SW3161201_6 - Rev SW Permit Plans_3/2/2020

EROSION CONTROL MAINTENANCE PLAN
FEMA FLOOD PLAIN
THE FOLLOWING MAINTENANCE PLAN SHALL BE FOLLOWED UNTIL THE SITE IS COMPLETELY
Wetland
STABILIZED AFTER CONSTRUCTION. DURING CONSTRUCTION, THE CONTRACTOR SHALL BE
(Approx. 6.75 acres)
RESPONSIBLE FOR INSPECTION AND MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL
STRUCTURES.
1. ALL EROSION CONTROL MEASURES SHALL BE CHECKED FOR STABILITY AND OPERATION
FOLLOWING ANY RAINFALL PRODUCING RUNOFF AND AT LEAST ONCE EVERY WEEK. ANY
NEEDED REPAIRS SHALL BE MADE IMMEDIATELY SO THAT ALL EROSION CONTROL MEASURES
ARE MAINTAINED AS DESIGNED.
PROPOSED WET -DETENTION POND, BMP-1
2. SEDIMENT TRAPS AND BASINS SHALL BE CLEANED OUT WHEN THE LEVEL OF SEDIMENT
AT LOCATION OF EXISTING TEMPORARY
REACHES THE MID -DEPTH POINT BELOW THE WEIR ELEVATION. WASHED STONE SHALL BE
SKIMMER BASIN
Creek)
CLEANED OR REPLACED WHEN THE SEDIMENT POOL NO LONGER DRAINS PROPERLY.
3. ALL SEEDED AREAS WILL BE FERTILIZED, RESEEDED AS NECESSARY, AND MULCHED IN
\\�
ACCORDANCE WITHTHE SEEDING SPECIFICATIONS IN ORDER TO MAINTAIN A DENSE
VEGETATIVE
4. SEDIMENT DEPOSITS SHALL BE REMOVED FROM SEDIMENT FENCE AFTER EACH STORM EVENT
SITE
OR SEDIMENT FENCE SHOULD BE REPLACED. SEDIMENT MUST BE REMOVED WHEN
DEPOSITS REACH APPROX. HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS
REMAINING IN PLACE AFTER THE SEDIMENT FENCE IS REMOVED SHALL BE DRESSED TO
LIMITS OF DISTURBED AREA
\
CONFORM TO THE EXISTING GRADE, PREPARED AND SEEDED.
/
5. INSPECT CHECK DAMS AND CHANNELS FOR DAMAGE AFTER EACH STORM EVENT. REMOVE
STEELE
SEDIMENT ACCUMULATED BEHIND THE DAMS AS NEEDED TO PREVENT DAMAGE TO
(SR i i �7) ��
CHANNEL VEGETATION. ADD STONE TO DAMS AS NEEDED TO MAINTAIN DESIGN HEIGHT
P O OS D FUTURE R/W
AND CROSS SECTION.
LIMITS OF DISTURBED AREA
��
y
SHOWN FOR REFERENCE ONLY PHASE 3
�P�G�GF'QO
(FUTURE)
PROPOSED WET POND, BMP-2
AT LOCATION OF EXISTING OR Y
IMMER B,A$IN
epe n 'al R St ea
L C> CAT 1 C3 A
NO SCALE
DRAINAGE AREA BOUNDARY
a�
GENERAL NOTES
/
1.
CONTRACTOR SHALL BE RESPONSIBLE FOR ENSURING THAT ALL CONSTRUCTION IS IN
C�
ACCORDANCE WITH THE RECOMMENDATIONS OF THE ON -SITE GEOTECHNICAL ENGINEER.
2.
GEOTECHNICAL INVESTIGATION SHALL BE PERFORMED PRIOR TO CONSTRUCTION TO
IDENTIFY THE SUITABILITY OF IN -SITU MATERIALS. IF THE INFILTRATION RATE IS IN EXCESS
Wetland (Approx. 6.75 acr
OF 0.01 IN/HR, A CLAY LINER SHALL BE INSTALLED.
((
l\ Y
3.
EMBANKMENT FILL SHALL BE PLACED IN MAXIMUM UNCOMPACTED LIFTS OF 8 INCHES.
PHASE 2
FILL MATERIAL SHALL BE APPROVED BY GEOTECHNICAL ENGINEER AND OBTAINED EITHER
ON -SITE OR FROM A SUITABLE OFF -SITE LOCATION. ALL FILL MATERIAL SHALL BE FREE OF
PROPOSED 36" RCP CULV T
OBJECTIONABLE DEBRIS, WOOD AND/OR STONES GREATER THAN 4 INCHES.
4.
COMPACT FILL TO A MINIMUM 95% OF THE STANDARD PROCTOR MAXIMUM DRY
DENSITY.
,1�
5.
CONTRACTOR SHALL SUBMIT SHOP DRAWINGS OF THE ALL RISER STRUCTURE
COMPONENTS FOR REVIEW.
6.
RISER BARREL SHALL BE O-RING CLASS III RCP WITH TYPE 4 JOINTS IN ACCORDANCE WITH
ASTM C-76 AND C-443.
FEMA FLOOD PLAIN
r
7.
RISER STRUCTURE JOINTS SHALL BE SEALED USING BUTYL RUBBER SEALANT PER ASTM
C-990. ALL PIPE CONNECTIONS TO THE RISER BOX SHALL BE WATERTIGHT.
8.
OPENINGS FOR OUTLET PIPE AND 2.0" INLET ORIFICE INDICATED ON THE PLANS SHALL BE
CAST INTO RISER UNIT. KNOCKOUTS OR DRILLING IS NOT PERMITTED.
9.
STEPS SHALL BE PROVIDED PER NCDOT STD. NO. 840.66.
CONSERVATION AREA
10.
ANTI -FLOTATION BLOCK SHALL BE CAST AS INTEGRAL PART OF RISER BOX UNIT IF
PRECAST.
11.
ACCESS GRATE/FRAME SHALL BE HEAVY-DUTY ALUMINUM OR STAINLESS STEEL AND
PROVIDED WITH HINGES AND SECURITY HASP SECURED TO CONCRETE RISER BOX.
COORDINATE LOCATION OF HINGES WITH PLACEMENT OF RISER STEP(S).
Perennial RPW Stream
Y'
CONSTRUCTION SEQUENCE
1.
CONTACT THE NORTH CAROLINA DEQ DMLR FOR A PRECONSTRUCTION MEETING AT
LEAST ONE WEEK PRIOR TO BEGINNING CONSTRUCTION.
2.
FLAG WORK LIMITS AND MARK TREES FOR PROTECTION.
3.
INSPECT AND REPAIR CONSTRUCTION ENTRANCE AS REQUIRED.
Intermittent Stream
4.
INSPECT AND REPAIR SILT FENCE AS REQUIRED.
CONSERVATION AREA
5.
INSPECT TEMPORARY SILT DTCHES AND DIVERSIONS AND MAKE ANY NEEDED REPAIRS.
6.
UPLAND AREAS DRAINING TO THE BASIN(S) SHOULD BE STABILIZED BEFORE ATTEMPTING
TO CONVERT TEMPORARY BASIN TO PERMANENT STORMWATER MANAGEMENT
CONTROL.
7.
DE -WATER AND REMOVE SILT ACCUMMULATIONS FROM EXISTING TEMPORARY
SEDIMENT BASINS. PROPERLY DISPOSE OF ALL SPOIL. GRADE BASIN BOTTOM AND
BEGIN CONSTRUCTION OF EMBANKMENT AND SHAPING OF THE BASIN AND FOREBAY TO
DRAINAGE AREA BOUNDARY
THE DESIGN CONTOURS.
`
8.
INSTALL CONCRETE RISER, OUTLET BARREL, RC FES, RIPRAP APRON AND 8-INCH
DRAWDOWN DRAIN. ATTACH SKIMMER TO INLET END OF DRAWDOWN DRAIN TO
ENABLE NEW POND TO FUNCTION AS TEMPORARY SEDIMENT BASIN. INSTALL OR
REPLACE BAFFLES.
9.
REMOVE TEMPORARY RISER AND PIPE AS SOON AS NEW STRUCTURE IS IN PLACE AND
THE RE -GRADED POND AREA IS ABLE TO INTERCEPT AND CONTROL SEDIMENT -LADEN
RUNOFF.
_
PHASE 1
10.
MINIMIZE THE SIZE AND CONTROL THE OPERATIONS OF CONSTRUCTION EQUIPMENT
WITHIN THE POND AREA.
11.
STABILIZE ALL AREAS WITHIN 7 DAYS OF COMPLETION.
EXISTING DEVELOPMENT
---- -
12.
MAINTAIN NPDES LOG BOOK AS REQUIRED BY GENERAL PERMIT.
- -
STEELE RD (SR
13.
14.
SCHEDULE AN INSPECTION AND APPROVAL BY A REPRESENTATIVE OF THE NORTH
CAROLINA DEQ DMLR SECTION PRIOR TO REMOVAL OF EROSION CONTROL MEASURES.
TEMPORARY EROSION CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL PERMANENT
STABILIZATION HAS BEEN ACHIEVED AND APPROVAL HAS BEEN RECEIVED.
15.
ALL SEDIMENT AND DEBRIS SHALL BE REMOVED FROM BASIN PRIOR TO USE AS A
PERMANENT WET DETENTION BASIN.
Intermittent Seasonal RPW SreaAl
Surveyor
Prr.vidence
Providence Land Group, PLLC
3716 Providence Road South
Waxhaw, North Carolina 28173
704.400.0117
NC Firm #P-0910 - SC COA #4356
e CARO
Off'` ••'••ss'••��
SEAL ��•
;� L-4243 0: w =
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" ��.�.• SURJ.���.,Q' .
J ST\�
Engineer
Richard L. Modlin, PE
7215 Terrace Drive
Charlotte, North Carolina 28211
980.322.4191
CgRO
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14937 ol
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9�a°°°° ° °° o\
11-28-16
This drawing is not to be used for construction
purposes unless the signature of the responsible
registrant is affixed hereon and the appropriate
forms and fees have been sent to the Authority
having jurisdiction by the Owner, Owner's Agent,
or the Contractor.
Client Name
True Homes
2649 Brekonridge Center Drive
Suite 104
Monroe, NC 28110
704.238.1229
Scale
200' 0100' 200'
SCALE: 1" = 200'
Project Name
The Conservancy
at Waxhaw Creek
Phase 2
Union County, North Carolina
Sheet Title
Site Plan
Date Issued For
06-22-19 BMP modifications
Print Date
Nov 28, 2016
Drawn By Checked By
Richard L. Modlin
Job Number I Sheet Number
Rev
1
16079
Drawing File SWP_1
Conservancy.dwg

18" RC FES
'TRF%q/�je
20 LF 18"
O-RING
RCP @ 0.50%
pR
OAFRTye F
j
RIPRAP APRON
18" RC FES
W1 = 5' W2 = 12'
Dso = 4" Dmax = 6"
T = 12"
20' EMERGENCY SPILLWAY ELEV 523.90
\
`
use filter fabric
20' EMERGENCY SPILLWAY ELEV 553.40
/
5' 5' CONC RISER
x
51 LF 18" O-RING RCP @ 0.50%
VEGETATIVE FILTER
(EXISTING WOODED AREA
@ 5% SLOPE)
12 LF 8" DIP DRAWDOWN DRAIN
Sso
PROPEl�TY80I
13 LF 8" DIP DRAWDOWN DRAIN
EXISTING TEMPORARY SEDIMENT
BASIN RISER, &SKIMMER
525
J NDgRY
TOBE REMOVED.
PROP. MAINTENANCE ACCESS
"------- ----__
CONST. 10-FT-WIDE STABILIZED
---------__,__
'
-DRIVEWAY OF 8" COMPACTED ABC
��^ ��
RIPRAP APRON
La = 1 0'
W1 = 5' W2 = 12'
Dso = 4" Dmax = 6"
T = 12"
use filter fabric
PROP. MAINTENANCE ACCESS
CONST. 10 FT WIDE STABILIZED
DRIVEWAY OF 8" COMPACTED ABC
i
/ ;';' ;'
�' ;'
,/
�� EXISTING TEMPORARY SEDIMENT
BASIN RISER, BARREL & SKIMMER
TO BE REMOVED.
5' x 5' CONC RISER
FOREBAY
w
,
/
U
/
15" RCP CULVERT / r/
=O
FOREBAY
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42" RCP
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PROP 0' P V SLI c
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BMP=l
BMP=2
Surveyor
Pr� . Srid ence
Providence Land Group, PLLC
3716 Providence Road South
Waxhaw, North Carolina 28173
704.400.0117
NC Firm #P-0910 — SC COA #4356
�N CARO
••'••ss'••�� ,
�oF L /oti •
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L-4243 0: w =
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J ST�K
Engineer
Richard L. Modlln, PE
7215 Terrace Drive
Charlotte, North Carolina 28211
980.322.4191
This drawing is not to be used for construction
purposes unless the signature of the responsible
registrant is affixed hereon and the appropriate
forms and fees have been sent to the Authority
having jurisdiction by the Owner, Owner's Agent,
or the Contractor.
Client Name
True Homes
2649 Brekonridge Center Drive
Suite 104
Monroe, NC 28110
704.238.1229
Scale
60' 030, 60'
SCALE: 1 " = 30'
Project Name
The Conservancy
at Waxhaw Creek
Phase 2
Union County, North Carolina
Sheet Title
Enlarged BMP
Plans
Date Issued For
06-22-19 BMP modifications
Print Date
Nov 28, 2016
Drawn By Checked By
Richard L. Modlin M. Jay Stikeleather
Job Number Sheet Number
Rev
1
16079
Drawing File SWP-2
Conservancy.dwg

Planting Procedures
1. Conform to all applicable specifications for plantings of trees and shrubs, as detailed in NCDEQ
Stormwater Design Manual Chapter 6.
2. Lay out all plants according to species mixes, and at specified spacings and densities. Herbaceous
emergents, grasses and sedges for Zones 1, 2 and 3 are often best laid out at regular spacing in a
recognizable pattern. Regular spacings are easier to evaluate and provide for more uniform and rapid
coverage.
3. Plantings in Zones 4, 5 and 6 should also be laid out according to the species mixes, and at the specified
spacings and densities, but appear more natural when a "random" pattern of spacings are used, for
between plants is necessary for adequate coverage.
4. Mulching for herbaceous emergents located in areas which will be permanently or regularly inundated is /
not desirable. Plantings in Zones 4, 5 and 6, shall be mulched.
5. Plants must receive at least an inch of water from rainfall each week, or when soils in which herbaceous
emergent plants are located are no longer in a saturated state, it will be necessary to water the plantings. \
6. Vary watering depending upon the age of the plants and environmental conditions as required. Once /
established, no watering is anticipated.
7. Potable water is the preferred source of water. Other sources such as water trucks, or water pumped
from safe sources, may be used provided that they are known to be free of impurities and that the salinities
are suitable for the species being grown. \
8. Moisture metering shall be employed and maintained by the landscape professional to monitor watering
requirements.. /
Weed and Invasive Species Control
1. Invasive plant species populations shall be controlled throughout the course of the work. Where bare
ground exists, and where mud flats exist in drawn down wet planting zones, invasive species such as
Japanese Hops, Porcelainberry and other noxious weeds can easily gain a foothold, quickly displacing the
desirable plantings, leading to a partial failure of the planting site.
2. An integrated pest management (IPM) approach is recommended for control of invasive plant species.
Monitoring for the presence of invasive species is a component of a BMP establishment program.
Maintenance, including the removal of invasive plant species, is critical to the success of the plantings,
preventing the spread of those species downstream of the BMP as well.
3. Some weeds may be removed with herbicides using the "glove technique."
Herbivore Control
1. Minimize potential damage to planted vegetation by local wildlife, especially geese and deer.
Delivery, Handling and Storage
1. All plants shall be fresh and healthy, and be delivered to the site with their rootstocks preserved in similar
conditions to those in the growing nursery.
2. Trees and shrubs shall be left natural and unpruned prior to delivery. Bark, branches, and root systems
shall be protected from sun scald, drying, wind burn, sweating, whipping, and other handling and tying
damage which destroys their natural shape. Protective covering for plants shall be provided during
shipping and delivery.
3. Store bulbs, corms, tubers and rhizomes in conditions similar to those in the growing nursery, at
approximately 50 to 65 °F, until planting.
4. Deliver plants after preparations for planting have been completed, and install immediately.
5. If planting is delayed, set plants in the appropriate exposure for each species (sun, filtered sun, or shade),
protect from weather and mechanical damage, and keep roots moist. Depending on the length of delay,
plants may need to be heeled in.
6. Do not remove container grown stock from containers before time of planting, and water as often as
necessary to maintain root systems in a moist condition.
7. A two-year warranty period shall be required for all plantings. At the end of the first year and again at the
end of the two-year warranty period, all plants that do not survive must be replaced. Establishment
procedures, such as control of invasive weeds, animal and vandal damage, mulching, re -staking, watering
and mesh or tube protection replacement, shall be implemented to the extent needed to ensure plant
survival.
Existing Vegetation Management
1. Identify and protect significant populations of, and individual specimens of trees and shrubs. This shall
include incorporating vegetation protection measures into initial erosion and sediment control plans.
2. Locate/identify invasive species and eradicate them prior to beginning site clearing, or other land disturbing
operations.
3. Never chip and redistribute chipped plant parts from clearing operations when invasive species are
present.
Soil Preparation
1. Perform soil testing for existing and prepared soils to be used for planting to determine types of soil
amendments required to bring soil to within the correct ranges for optimum plant growth. These tests may
include pH, major soil nutrients, including Nitrogen (N), Phosphorus (P) and Potassium (K) and organic
content
2. If soils are amended, a second soil test is needed prior to planting. If imported soil is used, a manufacturer
certification is required.
3. Remove all construction debris prior to placement of any topsoil.
4. If areas around the BMP are disturbed due to construction, the top 6 to 8 inches of the affected area(s)
shall be tilled and proper soil mix applied in horizontal layers not exceeding 12 inches. Placement of soils
shall not be done when soils are saturated. Restrict construction traffic from areas of soil
mixing/placement.
3. Topsoil should be spread to a depth of eight to twelve inches (deeper for balled and burlaped trees) and
lightly compacted to minimum thickness of six inches. If topsoil has been stockpiled for a long period of
time, verify and/or adjust the soil pH, and major soil nutrients to achieve the minimum acceptable
standards.
JUDJ I I I U I CU HI !1 rCl11 C VF :JV LD HI.RC)
NO Nymphae odorata White (Native) Water Lily 5,339 #SP4 CG 3' OC
AUG. 15 — DEC 30 RYE (GRAIN) — 120 LB/ACRE
NIL Nuphar luteum Yellow Cowlily 8,008 #SP4 CG 0.5' OC
SOIL AMENDMENTS:
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND
AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10 FERTILIZER
MULCH:
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING,
OR A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE
USED AS A MULCH ANCHORING TOOL
MAINTENANCE:
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, FERTILIZE AND MULCH
IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE
PERMANENT SEEDING SCHEDULE FOR EMBANKMENT
SEEDING DATES MIXTURE/APPLICATION RATES
AUG. 15 — OCT. (PREFERRED) TALL FESCUE — 200/LBS/AC
FEB — APR 15 (POSSIBLE)
SOIL AMENDMENTS:
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND
AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10 FERTILIZER
MULCH:
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING,
OR A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE
USED AS A MULCH ANCHORING TOOL
MAINTENANCE:
INSPECT AND REPAIR/REPLACE FREQUENTLY. REFERTILIZE IN LATE WINTER THE
FOLLOWING YEAR' USE SOIL TESTS OR APPLY 150 LB/AC 10-10-10 FERTILIZER.
MOW REGULARLY TO HEIGHT OF 2-4 INCHES.
Zone
IV
Iris virginica
Southern Blue Flag
592
2"
DIA x 5"
PLUG
1'
OC
PC
Pontederia cordata
Pickerelweed
710
2"
DIA x 5"
PLUG
1'
OC
SC
Saururus cernuus
Lizard's Tail
533
2"
DIA x 5"
PLUG
2'
OC
Zone 3
IC
Impatiens capensis
Jewelweed
901
2"
DIA x 5"
PLUG
2'
OC
JE
Juncus effusus
Soft Rush
3,120
2"
DIA x 5"
PLUG
0.5'
OC
PV
Panicum virgatum
Switchgrass
2,201
2"
DIA x 5"
PLUG
1'
OC
SV
Scirpus validus
Softstem Bulrush
1,126
2"
DIA x 5"
PLUG
2'
OC
Zone 4
AA
Aronia Arbutifolia
Red chokeberry
78
THIGH
CG
6'-6"
OC
SS
Schizachyrium scoparium
Little Bluestem
2,967
2"
DIA x 5"
PLUG
1'-6' OC
Surveyor
Pr� . Srid ence
Providence Land Group, PLLC
3716 Providence Road South
Waxhaw, North Carolina 28173
704.400.0117
NC Firm #P-0910 — SC COA #4356
�N CARp
SS/0 ,
SEAL ��•
;7 L-4243 IL-:w =
:•?a
��..• SURJ.���,Q .
J S-T
Engineer
Richard L. Modlin, PE
7215 Terrace Drive
Charlotte, North Carolina 28211
980.322.4191
CARO ,
.Z
Es i ti� as
l0
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��GINEeoo ���
y�ooaoaoaa0000
O'D
'" L. M 11,10 11-28-16
This drawing is not to be used for construction
purposes unless the signature of the responsible
registrant is affixed hereon and the appropriate
forms and fees have been sent to the Authority
having jurisdiction by the Owner, Owner's Agent,
or the Contractor.
Client Name
True Homes
2649 Brekonridge Center Drive
Suite 104
Monroe, NC 28110
704.238.1229
Scale
60' 0' 30, 60'
SCALE: 1 " = 20'
Project Name
The Conservancy
at Waxhaw Creek
Phase 2
Union County, North Carolina
Sheet Title
BMP Planting
Plans
Date Issued For
05-09-19 BMP modifications
Rev
1
Print Date
Nov 28, 2016
Drawn By
Checked By
Richard L. Modlin
M. Jay Stikeleather
Job Number
Sheet Number
16079
SWP-3
Drawing File
Conservancy.dwg

Surveyor
Pr� . Srid ence
Providence Land Group, PLLC
3716 Providence Road South
Waxhaw, North Carolina 28173
704.400.0117
NC Firm #P-0910 — SC COA #4356
�N CARp
SS/0 ,
SEAL ��•
;7 L-4243 0; w =
SURJ.���,Q .
J ST\�
Engineer
Richard L. Modlin, PE
7215 Terrace Drive
Charlotte, North Carolina 28211
980.322.4191
,,,, J 1 1 4 , , ,
�N CAR
°°i
° z10
EAL 4937
,0<1 000 G I N—oo Z
9�0000°o°° p�
L. MO
11-28-16
This drawing is not to be used for construction
purposes unless the signature of the responsible
registrant is affixed hereon and the appropriate
forms and fees have been sent to the Authority
having jurisdiction by the Owner, Owner's Agent,
or the Contractor.
Client Name
True Homes
2649 Brekonridge Center Drive
Suite 104
Monroe, NC 28110
704.238.1229
Scale
100' 0' 50' 100'
SCALE: 1 " = 100'
Project Name
The Conservancy
at Waxhaw Creek
Phase 2
Union County, North Carolina
Sheet Title
Pre -Development
Drainage Area Map
Date Issued For Rev
Print Date
Nov 28, 2016
Drawn By Checked By
Richard L. Modlin M. Jay Stikeleather
Job Number Sheet Number
16079
Drawing File SWP-4
Conservancy.dwg

Surveyor
Pr� . Srid ence
Providence Land Group, PLLC
3716 Providence Road South
Waxhaw, North Carolina 28173
704.400.0117
NC Firm #P-0910 — SC COA #4356
�N CARp
SS/0 ,
SEAL ��•
;7 L-4243 0; w =
SURJ.���,Q .
J ST\�
Engineer
Richard L. Modlin, PE
7215 Terrace Drive
Charlotte, North Carolina 28211
980.322.4191
CgRO
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AL =
o 1 937 oo
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o o0o I NE�Q as
y�O
L. MO
irrr11111"\ 11-28-16
This drawing is not to be used for construction
purposes unless the signature of the responsible
registrant is affixed hereon and the appropriate
forms and fees have been sent to the Authority
having jurisdiction by the Owner, Owner's Agent,
or the Contractor.
Client Name
True Homes
2649 Brekonridge Center Drive
Suite 104
Monroe, NC 28110
704.238.1229
Scale
100' 0' 50' 100'
SCALE: 1 " = 100'
Project Name
The Conservancy
at Waxhaw Creek
Phase 2
Union County, North Carolina
Sheet Title
Post -Development
Drainage Area Map
Date Issued For
05-09-19 BMP modifications
Print Date
Nov 28, 2016
Drawn By Checked By
Richard L. Modlin M. Jay Stikeleather
Job Number Sheet Number
Rev
1
16079
Drawing File SWP-5
Conservancy.dwg

v?�
6-1
ELEV 522.50 \\
ELEV 521.50
HINGED ALUMINUM ^^^=cc r-oAT=iTOAcu oAw
WITH SQUARE OPE
WATER QUALITY SIPF
8" DIP DRAWDOWN DI
ANTI-PiOTATI-.. L/L _I.
FOREBAY
ELEV. 518.0
SED STOR
( I_I. I I=l I E,
OUTLET STRUCTURE- SECTION
TOP ELEV 523.90
5' x 5' CONCRETE RISER —\
50-YR WATER SURFACE ELEV 523.82 6' 10'
VEGETATED
SHELF
25-YR WATER SURFACE ELEV. 523.75
10-YR WATER SURFACE ELEV 523.66 ELEV. 525.0
WQv WATER SURFACE ELEV 523.18
(1-YR 24-H0UR STORM)
ELEV 523 \�'. j
0 PERMANENT POOL ELEV. 522.00
TOP OF VEGETATED SHELF ELEV 522.50
r?
(V 4' WEIR ELEV 523.40
WQv SIPHON (SEE DETAIL THIS SHEET) (OPENING ON 2 SIDES)
BOTTOM OF VEGETATED SHELF ELEV 521.50
---------------------------------------------------------
NOT TO SCALE
36
ELEV. 518.0
1T1.0' SEDIMENT STORAGE
8" DIP DRAWDOWN DRAIN
WQv ORIFICE ELEV 522.00
SECTION THRU EMBANKMENT
BMP-1
18" O-RING RCP BARREL
INV. ELEV 520.0
ANTI -FLOTATION BLOCK
4' WEIR OPENING 4'
STEPS PER NCDOT STD. 840.66
5' x 5' CONCRETE RISER
8" DIP DRAWDOWN DRAIN
WITH TRASH RACK AT
INLET OPENING 1.5' 1.5'
N
WATER QUALITY SIPHON 18" 0—RING RCP BARREL
41
1.5'
ANTI -FLOTATION BLOCK
4' WEIR OPENING
PLUG VALVE & HAND WHEEL
PER AWWA C504 SECT. 5.5
OUTLET STRUCTURE- PLAN
NOT TO SCALE
4" PVC ADAPTOR SPC
WITH SCREW -TYPE PLUG
N
4" x 2" PVC REDUCER
20'
ELEV. 525.0
ELEV. 524.00
I\=�
EMERGENCY SPILLWAY
18" RC FLARED END SECTION
INV ELEV. 519.88
RIP RAP APRON
NOT TO SCALE
oioMo
WATER QUALITY SIPHON
MR
ORIFICE INV ELEV 522.00
NOT TO SCALE
Surveyor
Pr� . Srid ence
Providence Land Group, PLLC
3716 Providence Road South
Waxhaw, North Carolina 28173
704.400.0117
NC Firm #P-0910 — SC COA #4356
�N CARO
O••'••ss'••�� ,
SEAL ��•
L-4243 0? w =
/Z
��..• sURJ.W .
J ST\�
Engineer
Richard L. Modlin, PE
7215 Terrace Drive
Charlotte, North Carolina 28211
980.322.4191
,,, I A 1141,,,
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, M 11-28-16
This drawing is not to be used for construction
purposes unless the signature of the responsible
registrant is affixed hereon and the appropriate
forms and fees have been sent to the Authority
having jurisdiction by the Owner, Owner's Agent,
or the Contractor.
Client Name
True Homes
2649 Brekonridge Center Drive
Suite 104
Monroe, NC 28110
704.238.1229
Scale
NOT TO SCALE
Project Name
The Conservancy
at Waxhaw Creek
Phase 2
Union County, North Carolina
Sheet Title
Stormwater
Management
Details
BMP-1
Date Issued For
05-09-19 BMP modifications
Print Date
Nov 28, 2016
Drawn By
Checked By
Richard L. Modlin
M. Jay Stikeleather
Job Number
Sheet Number
16079
SWP-6
Drawing File
Conservancy.dwg

ETOPELEV 550.00
5' x 5' CONCRETE RISER
50-YR WATER SURFACE ELEV 549.88
25-YR WATER SURFACE ELEV. 549.80
10-YR WATER SURFACE ELEV 549.67
WQv WATER SURFACE ELEV 548.84
(1-YR 24-H0UR STORM)
` .,7 ELEV 547.50
ELEV 546.00
6:1 �f 0 PERMANENT POOL ELEV. 546.5
ELEV 547.00 = \� FOREBAY WQv SIPHON (SEE DETAIL THIS SHEET)
ELEV 542.0
1.0' SEDIMENT STORAGE ELEV 542.0
1.0' SEDIMENT STORAGE
8" DIP DRAWDOWN DRAIN
WQv ORIFICE ELEV 546.50
HINGED ALUMINUM "^^Mcc noATC/TOAcu MAnv
WITH SQUARE OPE
WATER QUALITY SIPF
8" DIP DRAWDOWN DI
ANTI-PiOTATI-.. L/L _I.
OUTLET STRUCTURE- SECTION
NOT TO SCALE
36
5' x 5' CONCRETE
8" DIP DRAWDOWN DRA
WITH TRASH RACK)
INLET OPENII`
WATER QUALITY SIPHON
ANTI -FLOTATION E
6'
VEGETATED
�H�CF
10,
ELEV. 551.5
1-1 I 1=1 11-
6
TOP OF VEGETATED SHELF ELEV 547.00
I - 4' WEIR ELEV 552.60
ON TWO SIDES
BOTTOM OF VEGETATED SHELF ELEV 546.00
II_III=11
INV. ELEV 542.0
ANTI -FLOTATION BLOCK
SECTION THRU EMBANKMENT
B M P-2
4'
F'LUU VALVt & HAINU VVFittL
PER AWWA C504 SECT. 5.5
OUTLET STRUCTURE- PLAN
NOT TO SCALE
141-11
18" O-RING RCP BARREL
4" PVC ADAPTOR SPC
WITH SCREW -TYPE PLUG
N
4" x 2.0" PVC REDUCER
20'
550.00
)�
EMERGENCY SPILLWAY
18" RC FLARED END SECTION
INV ELEV 541.5
RIP RAP APRON
mlc =
ELEV. 551.50
Surveyor
Pr� . Srid ence
Providence Land Group, PLLC
3716 Providence Road South
Waxhaw, North Carolina 28173
704.400.0117
NC Firm #P-0910 — SC COA #4356
�N CARO
••'••ss'••�� ,
PROPERTY BOUNDARY - SEAL
L-4243 0; w =
��..• SURJ.���,Q .
NOT TO SCALE
WATER QUALITY SIPHON
MR
12'
100,
VEGETATED
FILTER
ORIFICE INV ELEV 546.50
NOT TO SCALE
Engineer
Richard L. Modlin, PE
7215 Terrace Drive
Charlotte, North Carolina 28211
980.322.4191
This drawing is not to be used for construction
purposes unless the signature of the responsible
registrant is affixed hereon and the appropriate
forms and fees have been sent to the Authority
having jurisdiction by the Owner, Owner's Agent,
or the Contractor.
Client Name
True Homes
2649 Brekonridge Center Drive
Suite 104
Monroe, NC 28110
704.238.1229
Scale
NOT TO SCALE
Project Name
The Conservancy
at Waxhaw Creek
Phase 2
Union County, North Carolina
Sheet Title
Stormwater
Management
Details
BM P-2
Date Issued For
05-09-19 BMP modifications
Print Date
Nov 28, 2016
Drawn By
Checked By
Richard L. Modlin
M. Jay Stikeleather
Job Number
Sheet Number
16079
SWP-7
Drawing File
Conservancy.dwg