / / / ---
\ \ PARTIES RESPONSIBLE FOR WASTEWATER SYSTEM C 0 Ei
OF DIVERSION SPILLWAYS.) 72'`WISt_-,, . .- \. / 8-,‘ 11 / / / / / / / / / V \ \ OPERATION AND MAINTENANCE V
I 1.5
��► \ \ I \ I (/ \\ %I;' I / / / // /// 1 / // / / / / , - \ I ` ' 6
\ N _ / / / / // \ \ / / / / I 1 The "Tripartite Agreement" between The Beach at Brick Landing,, v1 2
aG� MOW - - -- 7
/ / / / / / - ) (n
8 '' '"` j�Asi�l \ \ / / / / / \ \ / / // / / / r / , I I Partnership (Developer), the Brunswick County Health Department,
(SEE SHT.IOFOR \ \ \ - — _ - / / / / \ \ / , , / / / / ` I I I arid The Beach at Brick Landing Homeowner's, Inc. sets out the
BASIN TA) _ _ \ \ \ \ N
N MIN.ELEV.TC�P 6F I3 f�i(v179 5'MSL / \ \ / V /\\ \`' / I \ I I / responsibilities for wastewater system operation and maintenance. O 2
MIN.ELEV.TOP OF - , , / / \ \ / 0 \0/ V' / / I I This document was executed by authorized persons of the Developer
BERM=8.7'MSL e \ \ _ _ _ - - - / / / // / / / / / /\ / /I 1 I / on August 23, 1989, and thereafter transmitted to the Brunswick T-
/ V / \ SILT FENCE \ / / / / / / \t( \ -'/ 1 / County Health Department. The Developer's address is:
\ O TORiNG WELL — / / , _ _ - - — / / / / / / // / The Beach at Brick Landing Associates
\ _ — — \ (SEE DETAIL) \ — — — — — / / / / //j / / g
\ \ / V / % \ - - - _ - - - / / // /j / / /i, / / / Route 5, Box Shallotte, North C7
arolina28459
. I 1 \ \ \ / \ . ` I _ / // V / / / / / _ •
' h 1 III •
,,,,,„_____{---SILT FENCE , ) / jl\ I \ \ \ / / / / \ I / I I „ I /� �_�� / '/ / / /_ - 1f 15 IY. hs'
— ___- / /�/ I \ I _ \ \ \ _ _ � / / - � N \ � / '-\I j- - _ / - __ ' -i —— ; - _
I
/--f-_______x_c/1,_i \ \ / / -- i \ ,-.
)/ :7
0 - - V. ' - - - SPECIAL NOTE: WATER LINE SHALL PASS UNDER ALL SEWER SER�`ICES. ALL SEWER SERVICES
// \ / //// �/ APPROX LOCATION OF MHW SHALL BE OF CAST IRON OR DUCTILE IRON MATERIALS. (SEE DETAIL) 6" WATER LINE SHALL BE
\\�� \L- - -'�/_ -- DUCTILE IRON SEWER SERVICE LOCATIONS. (SEE PLAN. THIS SHEEP.) 2" WATER LINE SHALL BE 0 m
•,��-�`_�'�� ENCASED IN CONCRETE FOIE A DISTANCE OF 10' ON EACH SIDE OF THE SEWER SERVICE.
-SEWER SERVICE PLANNING AND LANDSCAPE ARCHITECTURE I
CONCRETE m O
ILLUSTRATION ° 'e 10" ,2"WATER LINE
40 20 0 4 0 8 0 12 0 °v r
-�-� / WILLIAM G. DANIEL & ASSOCIATES — - m m
8000 REGENCY PARKWAY SUITE 140 0
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N. SCALE IN FEET CARY, NORTH CAROLINA 27511 „C o a t
f 10'MIN. 10'MIN. t 0♦♦^^
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EROSION CONTROL NARRATIVE EROSION CONTROL GENERAL NOTES STORMWATER INFILTRATION BASIN "1" DATA /.\ STORMWATER INFILTRATION BASIN "2" DATA 1- z W
A. THE BEACH AT BRICK LANDING GENERAL PROJECT DESCRIPTION 1. All construction activities shall be performed in compliance with the Sedimentation Pollution - o m
Control Act of 1973. 0 SURFACE AREA OF BASIN>9,000 SF SURFACE AREA OF BASIN>5,900 SF Z o
BOTTOM ELEVATION=8.0 FT. MSL BOTTOM ELEVATION=7.2 FT.MSL o O u)
The Beach at Brick Landing will be developed on an approximately 7.2 acre tract of land ►_
MSL DIVERSION SPILLWAY ELEVATION=8.1 FT. MSL w Q a8 8. FT.
located at the intersection of NCSR 1155 and NCSR 1143 in southwestern Brunswick 2. All land disturbing activity is to be planned and conducted to limit exposure to the shortest DIVERSION SPILLWAY ELEVATION= DIVERSION SPILLWAY WIDTH-20 FT. > CC co
DIVERSION SPILLWAY WIDTH= 15 FT'.
County. This tract is bounded on the south by the Atlantic Intracoastal Waterway (AIW). feasible time. STORMWATER RUNOFF VOLUME FROM 1.5 INCH RAINFALL= * 3,800 CF STORMWATER RUNOFF VOLUME FROM 1.5 INCH RAINFALL= *4,700 CF LU .J a
The initial phase of this project will consist of twelve single family lots anda swimming STORMWATER STORAGE VOLUME AVAILABLE @ SPILLWAY ELEVATION >5,800 CF STORMWATER STORAGE VOLUME AVAILABLE @ SPILLWAY ELEVATION >5,300 CF 0 z 3
pool. The developer may in the future decide to expand the project, possibly to include 3, All construction sites and severely eroded areas shall be stabilized by the establishment of a POOL ELEVATION REQUIRED TO PASS 7.7 CFS (Q10) =9.2 FT. MSL POOL ELEVATION REQUIRED TO PASS 9.1 CFS (Q10)=8.4 FT.MSL
multifamily units, though no final plans now exist for doing so. permanent ground cover. The Landscaping Plan presented in the plans shall be followed to MIN. TOP OF BERM ELEVATION =9.5 FT. MSL MIN.TOP OF BERM ELEVATION=8.7 FT. MSL M a
the maximum extent possible. * o w
* 4,700 cf includes runoff from the initial project which includes 29,700 sf of impervious arca,
An approximately 850 foot long street, with valley curbing, will serve the project. Potable 3,800 cf includes runoff from the initial project which includes 25,600 sf of impervious arca, 1-
plus an allowance of 33,300 sf of impervious arca for future construction in Basin"2". , U 0
water supply shall be from the Brunswick County Water System and distributed on-site 4. Where it is not possible to establish a permanent ground cover in a reasonably short period of plus an allowance of 25,400 sf of impervious area for future construction in Basin "1". o w m
through 6 inch and 2 inch water lines. Wastewater services shall be provided through a time due to seasonal considerations, a temporary ground cover shall be established. The o 0
central, on-site collection; treatment, and disposal system. temporary cover shall include the planting of annual grasses or small grains. Where the cc o ,
season or other conditions are not suitable for growing a temporary erosion resistant cover,
The developer of the project is The Beach at Brick Landing Associates, Shallotte, North or where the growth of a temporary grass or grain would be detrimental when considering
Carolina. the requirements of the Landscaping Plan, mulch may be applied. Mulch used alone shall
be for the shortest time practical. A temporary or permanent vegetative cover shall be �,.P 4 "14'' i
B B . SOILS AND TERRAIN established as soon as conditions are favorable. «.ova 9 ,�
va
Most of the project area is covered with spoil material originating from US Army Corps of 5. Silt fencing, and other temporary erosion control measures as may be necessary, shall be =c1�
Engineers' dredging activities of the AIW. The soils in the northern most section of the installed prior to the start of construction. As soon as the area is stabilized, the temporary =v y Q
project area, however, belong to the Wando and Blanton series. All soils are excessively measures may be removed. " �•• - Q`
drained. BOTTOM OF TOP OF BERM 'mod • O �:
6. Topsoil shall be used over unfavorable soil conditions for successful establishment of INFILTRATION BASIN 9.5' MSL 8.8' MSL (CREST) ',L,, ij,ut`r���
A topographic map of the area is presented in the design plans. vegetative cover. j
C . EROSION CONTROL MEASURES 7. Irrigate as necessary to optimize plant growth. 15 u�
- STORAGE VOLUME REPRESENTATIVE OF
Land disturbing activity for this project will be related to the construction of roadway, 8. Over the life of the project, the owner shall make periodic inspections to evaluate the success RUNOFF FROM 1 1/2" OF RAIN FALL
housing, wastewater effluent disposal fields, infiltration basins, and swimming pool. The in controlling erosion of soils to off-site areas. If areas are found where erosion is taking 44
Cd
wide buffer area between the disturbed areas and the AIW will provide the primary means for place, the Owner shall take the necessary measures to remedy the situation. (LOOKING UPSTREAM) ,mil Q
natural erosion control. The primary method for "artificial" erosion control will be two CROSS SECTION THRU SPILLWAY #1
permanent stormwater infiltration basins. As presented on the plans, drainagefrom most of SCALE: 1"=5' 00 c:
the disturbed area will be directed to.these basins. Aside from these primary means of
erosion control, the layout of the project lends itself to the effective use of silt facing. 5' _ N
termbasis shall be 8.8' MSL (CREST) A r
The primary method for preventing erosion on a short term and long bt s s f
tem orar and permanent ground covers. A detailed landscaping plan (see plans) shall be FLOW
.,-
temporary P �' B
project. GRADE SHALL BE 2.0%TO POINT OF *rill
• TIE-IN TO CHANNEL`LUPSTREAM �_-SEE PLAN FOR GRADE FROM
D D. DESIGN BASES SAFETY FACTORS
, 8' I,v:X. t THIS POINT DOWNSTREAM `Y
Due to the probable expansion of the project in the future, the stormwattr collection, VARIABLE AS DIRECTED BY THE ENGINEER
1 transportation, and infiltration systems were designed with significant safety factors. I LONGITUDINAL SECTION THRU SPILLWAY #1 � ~ � -
Specifically, the hydrology and hydraulics calculations for th.e drainage area of catch basin it --- -- :. - SCALE: 1" =2' V
number 1 were performed assuming an eventual impervious area 100% great than that cf I 4itt mi OP ;) •r•1
the se, the
were initial performed assuming an eventual impnervious aredrainage
112% greater than thator he in tit l MIN. 10 GA. 4:s\..\4: , hi cn
IIIIIIInr4: dr F� 0 MIN\ 1212 G
project. Further, the infiltration basins were designed to hold over twice the volume of ••••••LINE WIRES <� �. •,.j,l ;°'x WIRES � 3z5
runoff as required for the initial phase by Stormwater Regu:ations. a ? 11111111 t,4J" E.411.\ ,; �
_ . �i 9.1'MSL
'\/,� •� ,k� s. r9.0' MSL (8.1'
03 ���,,,,,,
MSL(CREST)
:,
r .S�3 : °ue � ► ., \i.i` : �:
A� dam `4"v,i < • ,. ; - ' .i
20 V
_ 1 -. -" '� k+1 ''ry{rt!" '- _ ,t .(d .01'�C _P 1�� � - '1
I S A r
•- 0. -i. al fz_,HO
%,-1 Rh (LOOKING UPSTREAM)
� -'-� CROSS SECTION THRU SPILLWAY #2 ,Ls----,
FRONT VIEW --..-,!---
SCALE: 1"=5'
CONSTRUCTION SEQUENCE
i-STEEL CR W000 POST • 7t.
1 . Construct construction entrance. WIRE FABRIC 5' CV
CD
2. Construct silt fencing at locations shown on the plans and at Other SILT FENCES
locations as necessary to prevent "sheet" erosion. SILT FENCE FABRIC �8.1' MSL(CREST) • �r
(BURLAP ONLY IF LIFE OF
FLOW
3. Construct stormwater infiltration basins. 1. Install silt fences as shown on the drawing and at PROJECT IS LESS THAN �7.4' MSL
4. Perform rough grading of roadway.
4 MONTHS) �� GRADE SHALL BE 3%TO POINT OF
$ $T $ Y . locations necessary to control siltation of adjacent �
5. Construct open channels and diversion spillways. CE
6. Construct water and wastewater facilities. areas. FOR REPAIR OF SILT FENCE o o FILL SLOPE TIE-IN TO CHANNEL�tUPSTREAM
2. Where wooden osts are used, the shall be a FAILURES,USE No.57 3
7. Perform final grading of general terrain. p y w'ASHEo STONE -� N SEE PLAN FOR GRADE FROM
8. Seed and mulch denuded areas. minimum of 3" in diameter and 6' in length.. Posts THIS POINT DOWNSTREAM rn
shall be creosote or pentachlorophenol treatedmill Ln
9. Perform final grading of roadway and prepare subgrade. CO
,r-
CC N
10. Construct slotted vane drain,place base material and pave roadway, southern pine. I
n . GRADE
LONGITUDINAL SECTION THRU SPILLWAY #2 co
3. Where steel posts are used, they shall be 5' in height • ' LLI
1 1. Proceed with construction of residential units, recreational facilities, I6" MIN.COVER OVER
landscaping, etc. and be of the self-fastener angle type. W SKIRT w SCALE: 1"=2' W o
12. Maintain temporary soil erosion control measures until perrninent 4. Woven wire fencing, where used, shall conform to 0 N ANCHOR SKIRT AS NOTE: VIGOROUS STAND OF LOW PROFILE GRASS(ES) SHALL BE MAINTAINED Z t
ground cover is established. ASTM A116 for class 3 galvanizing. Fabric shall be a DIRECTED BY ENGINEER ON SPILLWAYS AND OPEN CHANNELS AT ALL TIMES. MOWING SHALL BE /
minimum of 32" in width and shall have a mimimum of �` SCHEDULED SO THAT HEIGHT OF GRASS DOES NOT EXCEED 2". C
`/
Wirefabric hall o
il
6 line wires with 12" stay spacing. ab c s V1
z
Z
fastened to ,wood posts with not less than #9 wire SECTION VIEW n INFILTRATION BASIN DIVERSION SPILLWAY SECTIONS U2 W
staples 1-1/2" long.
5. Burlap shall be 10 oz. weight and shall be a mimimum o
of 36" in width. SILT FENCE DETAIL (5 2
6. For repair of silt fence failures, use no. 57 washed A z (1)stone. IiTS 1 _r -• _, ' • . . "t- �
50 MIN BI i -lc ,l - a -- - i __x. 1: .
69" N
h. 7 -
c'e
a Yaw
i ' I �, ,1 ` .4•'. 25 w10Tw OF CO
' ° Ib • ° I• S PRO SED STREET, SHEAR LUG 4 z
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EXISTING .• ' _` t ° ' ' ° e•c. W141 EVER IS _ - -- r 6.. 5'Yu"-{� O
o ° ' ° ,. 4 s • GRE TER t_ = a= =c �k e
ROADWAY • . ABC '' - l - • E fir.
U
. • E-+ .�
SECTON B-B
• o ` E Q1
`• 4'�I ' I • MAINTENANCE OF STORMWATER FACILITIES 15"DIA.SDR-35 CI) i
v,t°0.'4p'e°. u � ' :a �yp'��t�n�i �' va • 1,4 e.}• •�. �
4 ,, A°.•• • - .. p -• c .•'C�' 610: .• .•v •
SEWER PIPE
1. Following each rainfall exceeding one half inch, and at least on a monhly basis, catch basins, �_
spillway structures and the infiltration basins shall be inspected. Maintenance activities shall SECTION A-A \ __i C
PLAN include the following: 2
--,4,2„ ,7"--"' =
- removal of sediment from catch basins '''i-
-
removal of all debris from the spillway areas to facilitate unobstructed flow over the WIRE CASTING SECURELY TO THE PIPE • / " /
spillways;
- maintenance of a healthy ground cover on the spillway and dike areas; ��, f` l . PAVEMENT
EXISTING 35' MIN. _ I5' MIN. En CONSTRUCTION - stabilization of any areas exhibiting soil erosion with a suitable vegetative cover, erosion i. i :, �
ROADWAYS \ blanket, riprap, and/or pavement as necessary to eliminate the potental for erosion; and, = =::.. :).>,...4\:.
,;-
correctingother roblems as may be necessary to optimize perfo ance of the infiltration i"(''''(''' ''
i - j` -\ i. -
.�• P n1 / I
6 MIN. '.9 _ - . c f, • - 1, boost$ 12 "'N basin and hydraulic structures. f-
ej 2. On a semiannual basis the bottom of the infiltration basins shall be re+tored to a level plane at , '(`rA.-',' / 6-(MINIMUM)CONCRETE ENCASEMENT
, �i ,,r SIDES AND BOTTOM
the elevations presented on the plans. �'
CROSS SECTION i _/PIPESET0 %GRAD35 PVC EWER
I- ! PIPE SET 2%GRADE
_;,;:,! -
- --- BLOCKS TO ADJUST PIPE TO GRADE AND
' ASSURE 6"OF CONCRETE ENCASEMENT
SSS+ I-/ , BENEATH THE PIPE
ENTRANCE-. \`
CONSTRUCTION SLOT CUT LENGTHWISE TO ACCEPT
DETAIL POSITIONING LUGS ON THE ��
UNDERSIDE OF THE CASTING S U
NTS - q
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cr
n SLOTTED VANE DRAIN DETAIL o 0
NTS ,�., 0 I >, m
m Q CO m
• ` m
m a o
O - 0 t
co CI) 0 0 ()
6
89 -0676 - i

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0
e SPECIAL NOTE: The Beach at Brick Landing Associates shall provide or
establish the legal documentation and easements necessary for wastewater g
UJ O= KNOWN EXIST. PRIVATE WATER a system construction, operation and maintenance in compliance with the m Z
SUPPLY WELL WITHIN 200'OF requirements of the Brunswick County Health Department. This o ix
WASTEWATER SYSTEMS. documentation shall include but not necessarily be limited to homeowners x UJ
1-
IMPERVIOUS AREA NOTES: ( TYPICAL SYMBOL ) agreements and associated easements whereby the means is guaranteed for o a/ <
p proper system operation and maintenance where said system is in common w 4 i
I. FOUR DIFFERENT STYLES OF HOUSES WILL BE CONSTRUCTED AS A PART OF THIS ownership and/or use. "Common ownership" components of the wastewater a u. o
NOTE:
PROJECT. THE RECTANGULAR "ENVELOPES" SHOWN ON EAC►L LOT IS REPRESENTATIVE
OF TILE LOCATIONS OF TIIE HOUSE AND TILE GARAGE. AN IMPERVIOUS AREA VALUE OF system shall include: o LL vi
2720 SF WAS USED FOR EACH LOT IN IMPERVIOUS AREA CALCULATIONS. THIS VALUE SEE SHEET NUMBER 11 FOR SEE DETAIL SHEET 7 FOR w O g
REPRESENTS THE STYLE HOUSE WITH TIIE LARGEST IMPERVIOUS AREA, TIIE GARAGE, - CONTINUATION OF WATER LINE LPP FIELD&REPAIR AREA I I q z tial
- - _ _ _ CI) I A\ 1) 6 inch wastewater gravity sewer; 0
AND AMPLE PAVED DRIVEWAY. THIS METHOD GIVES 111E DEVELOPER THE FREEDOM TO - - I cli —+ N )
CHOOSE ANY OF THE FOUR STYLES OF HOUSES FOR ANY PARTICULAR LOT AS - _ _ _ / I 2) 4 inch and 6 inch gravity service lines from the point of tie-in to , z u,
MARKETING CONDITIONS DICTATE. I ��- - _ _ I o the wastewater gravity sewer to the cleanout at the end of the 4. w
_ I / I — — _ _ _ _ ,� I I service line; q cc"-
2. ALL DECKS ADJOINING HOUSES SHALL BE OPEN (NO ROOFS) AND OF WOOD -_ - - - 1T - _ I _ - - _ _ I I 3) septic tank and dosing tank system;
CONSTRUCTION. ALL WALKWAYS BETWEEN TIIE GARAGES AND I LOUSES SILALL BE WOOD - --� F SR 1 1 S S - - _ - _ _ I r
"DECK"CONSTRUCTION. R - - _ _ _1 I _ _ _ / 4) 3 inch dosing mains; and, 0
CONSTRUCTION ENTRANCE _ - - - _ _ - I - - I 5) low pressure pipe wastewater effluent disposal fields. <
(SEE DETAIL) *46, a _ _ - - _ _
fib ' � \ - - - I
WATER TABLE NOTE:. 11 / ) - - _ _ _ I The easements and/ or other rights shall be retained and/or granted as
1--s~GATE VALVE& BOX , - - - - - _ \ I necessary for all parts of the "common ownership components, including .�'
THE ELEVATION OF THE WATER TABLE AT INFILTRATION BASIN #1 IS MUSH LESS THAN 7.0' ° / - - - - - _ 1 those parts located on or between residential lots. .5 ``•` ,,.
e
MSL.THE ELEVATION OF THE HIGH WATER TABLE AT INFILTRATION*2 IS APPROXIMATELY ° _ I ,••- � ''
4.5' MSL. THESE WATER TABLE ELEVATION STATEMENTS ARE BASED ON FIELD 4 p `, _:
INVESTIGATIONS BY THE ENGINEER AND A 2/22/90 FIELD INVESTIGATION BY? .VINCE LEWIS. / ' W MONITORING \ I ='� ter:
DEM,NCDEI{NR. 0 WELL 1 i =v
I �r
a =S• o
19— — `" e REPAIR / �, } I 1 ' O d p`3��
3` A REA,#2 o I I I '.,�� �s
18 ,/ / I I WORK IN AREAS OF EXISTING UNDERGROUND UTILITIES: The locations ` �
IS - - - - - - - _ r / I I shown for existing underground utilities should be considered as
A � �r REPAIR ° / _ - i_ I I approximate only. The Contractor shall be responsible for field location of all u
�T --y'�'1• b/RE477QIv AREA#1 _ _ _ _ , / I I underground utilities whether or not they are shown on the plans. Any i
OF FLQ ��� M NA/4��� d�tiFF
17 - - _ - ° idamage to underground utilities shall be repaired to the satisfaction of therz,r,--, rfs
• _ _ - - - - I I utility owner, and all costs associated therewith shall be borne by the �`�° IContractor. ,° \ 1I L
to o - - - �j� , DOSING MAINS SHALL PASS UNDER
\6 _ o \ WATERLINE. DISTANCE BETWEEN I C./) , 1
BOTTOM OF WATERLINE AND TOP I
I I - _ \� _ - _ \ OF DOSING MAINS SHALL BE A MIN. I -
ID- - — — — _ _ — — — _ _ P _ — _ _ ° N OF I i GRAVITY SEWER CONSTRUCTION NOTES
_ >~
_ _ _ \p/ //r — — — — \� _ _ _ , _ _ , /6 I I 1 . Pipe installation shall be in accordance with ASTM D2321, and as modified in
13 \ I these notes.
I I - \ \ \° 2-6"22 1/2'BENDS I 1 2. Bedding shall be Class I material with a minimum depth of 4 inches. (See ASTM D2321 aj
10-- - - - - - - / I // / , I I I for definitions.) r�1 ?
_ / 1 1 3, Haunching and backfill shall be Class I or Class II material. Where Class II material is �' j I
— — — _ _ _ — / — — — _ -" / / / j i — — -, 14 used, each stage shall be compacted to a minimum of 95% Standard Proctor. Stages shall V
— _ _ — _ - /PARR .Ef-3" / ( I I include: a) from the trench bottom to the spring line of pipe; b) from the spring line of pipe 9 •� L
' - - _ - —t \ ( � DOSING MAIN / 2� 1 I I to the top of pipe; and c) each 4 inch increment from the top of the pipe to the elevation of
PI
_ \ ( ��J I I I the subgrade for the roadway. ��
— — — _ \ \ \ , \ \ 1 4. Compaction equipment shall not be used directly above the pipe until sufficient backfill has
4s) K:::4
N / \ 14 \ ,�� / I been placed to ensure that such compaction equipment will not have a damaging effect on G
\ / 1 \ ' MANHCILE#1 I - aR frill I I 1 the pipe. G��
9 _ _ _ _ _ - — \ / 13 \ / (SEE PE�OFILE / • , 'S I I I 5. Each joint of pipe shall be bedded true to line and grade with uniform and continuousto r"------>l I I support from a firm base. Batter boards and string lines, or laser beams shall be v
_ — — — — _ _ _ _ _ / \ MANHOLE#2 / �. 1-6"TR .4SITION CPL I 1 u ed. The Contractor will be re aired to furnish the detailed stake out for uidance of the CS
• - _ 12 1 -2"GATE VALVE&B•X \ (SEE PROFILE) \ I I I q g
1 =s"x 2" REDUCER } - pipe laying operation.
\ II / 1 -6"THRUST COLLA (SLOTTED VAIN DRAIN / SS , \ I 1 6. The Contractor shall remove all water encountered in the trenches bpumping, bailin
- — \ IO / 1 (SEE RETAIoilreL) IP \ \ Y g M
e N.
\ 1 -FIRE HYDRANT AS/'Y. 4 ) �� 1 \ l r - - h 13 a:id/or by well pointing. All jointing of pipes shall be made in a dry condition. w
8". N \ 1 -6"TEE � �� I I8 1I 1 7, All precautions shall be taken by the Contractor to prevent sand and mud from entering the
N 6,000 GAL.DOSING TANK �� .F- - - \ — _ - ' I I pipeline d ng construction. Upon completion of the work, the contractor shall brush and
5,000 GAL.SEPTIC TALJK •OUBLE SEWER SERVICEI� `' \ — 11 c can all as required to remove any accumulated debris.
I ) &-CCEANOUT(TYP) 11011111h11111111.
g " 1 N _ -- , _ _ II I S. l ctor shall utilize a low pressure air test to determine tl:e acceptability of the
® 4 == - - - _ \ I i
co:Eecndg;terp:1
pl work relative to being leak proof. Said test shall be performed in the presence of ••
\ i' / fai / ,� / - - - II ther. The Contractor shall be responsible for documenring the test and providing a N
—- ili
\ P• �� �\ \ / — — — — _ _ \ I I sigy of said document ation to the En"ineer. The test shall be erformed in the :
r "1
11111
/ \\ \ / / / / following manner: ' d
N.
I 53 , SERVICE 5' _ SEWS L - _ _ _ _ - _ - _ \ I\\ \ I 1
• "O EStiWER 1 IHNIEF�uN�s (VP.) / / — ,� _ —N.\ \ — ' \\\\ \ \ / I 1 a) All construction is to be complete with all cleanouts, service laterals, PVC lutes, etc.,
SPILLWAY CREST iNGL (;(YP) '- pVC ( / _ \ _ - - _ _ /I \\ h n 67
ELEu=a.S'MSLIlit,, . , cT �._� - - / / \ 1 — _ _ _ _ \ I I I 1 in place. T�
Q,� / i ' FF e• 18 \ \ I _ _ / L 1 I I I _ — 1 b) A pneumatic plug shall installed in the sewer line at the septic tank, thus making fora V1 d7
0-1
�p M►N.lr( c�Je 1 I � - -\ _ _ / 112 sealed line. rT]
-�!�� 111
/ l r 11 _ = _ _ __ _ — /i // / I 11 1 c) If the water table elevation is above the pipe at the lowest point of the sewer line (septic
BLOW-OFFASS'Y. "pi
.�;/r 10 / � �\11 — ____ _ _ _ \ //// / I tank area), then the associated hydrostatic pressure for this water level shall be U) c
Cl\tv
toillVeE 17 _ — _ / /I determined by subtracting the elevation of the pipe (at its lowest point) from the N
- - - — — _ _ _ / IIelevation of the water table, and multiplying this number by 0.44.
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/ / / _ _ — f`E-• I� - - - ' / _ _ _ _ - -; 1 - Id) Low pressure air shall be introduced into the sealed line until the internal air pressureW c1\
III / / FE.I(v \ _ _ _ , / ' p - -IIIreaches a value equal to the hydrostatic pressure (from "c" above) plus 4 psi. W oI / Ilo �,�� ELEV.Of CBE. I 1 — / _ — 11 e) The air pressure shall be allowed to stabilizeat noless than thehydrostaticpressure z cuk /
\ FEE. I(.o / 1� oTECTIdF-�c .PIL- L--wA�s�8 nns— �� � 1 ( � I I f/ Followingslstabilization", the line shall be termed acceptable if the pr��ssure does notOT� � �1 . • 13 � _ � � � \ \ \ I I drop more than 1 psi within a period of 2 minutes. V1 7 i -
_ _ 71 1514 / _ _ / \ 1 1 g) If the installation fails to meet the above requirement, theContractorshall, athisown (,jiZ
E Rol — — — _ _ O �' / / / ' \ \ \ / I expense, determine the source of leakage, and make any necessary repairs. The line �'
+�` \ - — 10 shall then be retested following the same procedure. o
RIP RAP BANK / ") - -14 15
/ / / /r ' y / \ \ I V
PROTECTION `� -11 ) _ J I I
- y 1 47-)--+11,Li_-z-r" \ 1 ly l' 6' 1 il -, g'.Z Z u)
\ / 1 I SA>/7,300 SF /• 1/ ,-( - - 8 t�
an,,n nun„ I \ — — / / 13- - - \ '
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al
ELEV.OF CREST OF DIVERSION` �9 / `ow / ) AR 2 9 19SO CV
SPILLWAY=8.1'MSL \ \ / - I. Q I N�ILTRATION/ I J
/ / MONITORING WELL / D E x
2' \ �� / / - i / / / BASIN, 1/ ' I / V! C
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CON'OURLINE \ \ \ \ \ // / / / / / ` / / / / (SEE DETAIL) / / / / / \\ �� ?Cr ?z? 14 z
(SEE SHT.CO FOR DETAILS \ \ / / i / / / / / I / / / O
OF DIVERSION SPILLWAYS.} Al-..----1---\•411/1SL\� ` \ / I / / / - r - - — - - / / // / I / / / \ ;i PARTIES RESPONSIBLE FOR WASTEWATER SYSTEM C a-
SA>5,969 SF \ \ / I / I r / / _ / / / , \ \ OPERATION AND MAINTENANCE V ,�
\ N — / 4 9 /// / / / / / / \ ) 1 1 The "Tripartite Agreement" between The Beach at Brick Landing, v1\ NFILTRATION 1 \ \ \ \ / / ` / / / / — Partnership (Develo er) the Brunswick Count Health f3 ® iBASIN#2' \ \ \ '� \ \ SILTCE
N.
\ \ I / / / / / // / / // I I and The each at Brick Landing Homeowner's Inc. set Department,out the
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\ �� \ \ \ \ Os:di
- / N. LEV. OP OF / / / / / l \ I g ' rs
\ \ MS
/ / I \ ryes onsibilities for wastewater s stem o eration and maintenance.
,,/MIN. ELEV.TOPOF N 5 1• O/ / / / \ I I I This document was executed byauthorized persons of the Developer Cco
BERM_8.7'MSL s , N , / /1 I on Au ust 23 1I89 and thereafter transmitted to the Brunswick
y \ \ 7 io� \` / / / // / \�` / I ) / County Health Department. The Developer's address is:
\' — — — — _ MONITORING
DE AI }WELL / 1 \ — — - ,) ' / / - - J _ _ -� / / / / / / // /
( \ _ / / --, /// / The Beach at Brick Landing Associates
, ..... _. ....- .... „.... ..., .,-
__ - - \ l \ - _ _ /�i f_ _ y - — J / / // / /� / %/ / / Route 5, Box 107
Shallotte North Carolina 28459
\ 1 ____ Lo
III 1110
k c SILT FENCE � ) I \ \\�� \� \ / / / \ \ I / I ,\ 1 �/� . „ ,
__ i 'i / / /
J// I \ _ \ \ \ _ / / ^ _ \ \ / \I ( —
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\I r _ -- , ���%i��- - - - SPECIAL NOTE: WATER LINE SHALL PASS UNDER ALL SEWER SERVICES. ALL SEWER SERVICES "
\\\ \L __ __ _ __- /�(a �1/.r�R" M/( g SHALL BE OF CAT IRON OR DUCTILE IRON MATERIALS. (SEE DETAIL.) 6" WATER LINE SHALL I3E .. 1"/✓} W
\ \ - ; �"' .i I I " DUCTILE IRON SEWER SERVICE LOCATIONS. (SEE PLAN,AN, THIS SHEET.) 2" WATER LINE SHALL BE O
N.`�__ . ' i� � DP ���� ���r. • ENCASED IN CONCRETE FORA DISTANCE OF 10' ON EACH SIDE OF THE SEWER SERVICE.
G # SEWER SERVICE PLANNING AND LANDSCAPE ARCHITECTURE C3-' m cr
CONCRETE 10" MIN o co
.2"WATERLINE 40 20 0 40 80 120 0 1 m
ILLUSTRATION- - > : . . .40-. _
8000 REGENCY PARKWAY SUITE 140 0 _ .�
'4 SCALE IN FEET CARY, NORTH CAROLINA 27511 .0 o .- o m
r 10'MIN. \ 10'MIN. v 0 L. t
n CIV
n
9-06 V