SW7960202_APPROVED PLANS_19960419

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

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NOTES:
1. OWNER/DEVELOPER: WATERMARK ASSOCIATION OF ARTISANS, INC.
MR. CLARKE MARTIN
ECONOMIC DEVELOPMENT DIRECTOR
NORTHEASTERN COMMUNITY DEVELOPMENT
CORPORATION, INC.
P.O. BOX 367
CAMDEN, NC 27921
2. PROJECT ZONING HC - HIGHWAY COMMERCIAL DISTRICT
3. PROPOSED DEVELOPMENT: 4.300 SQ. FT. WAREHOUSE ADDITION TO
EXISTING 2-STORY COMMERCIAL STRUCTURE; 9.000 SQ. FT. TRAINING
CENTER WITH ASSOCIATED PARKING, DRIVES, LOADING ZONES AND
WASTEWATER DISPOSAL FACILITIES.
4. MINIMUM PARKING REQUIREMENTS;
REQUIRED PARffltlG - 1 SPACE 500 SQ: FT. OF FLOOR AREA
EXISTING STRUCTURE - 6.500 SQ. FT.
PROPOSED TRAINING CENTER - 9,000 SO. FT.
TOTAL AREA s 19,700 SQ. FT, TOTAL PARKING REQUIRED a 40 SPACES
All PARKING AREAS AND DRIVES SHALL BE SURFACED WITH 2' 1-2
ASPHALT OVER r AGGREGATE BASE COURSE. ALL PARKING SPACES
SHALL 9E SET OFF FROM REQUIRED YARDS WITH PRECAST CONCRETE CURB
STOPS AS SHOWN.
5. MINIMUM BUILDING SETBACK:
FRONT (SR. 12A0) - 15 FRONT (U.S. 158) - 25'
SIDE - 10' REAR - 20'
6. TOTAL SITE AREA = 124,554 SQ. FT. (2.86 AC.)
LOT COVERAGE BY IMPERMEABLE SURFACES (AT COMPLETION) = 49,000
SQ. FT
MAXIMUM LOT COVERAGE BY IMPERMEABLE SURFACES = 50%
PROPOSED LOT COVERAGE BY IMPERMEABLE SURFACES (AT
COMPLETION) - 39.3X
7. UNDERGROUND U11UTIES MAY EXIST THAT ARE NOT SHOWN ON THIS
PLAN. NOTIFY ULOCO (1-800-632-4949) AND HAVE UTILITIES FLAGGED
PRIOR TO LAND DISTURBING ACTIVITIES.
8. SEPTIC SYSTEM DESIGN NOTES:
A. EXISTING BUILDING AND WAREHOUSE ADDITION:
THE EXISTING SEPTIC SYSTEM DRAINFlELD CONSISTS OF
3-1D0' L.F. DRAINLINES AT 3' O.C. ABANDON WESTERN 50' OF
EXISTING DRAINFlELD AND REPLACE WITH 3 50 L.F. DRAINLINES
9' O.C. TO EXISTING AND PROPOSED LINES.
B. PROPOSED TRAINING CENTER:
DAILY FLOW FOR DESIGN IS 450 GPD BASED ON 10 EMPLOYEES AT
15 GPO/EMPLOYEE AND 30 STUDENTS AT 10 GPD/STUDENT. USE A
1250 GALLON PRECAST SEPTIC TANK AND PROVIDE 300 L.F. OF
DRAINUN£ IN DRAINFlELD. (3 - 100 L.F. LINES ® 9' O.C.)
RESULTING LTAR = 0.5 GPD/SQ. FT./DAY.
C. SEE WASTEWATER SYSTEM INSTALLATION AND MAINTENANCE
SPECIFICATIONS ON SHEET SP2 OF 2.
9. SEE SHEET SP2 OF 2 FOR STORMWATER MANAGEMENT AND SEDIMENTATION/
EROSION CONTROL NOTES.
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1 inch = 30 ft.
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FIVE AS EROSION CONTROL
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w.. 2" 12 ASPHALT PAVING
Vn J�(�IVi F NI RA ___ FINISHED GRADE
6' A.B C /
\\\ \' '/ / .U> \: \\/\ / /r COMPACTED SUBGRADE
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SECTION A -A
SCALE: 1" = 2'
1/2' ISOLATION JOINT
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j FINISHED GRADE
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�3000 PSI CONCRETE
SECTION B-B SECTION D-D
SCALE: I" = 2' +/-
SCALE: 1"+�-
NOTES:
HAND TOOLED CONTRACTION JOINTS SHALL BE PLACED AT 10' INTERVALS.
ALL CONTRACTION JOINTS SHALL BE FILLED NTH JOINT FILLER AND SEALER.
�.. VARIES WTH DEPTH OF FILL ---
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4' DRAINTLE\
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NON-SEIECT FILL 1
EXISTNG GRADE L__�� EXISTING GRADE
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REMOVE CLAEY SOILS AND
�- REPLACE WITH TYPE 1 MATERIAL--- +7
- _
\ SCARIFY NATIVE SOIL AND MIX
3-6' BELOW REPLACEMENT AREA
/�►� /�� WITH FILL MATERIAL TO AVOID
SECTION C-C DEFINED SOIL BOUNDARY
NOT TO SCALE
WOVEN WIRE FENCE (MIN. 14 1/2 GAUGE,
101 MAX C MESH SPACING)
•O•y'
'4 gr0
NOTES
1. WOVEN WIRE FENCE TO BE FASTENED SECURELY
TOFENCE POSTS WITH WIRE TIES OR STAPLES
36' MIN. FENCE POST, 2. FILTER CLOTH TO BE FASTENED SECURELY TO
DRIVEN, IC INTO WOVEN WIRE FENCE WITH TIES SPACED
GROUND EVERY 24' AT TOP AND MID SECTION.
3, WHEN TWO SECTIONS OF FILTER CLOTH
ADJOIN EACH OTHER THEY SHALL BE OVER-
LAPPED BY 6' AND FOLDED
4. MAINTENANCE SMALL BE PREFORMED AS
NEEDED AND MATERAIL REMOVED WHEN
>� w� OP 'BULGES' DEVELOP IN THE SILT FENCE.
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LAND
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SILT FENCE SECTION
T, .. L
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POSTS: STEEL EITHER T OR U
TYPE OR Y HARDWOOD
FENCE: WOVEN WIFI 1/2 GA
6'MAIL. MESH OPENING
GROUND
FILTER CLOTH: FILTER X.
MIRAF IOOX,STABILINKA
T14ON OR APPROVED
EQUAL
PREFABRICATED UNIT: GEOFAB.
ENVIROFENCE, OR
APPROVED EQUAL
6*-3080 PSI CgICIII
MAIL AM ELT 4%-BX
REINIF. /5 RE W • B' EACH WAY
58'
F_1
FLARE SIDES AT
CONCRETE RAMP
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6' 3000 ppel CONS FLOOR W/ AXE - W2.9/W2.9
WELDED N1RE FABRIC
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FOLD UP 3' AT EDGES AND TAPE JOINTS
6' COMPACTED GRANULAR FILL
�- COMPACTED SUBGRADE (TYP.)
--1' RIGID INSULATION. EXTEND
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SEDIMENTATION AND EROSION CONTROL NOTES
1, PROJECT DESCRIPTION: THIS PROJECT CONSISTS OF THE CONSTRUCTION
OF A 4,300 S0. FT. WAREHOUSE ADDITION (TO AN EXISTING 2-STORY
'II STRUCTURE), THE CONSTRUCTION OF A 9,000 SO, FT. 1-STORY
TRAINING CENTER, AND THE CONSTRUCTION OF ASSOCIATED PARKING,
DRIVES AND WASTEWATER DISPOSAL FACILITIES.
THE PROJECT SITE IS A 2,86 AC. WEDGE FORMED BY THE INTERSECTION
OF U.S. HIGHWAY 158 AND S.R. 1240. THE EXISTING TOPOGRAPHY IS
FLAT WITH AN AVERAGE GROUND ELEVATION OF 7' +/-. THE NORTHERN
PORTION OF THE SITE IS CURRENT-Y USED FOR AGRICULTURAL PURPOSES
WHILE THE SOUTHERN PORTcw WAS DEVELOPED SEVERAL YEARS AGO.
THE PROPOSED AREA OF LAND DISTURBANCE IS APPROXIMATELY 1.5 AC.,
'MTH A TOTAL IMPERVIOUS COVER (AT PROJECT COMPLETION) OF 49,000
SO FT., OR APPROXIMATELY 39.3% OF THE TOTAL AREA,
ADJACENT PROPERTY:
NORTH - AGRICULTURAL USE (FARM FIELDS)
ACROSS S.R. 1240 - RESIDENTIAL USE
_. TEMPORARY EROSION CONTRL_ MEASURES:
DUE TO THE TOPOGRAPHY A•i_ EXISTING SOILS. OFF -SITE
SEDIMENTATION IS NOT ANTI':PATEC. HOWEVER, IF OFF -SITE
SEDIMENTATION IS ENCOUNTERED, TEMPORARY EROSION CONTROL
MEASURES WILL 8E EMPLOYE` A, NECESSARY
4. PERMANENT EROSION CONTROL MEASURES:
A. PROVIDE STONE CHECK DAM- IN INFILTRATION BASIN OUTLETS
AS SHOWN ON PLAN.
B. EXTEND PARKING LOT BASE C,JRSE, 2' BEYOND EDGE OF PAVING
AS SHOWN ON PLAN.
C. STABILIZE ALL DISTURBED AREA AS OUTLINED IN ITEM 5 BELOW.
STABWZATION AND LANDSCAPING- FINAL SLOPES IN ALL
3PAOED AREAS SHALL NOT EXCEED 3:1. ALL SEEDING AND SODDING
SHALL BE IN PLACE WTHIN 30 DAYS OF PROJECT COMPLETION.
A. FERTILIZER. APPLY 3,DDD-B/ACRE GROUND AGRICULTURE
LIMESTONE AND 500 LB/ACRE 10-10-10 FERTILIZER. TOP
DRESS WITH 50 LB/ACRE N TSOGEN.
B. MULCH: APPLY 4,000 LB/A-,RE STRAW. ANCHOR STRAW BY
TACKING WITH ASPHALT, NETTING, OR A MULCH ANCHORING
TOOL,
SEEDING:
1_ TEMPORARY VEGFTAPUN. IF TEMPORARY SEEDING
OCCURS DURING WATER, EARLY SPRING, OR FALL,
APPLY 120 LB/ACRE RYE GRAIN. IF TEMPORARY
SEEDING OCCURS ?JPING SUMMER, APPLY 4C LB/ACRE
CENTPEEDGRASS. TEMPORARY VEGETATION MUST
BE APPLIED WTTHIV 3C -AYS OF LAND DISTURBING
ACTIVITY.
c_ PERMANENT VEGE•AT=N APPLY COASTAL MIX
CONSISTING OF _ -8 PENSACOLA BAHIAGRASS, AND
10 LB/ACRE GERMAN MILLET. APPLY
PERMANENT SEEDNG BETWEEN APRIL 1 AND JULY 15.
REFERTLZE THE I'LLOWNG APRIL WITH 50 LB/ACRE
NITROGEN.
D. SODDING: (IF REQUIRE' PERMANENT VEGETATION -SELECT
COMPATIBLE SPECIE - PERMANENT SEEDED TYPE;
INSTALL WITH LONGE: DIMENSION PERPENDICULAR
TO THE SLOPE AND ."A°LE 'F NECESSARY; ROLL SOD
IMMEDIATELY AND NA` T' 4'_
ALL STABILIZED AREAS SHOULD BE CHECKED AFTER EACH
SIGNIFICANT RAINFALL EA'ENF RILLS AND GULLIES MUST BE
REPAIRED, RE -SEEDED AND MULCHED AS SOON AS POSSIBLE.
TEMPORARY DIVERSION'_ MAY BE NECESSARY UNTIL NEW PLANTS
DEVELOP.
BARE SPOTS MUST BE RELIMED, FERTILIZED, MULCHED AND
RESEEDED AS PROMLI AS POSSIBLE. YEARLY
REFERTILIZATION MAY Bt REQUIRED TO MAINTAIN PRODUCTIVE
STANDS.
STORMWATER MANAGEMENT PLAN NOTES
1. NARRATIVE (REFER TO SPI OF 2)
A. EXISTING IMPROVEMENTS - (2-STORY COMMERCIAL STRUCTURE AND AN
ASPHALT PARKING AREA. NO FORMAL STORMWATER COLLECTION SYSTEM
CURRENTLY EXISTS. STOPITO DRAINAGE
DRAINS BY SHEET G S.R. ACROSS
GRASSED OPEN SPACES PTO DRAINAGE DITCHES ALONG S.R. 1240 AND
U.S. HIGHWAY 158.
P PROPOSED IMPROVEMENTS (WAREHOUSE ADDITION, TRAINING CENTER AND
ASPHALT PARKING!DRIVFS). THE PROPOSED PARKING AREA AND DRIVES
WILL BE GRADED TO SHEET FLOW STORMWATER INTO GRASSED STALES
WHICH FLOW INTO AN INFILTRATION BASIN. THE INFILTRATION BASIN
WILL OVERFLOW INTO THE EY'STING DRAINAGE DITCH ALONG U.S.
HIGHWAY 158. A STONE CHECK DAM WLL ACT TO BLOCK SEDIMENT FLOW
AND AID FILTRATION. 'HE PROPOSED TRAINING CENTER WLL USE
GUTTERS TO DIRECT RVNOFT '0 THE NORTH SIDE OF THE BUILDING.
THE STORMWATER WILL SHEE FLOW ACROSS A GRASSED OPEN SPACE
(35') INTO A DRAINAGE SWA•E TO BE CONSTRUCTED ALONG THE NORTH
PROPERTY LINE.
2. INFILTRATION BASIN DECO, _ATA:
A. TOP OF BASIN ELEV. = E
B. BOTTOM OF BASIN ELE1. + `_."
O SIDE SLOPES = '"
D. BASIN VOLUME - 2, 600 CUBIC FEET
E. TOTAL IMPERVIOUS AREA GRAINING TO BASIN - 13,550 FT.2
F. VOLUME GENERATED FROM MPERAOUS SURFACES BY 1 INCH OF
RAINFALL - 1,129 CUBIC FEE'.
3, NOTE: THERE ARE NO DIRECT CONNECTIONS (OF THIS DRAINAGE
SYSTEM) TO SAWYER CREEK. WHICH IS A TRIBUTARY OF THE PASQUOTANK
RIVER.
F.F. ELEV. a 8.8' MSL
y/
PRE -CAST SLOTTED CURB
NOT TO SCALE
FLOW
NO.5 WA
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WASTEWATER DISPOSAL SYSTEM SPECIFICATIONS
A. SEPTIC TANK
1. PRE -CAST CONCRETE TANK SHALL BE CONSTRUCTED IN
ACCORDANCE WITH THE PLANS APPROVED BY THE N.C.
DIVISION OF ENVIRONMENTAL HEALTH AND SHALL
COMPLY WITH 15A NCAC 18A.1954 AS AMENDED THRU
APRIL 1, 1993.
2. A MINIMUM 28-DAY CONCRETE COMPRESSIVE STRENGTH
OF 3,500 PSI SHALL BE USED.
3. TANKS MANUFACTURED IN TWO SECTIONS SHALL BE
JOINED AND SEALED AT THE JOINT BY USING A
MASTIC, BUTYL RUBBER OR OTHER PLIABLE SEALANT
THAT 15 WATERPROOF, CORROSION -RESISTANT AND
APPROVED FOR USE IN SEPTIC TANKS.
4. TANK ACGFSS OPENINGS, CONCRETE RISERS AND LIDS
SHALL BE PROVIDED AS NECESSARY TO ALLOW TANK
ACCESS LIDS TO BE AT FINAL GRADE. EACH CONCRETE
LID SHALL. HAVE AT LEAST ONE NO. 3 REBAR HANDLE.
5. GROUT ALL LOCATIONS WHERE PIPES EXIT THE TANKS
WITH NON -SHRINK WATER -PROOF GROUT.
6. EXCAVATION SHALL BE BRACED AND SHEETED AS SOIL
CONDITIONS DICTATE AND SHALL BE DEWATERED UNTIL
INSTALLATION OF TANK MP S COMPLETE
LEAKAGE TEST (IF REQUIRES BY THE REGIONAL
HEAL-TH DEPARTMENT
A. NOTIFY ENGINEER 1-3 DAYS PRIOR TO BEGINNING
TEST,
B. REMOVE SUFFICIENT WATER FROM TANK SUCH THAT
THE WATER LEVEL IS AT LEAST 6 INCHES BELOW
THE JOINT BETWEEN THE 2 TANK SECTIONS.
C. MEASURE WATER LEVEL IN TANK.
D. MEASURE WATER LEVEL IN TANK 24 HOURS LATER.
E. MAXIMUM RISE IN WATER LEVEL SHALL BE ONE-
HALF (1/2) INCH.
8. PROTECT TANKS FROM CAMAGE BY HEAVY EQUIPMENT AND
VEHICULAR TRAFFIC.
9. BACKFILL WITH MATERIAL FREE FROM DEBRIS; COMPACT
TO AT LEAST 90% OF MAXIMUM DRY DENSITY.
10, GRADE SITE TO PREVENT LONGING OF WATER ABOVE
TANK.
B. GRAINFIELD
1. INSTALL DISTRIBUTION BOX ON LEVEL AND COMPACTED
MATERIAL AND AS SHOWN ON THE SITE PLAN IN THE
DETAILS.
2, INSTALL DRAINFIELD IN ACCORDANCE WITH 15A NCAG
18A.1900 AS AMENDED THIRD APRIL 1, 1993,
3. SCARIFY NATURAL SOIL AT 3 TO 6 INCHES BELOW
REPLACEMENT DEPTH PRIOR TO PLACING FILL MATERIAL
IN DRAINFlELD TRENCH AREA.
NOTIFY ENGINEER FOR INSPECTION PRIOR TO PLACING
BACKFlLL IN TRENCHES.
4. FILL MATERIAL SHALL BE TYPE I AS APPROVED BY THE
REGIONAL HEALTH DEPARTMENT PRIOR
TO PLACEMENT. COMPACTION SHALL BE MINIMIZED TO
THE EXTENT PRACTICABLE.
5. TRAFFIC SHALL BE PROHIBITED ON DRAINFlELD AND
SIDE SLOPES.
6. VEGETATIVE COVER SHALL BE ESTABLISHED AND
PROPERLY MAINTAINED BY THE OWNER.
7. SIDE SLOPES SHALL BE 3'1 (HORIZONTAL TO
VERTCAL) MAXIMUM.
8. PROVIDE SUFFICIENT FILL MATERIAL TC ALLOW FINAL
GRADE TO EXTEND AT LEAST 5 FEET BEYOND EDGE OF
TRENCH BEFORE SLOPING TO NATURAL GRADE.
C. OPERATION AND MAINTENANCE
1. THE OWNER WILL BE RESPONSIBLE FOR PROPERLY
MAINTAINING THE WASTEWATER SYSTEM.
2, TANK SHOULD BE CHECKED ANNUALLY FOR ACCUMULATION
OF SCUM AND/OR SLUDGE DEPTH AND FOR GENERAL
CONDITION OF THE TANK AND COMPONENTS. SEPTIC
TANK SHOULD BE PUMPED OUT WEN SLUDGE DEPTH
REACHES 25X-35% OF LIQUID DEPTH UNLESS BUILDUP
PROBLEMS WTH THE COLLECTION PIPE WARRANTS MORE
FREQUENT PUMPING.
3. DRAINFlELD AND DISTRIBUTION BOX SHOULD BE
CHECKED EVERY SIX MONTHS FOR EROSION AND
SURFACING OF EFFLUENT. ROUTINE MOWNG SHOULD BE
PERFORMED.
D. GENERAL
1. PIPELINE CROSSINGS - W/ENEVER A WATERLINE
CROSSES OVER A WASTEWATER PIPE, THE BOTTOM OF
THE WATERLINE SHALL BE 18' ABOVE THE TOP OF THE
WASTEWATER PIPE. IF THE 18' SEPARATION CANNOT
BE MAINTAINED, OR IF THE WATERLINE MUST CROSS
BELOW THE WASTEWATER PIPE, THEN BOTH WATERLINE
AND WASTEWATER PIPE SHALL BE CONSTRUCTED OF
DUCTILE IRON MATERIALS WTH JOINTS EQUIVALENT TO
WATERLINE STANDARDS FOR A DISTANCE OF 10 FEET ON
EACH SIDE OF THE POINT OF CROSSING. A SECTION
OF WATERMAIN PIPE SHALL BE CENTERED AT THE POINT
OF CROSSING.
2. LATERAL SEPARATIONS - WASTEWATER PIPES SHALL BE
LAID AT LEAST 10 FEET LATERALLY FROM EXISTING OR
PROPOSED WATERMAINS, UNLESS LOCAL CONDITIONS OR
BARRIERS PREVENT A 10 FOOT LATERAL SEPARATION IN
WHICH CASE:
A. THE WASTEWATER PIPE IS LAID IN A SEPARATE
TRENCH, WTH THE ELEVATION OF THE BOTTOM OF
THE WATERMAN AT LEAST 18 INCHES ABOVE THE
TOP OF THE FORCEMAIN; OR
B. THE WASTEWATER PIPE IS LAID IN THE SAME
TRENCH AS THE WATERMAIN WTH THE FORCEMAIN
LOCATED AT ONE SIDE OF A BENCH OF
UNDISTURBED EARTH, AND WITH THE ELEVATION
OF THE BOTTOM OF THE WATERMAN AT LEAST 18
INCHES ABOVE THE TOP OF THE FORCEMAIN.
3. SETBACKS IN ACCORDANCE WITH 15A NCAC 18A.1950
SHALL BE MAINTAINED; SUCH SETBACKS FOR TREATMENT
AND DISPOSAL SYSTEMS INCLUDE BUT ARE NOT LIMITED
TO THE FOLLOWING:
A. PUBLIC WELL - 100 FEET
B. PRIVATE WELL - 1DO FEET OR AS REQUIRED BY
CCHD
C. BUILDING - 5 FEET
D. PROPERTY LINE- 10 FEET
E. WATERLINE - 10 FEET
F. ANY OTHER NITRIFICATION FIELD - 20 FEET
SETBACKS FOR COLLECTION SEWERS INCLUDE THE FOLLOWING:
A. PUBLIC WELL - 100 FEET UNLESS CONSTRUCTED
OF DIP NTH MECHANICAL JOINTS EQUIVALENT TO
WATERMAIN STANDARDS IN WHICH CASE THE
MINIMUM SETBACK IS 50 FEET,
B. PRIVATE WELL - 50 FEET UNLESS CONSTRUCTED
OF DIP WIN MECHANICAL JOINTS EQUIVALENT TO
WATERMAN STANDARDS IN WHICH CASE THE
MINIMUM SETBACK IS 25 FEET.
C. PROPERTY LINE - 5 FEET
D. ANY OTHER NITRIFICATION FIELD - 5 FEET
4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LOCATING
AND AVOIDING DESTRUCTION OF ALL E10STING
UTILITIES IN THE VICINITY OF THE WORK.
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