12_NCS000250_Summary of Approved Retrofit Credits

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
D01 CO27 0001
IM-1-27-S-1288
Currituck
1
Swale
1
36.4528084
-76.0756302
R-4436 AA
168/34
NC
Sligo
At Intersection of NC168 and NC34
1
'Wet Vault' is a proprietary structure with
filter cartridges. Device is maintained by the
In public beach access parking lot at NC 12
Town of Nags Head This device may have
D01 CO28 0001
IM-1-28-WV-2479
Dare
1
Wet Vault
1
35.9649506
-75.6283188
N/A
12
NC
Nags Head
and Conch Street in Nags Head.
been decommissioned in Summer 2017
2
Town of Manteo is the owner and will
Stormwater
US 64/264 Business & Greenville
maintain device. NCDOT was a partner and
D01 CO28 0003
IM-1-28-SW-2383
Dare
1
Wetland
1
35.9022102
-75.6707382
R-4436 AC
64
US
Manteo
St/Bowsertown Road
gets the Retrofit Credit.
3
Partnership project with the Town of Kitty
Hawk. NCDOT contributed $30,000. Project
includes 840LF of living shoreline. Project
construction was administered by the
Municipality. Exact construction dates not
known by DOT at this time. Planting of 7,000
Juncus plugs occurred the week of June 26,
Living Shore
pile sills located offshore along Moor Shore
2019. Maintenance is the responsibility of
D01 CO28 0005
IM-1-28-LSL-3604
Dare
1
Line
1
36.059559
-75.697825
N/A
1216
SR
Kitty Hawk
Rd
the Municipality.
4
Bioretention
D01 C046 0001
IM-1-46-BB-1297
Hertford
1
Basin
1
36.4428101
-77.0874023
R-4436 AB
258
US
Murfreesboro
In the traffic island @ US 258 & US 158E
1
Washington County Rest Area in Plymouth;
REST AREA; Maintenance of the concrete
Permeable
Permeable Interlocking Concrete Pavers
pavers will be handle through rest area staff.
D01 C094 0001
IM-1-94-PP-3189
Washington
1
Pavement
1
35.865087
-76.725922
K-5000
US 64
US
Plymouth
located on both sides of the building
REH
3
Basin is located on Town property and is
owned, operated and maintained by the
Town of Southern Shores. Basin was part of a
larger project that included 3 additional
smaller basins in the NW corner along E.
Dogwood. Project was a partnership project
and treats drainage from NC 12, thus the
Infiltration
SE corner of intersection of NC 12 and E.
retrofit credit. DO NOT DELETE FROM THE
D01 C-28 0004
IM-1-28-I13-3509
Dare
1
Basin
1
36.128729
-75.729478
N/A
12
NC
Southern Shores
Dogwood Trl.
SCMS SYSTEM. - B. LIPSCOMB
4
Originally designed and built as an infiltration
basin with sod. In 2009 basin had underdrain
installed and was mulched and planted, due
Located in front of Smyrna Elementary
to no survival of the sod. Therefore by DOT
Bioretention
School. Runs parallel to SR 1347
naming convention this device is now a
D02 CO16 0001
IM-2-16-1313-2392
Carteret
2
Basin
1
34.7575798
-76.5277634
R-4436BD
1347
SR
Smyrna
(Marshallberg Rd.).
Bioretention Basin
2
Located within PDE perpendicular to NC 24,
Infiltration
approx. 485ft East of Cedar Point
D02 CO16 0005
IM-2-16-I13-3188
Carteret
2
Basin
1
34.685736
-77.080821
R-4436BF
NC 24
NC
Cedar Point
Commercial Ct.
3
Page 1 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
REST AREA; Basin has been rebuilt and has
been retrofitted with floating wetland islands
When basin was constructed in 1994 the
water table was too high to allow infiltration,
the basin has served more as a pond.
Floating wetland islands have been
Floating
Stormwater Wetland in rest area parking
retrofitted into the pond therefor the control
D02_CO16_0006
IM-2-16-FWI-1304
Carteret
2
Wetland Island
1
34.7231102
-76.7503204
70
US
Morehead City
behind brick building
type has changed to be such in SCMS.
3
Bioretention
Off of Exit Ramp NE of the intersection of US
D02_CO25_0001
IM-2-25-BB-1312
Craven
2
Basin
1
35.1048698
-77.083847
R-4436 BA
US 70/US 17 Bus
US
New Bern
70/US 17 Bus
1
Across From Outback and Bridgestone Hotel
D02 CO25 0002
IM-2-25-FB-1313
Craven
2
Filtration Basin
1
35.0970383
-77.0378189
R-4436BB
US 70/US 17 Bus
US
New Bern
US 70 & US 17 Bus in New Bern
1
CMY; The device is a cistern that is located
on the side of the equipment storage shed
Craven County (North) Maintenance Yard, SR
near the back of the yard. This device is also
D02 CO25_0003
IM-2-25-C-2839
Craven
2
Cistern
1
35.1329689
-77.0742722
N/A
SR-1309
SR
New Bern
1309 (S. Glenburnie Rd.) CMY
being monitored by NCSU.
3
Water Quality Volume is 4,410 cu. ft. Water
Quality Volume (account for voids) is 1,300
cu. ft. Q2 and Q10 are Existing (Q-in)
D03 C010 0001
IM-3-10-FB-2605
Brunswick
3
Filtration Basin
1
34.0048457
-78.260921
R-4436CD
NC 211
NC
Supply, NC
on North/East side NC211
Conditions
3
Biofiltration
D03 CO10 0002
IM-3-10-BFC-2606
Brunswick
3
Conveyance
1
34.0227814
-78.2631226
R-4436CE
US 17
US
Supply, NC
3
Bio-
D03_CO10_0003
IM-3-10-BE-2607
Brunswick
3
Embankment
1
34.0234184
-78.2631226
R-4436CE
US 17
US
Supply, NC
3
D03 CO10 0004
IM-3-10-SF-2872
Brunswick
3
Sand Filter
1
33.877438
-78.509938
B-0682 / R-4436CF
179
NC
Sunset Beach
On island side at base of bridge.
4
Infiltration
North end of bridge over the ICWW, west
D03_CO10_0005
IM-3-10-IS-3422
Brunswick
3
Swale
1
33.930064
-78.15888
R-4436CH
NC 906
NC
Oak Island
side of road at end of guardrail
4
Bioretention
At intersection of 1-40 and NC-24 (Right side
D03 CO31 0001
IM-3-31-BB-1790
Duplin
3
Basin
1
34.9891281
-78.1332474
R-4436CB
40
1
Warsaw
of rest area)
REST AREA
1
Infiltration
NC-41/50 SBL; west of Chinquapin; NE side
D03 CO31 0002
IM-3-31-IB-2145
Duplin
3
Basin
1
34.8308792
-77.8313904
M-0418CA
41
NC
Chinquapin
of Bridge #65 over the Cape Fear River
3
Dry Detention
1-40 Off of Exit Ramp SE of interchange 1-40 &
D03 CO65 0001
IM-3-65-DDB-1793
New Hanover
3
Basin
1
34.3526497
-77.8836975
R-4436CA
40
1
Castle Hayne
Holly Shelter Rd. (SR 1002)
1
Wet Detention
Wrightsville Ave. (US-76); at intersection
D03_CO65_0002
IM-3-65-WDB-1801
New Hanover
3
Basin
1
34.2205811
-77.8174667
R-4436CC
US 76
US
Wilmington
with Eastwood Rd.(US-74)
2
This is a research project investigating the
application of a new type of infiltration
Infiltration
basin. Maintenance agreement with Kure
D03 CO65 0003
IM-3-65-IC-2386
New Hanover
3
Chamber
1
34.0001106
-77.9050217
N/A
421
US
Kure Beach
Adjacent to L Ave on beach front
Beach attached under Documents.
2
Page 2of18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
Research project to investigation the
Infiltration
application of a new infiltration device.
D03 CO65 0004
IM-3-65-IC-2387
New Hanover
3
Chamber
1
34.0016212
-77.9056396
421
US
Kure Beach
Adjacent to M Ave on beach front
Maintenance agreement with Kure Beach
2
Research project to investigate the
application of a new infiltration basin.
Maintenance agreement with Kure Beach
attached under Documents. 3 pre-existing
ocean outfalls were diverted into this
system, therefore this system accounts for 3
Infiltration
Adjacent to K Ave and pier on beach front.
retrofit credits. (2 credits are accounted for
D03 CO65 0005
IM-3-65-IC-2388
New Hanover
3
Chamber
3
33.998291
-77.9045334
421
US
Kure Beach
This is the closest section to the pier
under Manual Credits 'Kure Beach K Ave. DIS)
2
Island on South side of Causeway Dr. just NW
Infiltration
of Seacrest Dr. in front of hotel or condo
D03 CO65 0006
IM-3-65-I13-3198
New Hanover
3
Basin
1
34.215485
-77.808282
N/A
US 76 Causeway Dr
US
Wrightsville Beach
complex
Site #1 Town maintained
3
Infiltration
median between Old Causeway Dr and
D03 CO65 0007
IM-3-65-I13-3199
New Hanover
3
Basin
1
34.215534
-77.808072
N/A
US 76 Causeway Dr
US
Wrightsville Beach
Seacrest Dr
Site #2 Town Maintained
3
Infiltration
NE side of Causeway Dr. across from
D03_CO65_0008
IM-3-65-I13-3200
New Hanover
3
Basin
1
34.215473
-77.807515
N/A
US 76 Causeway Dr
US
Wrightsville Beach
Seacrest Dr.
Site 3 Town Maintained
3
SW corner of intersectin with US 74/W.
D03 CO65 0009
IM-3-65-FB-3201
New Hanover
3
Filtration Basin
1
34.216442
-77.805905
N/A
US 74 W. Salisbury St.
US
Wrightsville Beach
Salisbury St. & Municipal/Seawater Ln.
Site 5 Town Maintained
3
Along south side of US 74 just east of
Site 6 Series of check dams installed in swale
D03 CO65 0011
IM-3-65-CD-3203
New Hanover
3
Check Dam
1
34.216564
-77.805327
N/A
US 74 W. Salisbury St
US
Wrightsville Beach
Municipal/Seawater Ln
to promote infiltration Town maintained
3
Partnership with NCCF and Wrightsville
Infiltration
Town Easement on sound side of Waynick
Beach MAINTAINED BY THE TOWN OF
D03 CO65 0012
IM-3-65-IC-3253
New Hanover
3
Chamber
1
34.195853
-77.805962
N/A
Waynick Blvd
SR
Wrightsville Beach
Blvd. at Tula St.
WRIGHTSVILLE BEACH
3
Infiltration
West side of College Road, north of Hewlett's
D03 CO65 0013
IM-3-65-IS-3405
New Hanover
3
Swale
1
34.193124
-77.889851
R-4436CG
132 (College Rd)
NC
Wilmington
Creek
NCDOT to do maintenance.
4
Infiltration
West side of College Road, south of Hewletts
D03 CO65 0014
IM-3-65-IS-3406
New Hanover
3
Swale
1
34.192957
-77.889868
R-4436CG
132 (College Rd)
NC
Wilmington
Creek
NCDOT to do maintenance.
4
Infiltration
This device is an infiltration basin. Do not
D03_CO65_0015
IM-3-65-IB-3423
New Hanover
3
Basin
1
34.254984
-77.938697
R-4436CI
US 74
US
Wilmington
US 74 EB off ramp to McRae St. right of ramp
reclassify.
4
Median of US 117 (Shipyard Blvd.) at
D03_CO65_0016
IM-3-65-BS-3508
New Hanover
3
Bio-Swale
1
34.196867
-77.901873
N/A
US 117
US
Wilmington
intersection with Stonewall Jackson Dr.
4
Median of US 117 (Shipyard Blvd) at the
D03 CO65_0017
IM-3-65-BS-3435
New Hanover
3
Bio-Swale
1
34.19665
-77.902993
N/A
US 117 (Shipyard Blvd)
US
Wilmington
intersection of Pickard Rd.
4
Bioretention
City Administered Project. To be maintained
D03 CO65 0018
IM-3-65-BB-3513
New Hanover
3
Basin
1
34.236292
-77.927627
N/A
17th St
SR
Wilmington
NW corner of 17th Street and Dock St.
by City of Wilmington
4
Bioretention
D03_CO65_0020
IM-3-65-BB-3515
New Hanover
3
Basin
1
34.236796
-77.927507
N/A
17
US
Wilmington
SE corner of 17th St. & US 17 (Market St.)
City Administered Project City Maintained
4
Bioretention
NW corner of 17th Street and US 17 (Market
D03 CO65 0021
IM-3-65-BB-3516
New Hanover
3
Basin
1
34.23753
-77.927775
N/A
17
US
Wilmington
St.)
City Administered Project City Maintained
4
Bioretention
D03_CO65_0022
IM-3-65-BB-3517
New Hanover
3
Basin
1
34.237541
-77.92769
N/A
17
US
Wilmington
NE corner of 17th St. and US 17 (Market St.)
City Administered City Maintained
4
Page 3 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
bridge 24 over New River on US 17 City of
Jacksonville will maintain Project accepted
9/3/13. There is some concern with the
plantings. DOT will monitor the plants and
the Division Roadside will be available if
Bioretention
needed. per David Candela email to BSL-
D03_CO67_0001
IM-3-67-BB-2518
Onslow
3
Basin
1
34.7532196
-77.4327164
B-4214
17
US
Jacksonville
SE side of Bridge Crossing.
9/13/13
3
Scheduled completion 7/22/13, not
Dry Detention
complete as of 8/19/13 project accepted
D03_CO67_0002
IM-3-67-DDB-2819
Onslow
3
Basin
1
34.7520294
-77.4356232
B-4214
17
US
Jacksonville
US 17 SW of Bridge
9/3/13
3
Infiltration
Corner of NC 24 and Front Street in
Maintained by the Town. Only for DOT
D03_CO67_0003
IM-3-67-I13-2838
Onslow
3
Basin
1
34.6876106
-77.1175766
N/A
NC 24
NC
Swansboro
Swansboro
retrofit credit.
3
Division 3 Maintenance has decided to
Topsail Rd.; located between 3rd and 4th
maintain all the IBs in North Topsail
Streets; across Topsail Road from beach
Beach,Topsail Beach, and four on mainland.
Infiltration
dune and next to resident driveway; Device
All devices were cleaned out the week of
D03 CO71 0001
IM-3-67-IC-1959
Pender
3
Chamber
1
34.470507
-77.46765
1583
SR
North Topsail Beach
located in Onslow Co. not Fender Co.
June 25, 2012. RH
2
Maintenance agreement has NCDOT
providing maintenance to this device Refer
Infiltration
Topsail Road between 8th and 9th Ave.;
to IM-3-67-IC-1959 for complete
D03 C071 0001
IM-3-67-IC-1960
Pender
3
Chamber
1
34.468178
-77.470664
1583
SR
N. Topsail Beach
Device located in Onslow Co. not Fender Co.
information.
2
Maintenance agreement with North Topsail
Beach has NCDOT providing maintenance for
Infiltration
Island Dr.; Located just north of 18th Ave.;
this device Agreement attached under
D03 CO71 0001
IM-3-67-IC-1961
Pender
3
Chamber
1
34.4658207
-77.4771212
1583
SR
North Topsail Beach
Device located in Onslow Co. not Pender Co.
documents.
2
Maintenance agreement has NCDOT
Infiltration
Island Drive (NC-210); Between Green & Gray
providing maintenance for this device
D03 CO71 0001
IM-3-71-IC-1962
Pender
3
Chamber
1
34.4566994
-77.4936066
INC 210
INC
N. Topsail Beach
Streets; front of House #2720
Agreement attached under documents.
2
Between Wicker St. & Bird Ln. Near Christian
Maintenance agreement has NCDOT
Infiltration
Family Living Center; Device located in
providing maintenance for this device
D03 CO71 0001
IM-3-67-IC-1963
Pender
3
Chamber
1
34.4498901
-77.5056381
INC 210
INC
N. Topsail Beach
Onslow Co. not Pender Co.
Agreement attached under documents.
2
The Town of Surf City and NCDOT maintains
South Shore Drive (NC-50); just south of
these (15) IBs and they were last cleaned out
Infiltration
Shaes Landing Dr.; on ocean side of road in
the week of June 11, 2012. RH Agreement
D03 CO71 0001
IM-3-71-IC-1964
Pender
3
Chamber
1
34.4109993
-77.5686111
INC 50
INC
Surf City
front of 1516 S Shore Dr.
attached under documents.
2
Maintenance agreement with Surf City First
South Shore Drive (NC-50); In between 1524
chamber S of Surf City on NC 50 Agreement
Infiltration
and 1526 S Shore Drive.; on ocean side of
attached under documents. NCDOT and
D03 CO71 0001
IM-3-71-IC-1965
Pender
3
Chamber
1
34.4105797
-77.5690002
NC 50
NC
Surf City
road
Town alternate vacuuming once per quarter.
2
Maintenance agreement with Surf City
Second chamber S of Surf City on NC 50
Agreement attached under documents.
Infiltration
South Shore Drive (NC-50); In between 1528
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1966
Fender
3
Chamber
1
34.4103317
-77.5696869
NC 50
NC
Surf City
and 1530 S Shore Dr.; on ocean side of road
per quarter.
2
Page 4 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
Maintenance agreement with Surf City Third
chamber S of Surf City on NC 50 Agreement
Infiltration
South Shore Drive (NC-50); At beach access
attached under documents. NCDOT and
D03 CO71 0001
IM-3-71-IC-1967
Pender
3
Chamber
1
34.4099388
-77.5701981
NC 50
NC
Surf City
next to House # 1602 S Shore Dr.
Town alternate vacuuming once per quarter.
2
Maintenance agreement with Surf City
Agreement attached under documents.
Infiltration
South Shore Drive (NC-50); Between Island
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1968
Pender
3
Chamber
1
34.4089203
-77.5716934
NC 50
NC
Surf City
Oaks & Sandy Ln.; on ocean side of road
per quarter.
2
Maintenance agreement with Surf City
In front of 2318 South Shore Drive (NC-50);
Agreement attached under documents.
Infiltration
Located just north of Cutlass Drive; on ocean
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1969
Pender
3
Chamber
1
34.4016685
1 -77.581749
NC 50
NC
Surf City
side of road
per quarter.
2
Maintenance agreement with Surf City
Agreement attached under documents.
Infiltration
South Shore Drive (NC-50); north of Cutless
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1970
Pender
3
Chamber
1
34.4018097
-77.5818329
NC 50
NC
Surf City
Dr.; House #2317; on sound side of road
per quarter.
2
Maintenance agreement with Surf City
South Shore Drive (NC-50); Located near
Agreement attached under documents.
Infiltration
House #2410; between Maitime Dr. &
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1971
Pender
3
Chamber
1
34.4008598
1 -77.5832214
NC 50
NC
Surf City
Cutlass Dr.; ocean side of road
per quarter.
2
Maintenance agreement with Surf City
South Shore Drive (NC-50); located between
Agreement attached under documents.
Infiltration
Katelyn Dr. and Maritime Dr.; on sound side
NCDOT and Town alternate vacuuming once
D03_CO71_0001
IM-3-71-IC-1972
Pender
3
Chamber
1
34.3995514
-77.5852814
NC 50
NC
Surf City
of road
per quarter.
2
Maintenance agreement with Surf City
South Shore Drive (NC-50); at Katelyn Dr.;
Agreement attached under documents.
Infiltration
adjacent to house on corner; on sound side
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1973
Pender
3
Chamber
1
34.399559
1 -77.5854721
NC 50
NC
Surf City
of road
per quarter.
2
Maintenance agreement with Surf City
South Shore Drive (NC-50); Located between
Agreement attached under documents.
Infiltration
Katelyn Dr. and Channel Bend Rd.; near
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1974
Pender
3
Chamber
1
34.3994217
-77.5856934
NC 50
NC
Surf City
House #2622; on sound side of road
per quarter.
2
Maintenance agreement with Surf City
Agreement attached under documents.
Infiltration
South Shore Dr. (NC-50); Between Katelyn
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1975
Pender
3
Chamber
1
34.3993187
1 -77.5852509
NC 50
NC
Surf City
Dr. & Maritime Dr.; on ocean side of road
per quarter.
2
Maintenance agreement with Surf City
South Shore Dr. (NC-50); Located across road
Agreement attached under documents.
Infiltration
on ocean side from House #2715 on sound
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1976
Pender
3
Chamber
1
34.3967209
-77.5886917
NC 50
NC
Surf City
side; just south of Sunward Place
per quarter; last cleaned out —May 15, 2012
2
Maintenance agreement with Surf City
Agreement attached under documents.
Infiltration
South Shore Dr. (NC-50); Located next to
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1977
Pender
3
Chamber
1
34.396801
-77.5887985
NC 50
NC
Surf City
House #2715;
per quarter.
2
Page 5 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
Maintenance agreement with Surf City
North Anderson Blvd. (NC-50); Between
Agreement attached under documents.
Infiltration
Crutchfield Ave. & Oleander Court; near
NCDOT and Town alternate vacuuming once
D03 CO71 0001
IM-3-71-IC-1978
Pender
3
Chamber
1
34.3944397
-77.5915298
NC 50
NC
Surf City
House #2819 on sound side.
per quarter.
2
Division 3 Maintenance has decided to
North Anderson Blvd. (NC-50); Between
maintain all of the ICs in North Topsail and
Infiltration
Blades Landing & Humphrey Ave.; Near
Topsail Beach. They were last cleaned out
D03 CO71 0001
IM-3-71-IC-1979
Pender
3
Chamber
1
34.3920708
-77.5947723
NC 50
NC
Topsail Beach
House #1256 (ocean side)
the week of June 25, 2012. RH
2
North Anderson Blvd. (NC-50); Located in
front of the round house (ocean side);
Maintenance agreement with Topsail Beach
Infiltration
between Blades Landing Rd. and Strawberry
Division 3 Maintenance now cleaning out
D03 CO71 0001
IM-3-71-IC-1980
Pender
3
Chamber
1
34.3917198
-77.5952835
NC 50
NC
Topsail Beach
Ln.
device. Last cleaned out — 5/25/2012.
2
Maintenance agreement with Topsail Beach
South Anderson Blvd. (NC-50); Located in
Device now cleaned out by Division 3
Infiltration
driveway #403; Just south of Empie AVE
Maintenance. Last cleaned out — May 25,
D03 CO71 0001
IM-3-71-IC-1981
Pender
3
Chamber
1
34.3707484
-77.6233274
NC 50
NC
Topsail Beach
(ocean side)
2012.
2
North Anderson Blvd. (NC-50); Located near
Maintenance agreement with Topsail Beach
Infiltration
House #433; across road from Fisherman's
Division 3 Maintenance now cleaning out
D03 CO71 0001
IM-3-71-IC-1982
Pender
3
Chamber
1
34.3890114
-77.5990906
NC 50
NC
Topsail Beach
Lane (ocean side)
device. Last cleaned out — May 25, 2012.
2
Maintenance agreement with Topsail Beach
Infiltration
North Anderson Blvd. (NC-50); House #470;
Division 3 Maintenance now cleaning out
D03_CO71_0001
IM-3-71-IC-1983
Pender
3
Chamber
1
34.3877182
-77.6009064
NC 50
NC
Topsail Beach
across road from Edgewater Dr. (ocean side)
device. Last cleaned out — May 25, 2012.
2
North Anderson Blvd. (NC-50); Across road
from Edgewater Dr. (ocean side) and next to
Maintenance agreement with Topsail Beach
Infiltration
#1983; Near House #471 and north of
Division 3 Maintenance now cleans out this
D03 CO71 0001
IM-3-71-IC-1984
Fender
3
Chamber
1
34.3876991
-77.6009293
NC 50
NC
Topsail Beach
Sidbury Ave.
device. Last clean out was — May 25, 2012.
2
Maintenance agreement with Topsail Beach
North Anderson Blvd. (NC-50); Between
Division 3 Maintenance now is cleaning out
Infiltration
Sidbury Ave & Captain Bob's Ln.; Near House
these devices. Last cleaned out — May 25,
D03 CO71 0001
IM-3-71-IC-1985
Pender
3
Chamber
1
34.3867798
1 -77.6021118
NC 50
NC
Topsail Beach
#509 (ocean side)
2012.
2
Maintenance agreement with Topsail Beach
North Anderson Blvd. (NC-50); Between
Division 3 Maintenance is now cleaning out
Infiltration
Sunset & Nixon Aves. (closer to Sunset Ave;
this device. Last clean out was — May 25,
D03 CO71 0001
IM-3-71-IC-1986
Pender
3
Chamber
1
34.3842201
-77.6057129
NC 50
NC
Topsail Beach
Near House #721 (ocean side)
2012.
2
North Anderson Drive (NC-50); Between
Maintenance agreement with Topsail Beach
Pearson & Empire Aves. closest to Empire
Division 3 Maintenance is now cleaning out
Infiltration
Ave; Near House #409 (on ocean side of
this device. Last clean out was — May 25,
D03_CO71_0001
IM-3-71-IC-1987
Pender
3
Chamber
1
34.3701096
1 -77.6240768
NC 50
NC
Topsail Beach
road)
2012.
2
Maintenance agreement with Topsail Beach
South Anderson Blvd. (NC-50); Located in
Division 3 Maintenance is now cleaning out
Infiltration
front of House #505; between Pearson and
this device. Last clean out was — May 25,
D03_CO71_0001
IM-3-71-IC-1988
Pender
3
Chamber
1
34.3696594
-77.6248932
NC 50
NC
Topsail Beach
Haywood Aves (sound side)
2012.
2
Maintenance agreement with Topsail Beach
South Anderson Dr. (NC-50); Located on right
Division 3 Maintenance is now cleaning out
Infiltration
side of House #603; adjacent to Haywood
this device. Last clean out was — May 25,
D03C071_0001
IM-3-71-IC-1989
Pender
3
Chamber
1 1
134.36911011
-77.6254425
1
1NC 50
NC
Topsail Beach
IAve.
2012.
12
Page 6of18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
Maintenance agreement with Topsail Beach
Division 3 Maintenance now is cleaning out
Infiltration
South Anderson Blvd. (NC-50); Adjacent to
this device. Last clean out was — May 25,
D03 CO71 0001
IM-3-71-IC-1990
Pender
3
Chamber
1
34.3684692
-77.6264801
NC 50
NC
Topsail Beach
Maritime Way (sound side)
2012.
2
Maintenance agreement with Topsail Beach
South Anderson Blvd.(NC-50); adjacent to
Division 3 Maintenance is now cleaning out
Infiltration
Maritime Ave; across road from #1990
this device. Last clean out was —May 25,
D03 CO71 0001
IM-3-71-IC-1991
Pender
3
Chamber
1
34.3684196
-77.6263199
NC 50
NC
Topsail Beach
(ocean side)
2012.
2
Maintenance agreement with Topsail Beach
Division 3 Maintenance is now cleaning out
this device. Last clean out was — May 25,
Infiltration
Ocean Blvd.; Between Hines Ave. & Crews
2012. 7 chambers = 321.3 cu.ft. Box = 15
D03 CO71 0001
IM-3-71-IC-1992
Pender
3
Chamber
1
34.3641396
-77.6308136
Ocean Blvd.
SR
Topsail Beach
Ave.; Near House #919 (ocean side)
cu.ft.
2
Maintenance agreement with Topsail Beach
Division 3 Maintenance is now cleaning out
Infiltration
Carolina Blvd.; across from Clark Ave. (sound
this device. Last clean out was — May 25,
D03_CO71_0001
IM-3-71-IC-1993
Pender
3
Chamber
1
34.3555717
-77.6437378
Carolina Blvd.
SR
Topsail Beach
side); House #1422
2012.
2
Maintenance Agreement with Topsail Beach
Carolina Blvd.; adjacent to Clark Ave.; House
Division 3 Maintenance is now cleaning out
Infiltration
#1501 and across street from House #1422
this device. Last clean out was — May 25,
D03 CO71 0001
IM-3-71-IC-1994
Pender
3
Chamber
1
34.3554688
-77.6437531
Carolina Blvd.
SR
Topsail Beach
that is on the sound
2012.
2
Maintenance agreement with Topsail Beach
South Anderson Blvd. (NC-50); Located near
Division 3 Maintenance is now cleaning out
House #1507; between Clark and Florida
this device. Last clean out was — May 25,
Infiltration
Aves but closer to Clark Ave. and south side
2012. 7 chambers = 321.3 cu.ft. Box = 15
D03 CO71 0001
IM-3-71-IC-1995
Pender
3
Chamber
1
34.3546104
-77.6434708
NC 50
NC
Topsail Beach
of road
cu.ft.
2
Maintenance agreement with Topsail Beach.
Carolina Blvd. (SR-1555); House #1512;
Division 3 Maintenance is now cleaning out
Infiltration
halfway between Florida & Clark Ave.(sound
this device. Last clean out was May 25,
D03_CO71_0001
IM-3-71-IC-2176
Pender
3
Chamber
1
34.3549995
-77.6447601
SR-1555
SR
Top Sail Beach
side)
2012.
2
Infiltration
Just off NC 50 on SR 1558(Crocker Ave) at
D03 CO71 0001
IM-3-71-IC-3212
Pender
3
Chamber
1
34.35981
1 -77.63664
50
NC
Topsail Beach
house number 1201.
7 chambers = 321.3 cu.ft. Box = 15 cu.ft."
2
Infiltration
ON NC 50 between Empie and Pearson St at
D03 CO71 0001
IM-3-71-IC-3213
Fender
3
Chamber
1
34.37075
-77.62335
50
NC
Topsail Beach
house number 403 on ocean side.
2
Infiltration
On NC 50 at house number 205D on ocean
D03 CO71 0001
IM-3-71-IC-3214
Pender
3
Chamber
1
34.37291
-77.62056
50
NC
Topsail Beach
side.
2
1706 Kings Landing Road; Blue house on left
Infiltration
side of road; This device is similar to the ICs
D03 CO71 0002
IM-3-71-IC-3034
Pender
3
Chamber
1
34.3694916
-77.6604309
1567
SR
Topsail
found in Topsail and Surf City area.
Device was cleaned out on May 24, 2012.
2
Infiltration
Yellow house behind trees on left side of
D03 CO71 0002
IM-3-71-IC-3035
Pender
3
Chamber
1
34.3693619
-77.6607056
1567
SR
Topsail
road
2
1718 Kings Landing Rd.; Off of US-17 North;
Infiltration
small white house; device located in middle
D03_CO71_0002
IM-3-71-IC-3036
Pender
3
Chamber
1
34.3692513
-77.6609344
1567
SR
Topsail
of road frontage
2
Off second entrance to Scotts Hill Loop Rd.;
Infiltration
115 Ebb Dr. on left side of road and 5th
Similar device to the ones located on Topsail
D03 C071 0003
IM-3-71-IC-3033
Pender
3
Chamber
1 1
34.3179665
-77.7404938
11659
1 SR
I Scotts Hill
Ihouse on left
IBeach area
12
Page 7of18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
D04 CO51 0001
IM-4-51-LS-1564
Johnston
4
Level Spreader
1
35.6061401
-78.5646973
R-4436DA
40
1
Clayton
Burger King
1
D04_CO51_0002
IM-4-51-S-3408
Johnston
4
Swale
1
35.390145
-78.521259
R-4436DD
1-40 & 1-95
1
Benson
Western part of west loop
Final Walk-thru 9/28/17
4
Final Walk-thru 9/28/17. Watering to
continue for a few weeks until sod is
D04_C051_0003
IM-4-51-S-3409
Johnston
4
Swale
1
35.391352
-78.519741
R-4436DD
1-40 & 1-95
1
Benson
Northern part of West Loop
established.
4
Final Walk-thru 9/28/17. Watering to
continue for a few weeks until sod is
D04_CO51_0004
IM-4-51-BS-3410
Johnston
4
Bio-Swale
1
35.391278
-78.518416
R-4436DD
1-40 & 1-95
1
Benson
North Loop
established.
4
Final Walk-thru 9/28/17. Watering to
continue for a few weeks until sod is
D04 CO51 0005
IM-4-51-BS-3411
Johnston
4
Bio-Swale
1
35.388164
-78.518534
R-4436DD
1-40 & 1-95
1
Benson
South Loop
established.
4
Device is a combination of a hazardous spill
basin and infiltration basin. There are two
sluice gates. One sluice gate being on the
inside the outlet control structure and the
other sluice gate being on the inside of the
outlet control structure. Device installed in
2008 as a retrofit to contain spills that occur
on this ramp from overturned fuel tankers
Hazardous Spill
3/4 way around ramp on right at interchange
based on Wayne County Emergency
D04 CO96 0001
IM-4-96-HSB-2169
Wayne
4
Basin
1
35.3955307
-78.002388
R-4436DC
70
US
Goldsboro
of US 70 E and US 117 /13
Management personnel.
2
Stormwater
US 13/117 Bypass & Ashe St; NE Quad. of
D04 CO96 0002
IM-4-96-SW-2520
Wayne
4
Wetland
1
35.3901901
-78.0075226
117
US
Goldsboro
interchange; adjacent to West Haven Apt.
2
This device is located downstream of
Hazardous Spill Basin #2181 to correct a
flooding problem that was occurring across
US 117 from S of NC 581 at Goldsboro to S of
US-70 at an expanding church; REH
D04 CO96 0003
IM-4-96-S-2521
Wayne
4
Swale
1
35.4005585
-78.0108871
R-1030AA
70
US
Goldsboro
SR 1300
11/15/2011
2
R-Tank installation next to driveway to Police
station. Upon completion of the Project, the
Municipality, at no expense to the
Department, shall assume all maintenance
and liability responsibilities for the
stormwater BMP retrofit and release the
West side of S. John St. just north of E.
Department from all liability relating to such
D04 CO96 0005
IM-4-96-WV-3510
Wayne
4
Wet Vault
1
35.380511
-77.996446
1925
SR
Goldsboro
Spruce Street
maintenance.
4
Stormwater
Wilson County Maintenance Yard; located
CMY; No LOS for this device; maintain in
D04_CO98_0001
IM-4-98-SW-1611
Wilson
4
Wetland
1
35.7084198
-77.9284668
N/A
US-264
US
Wilson
behind welding shop against property fence
present state Matt Lauffer
1
11-Floating Islands. Research Conducted: pre
Floating
SE of 1-85NB & US15/501 interchange
installation 12/2008-late 2/2010 Post
D05 032 0001
IM-5-32-FWI-3072
Duplin
5
Wetland Island
1 1
1 36.02464
-78.94425
1 NCSU research
1 1-85
1 I
1Durham
lbordering Hillandale Golf Course
linstallation 7/2010-9/2011
3
Page 8of18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
South Saunders St. (SR-1428); On -ramp from
Dry Detention
R-4436EA
South Saunders St. to 1-440 WBL on left side
D05_CO92_0001
IM-5-92-DDB-1674
Wake
5
Basin
1
35.7537689
-78.6507568
Wake2(DDB1)
1428
SR
Raleigh
of ramp
1
Old sediment basin. Dam was breached and
outlet channel lined with fabric and rip rap to
Stormwater
hold an elevation to establish a wetland on
D05 CO92 0004
IM-5-92-SW-2531
Wake
5
Wetland
1
35.9102707
-78.6474762
R-4436EC
540
1
Raleigh
1-540 & Six Forks Rd SE quad
live stream.
2
I-
4744(FiltrationBasin
gore area between US-1SB and On -ramp to I-
D05 CO92 0005
IM-5-92-FB-2530
Wake
5
Filtration Basin
1
35.7678185
1 -78.7336502
1)
1
US
Raleigh
40W
3
I-
4744(FiltrationBasin
In gore area between 1-40 WB and US-1SB
D05 CO92 0005
IM-5-92-FB-2548
Wake
5
Filtration Basin
1
35.7684517
-78.735939
2)
40
1
Cary
ramp to 1-40W
3
Jordan's Gorge -Project includes 5 additional
retrofit credits for 2 stream bank
stabilizations on the south side of Wade and
1 slope repair and 2 outfall stream bank
Dry Detention
stabilizations on the North. Credits are
D05 CO92 0006
IM-5-92-DDB-2549
Wake
5
Basin
6
35.8033981
-78.7007065
RSP-1
Wade Avenue
NC
Raleigh
SW of Wade Ave & 1-440 interchange
accounted for under manual credits
3
1-540 NBL Bridge over Mango Creek NE side;
Take US 64 Business exit off 1-540 NBL to
right and first right onto Lynnwood Drive;
follow Lynnwood Drive south for
D05 CO92 0008
IM-5-92-S-2437
Wake
5
Swale
1
35.7839394
-78.5137634
M-0418EA(CS2)
540
1
Knigthdale
approximately 1 mile to bridge
2
1-540 NBL Bridge Over Mango Creek NE side;
Cost data is for all 4 devices constructed on
take 1-540 NBL to US-64 Business and first
M-0418EA. There are 4 former research
right onto Lynnwood Drive. Continue on
devices. Filtration Basin furthest from the
Lynnwood Drive south for approximately 1
bridge. This devices has been used for
D05 CO92 0009
IM-5-92-FB-2438
Wake
5
Filtration Basin
1
35.7842293
-78.5133286
M-0418EA(B2)
540
1
Knigthdale
mile to bridge
research with Dr. Hunt NCSU.
2
1-540 NBL Bridge over Mango Creek NE side;
This was a research site with (3) devices
Take US 64 Business exit off 1-540 NBL to
including two filtration basins and a swale;
right and first right onto Lynnwood Drive;
Filtration Basin closest to bridge. The second
follow Lynnwood Drive south for
filtration basin next to this device is SCMS
D05 CO92 0010
IM-5-92-FB-2439
Wake
5
Filtration Basin
1
35.784111
-78.5133972
M-0418EA(B1)
540
1
Knigthdale
approximately 1 mile to bridge
#2438.
2
1-540 Bridge over Mango Creek. Device is at
Low Impact Design. Device is a PSH into a
Preformed
end of gravel drive off of Lynnwood Dr.
natural low forested area. Cost data is for all
D05 CO92 0011
IM-5-92-PSH-2510
Wake
5
Scour Hole
1
35.7838898
-78.5129166
M-0418EA(PSH-L-1)
1-540
1
Knightdale
(Planter's Walk subdivision)
4 devices constructed on M-0418EA.
2
Contract extended to water vegetation on
device through November 2011 Note from
Division 5 (July 2012): Depicted as BMP #1
I-440 &Wade Ave; BMP #1 -West Gore
on plan sheet. Erosion control fences have
D05 C092 0012
IM 5 92 FB 2550
Wake
5
Filtration Basin
1
35.8041382
78.6967468
R 4436ED(F61)
440
I
Raleigh
Area, NW Quad.
been removed. REH
3
Page 9of18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
R-4436ED, BMP #2; contract extended to
water vegetation on device until November
Wade Ave. & 1-440 interchange, SW Quad,
2011 Note from Division 5 (July 2012):
D05 CO92 0013
IM-5-92-FB-2705
Wake
5
Filtration Basin
1
35.8034096
-78.6960297
R-4436ED(FB2)
1726
SR
Raleigh
Western gore
Depicted as BMP #2 on Plan Sheet
3
Dry Detention
Inside loop of SW Quad 1-440 & Wade Ave
Note From Division 5: Depicted as BMP #3 on
D05 CO92 0014
IM-5-92-DDB-2706
Wake
5
Basin
1
35.8029594
-78.6945572
R-4436ED(DDB1)
1728
SR
Raleigh
interchange; R-4436ED, BMP #3
plan sheet.
3
Contract extended through November 2011
to water vegetation on device Note From
Dry Detention
1-440 & Wade Ave interchange, SW quad,
Division 5 (July 2012): Depicted as BMP #4
D05 CO92 0015
IM-5-92-DDB-2707
Wake
5
Basin
1
35.802269
1 -78.6941071
R-4436ED(DDB2)
1728
SR
Raleigh
Southern Gore; R-4436ED, BMP #4
on plan sheet.
3
Dry Detention
D05 CO92 0023
IM-5-92-DDB-3237
Wake
5
Basin
1
35.800827
-78.709153
R-4436EF(DDB1)
1664
SR
Raleigh
NW corner of Wake CMY
CMY
3
REST AREA; Device has a permanent grade
Fayetteville Rest Area (NBL); end of exit ramp
control structure at downstream end of
D06 CO26 0001
IM-6-26-S-1324
Cumberland
6
Swale
1
34.9970512
1 -78.8286133
95
1
Fayetteville
on right
device
1
New galvanized sluice gate installed in
December 2014 by Cumberland Co. Bridge
Dry Detention
Off Ramp (SE Quadrant) between loop & NC-
Unit. Old sluice gate badly corroded and
D06 CO26 0002
IM-6-26-DDB-1323
Cumberland
6
Basin
1
34.9745293
-78.8581238
R-4436FB
95
1
Fayetteville
87 on -ramp to 1-95 NBL
needed replacing. REH
1
Research project ended in 2008. CME to
provide annual maintenance/ cleanout
Fayetteville CMY located on Gillespie Street;
records (as needed) to DREE to enter
D06 CO26 0003
IM-6-26-SS-1320
Cumberland
6
Swirl Separator
1
35.0420609
-78.8840714
SR-1242
SR
Fayetteville
Device is a Swirl Separator
inspection/maintenance records into SCMS.
2
Research project ended in 2008. CME to
Fayetteville CMY; located on Gillespie Street;
provide annual maintenance/ cleanout
Device is actually a Swirl Separator; located
records (as needed) to DREE to enter
D06 CO26 0004
IM-6-26-SS-1321
Cumberland
6
Swirl Separator
1
35.041069
-78.884697
SR-1242 (Gillespie St.)
SR
Fayetteville
in parking lot adjacent to Poe Street
inspection/maintenance records into SCMS.
2
Research project ended in 2008. CME to
Fayetteville County Maintenance Yard;
provide annual maintenance/ cleanout
Located on Gillespie Street; Device is actually
records (as needed) to DREE to enter
D06 CO26 0005
IM-6-26-SS-1322
Cumberland
6
Swirl Separator
1
35.0414505
-78.8832169
SR-1242
SR
Fayetteville
Swirl Separator
inspection/maintenance records into SCMS.
2
Infiltration
Gore area between 1-295 and fly over ramps,
D06_CO26_0006
IM-6-26-IB-3424
Cumberland
6
Basin
1
35.116478
-78.94871
R-4436FD
1-295
1
Fayetteville
west of flyover bridge
4
Infiltration
gore area between 1-295 and off ramp to NC
D06_CO26_0007
IM-6-26-IB-3425
Cumberland
6
Basin
1
35.117564
-78.94711
R-4436FD
1-295
1
Fayetteville
210 north of flyover bridge
4
Dry Detention
between 1-295 and flyover ramps just west of
D06 CO26 0008
IM-6-26-DDB-3426
Cumberland
6
Basin
1
35.118228
-78.946091
R-4436FD
1-295
1
Fayetteville
bridges over creek
4
small gore area within ramps south of flyover
D06 CO26 0009
IM-6-26-FB-3427
Cumberland
6
Filtration Basin
1
35.117304
-78.94652
R-4436FD
1-295
1
Fayetteville
bridge
4
Device includes rip rap lined ditch and energy
D06_CO26_0010
IM-6-26-0-3428
Cumberland
6
Other
1
35.115812
-78.948022
R-4436FD
1-295
1
Fayetteville
South of ramps and IB (SCMS 3424)
dissipator before flows leave ROW
4
Page 10 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
Device includes rip rap lined ditch and energy
D06_CO26_0011
IM-6-26-0-3429
Cumberland
6
Other
1
35.116955
-78.946435
R-4436FD
1-295
1
Fayetteville
south of ramps and FB (SCMS 3427)
dissipator before flows leave ROW
4
Device maintained by Facility Manager
located at NC DMV CDL Skills Testing Facility,
US 211 & 5th Ave; DMV CDL Skills Testing
2479 East Fifth Street, Lumberton. HSB-3124
Hazardous Spill
Facility for truck license; another HSB in NE
is the West basin, and HSB-2551 is the East
D06_CO78_0001
IM-6-78-HSB-2551
Robeson
6
Basin
1
34.61049
-78.97351
211
US
Lumberton
corner of site
basin.
2
US 211 & 5th Ave; CDL DMV Skills Testing
Device manage y on -site facility manager.
Hazardous Spill
Facility for truck licenses; A second HSB
There are two HSBs located at this site. HSB-
D06 CO78 0002
IM-6-78-HSB-3124
Robeson
6
Basin
1
34.61014
-78.9729899
N/A
NC 211
NC
Lumberton
located in NW part of site
3124 is the West basin, and HSB-2551 is the
2
NW of the truck parking lot at the 1-85 W
discontinued by the end of 2012 and vault
D07 CO01 0001
IM-7-1-WV-2552
Alamance
7
Wet Vault
1
36.0646019
-79.5369034
R-4436GA
85
1
Graham
Rest Area
will be filled in. RH Device has been
1
All CBI's have been removed. 7 were in place
along 3 systems, therefore 3 retrofit credits
are accounted for. This is the 1st of 3 entries
Catch Basin
into SCMS in order to maintain an accurate
D07 CO01 0002
IM-7-I-CBI-1331
Alamance
7
Insert
1
36.0643616
-79.5367432
R-4436GB
1-85
1
Whitsett
Archive- device taken out (REH 4/3/2009)
retrofit credit count. (Others 1332,1333)
1
All CBI's have been removed. 7 were in place
along 3 systems, therefore 3 retrofit credits
are accounted for. This is the 2nd of 3 entries
Catch Basin
into SCMS in order to maintain an accurate
D07 C001 0002
IM-7-I-CBI-1332
Alamance
7
Insert
1
36.0617599
-79.5352783
R-4436GB
1-85
1
Whitsett
Archive - device taken out (REH - 4/3/2009)
retrofit credit count. (Others 1331,1333)
1
All CBI's have been removed. 7 were in place
along 3 systems, therefore 3 retrofit credits
are accounted for. This is the 3rd of 3 entries
Catch Basin
into SCMS in order to maintain an accurate
D07 CO01 0002
IM-7-I-CBI-1333
Alamance
7
Insert
1
36.0618286
-79.5346298
R-4436GB
1-85
1
Whitsett
Archive - device taken out (REH - 4/3/2009)
retrofit credit count. (Others 1331,1332)
1
Biofiltration
1-40WB/85SB Rest Area, left side of rest area
REST AREA BFC PLANTED WITH
D07_CO01_0003
IM-7-I-BFC-3068
Alamance
7
Conveyance
1
36.063963
-79.536853
R-4436 GF
1-40/85
1
Whitsett
exit/entrance to interstate
WILDFLOWER SEED MIX 03/24/2015 JAW
3
Punchlist was created 8/11/16, once
completed, ICT #1 will be complete. ICT #1
contract completion date is 9/3/16. Overall
D07 CO01 0004
IM-7-1-FB-3397
Alamance
7
Filtration Basin
1
36.06326
-79.431926
R-4436GH
40
1
Burlington
Filtration Basin
contract completion is 3/6/17.
4
D07 CO41 0001
IM-7-41-B-2553
Guilford
7
Buffer
1
36.0198097
-79.8665695
U-2524WM
4246
SR
Deep River
Groometown Road near U-2524
Buffer, No Maintinance
2
D07 CO41 0002
IM-7-41-B-2822
Guilford
7
Buffer
1
36.0480614
-79.9161224
U-2524WM
70
US
Deep River
WendoverAve near U-2524
Buffer, No Maintenance
2
SW/DDB Basin has Hazardous Spill Basin
functionality as well. Valve on 'T'pipe and
large sluice gate should remain open during
US-311 EBL; before Bridge 400764 over Oak
normal operation. Lower Valve should
Hollow Reservoir; there is a HSB downstream
remain closed unless drawdown for
D07 C041 0003
IM 7 41 FB 2154
Guilford
7
Filtration Basin
1
36.0060997
79.9990692
R-4436GC
311
US
Greensboro
of this device
Imaintenance is required.
I3
Dry Detention
Bridge 400764 over Oak Hollow Reservoir SR
functionality as well. Valve on 'T'pipe and
D07 CO41 0004
IM-7-41-DDB-2426
Guilford
7
Basin
1
36.0050011
-79.9970016
R-4436GC
1979
SR
Greensboro
11979/US 311
large sluice gate should remain open during
3
Page 11 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
Detention Basin has hazardous spill basin
Dry Detention
Bridge #763 over Oak Hollow Reservoir; EBL
functionality as well. Device is downstream
D07 CO41 0005
IM-7-41-DDB-2163
Guilford
7
Basin
1
36.0061302
-79.9996338
R-4436GC
311
US
Greensboro
before bridge and downstream of FB on right
of a filtration basin
3
Camp Burton CMY in Greensboro; device
D07 CO41 0006
IM-7-41-FB-2425
Guilford
7
Filtration Basin
1
36.1198082
-79.7017212
R-4436GD
2825
SR
Greensboro
located in the SE corner of yard
CMY
3
SR 1853 (Sandy Camp Rd); Guildford (West)
CMY; device located along the western side
D07_CO41_0007
IM-7-41-FB-2554
Guilford
7
Filtration Basin
1
36.06825
-80.00229
R-4436GE
1853
SR
High Point
of yard
CMY
3
Tom Ball Road (SR-7000) NBL; Bridge No. 33
Delete device #1357 (duplicate of this
over Randleman Lake; found on SE side
device); retrofitted by HSP May 2011 and
D07 CO41 0008
IM-7-41-1-S-2150
Guilford
7
Level Spreader
1
35.9179916
-79.8661194
M-0418GA
7000
SR
before bridge to NC-62
given new number
3
Hazardous spill basin located upstream of
NC-62 (WBL); Bridge No. 24 over Deep River;
this device; Delete device #1361 duplicate of
D07 CO41 0009
IM-7-41-LS-2146
Guilford
7
Level Spreader
1
35.9196205
-79.8647232
M-0418GA
62
NC
Pleasant Garden
found on NW side of bridge
this device
3
Hazardous spill basin located upstream of
NC-62 EBL; Bridge #24 over Deep River;
this device; Delete device #1360 (duplicate of
D07 CO41 0010
IM-7-41-1-S-2440
Guilford
7
Level Spreader
1
35.9189682
-79.8614426
M-0418GA
62
NC
Pleasent Garden
found on SE side of bridge
this device)
3
Hazardous spill basin located upstream of
NC-62 EBL; Bridge No. 49 over Randleman
this device; Delete device #1358 (duplicate of
D07 CO41 0011
IM-7-41-LS-2151
Guilford
7
Level Spreader
1
35.9210815
-79.8562164
M-0418GA
62
NC
Lake; found on SW side of bridge
this device)
3
Piped eroding ditch to a stone level spreader
0.25 miles east of intersection of Hilltop
structure. Final walk-thru 12/16/14 Contract
D07 CO41 0012
IM-7-41-LS-2884
Guilford
7
Level Spreader
1
36.0381012
-79.9155197
R-4436 GG
Shimer Drive
SR
Jamestown
Road and Guilford College Road
through 5/1/15 for vegetation establishment
3
Inside loop from southbound High Point
D07 C041 0013
IM-7-41-FB-3030
Guilford
7
Filtration Basin
1
36.0442009
-79.8415298
R-4436G1
4121
SR
Greensboro
Road to eastbound 1-40
4
D07 CO68 0001
IM-7-68-LS-3207
Orange
7
Level Spreader
1
36.0517502
-79.1008377
N/A
85
1
Hillsborough
Downhill of Salt Bins; located at CMY
CMY
1
Wash pad at Orange CMY - large area of
D07 C068 0002
IM-7-68-0-2823
Orange
7
Other
1
36.0519867
-79.0993652
85
1
Hillsborough
deep ABC stone
CMY
1
Dry Detention
D07_CO79_0001
IM-7-79-DDB-1382
Rockingham
7
Basin
1
36.3887596
-79.7480698
NC-65
NC
Wentworth
SE of Wentworth; County Maintenance Yard
CMY
D08_CO19_0001
IM-8-19-0-3031
Chatham
8
Other
1
35.7300415
-79.4439468
N/A
2103
SR
Siler City
Wash Pad located at the Siler City CMY
Wash Pad
1
Device has earlier named swale and water
Near intersection of NC-24/27 and NC-
control structure but has an under drain
D08 CO62 0001
IM-8-62-FB-1387
Montgomery
8
Filtration Basin
1
35.3204613
1 -79.9462128
NC 24
NC
Roberdo
109;across road from West Middle School
system
1
Dry Detention
At intersection of US 220 and NC 211; NW
D08_CO62_0002
IM-8-62-DDB-1386
Montgomery
8
Basin
1
35.2975616
-79.7299271
R-4436 HB
220
US
Candor
Quad.
1
Maintained by Zoo. 2 retrofit credits total.
Stormwater
Additional credit is accounted for under
D08 C076 0001
IM-8-76-SW-2164
Randolph
8
Wetland
2
35.6278801
-79.7650681
220
US
Asheboro
NC Zoo, North American parking lot
Manual Credits
2
REST AREA; Seagrove Rest Area SBL; this is a
North end of entrance ramp on left where
combined filtration basin and hazardous spill
D08_CO76_0002
IM-8-76-FB-2555
Randolph
8
Filtration Basin
1
35.5156212
-79.7841187
K-3807
220
US
Seagrove
truck and car parking lanes split
basin
2
Page 12 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
Seagrove Rest Area NBL; located to the right
of entrance ramp; this device is a
combination of a filtration basin & hazardous
D08 CO76 0003
IM-8-76-FB-2556
Randolph
8
Filtration Basin
1
35.5154114
-79.7807693
K-3807
220
US
Seagrove
spill basin
REST AREA
2
Need to correct design and construction
dates Should be maintained by DREE and rest
D08_CO76_0004
IM-8-76-GR-2583
Randolph
8
Green Roof
1
35.5140419
-79.7850266
K-3807
US 220
US
Sea Grove
Green roof on top of Rest Area Building
area staff.
2
northeast of Southern Products along US 1
corridor. Located at southwest corner of
Outlet structure 101 in R-2502B construction
D08 CO77 0001
IM-8-77-CD-2604
Richmond
8
Check Dam
1
35.057621
-79.5014572
R-2502B
US 1
US
Hoffman
silica pond #3
plans. Similar to a grade control structure.
3
NE side of bridge over Beaverdam Creek
site destroyed by utility contractor. No repair
D09_CO29_0001
IM-9-29-0-2149
Davidson
9
Other
1
35.5120201
-80.1003494
M-04181A
2550
SR
Enhanced Wetland
or replacement to be completed.
3
Bioretention
1-40 EBL exit ramp to US-311/52 & NC-8 on
D09 CO34 0001
IM-9-34-BB-1441
Forsyth
9
Basin
1
36.0617104
-80.2310028
40
1
Winston-Salem
right (inside loop).
1
Bioretention
NC 62 (Silas Creek Pkwy) at NCDOT Div Office
D09 CO34 0002
IM-9-34-BB-2557
Forsyth
9
Basin
1
36.0668106
-80.2438965
67
NC
Winston-Salem
in Winston-Salem
2
Maintenance Yard for Winston-Salem area
Based on aerial images and discussion with
Dry Detention
located at 300 Craft Drive just off SR 1725 (N
Roadside, this control is not located at this
D09_CO34_0003
IM-9-34-DDB-2558
Forsyth
9
Basin
1
36.1441307
-80.2620316
1725
SR
Winston-Salem
Cherry St)
CMY. 5/2/2019 AKeller
2
Dry Detention
NC-49 WBL across Badin Lake Bridge on right
D09 CO80 0001
IM-9-80-DDB-1448
Rowan
9
Basin
1
35.505249
-80.1855164
49
NC
Stokes Ferry Bridge
adjacent to bridge
Has HSB function as well
1
Monitoring and maintenance of mitigation
D09 CO85 0001
IM-9-85-B-1453
Stokes
9
Buffer
1
36.4246483
-80.2271118
SR 1665 (Gentry Rd)
SR
Danbury
1.6 miles NW of Danbury, NC
buffer handled by PDEA
1
Intersection of Horseshoe Rd. & SR 1465
Monitoring and maintenance of mitigation
D09_CO85_0002
IM-9-85-B-1455
Stokes
9
Buffer
1
36.4892807
-80.3422928
SR 1464 (Horseshoe Rd.)
SR
Francisco
(Palm Rd.)
buffer handled by PDEA
1
Pitzer Road; End of field at intersection of
Monitoring and maintenance of mitigation
D09 CO85 0003
IM-9-85-B-1451
Stokes
9
Buffer
1
36.4027596
-80.1506271
SR 1697
SR
Meadows
Pitzer Rd. & SR 1696 (Duggins Rd.)
buffer handled by PDEA
2
Little Peter's Creek N of NC 704 .5 miles E of
Project is a buffer. nothing to
D09_CO85_0004
D-9-85-B-2825
Stokes
9
Buffer
1
36.52598
-80.27061
70
NC
intersection of SR 1438 & NC 704
inspect/maintain.
2
Venable Site. Located across from the Clark
Site (Paper ID D09_C085_0003). Need to
D09 CO85 0005
IM-9-85-B-2509
Stokes
9
Buffer
1
36.4019012
-80.1501236
1552
SR
change to Buffer Need to change SR No.
2
Dry Detention
Bridge 840060 over Dan RiverJunction of NC-
D09 CO85 0006
IM-9-85-DDB-2162
Stokes
9
Basin
1
36.4333801
-80.2426605
M-0418 IB
Aug-89
NC
Danbury
89 and NC-8; just NW from Danbury
3
Bioretention
Next to 1-85 and on NC-73; under high power
* Due to the widening of 1-85 this device was
D10 CO13 0001
IM-10-13-BB-1459
Cabarrus
10
Basin
1
35.4358406
-80.65979
73
NC
Evans College
lines
removed on or before 7/31/2012. RH
1
REST AREA; K-4906 Rain Garden F; Device
D10 CO13 0002
IM-10-13-RG-3012
Cabarrus
10
Rain Garden
1
35.4512062
-80.5944901
K-4906
1-85
1
Kannapolis
1-85NB rest area, west of buildings
should be maintained by rest area staff RH
2
REST AREA; K-4906 Rain Garden G; Device
D10 C013 0003
I IM-10-13-RG-3013
I Cabarrus
10
1 Rain Garden
1
35.4511108
-80.5938263
K-4906
1-85
I
1 Kannapolis
INB rest area, east of buildings
ishould be maintained by rest area staff RH
2
Page 13 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
REST AREA; K-4906 rain garden A, between
buildings. Has a ditch outlet connection to
Rain garden B. Rain Gardens A,B&E are
combined into 1 retrofit credit for treating
the runoff from the restroom buildings roof;
Device should be maintained by rest area
D10 CO13 0004
IM-10-13-RG-3014
Cabarrus
10
Rain Garden
1
35.4567223
-80.5943298
K-4906
1-85
1
Kannapolis
SB rest area, between buildings
staff RH
2
REST AREA; K-4906 rain garden C, between
buildings. Rain Gardens C&D are combined
into 1 retrofit credit for treating the runoff
SB rest area, south of vending bldg, east of
from the vending building roof; Device
D10 CO13 0006
IM-10-13-RG-3016
Cabarrus
10
Rain Garden
1
35.4565315
-80.5943298
K-4906
1-85
1
Kannapolis
sidewalk
should be maintained by rest area staff RH
2
Dry Detention
1-77 NC 73 Interchange, North of Northwest
D10 C060 0001
IM-10-60-DDB-2563
Mecklenburg
10
Basin
1
35.4450111
-80.8697662
R-44361B
73
NC
Huntersville
Loop
1
Dry Detention
Woods Lane in a subdivision behind
to Goose Creek. These devices are next to an
D10 CO60 0002
IM-10-60-DDB-2564
Mecklenburg
10
Basin
1
35.1451302
-80.6352921
485
1
Mint Hill
guardrail; Adjacent to 1-485 interchange; First
EEP Conservation Area Protected Creek and
1
Dry Detention
NC-218 D ramp to 1-485 (NBL); left side of
D10 C060 0003
IM-10-60-DDB-2565
Mecklenburg
10
Basin
1
35.1799889
-80.6286163
485
1
Mint Hill
ramp
1
Spillway appears to have stabilized itself
from a previous head cut. Continue to
conduct inspections of device but if situation
deteriorates please get in touch with REU
and Hydraulics Units in Raleigh. RH
1-485 (NBL) just before Moore Chapel Road
8/21/2014 REU will pay to have a gate
Stormwater
Exit #12 on right. Follow power line cut down
installed at the fence line to gain better
D10_C060_0004
IM-10-60-SW-2566
Mecklenburg
10
Wetland
1
35.2686195
-80.9653473
R-2248 BB
485
1
the hill to spillway.
access to the device. RH 8/27/2014
2
177 NBL just before the exit to US-73/SR-
Infiltration
2145 (Sam Furr Rd.); this is the first IB in
D10 C060 0005
IM-10-60-I8-2141
Mecklenburg
10
Basin
1
35.4382515
-80.8681107
R-4436JC
77
1
Huntersville
series of two devices
Two infiltration basins in series
2
Stormwater
West side of NC 51 just north of 1-485
D10 C060 0007
IM-10-60-SW-2300
Mecklenburg
10
Wetland
1
35.20425
-80.63335
R-44361E
51
NC
Mint Hill
interchange; across road from Connell Road
3
Preformed
North side of 1-485 Outer ramp from NC 51;
D10 C060 0008
IM-10-60-PSH-2301
Mecklenburg
10
Scour Hole
1
35.203949
-80.6340485
R-44361E
485
1
Mint Hill
on right side down steep fill slope
3
located near the southeast side of 1-85 bridge
Stormwater
(NBL) crossing Mallard Creek; greenway
D10 C060 0009
IM-10-60-SW-2429
Mecklenburg
10
Wetland
1
35.31953
-80.75187
R-4436JF
85
1
Charlotte
walking on opposite side of creek
3
Dry Detention
NW corner of 1-77 Welcome Center, behind
D10 C060 0010
IM-10-60-DDB-2303
Mecklenburg
10
Basin
1
35.1230507
-80.9168701
R-4436JG
77
1
Pineville
building and below picnic shelter
REST AREA
3
Infiltration
Paw Creek Maintenance Yard 6820 Rozzelles
Located in SW portion of yard behind bulk
D10 C060 0011
IM-10-60-I8-2569
Mecklenburg
10
Basin
1
35.28319
-80.92137
SC-2569
1784 (Rozzelles Ferry Rd)
SR
Charlotte
Ferry Rd Charlotte, NC 28214
storage bins
3
Page 14 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
Device is on Mecklenburg County property.
Meck. Co. owns, operates and maintains the
device. NCDOT has retrofit credit for the
On NC 16 (Providence Rd) at the Brier Creek
device for treating NCDOT drainage. Tree
Dry Detention
Crossing in the NE quadrant. Device is at the
planting around the basin may occur in
D10 C060 0012
IM-10-60-DDB-3178
Mecklenburg
10
Basin
1
35.18316
-80.81975
N/A
NC 16
NC
Charlotte
former Dore Academy location.
November 2014
3
Owned and Maintained by Mecklenburg
County as of April 2016. DOT never received
mitigation credit for this wetland. Therefore
retrofit credit is being claimed for 20 years of
treatment prior to sale to Mecklenburg
County. This site treats 2 drainage area, thus
Just west of Leitner Drive and north of
2 credits. 1 more drainage area is treated by
Stormwater
second adjacent smaller wetland; next to
SCMS 2934 thus an additional credit for 3
D10 C060 0013
IM-10-60-SW-2933
Mecklenburg
10
Wetland
2
35.0866814
-80.8830032
R-0211DG
51
NC
Pineville
Little Sugar Creek
total.
4
Owned and Maintained by Mecklenburg
County as of April 2016. DOT never received
mitigation credit for this wetland. Therefore
retrofit credit is being claimed for 20 years of
treatment prior to sale to Mecklenburg
County. This site treats 1 drainage area, thus
Located at corner of NC-51 and Leitner Dr.;
1 credits. 2 more drainage areas are treated
Stormwater
south of a second larger wetland; adjacent to
by SCMS 2933 thus 2 additional credits for 3
D10 C060 0013
IM-10-60-SW-2934
Mecklenburg
10
Wetland
1
35.08564
-80.8822937
R-0211DG
51
NC
Pineville
Little Sugar Creek
total.
4
Dry Detention
NC-24/27: Approximately 600 feet east of SR-
D10_CO84_0001
IM-10-84-DDB-2170
Stanley
10
Basin
1
35.26054
-80.4074326
R-0967CA
24/27
NC
Locust
1213 (Pond Rd.) on left
2
Southwest of US 601 & NC 218, along US 601
D10 C090 0001
IM-10-90-FB-2307
Union
10
Filtration Basin
1
35.1380692
-80.5377731
R-4436JD
601
US
Fairview
southbound
3
Southwest of US601 & NC 218 intersection,
D10_C090_0002
IM-10-90-FB-2306
Union
10
Filtration Basin
1
35.1382294
-80.5381317
R-4436JD
NC 218
NC
Fairview
along eastbound NC 218
3
Northwest of US 601 & NC 218 intersection,
D10 C090 0003
IM-10-90-FB-2305
Union
10
Filtration Basin
1
35.1384315
-80.5381165
R-4436JD
218
NC
Fairview
along Westbound NC 218
3
Northwest of US 601 & NC 218 intersection,
Stormwater
along southbound US 601; across road from
D10 C090 0004
IM-10-90-SW-2304
Union
10
Wetland
1
35.1393814
-80.5377579
R-4436JD
601
US
Fairview
Exxon Station
3
Bioretention
1-77 SBL Welcome Center at Virginia Line and
D11 CO86 0001
IM-11-86-BB-1476
Surry
11
Basin
1
36.5581207
-80.7447128
R-4436 KA
77
1
Lowgap
located on the left of the exit ramp.
REST AREA
1
D11 C086 0002
IM-11-86-FB-2152
Surry
11
Filtration Basin
1
36.4186096
-80.7126999
M-0418 KA
1345
SR
Dobson
Bridge No. 56 over Fisher River
3
Dry Detention
North side of US 421 approx. 0.3mi. west of
D11 C095 0001
IM-11-95-DDB-3186
Watauga
11
Basin
1
36.24052
-81.52057
R-4436KC
US 421
US
Deep Gap
Old US 421
3
Along US-421EB from —1200' west of Old
D11 C095 0002
IM-11-95-S-3187
Watauga
11
Swale
1
36.23883
-81.51758
R-4436KC
US 421
US
Deep Gap
IUS421 to intersection.
3
Page 15 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
west of main building at rest area; over one
Bioretention
acre in size ; downstream of a hazardous spill
D11 C097 0001
IM-11-97-BB-2165
Wilkes
11
Basin
1
36.1344185
-81.1220627
K-4703
421
US
North Wilkesboro
basin
REST AREA
2
Hazardous Spill
Rest Area (NBL) entrance to car parking area
D11_C099_0001
IM-11-99-HSB-1491
Yadkin
11
Basin
1
36.1052895
-80.8115311
R-4436 KB
77
1
Buck Shoals
on far right.
REST AREA
1
D11 C099 0002
IM-11-99-FB-2161
Yadkin
11
Filtration Basin
1
36.1044693
-80.6566696
M-0418KB
601
US
Yadkinville
Bridge 980030 over South Deep Creek
3
County Maintenance Yard at rear of facility
and lowest elevation. Device to be inspected
by Division Roadside Environmental Engineer
Dry Detention
and maintained by County Maintenance
D12 CO02 0001
IM-12-2-DDB-1500
Alexander
12
Basin
1
35.9117699
-81.1358566
90
NC
Taylorsville
Engineer. RH
CMY
1
Bioretention
Rest Area (EBL) adjacent to bldg. Hazardous
D12 CO18 0001
IM-12-18-BB-1501
Catawba
12
Basin
1
35.7262192
-81.1278915
R-4436 LB
40
1
Claremont
spill basin is adjacent to this device.
REST AREA
1
Should be: Other -Stream Bank Drop
Structure, function is to be a stable
conveyance structure from the ditch line
Lee Cline Rd. (SR-1486); NW side of Bridge
down to the stream elevation to prevent
D12 CO18 0002
IM-12-18-0-2156
Catawba
12
Other
1
35.7490311
-81.2141495
M-0418 LA
1486
SR
Conover
No. 17 over Cline Creek
erosion and sediment loss.
2
Device constructed in Permit Term I, Not
functioning, needs repair. Please do not
Bioretention
Gastonia - NW of the interchange of US 321
change phase, it messes up the retrofit credit
D12 CO36 0001
IM-12-36-BB-1504
Gaston
12
Basin
1
35.3167381
-81.187912
R-4436 LA
US321/NC279
US
Dallas
& NC 279
count for NPDES compliance.
1
Dry Detention
D12 CO49 0001
IM-12-49-DDB-2826
Iredell
12
Basin
1
35.7559319
-80.8154984
R-2911A
70
US
US 70 & SR 2539
2
Southbound 1-77 Rest Area north of Lake
Stormwater
Norman at Cornelius Creek; before buildings
D12 CO49 0003
IM-12-49-SW-2369
Iredell
12
Wetland
1
35.631649
-80.864151
R-4436LD
77
1
Mooresville
on right along property line fence
REST AREA
3
Dry Detention
1-77SB Median on North side of Patterson
D12 CO49 0004
IM-12-49-DDB-3430
Iredell
12
Basin
1
35.930019
-80.85626
R-4436LE
1-77
1
Olin
Creek
4
Biofiltration
D12 CO49 0005
IM-12-49-BFC-3431
Iredell
12
Conveyance
1
35.927152
-80.855659
R-4436LE
1-77
1
Olin
1-77 Median South of Patterson Creek
4
Adjacent to Exit Ramp 1-40 EBL to US-74
D13 C011 0001
IM-13-11-S-1516
Buncombe
13
Swale
1
35.5651207
-82.4985428
R-4436 MA
40
1
Oakley
Alternate/1-240. Exit 53B.
1
Dry Detention
Located on left of exit ramp from 1-40 EBL to
D13 CO11 0002
IM-13-11-DDB-1517
Buncombe
13
Basin
1
35.6111603
-82.3192062
R-4436MB
40
1
Black Mountain
NC-9
1
Bioretention
US 70 Exit# 65 Located on on -ramp to 1-40
D13 CO11 0003
IM-13-11-BB-1515
Buncombe
13
Basin
1
35.6190605
-82.3051834
R-4436 MC
40
1
Black Mountain
EBL
1
Grassed filtration basin with concrete level
1-240 WBL, just west of Chunns Cove Rd. Just
spreader forebay. Expanded slate filter
D13 C011 0005
I IM-13-11-FB-2434
I Buncombe
13
Filtration Basin
1
35.599369
-82.5342789
R-4436ME
240
I
1 Asheville
lbefore Exit SB sign on right.
Imedia. Upturned underdrain pipes
3
Page 16 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
1-240 (EBL); Median of 1-240, just west of
D13 CO11 0006
IM-13-11-FB-2435
Buncombe
13
Filtration Basin
1
35.5983315
-82.5322189
R-4436ME
240
1
Ashville
Chunns Cove Rd.; start of guardrail
3 filtration basin cells
3
1-240 (EBL); just west of Chunns Cove Rd. on
4 filtration basin cells; another FB located
D13 CO11 0007
IM-13-11-FB-2436
Buncombe
13
Filtration Basin
1
35.5977707
-82.5327835
R-4436ME
240
I
Ashville
right
across highway in median section
3
Dry Detention
County Maintenance Yard at rear of facility
D13 CO12 0001
IM-13-12-DDB-1522
Burke
13
Basin
1
35.7077217
-81.6542435
18
NC
Petersburg
and lowest elevation
CMY
1
Difficult site to reach and will have to cross
Stormwater
1-26 NBL Exit #3 right (upstream) of bridge on
the stream to inspect all components or
D13 CO57 0001
IM-13-57-SW-1528
Madison
13
Wetland
1
35.9080505
1 -82.5551224
A-10CA
26
1
Little Creek
exit ramp.
come down steep fill slope.
1
Stormwater
1-26 NBL Exit #3 0.5 mi. south on NC-23A at
D13 CO57 0001
IM-13-57-SW-1529
Madison
13
Wetland
1
35.9054298
-82.5477066
A-10CA
26
1
Little Creek
County Maintenance Yard.
Device is functioning as a wildlife habitat
1
Construction completed Dec. 2017
1-26 Welcome Center, downgrade from the
Contractor is held until June 2018 for
D13 CO57 0002
IM-13-57-FB-3456
Madison
13
Filtration Basin
1
35.87322
-82.542409
R-4436MH
1-26
1
Mars Hill
Hazardous Spill basin
vegetation establishment.
4
Construction completed Dec. 2017
Contractor is held until June 2018 for
D13 CO57 0003
IM-13-57-FB-3457
Madison
13
Filtration Basin
1
35.864929
-82.533804
R-4436M1
1-26
1
Mars Hill
1-26 Scenic Overlook
vegetation establishment.
4
1-40WB rest area, cistern is located
underground off the SE corner of the
restroom bldg between bldg and
REST AREA; 6000 gallon cistern; Device will
D13 CO59 0002
IM-13-59-C-3007
McDowell
13
Cistern
1
35.6399689
1 -82.0173187
K-4909
1-40
1
Marion
sidewalk/vending bldg
be maintained by rest area staff RH
2
REST AREA; Permeable Interlocking Concrete
Permeable
Pavers; Device to be maintained by rest area
D13 CO59 0003
IM-13-59-PP-3008
McDowell
13
Pavement
1
35.6401253
-82.0136032
K-4909
1-40
1
Marion
1-40WB Rest Area
staff RH
2
REST AREA; 6000 gal cistern, located at SE
corner of restroom building; device will be
D13 CO59 0004
IM-13-59-C-3009
McDowell
13
Cistern
1
35.6392517
-82.0186157
K-4909
1-40
1
Marion
1-40EB Rest Area
maintained by rest area staff RH
2
REST AREA; Permeable Interlocking Concrete
Permeable
Pavers; Device to be maintained by rest area
D13 CO59 0005
IM-13-59-PP-3010
McDowell
13
Pavement
1
35.6389885
-82.0186615
K-4909
1-40
1
Marion
1-40EB Rest Area
staff RH
2
Hazardous Spill
D13 CO59 0006
IM-13-59-HSB-3398
McDowell
13
Basin
1
35.639108
-82.019125
R-4436MG
40
1
Marion
Hazardous Spill Basin
4
Construction completed Dec. 2017
Contractor is held until June 2018 for
D13 C100 0001
IM-13-100-FB-3458
Yancey
13
Filtration Basin
1
35.913112
-82.399681
R-4436MJ
US 19
US
Burnsville
Off of Possum Trot Road Park and Ride Lot
vegetation establishment.
4
US-64 Murphy Bypass (EBL); Closest
Hazardous Spill
Hiwassee River bridge to US-74; left side of
Inlet pipe drains into forebay, filtration basin,
D14 CO20 0001
IM-14-20-HSB-2026
Cherokee
14
Basin
1
35.0775604
1 -84.0261765
R-0977A
64
US
Murphy
bridge on service road before bridge
and finally through hazardous spill sluice gate
2
US-64 Murphy Bypass (EBL); Furthest
Hazardous Spill
Hiwassee River bridge to US-74; left side of
Inlet drains into forebay, filtration basin, and
D14 CO20 0002
IM-14-20-HSB-2025
Cherokee
14
Basin
1
35.0662613
-83.9726028
R-0977A
64
US
Murphy
bridge on service road before bridge
finally through hazardous spill sluice gate
2
Catch Basin
Balsam River Rest Area near US 23 & US 74
4 cbi's; all have been removed because of
D14 C044 0001
IM-14-44-CBI-2575
I Haywood
14
Insert
1
35.4448891
1 -83.0673676
R-4436NA
23
1US
I
linterchange
Ihigh maintenance costs REH
1 1
Page 17 of 18

NPDES PERMIT No. NCS000250 RETROFITS
Retrofit
Hydro ID Number
Control ID Number
County
Division
Control Type
Lat
Long
TIPNumber
Route
RouteType
Nearest Town
Location Description
Notes
Permit Term
Credits
Anticipated Project Completion Aug. 2013.
Contractor is way behind schedule and will
not complete until Spring 2014.- BSL per
Dry Detention
email with Aaron Powell. Device is still under
D14 CO45_0002
IM-14-45-DDB-2576
Henderson
14
Basin
1
35.2981949
-82.4059143
R-4430
1783
SR
East Flat Rock
US 176 & SR 1783 (Upward Rd)
construction. RH 8/21/2014
2
D14 CO45 0003
IM-14-45-S-2158
Henderson
14
Swale
1
35.375
-82.5490036
M-0418NA
1314
SR
Mills River
Bridge 440008 over Boylston Creek
3
Dry Detention
D14_COSO_0001
IM-14-50-DDB-1544
Jackson
14
Basin
1
35.379509
-83.257431
R-4436NB
441/74
US
Dillsboro
Off US 441 Exit Ramp Loop near Dillsboro
1
Contract was extended due to vegetation
establishment and corrections to forebays
US23/US74 & US23 Bus
needed. Division states this should occur in
D14 CO50 0002
IM-14-50-FB-3399
Jackson
14
Filtration Basin
1
35.391837
-83.195451
R-4436NC
Flyover
US
Sylva
North Basin
March 2017.
4
Contract was extended due to vegetation
establishment and corrections to forebays
US23/US74 & US23 Bus
needed. Division states this should occur in
D14 CO50 0003
IM-14-50-FB-3400
Jackson
14
Filtration Basin
1
35.391541
-83.196916
R-4436NC
Flyover
I
Sylva
South Basin
March 2017.
4
Contract Completion date is May 1, 2017.
Contractor is still under contract for
D14 CO56 0001
IM-14-56-FB-3401
Macon
14
Filtration Basin
1
35.22746
-83.35261
R-4436ND
US23/US441
US
Franklin
North Basin
vegetation establishment.
4
D14 CO56 0002
IM-14-56-FB-3402
Macon
14
Filtration Basin
1
35.227098
-83.353111
R-4436ND
US23/US441
US
Franklin
South Basin
Contract Completion date is May 1, 2017.
4
Subtotal
241
NON-STRUCTURAL RETROFITS
PWS (Pet Waste Station) Credit 14
Fish Logo 17
Eroding Slopes -Compost Seeding 2011 Div. 2-5, 7-10 8
TOTAL CREDITS:
ait
Page 18 of 18