SW3230303_Stormwater Narrative_20230613

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Figure1–GeneralVicinityMap
TwelveMileCreekWater Reclamation Facility
UnionCountyWater
N
TwelveMile
CreekWWTPWRF
SOURCE:GOOGLEMAPSNOTTOSCALE

CATAWBANEQUADRANGLE
U.S.DEPARTMENTOFTHEINTERIOR
SOUTHCAROLINA-NORTHCAROLINA
U.S.GEOLOGICALSURVEY
7.5-MINUTESERIES
80°52'30"50'47'30"80°45'
1440000FEET(NC)
2070000FEET(SC)
35°00'35°00'
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460000
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2040000FEET(SC)1470000FEET(NC)
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80°52'30"80°45'
^
ROADCLASSIFICATION
ProducedbytheUnitedStatesGeologicalSurvey
SCALE1:24000
NorthAmericanDatumof1983(NAD83)
Expressway LocalConnector
SOUTH
1 0.5 0 KILOMETERS 1 2
WorldGeodeticSystemof1984(WGS84).Projectionand
CAROLINA
1000-metergrid:UniversalTransverseMercator,Zone17S SecondaryHwy LocalRoad
7°32´
1000 500 0 METERS 1000 2000
10000-footticks:SouthCarolinaCoordinateSystemof1983,134MILS
GN
Ramp
4WD
1 0.5 0 1
NorthCarolinaCoordinateSystemof1983 0°6´
2MILS
X InterstateRoute USRoute StateRoute
MILES
.
W/H
Thismapisnotalegaldocument.Boundariesmaybe
QUADRANGLELOCATION
1000 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
generalizedforthismapscale.Privatelandswithingovernment
reservationsmaynotbeshown.Obtainpermissionbefore
FEET
UTMGRIDAND2014MAGNETICNORTH
enteringprivatelands.
DECLINATIONATCENTEROFSHEET
1FortMill
CONTOURINTERVAL10FEET
U.S.NationalGrid
Imagery...................................................NAIP,May2011
1 2 3 2Weddington
NORTHAMERICANVERTICALDATUMOF1988
Roads.......................................................HERE,©2013
100,000-mSquareID
3Matthews
Names..........................................................GNIS,2013
4RockHillEast
Hydrography....................NationalHydrographyDataset,2011
4 5
Thismapwasproducedtoconformwiththe
NU
5Waxhaw
Contours............................NationalElevationDataset,2009
NationalGeospatialProgramUSTopoProductStandard,2011.
6Catawba
Boundaries............Multiplesources;seemetadatafile1972-2013
Ametadatafileassociatedwiththisproductisdraftversion0.6.16
7VanWyck CATAWBANE,SC-NC
6 7 8
GridZoneDesignation
8Unity
17S
ADJOININGQUADRANGLES 2014

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LEGEND AND SYMBOLS
Storm Drain Inlets
Drainage Basins
Proposed BUA
TZTUFN!B
Existing Storm Drain
TZTUFN!D
TZTUFN!C
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
Union County
CLIENT:
Prepared by:
Prepared for:
Twelve Mile Creek WRF 9.0 MGD Expansion
PROJECT:
Existing Storm Drains and Drainage Areas
LOCATION:
Twelve Mile Creek WRF Storm Drainage System
055110220330440550
MAP
9101 Southern Pine Blvd. Suite 250
Charlotte, NC 28273
Feet
DATA:
Phone: [phone]
1 inch = 175 feetDATE:May 2023Prepared By:Reviewed By:
HS
Firm NC License # C-0381
HS
H&S Proj. # 30831-061

DA: C3A
A: 0.56 AC
C: 0.48
Tc: 5 min
DA: C1
A: 2.10 AC
C: 0.33
Tc: 5 min
DA: C3B
DA: C3
A: 0.64 AC
A: 0.19 AC
C: 0.64
C: 0.35
Tc: 5 min
Tc: 5 min
DA: C4B
A: 0.82 AC
C: 0.57
Tc: 5 min
DA: C2DA: C4C
A: 0.30 ACA: 0.18 AC
C: 0.73C: 0.34
Tc: 5 minTc: 5 min
DA: C4A
A: 0.17 AC
DA: C2A
C: 0.92
A: 0.35 AC
Tc: 5 min
C: 0.64
Tc: 5 min
DA: C4
LEGEND AND SYMBOLS
A: 0.08 AC
C: 0.35
Tc: 5 min
DA: C5A
Storm Drain Inlets
A: 0.20 AC
C: 0.95
DA: C5
Existing Storm Drain
Tc: 5 min
A: 0.19 AC
C: 0.91
Storm Drainage Basins
Tc: 5 min
12 Mile Topo
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
Union County
CLIENT:
Prepared by:
Prepared for:
Twelve Mile Creek WRF 9.0 MGD Expansion
PROJECT:
Existing Storm Drains and Drainage Areas
LOCATION:
Pre Construction Storm Drainage Areas - System C
02550100150200250
MAP
9101 Southern Pine Blvd. Suite 250
Charlotte, NC 28273
Feet
DATA:
Phone: [phone]
1 inch = 87 feetDATE:May 2023Prepared By:Reviewed By:
HS
Firm NC License # C-0381
HS
F
H&S Proj. # 30831-061

DA: K1
A: 0.138 AC
C: 0.88
Tc: 5 min
DA: J1
A: 0.526 AC
C: 0.49
Tc: 5 min
DA: J2
A: 0.123 AC
C: 0.95
Tc: 5 min
LEGEND AND SYMBOLS
DA J2A
Storm Drain Inlets
A: 0.109 AC
C: 0.90
Existing Storm Drain
Tc: 5 min
Storm Drainage Basins
12 Mile Topo
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
Union County
CLIENT:
Prepared by:
Prepared for:
Twelve Mile Creek WRF 9.0 MGD Expansion
PROJECT:
Existing Storm Drains and Drainage Areas
LOCATION:
Pre Construction Storm Drainage Areas - Systems J & K
012.5255075100125MAP
9101 Southern Pine Blvd. Suite 250
Charlotte, NC 28273
Feet
DATA:
Phone: [phone]
1 inch = 44 feetDATE:March 2023Prepared By:Reviewed By:
HS
Firm NC License # C-0381
HS
F
H&S Proj. # 30831-061

DA: C3A
A: 0.56 AC
C: 0.58
Tc: 5 min
DA: C1
A: 2.10 AC
C: 0.34
Tc: 5 min
DA: C3B
A: 0.64 AC
C: 0.64
Tc: 5 min
DA: C3
A: 0.19 AC
C: 0.35
DA: C4B
Tc: 5 min
A: 0.82 AC
C: 0.57
Tc: 5 min
DA: C2
A: 0.30 AC
C: 0.73
Tc: 5 min
DA: C4C
A: 0.18 AC
C: 0.35
Tc: 5 min
DA: C2A
A: 0.35 AC
C: 0.64
Tc: 5 minDA: C4A
A: 0.17 AC
C: 0.92
Tc: 5 min
DA: C4
A: 0.08 AC
LEGEND AND SYMBOLS
C: 0.89
Tc: 5 min
Storm Drain Inlets
Existing Storm Drain
DA: C5A
A: 0.20 AC
Storm Drainage Basins
C: 0.95
Tc: 5 min
DA: C5
Proposed BUA
A: 0.19 AC
C: 0.91
12 Mile Topo
Tc: 5 min
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
Union County
CLIENT:
Prepared by:
Prepared for:
Twelve Mile Creek WRF 9.0 MGD Expansion
PROJECT:
Proposed Storm Drains and Drainage Areas
LOCATION:
Post Construction Storm Drainage Areas - System C
02550100150200250
MAP #
9101 Southern Pine Blvd. Suite 250
Charlotte, NC 28273
Feet
DATA:
Phone: [phone]
1 inch = 89 feetDATE:May 2023Prepared By:Reviewed By:
HS
Firm NC License # C-0381
HS
F
H&S Proj. # 30831-061

DA: K1
A:0.147 AC
C: 0.89
DA: J1
Tc: 5 min
A:0.526 AC
C: 0.48
Tc: 5 min
DA: J2
A:0.098 AC
C: 0.95
Tc: 5 min
DA J2A
A:0.109 AC
C: 0.90
Tc: 5 min
LEGEND AND SYMBOLS
Storm Drain Inlets
Existing Storm Drain
Storm Drainage Basins
Proposed BUA
12 Mile Topo
Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
Union County
CLIENT:
Prepared by:
Prepared for:
Twelve Mile Creek WRF 9.0 MGD Expansion
PROJECT:
Proposed Storm Drains and Drainage Areas
LOCATION:
Post Construction Storm Drainage Areas - Systems J & K
012.5255075100125
MAP #
9101 Southern Pine Blvd. Suite 250
Charlotte, NC 28273
Feet
DATA:
Phone: [phone]
1 inch = 44 feetDATE:March 2023Prepared By:Reviewed By:
HS
Firm NC License # C-0381
HS
F
H&S Proj. # 30831-061

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Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community
Union County
CLIENT:
Prepared by:
Prepared for:
Twelve Mile Creek WRF 9.0 MGD Expansion
PROJECT:
Future BUA Figure
LOCATION:
Future BUA
055110220330440550MAP
9101 Southern Pine Blvd. Suite 250
Charlotte, NC 28273
Feet
DATA:
Phone: [phone]
1 inch = 175 feetDATE:May 2023Prepared By:Reviewed By:
HS
Firm NC License # C-0381
HS
H&S Proj. # 30831-061

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