20200545 Ver 1_More Info Received_20200908

Strickland, Bev
From: David Weikle <[e-mail]>
Sent: Tuesday, September 8, 2020 4:03 PM
To: Annino, Amy M; James Gamertsfelder; Slusser, Thomas
Subject: FW: [External] RE: Bostic Landfill site
Attachments: BOSTIC - EROSION CONTROL.pdf
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Sorry about that. Here's the attachment.
David Weikle, P.E.
Senior Project Engineer
From: David Weikle
Sent: Tuesday, September 8, 2020 3:58 PM
To: Annino, Amy M <[e-mail]>; James Gamertsfelder <[e-mail]>;
Slusser, Thomas <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
Amy,
I've clouded the additions to the drawings for your review. Let me know what you think?
David Weikle, P.E.
Senior Project Engineer
From: Annino, Amy M <[e-mail]>
Sent: Wednesday, September 2, 2020 5:22 PM
To: David Weikle <[e-mail]>; James Gamertsfelder <[e-mail]>;
Slusser, Thomas <[e-mail]>
Cc: Smith, Mike M <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
Mr. Weikle,
Thank you for your reply.
Please see the NC Erosion and Sediment Control Planning and Design Manual, Chapter 8 - Appendices:
https://fi les. nc.gov/ncdeg/Energy%20Mi neral%20and%20Land%20Resources/Land%20Resources/Land%20Qual ity/Erosi
on%20and%20Sediment%20Control%20Planning%20and%20Design%20Manual/Chapter%208/Chapter%208 rev%20Ma
y%202013.pdf
In Table 8.05d (on Page 8.05.9) for Maximum Permissible Velocities for Unprotected Soils in Existing Channels, the
maximum permissible velocity for ordinary firm loam is listed as 3.5 fps. The velocity you have calculated for the
proposed ditch is 4.89 fps. In light of this, the Division is concerned that erosion will occur in the ditch as it is currently
designed and transport sediment into downstream surface waters, thereby causing water quality violations

downstream. The Division will not issue a certification for a project that will cause downstream surface water quality
violations.
The Division would like to sees changes made to the proposed S1 impact to prevent this from happening. This could
include placing the S1 stream in a culvert. Alternatively, it could include making changes to the S1 stream channel
bottom (adding imported rock to create roughness and habitat while reducing velocity and erosion) and adding grade
control throughout the channel with —2 permanent structures. You might consider these as possible changes to create
greater stability in the stream channel and prevent erosion into downstream waters.
I spoke with Thomas Slusser today about my concerns and he has arranged a phone call tomorrow at gam. I look
forward to discussing this with all involved.
Amy Annino
Environmental Specialist —Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
828 296 4656 office
984 232 1222 mobile
amy.anninoa-ncdenr.gov
DE QO% c")
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are
on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time.
From: David Weikle[mailto:[e-mail]]
Sent: Tuesday, September 1, 2020 3:49 PM
To: Annino, Amy M <[e-mail]>; James Gamertsfelder<[e-mail]>
Cc: Smith, Mike M <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Amy,
Please see below.
Also, revised plans are going out in the mail tomorrow for both Mike and Amy.
David Weikle, P.E.

Senior Project Engineer
From: Annino, Amy M <[e-mail]>
Sent: Friday, August 28, 2020 3:02 PM
To: David Weikle <[e-mail]>
Cc: Smith, Mike M <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
Mr. Weikle,
Thank you for providing the Division with the revised drawings, calculations, and response letter. After speaking with
Mike Smith (DEMLR), I understand that you have provided DEMLR with revisions to the plan and associated calculations.
Please see my comments below:
• Please provide the Division with the most recent revised project plans. [15A NCAC 02H .0502 (b)(3)] SHIELD IS
MORE THAN HAPPY TO PROVIDE DWR WITH THE LATEST APPROVED DRAWINGS.
• Please provide calculations showing that all stormwater entering jurisdictional waters at station 0+60 will be at
non -erosive velocities (2.5 ft/second) for the 10 year storm event. SHIELD HAS ATTACHED CALCUATIONS
SHOWING THE PRE- OF POST -PROJECT FLOWS AT STATION 0+30. A ROUGHNESS COEFFICIENT OF 0.035 WAS
USED (OPEN CHANNELS— EARTH FAIRLY UNIFORM —SIDES CLEAN, COBBLE BOTTOM) FOR BOTH THE BEFORE
AND AFTER CONSTRUCTION. AS CAN BE SEEN, THE VELOCITY ACTUALLY DECREASES FROM 6.32 TO 4.89 DUE TO
THE PROPOSED WIDENING OF THE CHANNEL. IT SHOULD ALSO BE NOTED THAT BASED ON THE NATURAL SLOPE
OF THE CHANNEL AND THE ACTUAL DRAINAGE AREA FEEDING THE CHANNEL, A VELOCITY OF 2.5 FPS IS
IMPOSSIBLE TO PROVIDE.
Impact S1: Provide justification for the proposed stream channel dimensions based on reference reach
information or stable dimensions upstream and downstream of the impact area. Size the channel appropriately
to prevent future channel aggradation or degradation. [15A NCAC 02H .0506 (b)] THE CHANNEL WAS SIZED TO
GRADUALLY NARROW/TRANSITION FROM OUR UPPER DITCH WIDTH OF 10' TO THE NATURAL WIDTH OF THE
CHANNELATTHE PROPERTY LINE.
Pursuant to Title 15A NCAC 02H .0502(c), the applicant shall furnish all of the above requested information for the
proper consideration of the application. If all of the requested information is not received by September 28, 2020, the
Division will be unable to approve the application and it will be returned.
Amy Annino
Environmental Specialist — Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
828 296 4656 office
984 232 1222 mobile
amy.anninoa-ncdenr.gov
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties

Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are
on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time.
From: David Weikle [mailto:[e-mail]]
Sent: Thursday, July 2, 2020 12:14 PM
To: Annino, Amy M <[e-mail]>
Cc: Smith, Mike M <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
• External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
IFORROWarn2ric.gov
Amy/Mike,
Attached you will find the revised drawings, ditch calculations, and a comment response letter. Please let me know if
either of you need anything else.
Have a nice Holiday.
David Weikle, P.E.
Senior Project Engineer
From: Annino, Amy M <[e-mail]>
Sent: Thursday, July 2, 2020 8:26 AM
To: David Weikle <[e-mail]>
Subject: RE: [External] RE: Bostic Landfill site
Hi David,
You can send me electronic revisions via email if the file isn't too large. Paper copies to the Swannanoa address are also
acceptable. Thank you,
Amy Annino
Environmental Specialist —Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
828 296 4656 office
984 232 1222 mobile
amy.anninoa-ncdenr.gov
.._ D7;,.
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties

Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are
on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time.
From: David Weikle [mailto:[e-mail]]
Sent: Wednesday, July 1, 2020 12:26 PM
To: Annino, Amy M <[e-mail]>
Subject: [External] RE: Bostic Landfill site
LExternal email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Amy,
I'll work on addressing the comments. In the meantime, where should I submit the new drawings? Do they need to be
paper copies sent to the address in Swannanoa?
David Weikle, P.E.
Senior Project Engineer
From: Annino, Amy M <[e-mail]>
Sent: Wednesday, July 1, 2020 7:21 AM
To: David Weikle <[e-mail]>
Cc: Smith, Mike M <[e-mail]>
Subject: Bostic Landfill site
On April 15, 2020, the Division of Water Resources (Division) received your application dated April 8, 2020 requesting a
401 Water Quality Certification from the Division for the subject project. On April 15, 2020, the application was placed
on hold while the Division determined whether an application fee was required. On May 8, 2020, the Division
determined that an application fee was not necessary. After initial review of the application, the Division has determined
that your application is incomplete and cannot be processed. The application is on hold until the following items are
addressed:
1. The plan proposes to excavate landfill material from within and below an existing intermittent stream. After
excavation is complete, a 10 foot wide ditch with a 5.2% slope will be graded to provide a channel for the
intermittent stream below an existing spring head (to remain undisturbed). The new ditch will be stabilized with
seed, straw, and coir matting. No grade control within the proposed ditch has been proposed.
a. The Division is concerned about stream channel stability within the proposed 10 foot wide, 5.2% slope
ditch. Please provide calculations showing that streamflow and stormwater flow will not degrade the
restored channel or downstream waters. [15A NCAC 02H .0506(b)(2) and (b)(3)]
2. Wattles are specified as 'Excelsior Wattle' in the drawing within the Sediment Wattle detail on sheet 9. All
wattles specified for placement in jurisdictional waters should be either a coir log or coir wattle and contain no
plastic netting or mesh. Please provide a specification sheet on selected product and update the plan
accordingly.
a. What is the timeline for maintaining and removing wattles from the stream after the project has
concluded? The wattles should not be left permanently.
b. Any sediment removed from behind wattles in the stream should be performed by hand with shovel and
bucket and spoils should be stabilized at least 30 feet from surface waters. Please provide a location on
the plan for spoils to be deposited and stabilized.

3. Is application of PAM proposed for all wattles? Use of PAM is not allowable on wattles in jurisdictional waters.
Please indicate this in the plan set.
4. The plan shows a silt fence outlet to be installed at the LOD within the channel of the intermittent stream.
a. This Office believes that the silt fence outlet can be revised to avoid and minimize the impacts to the
stream. Please provide an alternative to installing a silt fence outlet within the channel of the
intermittent stream. [15A NCAC 02H .0506(f) and (g)]
5. At what station do you expect to begin the pump around sequence? Please provide more detail on where / how
you intend to pump spring flow and stream flow (as well as any groundwater seepage) around the work area to
protect downstream waters.
Pursuant to Title 15A NCAC 02H .0502(c), the applicant shall furnish all of the above requested information for the
proper consideration of the application. If all of the requested information is not received by August 1, 2020, the
Division will be unable to approve the application and it will be returned.
Amy Annino
Environmental Specialist —Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
828 296 4656 office
984 232 1222 mobile
amy.anninoa-ncdenr.gov
D;,, _. E
:.snx� M A r..arrrr �x�
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or are
on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging time.

F-j
ROSION & SEDIMENT CONTROL PLANS
W �
FOR
A N �BOSTIC LANDFILL I 1 117
Sheet List Table
Sheet
Number
Sheet Title
1
COVER
2
EXISTING CONDITIONS
AERIAL PLAN
EXCAVATION PLAN
GRADING PLAN
3
4
5
6
EROSION & SEDIMENTATION PLAN
7
DETAILS 1
8
DETAILS 2
9
DETAILS 3
10
MISCELLANEOUS NOTES
11
NC DEQ STABILIZATION NOTES
NC DEQ SELF INSPECTION NOTES
12
B OSTIC., R UTHERFORD COUNTY, NOR TH CAR OLINA
SEE EXPANDED
SITE MAP BELOW
N O RTH
------------
---_
CAROLINA
RUTHERFORD COUNTY,
VICINITY MAP SCALE: N.T.S.
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-------------
CONTACT INFORMATION
OWNER/DEVELOPER
NCDEQ - DIVISION OF WASTE MANAGEMENT
217 WEST JONES STREET
RALEIGH, NORTH CAROLINA
[phone]
SURVEYOR
ENGINEER
SHIELD ENGINEERING, INC.
4301 TAGGERT CREEK ROAD
CHARLOTTE, NC 28208
[phone]
CLIENT CONTACT
MR. THOMAS SLUSSER
[phone]
TOTAL DISTURBED AREA: 1.95 ACRES
SITE ENTRANCE: N 35.3607 W 81.8418
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�/� ONE ;' 1 1 O LIMITS OF �V
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AREA FOR NATURAL SPRINGg�0' °
FLOW BLOCKAGE (SAND .• •. ------- �� LL / /F' b b �� b b b ; b b \ I i i ; ; I m m Lu
BAGS) DURING DEWATERING - - s, g
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LEGEND:
/ — O O O O O O O O O PERIMETER )U
____ _ _ b b b O� b b b b b b b � 1, ,f o, n d i 1 z
--- -
I -DITCH 3 SEEUJI
O�O�O/ O O 1 , DETAIL ON O O O O O 6.06 TEMPORARY CONSTRUCTION
b� SHEET #7. \ 0 0 0 0 o ENTRANCE
LL , `, 1 ; I i
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c - -- �� �� �� �� 6.22 TEMPORARY PERIMETER DIKE
/ \ PERIMETERool POSSIBLE \ 1 \
LAYDOWN AREA
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/// - 001 � � DETAIL ON RIP RAP ' ,, --- \ ,``
/ --' SHEET#7. DITCH ; ' ---- WELL
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WATTLE
_ / TEMPORARY \ `
_ (DRAWING #8) �------
_— _ ANY SEDIMENT REMOVED FROM BEHIND WATTLES IN THE STREAM � W
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'--------------------' \ "---------------------- - E
< —« — DETAIL ON /N SPOILS SHOULD BE STABILIZED AT LEAST 30 FEET FROM STREAM J � O Q � J
-----------------------------------------, —
BE THE TEMPORARY STOCKPILE
, /---------- SHEET #%. I —
`� IDEAL RELOCATION AREA SHOULD L.L � U Z N �
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STOCKPILE NOTE: Q � � Q 0
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---
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LJA MES D. Cu
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Figure 6.03a Bulldozer treads
create grooves perpendicular to the1�
'
slope. The slope face should not be
back -bladed during the final grading
operation (source: Va SWCC).
Slope
-� -- �:� • �� .mil
Debris from slope
above is caught
by steps.
Drainage
�-- Greater — 0
than vertical
t IfMIRffl-R
2-3'
(depending on material)
►I I I I �I i l l �I I I I It=
Figure 6.03b Stair stepping cut slopes (modified from Va SWCC).
Cut steps with
drainage to the back.
Avoid low spots.
�` II I Il ill,
6-15
Groove by cutting furrows
along the contour. Irregularities ITT
in the soil surface catch rainwater and retain lime, fertilizer, and seed. ,
, �I
I
1-3 "
IIEE�IIII I=11111
Figure 6.03c Grooving slopes (modified from Va SWCC).
6.03: TEMPORARY SLOPE GRADING
SCALE: H: 1" = 25'
V: 1" = 5' PERMANENT STORM PIPE PROFILE
6" MIN.
TEMPMORARY PLASTIC POLY OVERLAP
FLOW
6" MIN. SHEETING (MIN. 10 MIL)
DEPTH _
I —III _ 3 1 _ III —I I
� I I-
0
I-1 I III I Z I dil I —
TEMPORARY PERIMETER DITCH (TYP.)
N.T.S.
NOTE: ALL DITCHES MUST BE MATTED WITH A PLASTIC POLY MATTING. SECURE
TO GROUND WITH APPROPRIATE PINS. PINS SHOULD BE PLACED EVERY 10
FEET WTH FIVE PINS PLACED IN EACH ROW. WHERE SHEETS OVERLAP, UPPER
ELEVATION SHEET SHOULD OVERLAP LOWER ELEVATION SHEET. CHECK ALL
DITCHES AFTER EACH RAIN EVENT AND REPAIR ANY DAMAGES IMMEDIATELY.
PIPE OUTLET OR
TEMPORARY PERIMETER
DITCH TO FLAT AREA NO
WELL- EFINEn CHANNEL
W2
PLAN VIEW
La
4r=-
,,ri
gP(TI(lNl A -A
FILTER BLANKET
RIP RAP
OUTLET #1
NOTES:
1. La IS THE LENGTH OF THE RIPRAP APRON.
2. d=1.5 TIMES THE MAXIMUM STONE DIAMETER
BUT NOT LESS THAN 61'
.
3. IN A WELL-DEFINED CHANNEL EXTEND THE
APRON UP THE CHANNEL BANKS TO AN
ELEVATION OF 6" ABOVE THE MAXIMUM
TAILWATER DEPTH OR TO THE TOP OF THE
BANK, WHICHEVER IS LESS.
4. A FILTER BLANKET OR FILTER FABRIC SHOULD
BE INSTALLED BETWEEN THE RIPRAP AND SOII
FOUNDATION.
5. USE "NO WELL-DEFINED CHANNEL" DETAIL FOI
ALL RIPRAP OUTFALL CONSTRUCTION.
RIP RAP
OUTLET #2
LABEL
DIMENSION
DIMENSION
La
12'
20'
W i
8'
6'
Wo
12'
22'
6.42: TEMPORARY RIP RAP OUTLET
85C
840_
0+00
SCALE: H: 1" = 25'
V:1"=5'
EXISnNG ROAD
6" HUMP TO DIVERT RUNOFF t
FROM EXISTING ROAD
FROM EXISTING ROAD
2•-3' COARSE .AGGREGATE
(RAILROAD BALLAST)
NOTES:
t. A STABILIZED PAD OF CRUSHED STONE SHALL SE LOCATED WHERE
TRAFFIC MALL. BE ENTEMNG OR LEAVING A CONSTRUCTION SITE To OR
FRORJ AN EXISTING ROAD.
2. STONE TO BE 2 - 3 INCH WASHED STONE RAILROAD BALLAST,
3. THE ENTRANCE SHALL BE WAAWTAINED IN A CONDITION 9WNCH wILL
PREVENT TRACJGNG OR FLOWING OF SEDIMENT ONTO PUBLIC STREETS
OR EXSTING PAVEkENT, THIS MAY REQUIRE PERIODIC TON DRESSING
WTH AMTICNAL STONE AS CONDITIONS DEMAND ANo REPAR AND/CR
CLEAt"T OF ANY MEASURES USED TO TRAP iEDj MENT.
4. ALL SEDIMENT SPEl.ED. DROPPED, WASHED OR TRACKED ONTO PuBuc
STREETS MUST BE REMOVED wwEDIATELY.
3. *IN NECESSARY *IEELS MUST 8E CLEANED TO REMOVE SEDIMENT
i FX* TO ENTERING A PUBLIC STFW, MeN WASHJNG IS REQUIRED,
rr SHALL BE DONE ON AN AREA STABILIZER WITH CRjjSHED STOW
W ICH DRAMS INTO AN APPROVED SEDIMENT BASIN.
6. REFERENCE NCOENR LAND QUALITY SEC7ION DES" MANUAL: 6.06
STABILIZED CONSTRUCTION ENTRANCIZ
/
EX. GRADE @
C/L OF PIPE
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TEMPORARY STORM PIPE PROFILE
1 S7
WIRE
FENCI
WOVEN
FILTER
FABRIC
18' max. standard str(
6' max. extra streng`
Steel
post
Wire 18-24"
fence
fabric with wire fence
ric without wire fence
Plastic or
wire ties
124"
8" down & 4"
forwardalong
the trenchFilter
fabric
24"
Wire
fence
Cross -Section
View
Filter
Steel fabric Backfill trench Natural
post and compact ground
� thoroughly
m m m m m mmmmm
.r m mm mmm m
m mmm° m m m m
mmmm m m4" mmmm Upslope
mmm min m m• ��,
mm mm mmmmm
mmmm mm m 8„
m m m m
mmm mmm m m m • min
mm mmm •mmm•
m m mmmmm • mm
m m mmm
mm m mmm mm m•
mmmm mmmm mm
mmmmm m
Figure 6.62a Installation detail of a sediment fence.
6.62: SILT FENCE
GENERAL NOTES:
A' \ A A V
Natural
ground
1. SEDIMENT FILTER OUTLET SHALL BE 16 INCHES HIGH BUT NO TALLER THAN 18
INCHES.
2. CLASS 1 OR 2 RIP -RAP SHALL BE USED AND COVERED WITH 4 INCHES OF NCDOT #5
OR #57 WASHED STONE ON THE UPSLOPE SIDE.
3. POSTS SHALL BE NO MORE THAN 4 FEET APART.
870 4. SITE OUTLETS AT ANY POINT SMALL CONCENTRATED FLOWS ARE ANTICIPATED
AND AT THE DIRECTION OF THE INSPECTOR.
5. ONE ACRE MAXIMUM DRAINAGE AREA PER OUTLET.
STEEL POST
CLASS 1 OR 2 1' MIN.
RIP -RAP WASHED STONE
�(NCDOT #5 OR
#57)
FLOW
850
— 840
2+81
MAINTENANCE NOTES:
1. FILTER OUTLETS SHALL BE INSPECTED BY THE FINANCIALLY RESPONSIBLE
PARTY OR HIS AGENT IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST
DAILY DURING PROLONGED RAINFALL. ANY REPAIRS NEEDED SHALL BE
MADE IMMEDIATELY.
2. THE STONE SHALL BE REPLACED PROMPTLY AFTER ANY EVENT THAT HAS
CLOGGED OR REMOVED IT.
3. SEDIMENT DEPOSITS SHOULD BE REMOVED WHEN DEPOSITS REACH HALF
THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN
PLACE AFTER THE SILT FENCE OUTLET IS REMOVED SHALL BE DRESSED TO
CONFORM TO THE EXISTING GRADE, PREPARED AND SEEDED.
SILT FENCE OUTLET
TO BE INSTALLED AS NEEDED
N.T.S.
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SEE NOTE BELOW
SEE NOTE BELOW *
Mav 1 to August 1-
Seeding Mixture Species
Application Rate
(I h/acre)
131-omito Millct
10
Kcntucky 31 Tall Fescue (Drou-,ht Tolerant)
100
White Clover Persistent Pcrennial)
10
August 1- to Mav° 1
Seeding Mixture Species
Application Rate
(lb/acre)
Ryc Grain
40
Kentucky 3I Tall Feseue (Drought Tolerant)
100
White Cl'm cr (Persisten( Pcrennial)
10
PERMANENT SEEDING SPECIFICATIONS
NOTE: SERICIA & KOREAN LESPEDEZA IS CONSIDERED AN INVASIVE SPECIES AND IS NOT TO
BE USED ON THIS SITE.. THE FOLLOWING SPECIES CAN BE USED AS AN ALTERNATE
SUBSTITUTION: 1) SWITCHGRASS (PANICUM VIRGATUM), 2) SPLITBEARD BLUESTEM
(ANDROPOGON TERNARIUS), 3) BEGGARLICE (DESMODIUM SPP.), 4) PARTRIDGE PEA
(CHAMAECRISTA FASCICULATE).
FOR LATE WINTER AND SOIL AMENDMENTS:
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL
EARLY SPRING: LIMESTONE AND 750 LB/ACRE 10-10-10 FERTILIZER
SEEDING MIXTURE: MULCH:
RYE (GRAIN) - 120 LB/ACRE APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR A
ANNUAL LESPEDEZA (KOBE) - 50 LB/ACRE MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A
(OMIT ANNUAL LESPEDEZA WHEN MULCH ANCHORING TOOL
DURATION OF TEMPORARY COVER IS
NOT TO EXTEND BEYOND JUNE) MAINTENANCE:
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, FERTILIZE AND MULCH
SEEDING DATES: IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE
JAN. 1 - MAY 1
FOR SUMMER:
SEEDING MIXTURE:
GERMAN MILLET - 40 LB/ACRE
(A SMALL -STEMMED SUDANGRASS MAY
BE SUBSTITUTED AT A RATE OF 50
LB/ACRE)
SEEDING DATES
MAY 1 - AUG. 15
FOR FALL:
SEEDING MIXTURE:
RYE (GRAIN) - 120 LB/ACRE
SEEDING DATES:
AUG. 15 - DEC 30
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
SOIL AMENDMENTS
FILL
MATERIAL
STABLE
NATIVE SOIL \/
0.50
v� BACKFILL
(57 STONE)
-------- ----------------------------- --------- \
HAUNCH
(57 STONE)
/\ 6" BEDDING
SEPARATION \
FABRIC (SEE I 14" MIN.
NOTE #5 BELOW) 24" MAX.
(TYP.)
V WIDTH CENTRAL BEDDING
LOOSELY PLACED
NOTES:
1. BEDDING SHOULD BE LOOSELY PLACED BELOW THE PIPE AND COMPACTED ON ITS
OUTER EDGES.
2. HAUNCH MATERIAL SHOULD BE WORKED IN AROUND PIPE BY HAND TO PROVIDE
UNIFORM SUPPORT. KNIFE IN TO REMOVE ANY VOIDS. COMPACT IN 4" LIFTS TO
90% SPD.
3. BACKFILL MATERIAL TO BE PLACED IN LIFTS NO MORE THAN 6" IN HEIGHT.
COMPACT TO 90% SPD.
4. FILL MATERIAL SHOULD BE NATIVE SOIL OR GRAVEL FREE OF WASTE MATERIAL
COMPACTED IN 6" LIFTS TO 90% SPD.
5. SEPARATION FABRIC SHOULD HAVE MIN. TENSILE STRENGTH (AT ULTIMATE) OF
2,600 LBS/FT. AND FLOW MIN. FLOW RATE OF 40 GAL/MIN/SF.
:•1
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND 88C
AGRICULTURAL LIMESTONE AND 1,000 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:
REPAIR AND REFERTILIZE DAMAGED AREAS IMMEDIATELY. TOPDRESS WITH 50 LB/ACRE OF
NITROGEN IN MARCH. IF IT IS NECESSARY TO EXTEND TEMPORARY COVER BEYOND JUNE 15,
OVERSEED WITH 50 LB/ACRE KOBE LESPEDEZA IN LATE FEBRUARY OR EARLY MARCH.
87C
TEMPORARY SEEDING SCHEDULE
GENERAL NOTES:
1. BEFORE THE START OF ANY EARTHWORK, THE CONTRACTOR SHALL CONDUCT A PRE -CONSTRUCTION MEETING
WITH A NC DEQ EROSION CONTROL FIELD INSPECTOR, SHIELD ENGINEERING, AND A REPRESENTATIVE FROM THE
NC PRE-REG LANDFILL DIVISION. A POST -CONSTRUCTION MEETING IS REQUIRED BEFORE ANY EROSION CONTROL
MEASURES ARE REMOVED.
2. ALL EROSION CONTROL MEASURES AND MATERIALS SHALL CONFORM TO THE NORTH CAROLINA EROSION AND
SEDIMENT CONTROL PLANNING AND DESIGN MANUAL.
3. ALL EROSION CONTROL MEASURES AND FACILITIES SHALL BE INSPECTED ON A WEEKLY BASIS AND AFTER ALL
RAINFALL EVENTS GREATER THAN 1/2" IN ORDER TO VERIFY THEIR EFFECTIVENESS. ANY AND ALL DEFICIENCIES
SHALL BE CORRECTED IMMEDIATELY.
4. CHECK DAMS MAY BE USED IN SLOPING DITCHES OR CHANNELS TO SLOW VELOCITY AND MINIMIZE / ELIMINATE
SEDIMENTATION.
5. EXISTING SUBGRADE SHALL BE GRADED TO A SMOOTH AND CONSISTENT GRADE TO MATCH BOTH THE EROSION
CONTROL PLAN AND EXISTING CONDITIONS IN THE FIELD.
6. UNDER NO CIRCUMSTANCES SHALL ANY NEW CUT OR FILL SECTION BE GRADED AT A SLOPE STEEPER THAN 2H:1V.
7. THE "STAGING/STOCKPILE AREA" SHOWN ON PLAN IS TO BE CLEARED AND EROSION CONTROL MEASURES
ESTABLISHED ONLY IF THE AREA IS NEEDED FOR JOB SITE TRAILER, STOCKPILES, WASTE STORAGE, EMPLOYEE
PARKING, ETC. ANY AREA NOT NEEDED OR REQUIRED SHALL BE LEFT UNDENUDED AND UNDISTURBED.
2" ABC STONE
(SEE NOTE BELOW) L2:'
=1I1=1I1=1I1=1I1=1I1=1I1=1I1=1I1=1I1=1I1=1I1=1I1=1-II1=w_
COMPAcrED
SUBGRADE WOVEN
GEOTEXTILE
FABRIC
TEMPORARY GRAVEL LAYDOWN AREA
N.T.S.
NOTES:
1. GRAVEL CAN BE REPLACED WITH TEMPORARY GROUND
PROTECTION MATTING BASED ON UNIT COST.
2. IF ACCESS ROAD OR PROTECTION MATTING BECOME MUDDY,
RUTTED OR UNSTABLE, REMOVE OBJECTIONABLE MATERIAL
AND PROVIDE A MORE STABLE SUBSTITUTION.
:•1
:�1
PIPE BEDDING DETAIL
(SEE CHART BELOW)
A
MATTING #3
(SEE CHART BELOW)
DITCH PROFILES
B
�/ PROFILE FOR DITCH
18" CLASS 'A' LINE BETWEEN STATIONS 2+18 TO 4 +15
RIP RAP
DITCH DIMENSIONS (FT.)
STATION
A (NW SIDE OF DITCH)
B
C (SE SIDE OF DITCH)
D
LINING
0+00 - 0+60
0+60 - 2+18
2+183+06
3+06 - 4+00
4+00 - 4+15
3.00 (3:1 SLOPE)
3.00 (3:1 SLOPE)
6.00 (3:1 SLOPE)
6.00 (3:1 SLOPE)
4.50 (3:1 SLOPE)
10.00
4.00 (4:1 SLOPE)
4.00 (4:1 SLOPE)
8.00 (4:1 SLOPE)
6.00 (3:1 SLOPE)
4.50 (3:1 SLOPE)
1.00
COIR MATTING #1 (SEE NOTE)
TURF MATTING #2 (SEE NOTE)
CLASS "B" RIP RAP
CLASS "B" RIP RAP
CLASS "B" RIP RAP
10.00
1.00
10.00
2.00
3.00
2.00
3.00
1.50
MATTING NOTES:
1. MATTING #1 MUST CONSIST OF A COIR (BIODEGRADABLE) MATERIAL SUCH AS STRING NETTING AND CONSIST OF STRAW OR COCONUT MATRIX. IT MUST BE RATED FOR AN
UNVEGETATED FLOW OF A MINIMUM 8 FPS.
2. MATTING #2 MUST CONSIST OF A COMPOSITE NETTING (POLYPROPYLENE) AND CONSIST OF STRAW OR COCONUT MATRIX. IT MUST BE RATED FOR AN UNVEGETATED
RAINFALL FLOW OF A MINIMUM 8 FPS.
3. MATTING #3 MUST CONSIST OF A NON -WOVEN PERVIOUS SHEET OF POLYPROPYLENE FIBERS. THE TENSILE STRENGTH MUST BE A MINIMUM OF 200 LBS. AND A
TRAPEZOIDAL TEAR OF 80 LBS.
4. MATTING #4 (TO BE USED TO COVER FRESHLY GRADED AREAS AFTER FINAL GRADE) MUST CONSIST OF A STRAW FIBER MATRIX COVERED WITH 100% BIODEGRADABLE
WOVEN NATURAL FIBER NETTING.
5. ALL MATTINGS ARE TO BE PINNED TO GROUND USING MANUFACTURER'S SPECIFICATIONS AND DIRECTIONS.
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x
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SEE NOTE DOWEL(SEE NOTE)
SECTION X-X
N
GENERAL NOTES:
USE CLASS "B" CONCRETE THROUGHOUT.
PROVIDE ALL DROP INLETS OVER 3'-6" IN DEPTH WITH STEPS 12"
ON CENTER. USE STEPS WHICH COMPLY WITH STD. DRAWING 840.66.
OPTIONAL CONSTRUCTION - MONOLITHIC POUR 2" KEYWAY OR #4 BAR DOWELS AT
12" CENTERS AS DIRECTED BY THE ENGINEER.
USE FORMS FOR THE CONSTRUCTION OF THE BOTTOM SLAB.
IF REINFORCED CONCRETE PIPE IS SET IN BOTTOM SLAB OF BOX, ADD TO SLAB
AS SHOWN ON STD. NO. 840.00.
CONSTRUCT WITH PIPE CROWNS MATCHING.
SEE STANDARD DRAWING 840.25 FOR ATTACHMENT OF FRAMES AND GRATES NOT SHOWN.
INSTALL 2" WEEPHOLES AS DIRECTED BY THE ENGINEER.
INSTALL STONE DRAINS, OF A MINIMUM OF 1 CUBIC FOOT OF NO. 78M STONE IN A
POROUS FABRIC BAG OR WRAP, AT EACH WEEP HOLE OR AS DIRECTED BY THE ENGINEER.
CHAMFER ALL EXPOSED CORNERS 1".
DRAWING NOT TO SCALE.
#4 BAR
B 6"
N
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I 6„
I
DOWEL
MAX. PIPE THIS SIDE - 18" '
SECTION Y-Y
DIMENSIONS AND QUANTITIES FOR DROP INLET(BASED ON MIN. HEIGHT, H)
DIMENSIONS OF BOX & PIPE
CUBIC YARDS
CONC. IN BOX
DEDUCTIONS FOR
ONE PIPE
PIPE
SPAN
WIDTH
MIN. HEIGHT
D
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B
H
BOTTOM
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WALL PER
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TOTAL
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2'-0"
2'-0"
0.222
0.222
0.592
0.015
0.026
15"
2'-3"
0.648
0.023
0.036
18"
2'-6"
0.703
0.033
0.049
24"
3'-0"
0.814
0.059
0.085
30"
3' 0"
2'-0"
3'-6"
0.222
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0.092
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SECTION E-E SECTION F-F
DROP INLET #2
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ISOMETRIC VIEW
STAKE
CROSS SECTION
VEE DITCH
CROSS SECTION
TRAPEZOIDAL DITCH
GROUND
GENERAL NOTES:
1. USE MINIMUM 12 INCH DIAMETER COIR WATTLE OR COIR LOG.
2. ALL COIR WATTLES OR LOGS MUST NOT CONTAIN ANY PLASTIC NETTING OR MESH.
3. USE 2 FT. WOODEN STAKES WITH A 2 IN. X 2 IN. NOMINAL CROSS SECTION
4. ONLY INSTALL WATTLE(S) TO A HEIGHT IN DITCH SO FLOW WILL NOT WASH AROUND WATTLE AND
SCOUR DITCH SLOPES AND AS DIRECTED.
5. INSTALL A MINIMUM OF 2 UPSLOPE STAKES AND 4 DOWNSLOPE STAKES AT AN ANGLE TO WEDGE
WATTLE TO BOTTOM OF DITCH.
6. PROVIDE STAPLES MADE OF 0.125 IN. DIAMETER STEEL WIRE FORMED INTO A U SHAPE NOT LESS
THAN 12" IN LENGTH.
7. INSTALL STAPLES APPROXIMATELY EVERY 1 LINEAR FOOT ON BOTH SIDES OF WATTLE AND AT EACH
END TO SECURE IT TO THE SOIL.
8. INSTALL MATTING IN ACCORDANCE WITH SECTION 1631 OF THE NCDOT STANDARD SPECIFICATIONS.
INSET A INSET B INSET C
L GROUND
FLOW
SEDIMENT WATTLE
LTER MEDIA (SEE NOTE 2)
SILT FENCE AS NEEDED PUMP
� FLOW
VEGETATIVE BUFFER
�I
TEMPORARY
PLASTIC/POLY
COVER
NOTE:
1.
PRIOR TO INSTALLATION, MANUFACTURER SPECIFICATIONS OF FILTER MEDIA SHALL BE PROVIDED TO
SHIELD ENGINEERING FOR APPROVAL AND USE. BASED ON NATIVE SOILS ON THIS SITE, DISCHARGE
FROM FILTER MEDIA SHALL NOT PASS ANY SOIL LARGER THAN 180 MICRONS (85 SIEVE).
2.
ENSURE THAT PUMP PRESSURE DOES NOT EXCEED FILTER MEDIA PRESSURE RATING.
WATER LEVEL
3.
FILTER MEDIA MAY BE, BUT NOT LIMITED TO, SAND MEDIA FILTRATION DEVICES, OR
RATED FILTER FABRIC BAGS.
4.
PUMP STRAINER SHALL NOT BE IN CONTACT WITH BOTTOM OF EXCAVATED HOLE.
5.
THE DISCHARGE FROM ALL SILT BAGS MUST BE DIRECTED TO A NON -EROSIVE OUTLET OR ALLOWED TO
SHEET FLOW OVER A WELL VEGETATED AREA BEFORE ENTERING THE STREAM.
6.
SEE THE "DEWATERING DETAIL" ON DRAWING #10 FOR ADDITIONAL NOTES AND DETAILS.
LOW POINT
TEMPORARY DEWATERING DETAIL
1.5' min.
9" min
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Plan View
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4' to 6'
Cross -Section View
Figure 6.83b Stone check dam stone should be placed over the channel banks to keep water from cutting around the
dam.
Maintenance Inspect check dams and channels at least weekly and after each significant (1/2
inch or greater) rainfall event and repair immediately. Clean out sediment,
straw, limbs, or other debris that could clog the channel when needed.
Anticipate submergence and deposition above the check dam and erosion from
high flows around the edges of the dam. Correct all damage immediately. If
significant erosion occurs between dams, additional measures can be taken
such as, installing a protective riprap liner in that portion of the channel
(Practice 6.31, Riprap-line and Paved Channels).
Remove sediment accumulated behind the dams as needed to prevent damage
to channel vegetation, allow the channel to drain through the stone check dam,
and prevent large flows from carrying sediment over the dam. Add stones to
dams as needed to maintain design height and cross section.
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1.0 NARRATIVE
1.1 PROJECT DESCRIPTION
SHIELD ENGINEERING, INC. HAS PREPARED THIS EROSION AND SEDIMENT CONTROL (E&SC) PLAN UNDER CONTRACT TO THE
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY (NCDEQ) PRE -REGULATORY LANDFILL UNIT (UNIT). THIS PLAN
DETAILS EROSION AND SEDIMENT CONTROL MEASURES TO BE TAKEN DURING REMEDIATION CONSTRUCTION ACTIVITIES PLANNED
TO ADDRESS WASTE HISTORICALLY BURIED AT THE BOSTIC DUMP (SITE). THE REMEDIATION CONSTRUCTION ACTIVITIES WILL
INCLUDE THE CLEARING AND GRUBBING OF MUCH OF THE WORK AREA, STRIPPING AND STOCKPILING OF TOPSOIL (WHERE
AVAILABLE), THE EXCAVATION, REMOVAL, AND RELOCATION OFF -SITE OF WASTE MATERIAL WITHIN THE EXISTING LIMITS OF WASTE
BOUNDARY, AND THE PLACEMENT AND COMPACTION OF BOTH ON -SITE AND OFF -SITE FILL MATERIAL.
1.2 SITE DESCRIPTION
THE SITE IS LOCATED IN BOSTIC, NORTH CAROLINA ON THE SOUTH SIDE OF WEST CHURCH STREET (STREET ADDRESS #389),
APPROXIMATELY 1,000 FEET EAST OF WEST CHURCH STREET / BOSTIC ROAD INTERSECTION AS SHOWN ON THE COVER SHEET.
THE WASTE DISPOSAL AREA EXTENDS ACROSS A PORTION A SINGLE PARCEL AND ENCOMPASSES AN AREA OF APPROXIMATELY
0.44 ACRES. THE RUTHERFORD COUNTY PROPERTY IDENTIFICATION NUMBERS [PIN] FOR THE PARCEL IS #1633329 (1.64 TOTAL
DISTURBED ACRES). TO ACCESS THE ACTUAL EXCAVATION AREA, CONSTRUCTION VEHICLES AND EQUIPMENT WILL ENCROACH
THROUGH PARCEL #1633330 (0.28 ACRES). THE ENTIRE DISPOSAL AREA IS CURRENTLY COVERED WITH VEGETATION (MOSTLY
WOODED SCRUB GROWTH). THERE IS A NATURAL DRAINAGE FEATURE THAT RUNS IN A WESTERNLY DIRECTION FROM THE EAST
AND TYPICALLY FALLS IN THE CENTER OF THE WASTE AREA LIMITS. THE LOWER 62.8' OF THE DRAINAGE FEATURE HAS BEEN
CLASSIFIED "RELATIVELY PERMANENT WATERS" BASED ON A JURISDICTIONAL DETERMINATION REQUEST (JDR) THAT WAS
APPROVED BY THE US CORPS OF ENGINEERS ON FEBRUARY 10, 2020.
THE PROJECT SITE IS LOCATED WITHIN THE BROAD RIVER BASIN. IN GENERAL, STORMWATER FLOWS VIA SHEET FLOW AND THE
DRAINAGE FEATURE TOWARDS THE WESTERN EDGE OF THE PROJECT SITE BOUNDARY. AFTER IT LEAVES THE PROPERTY, THE
FLOW TAKES A TURN TOWARDS THE SOUTH AND FOLLOWS A NATURAL DRAINAGE FEATURE FOR APPROXIMATELY 2000 FEET UNTIL
IT EMPTIES INTO THE SECOND BROAD RIVER. THE RIVER IS CLASSIFIED AS WS-V MEANING IT IS PROTECTED AS BOTH A WATER
SUPPLY AND FOR RECREATIONAL USES.
1.3 ADJACENT PROPERTY
THE PROJECT SITE, WHICH IS CURRENTLY LOCATED WITHIN THE BOSTIC MUNICIPALITY, HAS A LAND CLASSIFICATION OF SINGLE
FAMILY RESIDENTIAL. ALL ADJACENT PROPERTIES HAVE THE SAME CLASSIFICATIONS. ACCESS TO THE PROPERTY IS DIRECTLY
OFF OF WEST CHURCH STREET WHICH ABUTS THE NOTHERN EDGE OF THE PARCEL.
1.4 SOIL INFORMATION
ACCORDING TO THE NATURAL RESOURCES CONSERVATION SERVICE'S SOIL SURVEY, THE PROJECT FALLS WITHIN A ZONE
CONSISTING OF 93.8% PACOLET SANDY CLAY LOAM (PAD2) AND UDORTHENTS, LOAMY (UDC). IN GENERAL, THE PACOLET SERIES
CONSITS OF VERY DEEP, WELL DRAINED, MODERATELY PERMEABLE SOILS THAT FORMED IN RESIDUUM WEATHERED MOSTLY
FROM FELSIC IGNEOUS AND METAMORPHIC ROCKS OF THE PIEDMONT UPLANDS. SLOPES ON THIS SITE ARE GENERALLY 8 TO 25
PERCENT.
1.5 SITE GEOLOGY
THE SITE IS IN THE INNER PIEDMONT BELT AND BEDROCK IS CLASSIFIED AS BIOTITE GNEISS (GEOLOGIC MAP OF NORTH CAROLINA,
1985). SITE SOILS LOCATED AT THE NORTHERN PORTION OF THE SITE HAVE BEEN CLASSIFIED AS PACOLET SANDY CLAY LOAM
WITH 8 TO 15 PERCENT SLOPES. THE SOILS LOCATED WITHIN THE REMAINDER OF THE SITE HAVE BEEN CLASSIFIED AS PACOLET
SANDY CLAY LOAM WITH 15 TO 25 PERCENT SLOPES. SOILS FROM BORINGS WITHIN AND AROUND THE WASTE DISPOSAL AREA
WERE GENERALLY CLASSIFIED AS RED TO DARK REDDISH BROWN SILTY SAND WITH SATURATED SOILS ENCOUNTERED FROM 6.5
TO 12.5 FEET BELOW SURFACE (FBS). BEDROCK WAS ENCOUNTERED FROM 7 TO 14 FBS (OBG, 2017).
1.6 PLANNED EROSION AND SEDIMENTATION CONTROL PRACTICES
BECAUSE OF THE COMPLEXITY OF THIS PROJECT, IT WILL BE DONE IN NUMEROUS PHASES AND THE EROSION CONTROL
MEASURES MAY HAVE TO BE ADJUSTED DURING EACH PHASE TO BETTER MEET PROPER EROSION ELIMINATION TACTICS BASED
ON FIELD CONDITIONS. PLAN VIEWS AND CONSTRUCTION DESCRIPTIONS OF EACH PHASE CAN BE FOUND ON DRAWINGS 6-8.
THE EROSION AND SEDIMENTATION CONTROL MEASURES PROVIDED HEREIN WERE DESIGNED AND SPECIFIED IN GENERAL
ACCORDANCE WITH THE EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL PUBLISHED BY NCDEQ.
1.6.1 LAND GRADING (6.02)
THIS PROJECT DEALS PRIMARILY WITH THE EXCAVATION OF BURIED WASTE MATERIAL, THE PLACEMENT AND COMPACTION OF
FILL SOILS, AND THE FINE GRADING AND SEEDING OF THE FINAL GRADE. GRADING WILL BE DONE IN PHASES TO HELP MINIMIZE
THE UNNECESSARY CLEARING AND GRUBBING OF AREAS THAT ARE NOT IMMEDIATELY PROPOSED FOR GRADING ACTIVITIES.
THIS WILL GREATLY REDUCE THE OVERLAND SEDIMENTATION OF DISTURBED SOILS DURING THE LENGTH OF THE PROJECT.
1.6.2 SEDIMENT FENCE (6.62)
SILT FENCE WILL BE INSTALLED AROUND THE PERIMETER OF THE PLANNED DISTURBED AREA TO LIMIT THE AMOUNT OF
POTENTIAL SEDIMENT LEAVING THE SITE. IT WILL ALSO BE PLACED AROUND ANY SOIL STOCKPILE AREA THAT WILL BE UTILIZED
STARTING WITH THE FIRST PHASE OF THE PROJECT. ANY REQUIRED REPAIRS DURING THE GRADING OPERATIONS WILL BE
MADE IMMEDIATELY. SEDIMENT DEPOSITS WILL BE REMOVED AFTER EACH STORM EVENT, AND WHEN DEPOSITS REACH
APPROXIMATELY ONE-HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT
FENCE IS NO LONGER REQUIRED WILL BE DRESSED TO CONFORM TO THE EXISTING GRADE, REPAIRED, AND SEEDED.
SEDIMENT FENCE WILL BE INSTALLED AS PER PLAN AND/OR AS NEEDED.
1.6.3 COIR SOCK / SEDIMENT WATTLE (6.66)
COIR SOCKS / SEDIMENT WATTLES MAY BE USED IN THE MAIN CHANNEL WHERE UNFORESEEN OR EXCESSIVE SEDIMENTATION
MAY TAKE PLACE. THE CONTRACTOR IS TO INSPECT THE WORK AREA(S) ON A DAILY BASIS AND "RETROFIT" ANY AREAS WHERE
SEDIMENTATION MAY BE TAKING PLACE WITH ADDITIONAL COIR SEDIMENT LOGS / WATTLES.
1.6.4 SURFACE STABILIZATION
SURFACE STABILIZATION WILL BE ACCOMPLISHED WITH MATTING, VEGETATION AND MULCH AS SPECIFIED IN THE VEGETATION
PLAN. VEGETATION WILL BE PLANTED IMMEDIATELY UPON THE COMPLETION OF FINAL GRADING. TEMPORARILY STABILIZE
DENUDED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN THE NUMBER OF CALENDAR
DAYS AS THEY ARE LISTED IN THE STABILIZATION CHART ON DRAWING #13.
1.6.5 CONSTRUCTION ENTRANCE (6.06)
WHERE CONSTRUCTION VEHICLE ACCESS ROUTE INTERSECTS W. CHURCH STREET, PROVISIONS SHALL BE MADE TO MINIMIZE
THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO PAVED SURFACES. WHERE SEDIMENT IS TRANSPORTED ONTO A
PAVED OR PUBLIC ROAD SURFACE, THE ROAD WILL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT WILL BE
REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA.
STREET WASHING WILL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THE MANNER DESCRIBED HEREIN. A TEMPORARY
CONSTRUCTION ENTRANCE WILL BE PROVIDED AT THE SITE PRIOR TO THE START OF CONSTRUCTION. AN OPEN GRADED
STONE BASE ENTRANCE WILL BE PROVIDED AT THE SITE TO HELP LIMIT THE SOIL TRACKED OFFSITE BY CONSTRUCTION
TRAFFIC. THE APPROXIMATE LOCATION OF THE CONSTRUCTION ENTRANCES AND CONSTRUCTION DETAILS ARE PROVIDED ON
DRAWING #6.
1.6.6 DUST CONTROL (6.84)
DUST CONTROL IS NOT EXPECTED TO BE A PROBLEM, DUE TO THE DISTANCE FROM THE SITE TO THE NEAREST AREA OF
CONCERN. SHOULD EXCESSIVE DUST BE GENERATED, SPRINKLING OF WATER ON THE PROBLEM AREAS WILL BE CONDUCTED
TO MINIMIZE THE PROBLEM.
1.6.7 TEMPORARY PERIMETER DIKE (6.22)
TEMPORARY PERIMETER DIKES (AND TEMPOARY CMP STORM PIPE) WILL BE UTILIZED DURING THE PROJECT TO HELP
KEEP "CLEAN" OFFSITE STORM RUNOFF AWAY FROM THE DISTURBED AREAS THROUGHOUT THE DURATION OF THIS
PROJECT. DUE TO THE FACT THAT A VAST MAJORITY OF THE WASTE MATERIAL FALLS WITHIN A DRAINAGE FEATURE, IT IS
CRITICAL TO DIVERT AS MUCH STORM RUNOFF BEING CONVEYED FROM ABOVE THE WORK AREA AROUND THE DISTURBED
AREAS TO HELP MINIMIZE SEDIMENTATION.
1.6.8 PHASING PORCEDURES
SINCE TEMPORARY SEDIMENT BASINS AND TRAPS ARE NOT ALLOWED IN A STREAM, THIS PROJECT WILL BE CONDUCTED IN
THREE PHASES. THOSE PHASES CAN BE SEEN ON DRAWING #6. EACH PHASE WILL CONSIST OF THE FOLLOWING PRACTICES:
1. CLEAR, GRUB, AND REMOVE MATERIAL FROM THE PROPOSED AREA TO BE GRADED.
2. EXCAVATE BURIED WASTE MATERIAL. THE PROPOSED EXCAVATED PIT AS SHOWN ON DRAWING #4 IS BASED ON
ENVIRONMENTAL TEST PITS AND GPR SURVEY. ACTUAL AMOUNT OF WASTE MATERIAL MAY VARY IN EACH PHASE.
3. AFTER ALL OF THE MATRIAL HAS BEEN REMOVED AND VERIFIED, BACKFILL, COMPACT, AND REGRADE AREA AS SHOWN ON
THE GRADING PLAN, DRAWING #5. SEE THE PROFILES FOR THE DIFFERENT DITCH SECTIONS ON DRAWING #8.
4. SEED ENTIRE FINAL GRADED AREAS AND MAT PER SPECIFICATIONS ON THIS DRAWING (SECTION 4.0).
IT IS ESSENTIAL THAT ENOUGH PLASTIC POLY SHEETING BE KEPT ONSITE TO BE ABLE TO COVER THE ENTIRE DISTRUBED AREA
WITHIN EACH OF THE THREE PHASES AT ANY ONE TIME. THE SHEETING MUST BE PLACED DURING ANY RAINSTORM OR BEFORE
ANY FORCASTED RAIN EVENT. MATERIALS TO HOLD THE SHEETING IN PLACE DURING HEAVY RAINS AND/OR WINDS MUST ALSO
BE UTILIZED WHEN COVERING DISTURBED AREAS. METHODS TO RESTRAIN THE SHEETING COULD INCLUDE USING HEAVY ITEMS
(TIRES, CONSTRUCTION CHAINS, LOGS, LARGE ROCKS, ETC.). GROUND COVER ANCHORING PINS COULD ALSO BE USED
(MINIMUM LENGTH OF 6-INCHES) IF THE SHEETING MATRIAL IS FOLDED OVER AT LEAST TWICE SO THAT THE PINS PUNCTURE
THROUGH AT LEAST THREE LAYERS OF THE SHEETING. BY COVERING THE OPEN AREAS DURING EACH PHASE, THIS WILL HELP
ELIMINATE SEDIMENTATION.
AFTER EACH RAIN EVENT, A PUMP AND "SEDIMENT DEWATERING SACK" MUST BE USED TO DRAIN ANY EXCESS WATER FROM
THE EXCAVATED SUMP AREA. SEE DETAIL ON DRAWING #9.
ALTHOUGH THIS PROJECT IS DESIGNED TO HAVE A BALANCED SOIL CUT AND FILL, ALL MATERIALS WILL BE TAKEN TO A
PERMITTED LANDFILL OR BROUGHT FROM A PERMITTED SITE.
2.0 MAINTENANCE PLAN
THE CONTRACTOR WILL BE RESPONSIBLE FOR MAINTENANCE OF THE EROSION CONTROL MEASURES DURING THE CONSTRUCTION
OF THE PROJECT. ONCE THE PROJECT HAS BEEN COMPLETED, THE OWNER OF THE FACILITY WILL BECOME RESPONSIBLE FOR
MAINTAINING THE PERMANENT MEASURES. TYPICAL MAINTENANCE ISSUES INCLUDE THE FOLLOWING:
1. ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CHECKED FOR STABILITY AND OPERATION AFTER ANY
RAINFALL EVENT OF 0.5" OR GREATER OR AT LEAST ONCE EVERY SEVEN DAYS PER THE NPDES PERMIT. ANY NEEDED
REPAIRS WILL BE MADE IMMEDIATELY TO MAINTAIN ALL PRACTICES AS DESIGNED.
2. SEDIMENT WILL BE REMOVED FROM BEHIND THE SEDIMENT FENCE WHEN IT BECOMES APPROXIMATELY 0.5 FEET IN DEPTH
OR GREATER AT THE FENCE. THE SEDIMENT FENCE WILL BE REPAIRED AS NECESSARY TO MAINTAIN A BARRIER.
3. ALL SEEDED AREAS WILL BE FERTILIZED, RESEEDED AS NECESSARY, AND MULCHED ACCORDING TO SPECIFICATIONS IN
THE VEGETATIVE PLAN TO MAINTAIN A VIGOROUS, DENSE VEGETATIVE COVER.
3.0
SPECIFICATIONS
3.1
LAND GRADING
1.
LAND GRADING SHALL BE KEPT TO A MINIMUM AT ALL TIMES.
2.
FINAL GRADING SHOULD BE SLOPED SO THAT STORM RUNOFF SHEET FLOWS AS SHOWN ON THE DRAWINGS.
3.
WHEN THE AREA HAS BEEN PROPERLY STABILIZED AND APPROVED BY THE EROSION & SEDIMENT CONTROL INSPECTOR,
ALL OF THE TEMPORARY SEDIMENT AND EROSION CONTROL MEASURES WILL BE REMOVED AND THE DISTURBED AREA
GRADED TO BLEND WITH THE SURROUNDING AREA AND VEGETATED.
3.2
SEDIMENT FENCE AND EROSION CONTROL WATTLES
1.
CONSTRUCT THE SEDIMENT FENCE OR EROSION CONTROL WATTLES AT THE LOCATIONS SHOWN ON THE DRAWINGS.
2.
LOCATE POSTS DOWN SLOPE OF FABRIC TO HOLD FENCING.
3.
BURY TOE OF FENCE APPROXIMATELY 8" DEEP TO PREVENT UNDERCUTTING.
4.
WHEN JOINTS ARE NECESSARY, SECURELY FASTEN THE FABRIC AT A SUPPORT POST WITH OVERLAP TO THE NEXT POST.
5.
FILTER FABRIC IS TO BE OF NYLON, POLYESTER, PROPYLENE, OR ETHYLENE YARN WITH AN EXTRA STRENGTH 50
LB/LINEAR INCH (MINIMUM), AND WITH A FLOW RATE OF AT LEAST 0.3 GAL./FT2/MINUTE. FABRIC SHOULD CONTAIN
ULTRAVIOLET INHIBITORS AND STABILIZERS.
6.
POST TO BE STEEL WITH A MINIMUM LENGTH OF 4 FEET.
7.
THE DISTANCE BETWEEN THE POSTS, CENTER TO CENTER, SHALL NOT EXCEED 8'
8.
DETAILS FOR BOTH THE SEDIMENT FENCE AND WATTLES CAN BE FOUND ON THE DRAWINGS.
3.3
TEMPORARY CONSTRUCTION ENTRANCE
1.
TEMPORARY GRAVEL CONSTRUCTION ENTRANCES SHALL BE CONSTRUCTED AS NEEDED/REQUIRED THROUGHOUT THE
DURATION OF THE PROJECT. A CONSTRUCTION ENTRANCE, AS DETAILED ON DRAWING #9, SHALL BE UTILIZED TO HELP
ELIMINATE SEDIMENT ON CONSTRUCTION VEHICLES FROM LEAVING THE SITE.
2.
USE CRUSHED STONE 2" - 3" IN SIZE.
3.
THE GRAVEL CONSTRUCTION ENTRANCE AND ACCESS WAYS SHALL BE MAINTAINED IN A CONDITION TO PREVENT MUD OR
SEDIMENT FROM LEAVING THE SITE. SHOULD MUD BE TRACKED OR WASHED ONTO PUBLIC ROADS, IT MUST BE REMOVED
IMMEDIATELY.
4.0 VEGETATIVE PLAN
SEEDBED PREPARATION
1. REMOVE ROCKS AND DEBRIS THAT COULD INTERFERE WITH TILLAGE AND THE PRODUCTION OF A UNIFORM SEEDBED.
2. APPLY LIME AND FERTILIZER AT RATES RECOMMENDED; SPREAD EVENLY AND INCORPORATE INTO THE TOP 6".
3. BREAK UP LARGE CLODS AND RAKE INTO A LOOSE, UNIFORM SEEDBED.
4. RAKE TO LOOSEN SURFACE JUST PRIOR TO APPLYING SEED.
SEEDING METHODS
1. BROADCAST SEED AT THE RECOMMENDED RATE WITH A CYCLONE SEEDER, DROP SPREADER, OR CULTIPACKER SEEDER.
2. RAKE SEED INTO THE SOIL AND LIGHTLY PACK TO ESTABLISH GOOD CONTACT.
MULCH
APPLY GRAIN STRAW AND TACK AS RECOMMENDED.
MAINTENANCE
RESEED, FERTILIZE AND MULCH AS NECESSARY.
PLAN VIEW
DIRECTION OF
SURFACE FLOW
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100,
MAX. °
,{o{
°
II. SIZING REQUIREMENTS: J15, J25
UP -GRADIENT SILT
FENCE AND J-HOOK
ARE ONE CONTINUOUS LINE
15'R
4 ')°
10' 7°�°%
°
START DOWN -GRADIENT
SILT FENCE LINE AS
CLOSE AS POSSIBLE TO
NOTE: SPACING DISTANCES THE UP -GRADIENT J-HOOK
WILL VARY, BUT ARE NOT 315 - FOR CATCHMENT
TO EXCEED 100 FEET. AREA <0.25 ACRES
DIRECTION OF
>30 DEGREES SURFACE FLOW
g80 �
g78 °
CONTOURS °\
SILT FENCE J-HOOK
CONSTRUCTION SEQUENCE
325 - FOR CATCHMENT
AREA >0.25 ACRES
NOTE:
]-HOOKS SHALL BE USED WHEN
THE SILT FENCE IS INSTALLED AT
AN ANGLE OF 30 DEGREES OR
GREATER FROM PARALLEL TO THE
CONTOURS.
4. AFTER STEPS #1 AND #2 HAVE BEEN ACCOMPLISHED, BEGIN ESTABLISHING EROSION CONTROL MEASURES AS SHOWN ON DRAWING #6 IN THE
FOLLOWING ORDER:
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4.1. CONSTRUCTION ENTRANCE 0
4.2. ESTABLISH CLEARING LIMITS f.>y
4.3. SILT FENCE W/ SILT FENCE OUTLET .
4.4. ESTABLISH LAYDOWN AREA USING GRAVEL OR GROUND PROTECTIVE MATTING (AREA FOR NEW PIPE ALIGNMENT MAY BE LEFT BARE UNTIL STEP 5.3 W U
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4.5. PROVIDE SEDIMENT LOGS IN MAIN DITCH O o
5. AFTER STEP #3, CONTACT NC DEQ FOR AN ON -SITE INSPECTION. SHOW EVIDENCE OF ON -SITE POLY PLASTIC SHEETING TO PROVIDE COVER OF Ems,
DENUDED AREAS DURING RAIN EVENTS (SEE SECTION 1.6.8 "PHASING PROCEDURES" ON DRAWING #10).
6. AFTER NC DEQ APPROVAL, ESTABLISH THE REMAINDER OF THE EROSION CONTROL MEASURES:
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6.1. TEMPORARY PERIMETER DITCHES (INCLUDING RIP RAP OUTFALLS) A
6.2. INSTALL TEMPORARY STORM PIPE PER PROFILE ON DRAWING #7 (INCLUDING RIP RAP OUTFALL) V
6.3. INSTALL PERMANENT STORM PIPE 1-2 PER PROFILE ON DRAWING #7 (INCLUDING RIP RAP OUTFALL)
7. BEGIN REMEDIATION WORK IN PHASE I ONLY. TYPICAL PROCEDURES FOR EACH OF THE PHASING AREAS ARE AS FOLLOWS (ALSO SEE SECTION 1.6.8 ON
DRAWING #10:
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7.4. AFTER WASTE MATERIAL HAS BEEN REMOVED, BACKFILL, COMPACT, AND REGRADE AREA AS SHOWN ON DRAWING #5. N a z
7.5. FINE GRADE, SEED, AND PLACE JUTE MATTING (DRAWING #8, "MATTING NOTES", MATTING #4). z w c
8. FINE GRADING SHOULD BE DONE PER PROPOSED GRADES SHOWN ON DRAWINGS #5 AND #6. PREPARATION FOR PERMANENT SEEDING SHOULD � �O Luo
FOLLOW SPECIFICATIONS SHOWN IN THE "VEGETATIVE PLAN 4.0" FOUND ON THIS PAGE. PERMANENT SEEDING SPECIFICATIONS ARE SHOWN ON Z O u °- z
DRAWING #8. FINALLY, SPECIFICATIONS FOR JUTE MATTING TO BE PLACED OVER ALL SEEDED AREAS CAN BE FOUND UNDER "MATTING NOTES" AS J w
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MATTING #4 ON DRAWING #8. AREAS ABOVE THE NEW PROPOSED GRADING TO BE USED AS TRAVEL WAYS DURING PHASE II AND PHASE III GRADING O V w Q
OPERATIONS CAN BE LEFT DENUDED BUT MUST BE COVERED WITH POLY/PLASTIC COATING BEFORE ALL RAIN EVENTS. N w
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9. A PUMP IS TO BE KEPT ON -SITE AT ALL TIMES IN CASE OF RAIN EVENTS (SEE DEWATERING DETAIL, DRAWING #9 AND DETAIL BELOW). PUMP SHOULD BE > N w J
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10.ONLY AFTER ALL OF THE STEPS IN ITEM #7 ABOVE HAVE BEEN COMPLETED AND THE AREA STABILIZED MAY THE WORK ON PHASE II AND SUBSEQUENTLY o 0 0
PHASE III BEGIN. IT IS IMPERATIVE THAT THE FINE GRADING, SEEDING, AND PLACEMENT OF JUTE MATTING (STEP 7.5) HAVE BEEN EFFECTIVELY w w w
COMPLETED TO ENSURE THAT FUTURE RAIN EVENTS WILL NOT CAUSE EROSION IN THOSE COMPLETED AREAS. AFTER EACH RAIN
EVEN, ALL "COMPLETED" AREAS SHOULD BE INSPECTED TO ENSURE THAT THE JUTE MATTING IS STILL FIRMLY IN PLACE. ANY SIGNS OF EROSION OR o 0 0
MISPLACED MATTING SHOULD BE CORRECTED IMMEDIATELY. DURING WORK ON THE SUCCEEDING PHASE, ANY "OVERLAP" DAMAGE TO THE PREVIOUS w N CV CV
PHASE NEEDS TO BE CORRECTED IMMEDIATELY. Q
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11.IT IS TO BE NOTED THAT PORTIONS OF THE EXCAVATION AREA WHERE WASTE IS BELIEVED TO BE BURIED FALL BELOW THE WATER
TABLE (PARTICULARLY PHASE III). BECAUSE ALL EXCAVATION IS TO BE "DONE IN THE DRY" TO THE BEST EXTENT PRACTICAL, A DEWATERING
PROCEDURE WILL NEED TO BE IMPLEMENTED FOR THESE AREAS. IT IS SUGGESTED THAT A PERFORATED PVC PIPE LARGE ENOUGH IN DIAMETER TO cv M
ACCOMMODATE A PUMP BE PLACED IN THE LOWEST AREA POSSIBLE. THIS WILL ALLOW FOR THE PUMP TO PROVIDE CONTINUOUS LOWERING OF THE
WATER TABLE WHILE EXCAVATION ACTIVITIES ARE TAKING PLACE. SEE DETAIL AND NOTES BELOW FOR FURTHER DETAILS.
12. DURING THE BACKFILLING OPERATIONS IN PHASE III, CARE SHOULD BE TAKEN TO MAKE SURE THAT THE DITCH IS BUILT TO THE PROPER ELEVATIONS SO `����i���j���//s�� 4•
THAT THE NATURAL SPRING OUTLET IN THE DITCH AS SHOWN ON THE DRAWINGS IS AT ELEVATION 850.00 SO THAT THE NATURAL SPRING RETAINS ITS
NATURAL STATE AFTER THE PROJECT. SITE GRADING AS IT NEARS THE PROPERTY LINE (STATION 0+00) SHOULD BE FIELD ALTERED TO ASSURE THAT
THE PROPOSED GRADING TRANSITIONS PROPERLY AND TIES INTO THE EXISTING GRADES EAST OF THE PROPERTY. ��: '�u► ; W
13.AFTER ALL THREE PHASES HAVE BEEN COMPLETED, INCLUDING THE DIFFERENT DITCH SECTIONS AND MATTINGS, FINE GRADING, SEEDING, AND JUTE a G " �•aa`
0.
MATTING, AND THE ENTIRE SITE HAS BEEN FULLY STABILIZED, CALL NC DEQ FOR THEIR ACCEPTANCE OF THE SITE'S STABILIZATION. THE STREAM
BELOW STATION 0+60 SHOULD TRY TO BE RESTORED TO ITS ORIGINAL CONDITION AS BEST AS POSSIBLE. ONLY AFTER NC DEQ APPROVAL, REMOVE
TEMPORARY STORM PIPE. REGRADE EXCAVATED TRENCH AFTER PIPE REMOVAL TO MATCH AND TIE INTO SURROUNDING EXISTING GRADES. TIE IN RIP
RAP DITCH BELOW NEW PIPE OUTFALL #1 TO NEW RIP RAP DITCH AT EASTERN EDGE OF PHASE I. AFTER ALL OF THE TEMPORARY MEASURES ARE z
REMOVED AND THE SITE IS STABILIZED, CALL NC DEQ FOR A CLOSE OUT INSPECTION OF THE SITE. w
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14.REMOVE ALL OF THE GRAVEL OR TEMPORARY GROUND PROTECTION MATS. VERIFY WITH SHIELD ENGINEERING THE LIMITS OF GRAVEL AND/OR - C)
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CONSTRUCTION ENTRANCE IS TO REMAIN ON SITE PER LANDOWNER'S REQUEST. o
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15. AFTER FINAL APPROVAL FROM NC DEQ, REMOVE REST OF EROSION CONTROL MATERIAL (SILT FENCE, TEMPORARY DIVERSION DIKES, TEMPORARY RIP a a
1. ONCE A CONTRACTOR IS CHOSEN, A REPRESENTATIVE FROM THAT FIRM MUST COMPLETE, SIGN, AND NOTARIZE THEMSELVES AS THE RESPONSIBLE
PARTY ON THE FINANCIAL RESPOSIBILITY AND OWNERSHIP FORM. NO WORK WILL BE PERFORMED UNTIL THE FORM HAS BEEN APPROVED AND FILED
WITH THE NC DEQ AND AN NOI (NOTICE OF INTENT) HAS BEEN OBTAINED ONLINE.
2. SETUP A PRE -CONSTRUCTION MEETING WITH REPRESENTATIVES FROM THE FOLLOWING FIRMS/AGENCIES BEING INVITED: 1) NC DEQ EROSION
CONTROL INSPECTOR; 2) NC DEQ WASTE MANAGEMENT GROUP; 3) SHIELD ENGINEERING; 4) REMEDY CONTRACTOR.
3. HAVE A PRIVATE UTILITY LOCATOR SCAN THE AREA OF EXCAVATION FOR THE NEW PERMANENT STORM PIPE FOR ANY BURIED UTILITIES.
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EXISTING OUTLET HOSE TO BE
GROUND PLACED INTO PILE OFpP
PROPOSED
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6„ ����� OPTIONAL 12"
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(SEE NOTE #3)
NOTES:
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1. PROFILE CROSS-SECTION SHOWN TAKEN AT LOCATION OF NATURAL SPRING (STATION 0+60 "DITCH FINAL GRADING PROFILE", DRAWING #8) .
2. THE DE -WATERING CASING MIGHT HAVE TO BE MOVED TO DIFFERENT AREAS BASED ON ACTUAL LOCATIONS AND DEPTHS OF BURIED WASTE MATERIAL.
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3. 4" PERFORATIONS IN THE PIPE SHOULD BE DRILLED FOUR HORIZONTAL HOLES AT EVERY ONE VERTICAL FOOT. TOTAL QUANTITY OF HOLES = 32.
0
4. BOTTOM OF PIPE NEEDS TO BE CAPPED. IF LEFT UNCAPPED, PIPE SHALL SIT ON 12" BED OF GRAVEL.
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5. BASED ON ACTUAL DEPTH OF BURIED WASTE, DEWATERING SUMP PIPE SHOULD BE PLACED AT MINIMAL DEPTHS AND FARTHEST FROM THE PROPERTY
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LINE AS POSSIBLE.
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6. SAND BAGS OR OTHER ENGINEER -APPROVED IMPERVIOUS MATERIAL SHOULD BE PLACED AT THE LOW AREA OF EXCAVATION (ALONG THE PHASE LINE OR
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PROPERTY LINE - SEE DRAWING #6) TO IMPEDE WATER FLOW DOWNSTREAM THROUGH THE EXISTING CREEK DURING DE -WATERING OPERATIONS TO
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ELIMINATE POSSIBILITY OF SEDIMENT LEAVING THE PROJECT AREA.
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7. DEWATERING OUTLET HOSE SHOULD BE LOCATED AT ONE OF THE TWO AREAS SHOWN ON DRAWING #6. IF FLOW OF WATER IS MURKY OR SHOWING
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SIGNS OF SEDIMENTATION, A SILT SACK PLACED ON RIP RAP SHOULD BE USED. ALL DEWATERING OUTLETS MUST BE DIRECTED TO A NON -EROSIVE
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OUTLET.
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8. CARE SHOULD BE TAKEN TO ENSURE THAT DISCHARGED WATER FROM THE DEWATERING HOSE DOES NOT FLOW BACK INTO WORK AREA.
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9. DURING NON -WORKING PERIODS, ANY ACCUMULATED SEDIMENT AT THE SAND BAGS MUST BE REMOVED AND DISPOSED OF IN THE STOCKPILE AREA OR
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10.IT IS IMPERATIVE THAT PLASTIC OR POLY SHEETING BE AVAILABLE ON -SITE FOR RAIN EVENTS. AT ANY SIGN OF RAIN OR FORECASTED RAIN, AREAS OF
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DISTURBANCE SHOULD BE COVERED AT ONCE AND THE DEWATERING OPERATIONS HALTED. SAND BAGS (SEE NOTE #6) SHOULD BE REMOVED WHEN ALL
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AREAS ARE COVERED AND DISTURBED AREAS ARE NOT SUSCEPTIBLE TO EROSION.
DEWATERING DETAIL FOR PUMPING IN WET SOILS
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GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
THE NCGOl CONSTRUCTION GENERAL PERMIT
Implementing the details and specifications on this plan sheet will result in the construction
activity being considered compliant with the Ground Stabilization and Materials Handling
sections of the NCGO1 Construction General Permit (Sections E and F, respectively). The
permittee shall comply with the Erosion and Sediment Control plan approved by the
delegated authority having jurisdiction. All details and specifications shown on this sheet
may not apply depending on site conditions and the delegated authority having jurisdiction.
SECTION E: GROUND STABILIZATION
Required Ground Stabilization Timeframes
Stabilize within this
Site Area Description
many calendar
Timeframe variations
days after ceasing
land disturbance
(a) Perimeter dikes,
swales, ditches, and
7
None
perimeter slopes
(b) High Quality Water
7
None
(HQW) Zones
(c) Slopes steeper than
If slopes are 10' or less in length and are
3:1
7
not steeper than 2:1, 14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
-7 days for perimeter dikes, swales,
(d) Slopes 3:1 to 4:1
14
ditches, perimeter slopes and HQW
Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swales,
(e) Areas with slopes
ditches, perimeter slopes and HQW Zones
flatter than 4:1
14
-10 days for Falls Lake Watershed unless
there is zero slope
Note: After the permanent cessation of construction activities, any areas with temporary
ground stabilization shall be converted to permanent ground stabilization as soon as
practicable but in no case longer than 90 calendar days after the last land disturbing
activity. Temporary ground stabilization shall be maintained in a manner to render the
surface stable against accelerated erosion until permanent ground stabilization is achieved.
GROUND STABILIZATION SPECIFICATION
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
techniques in the table below:
Temporary Stabilization
Permanent Stabilization
• Temporary grass seed covered with straw or
• Permanent grass seed covered with straw or
other mulches and tackifiers
other mulches and tackifiers
• Hydroseeding
• Geotextile fabrics such as permanent soil
• Rolled erosion control products with or
reinforcement matting
without temporary grass seed
• Hydroseeding
• Appropriately applied straw or other mulch
• Shrubs or other permanent plantings covered
• Plastic sheeting
with mulch
• Uniform and evenly distributed ground cover
sufficient to restrain erosion
• Structural methods such as concrete, asphalt or
retaining walls
• Rolled erosion control products with grass seed
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1. Select flocculants that are appropriate for the soils being exposed during
construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved
PAMS/Flocculants and in accordance with the manufacturer's instructions.
4. Provide ponding area for containment of treated Stormwater before discharging
offsite.
5. Store flocculants in leak -proof containers that are kept under storm -resistant cover
or surrounded by secondary containment structures.
EQUIPMENT AND VEHICLE MAINTENANCE
1. Maintain vehicles and equipment to prevent discharge of fluids.
2. Provide drip pans under any stored equipment.
3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the
project.
4. Collect all spent fluids, store in separate containers and properly dispose as
hazardous waste (recycle when possible).
5. Remove leaking vehicles and construction equipment from service until the problem
has been corrected.
6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
to a recycling or disposal center that handles these materials.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. Never bury or burn waste. Place litter and debris in approved waste containers.
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash
receptacle) on site to contain construction and domestic wastes.
3. Locate waste containers at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff
from upland areas and does not drain directly to a storm drain, stream or wetland.
5. Cover waste containers at the end of each workday and before storm events or
provide secondary containment. Repair or replace damaged waste containers.
6. Anchor all lightweight items in waste containers during times of high winds.
7. Empty waste containers as needed to prevent overflow. Clean up immediately if
containers overflow.
8. Dispose waste off -site at an approved disposal facility.
9. On business days, clean up and dispose of waste in designated waste containers.
PAINT AND OTHER LIQUID WASTE
1. Do not dump paint and other liquid waste into storm drains, streams or wetlands.
2. Locate paint washouts at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
4. Containment must be labeled, sized and placed appropriately for the needs of site.
5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
construction sites.
PORTABLE TOILETS
1. Install portable toilets on level ground, at least 50 feet away from storm drains,
streams or wetlands unless there is no alternative reasonably available. If 50 foot
offset is not attainable, provide relocation of portable toilet behind silt fence or place
on a gravel pad and surround with sand bags.
2. Provide staking or anchoring of portable toilets during periods of high winds or in high
foot traffic areas.
3. Monitor portable toilets for leaking and properly dispose of any leaked material.
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
with properly operating unit.
EARTHEN STOCKPILE MANAGEMENT
1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
and surface waters unless it can be shown no other alternatives are reasonably
available.
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of
five feet from the toe of stockpile.
3. Provide stable stone access point when feasible.
4. Stabilize stockpile within the timeframes provided on this sheet and in accordance
with the approved plan and any additional requirements. Soil stabilization is defined
as vegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
❑NSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
SANDBAGS (TYP.
OR STAPLES
10 MIL
14 TPLASTIC SANDBAGS (TYP.)
SILT FENCE
SIDE SLOP LINING �OR STAPLES
(TYP. JU[/
CLEARLY MARKED SIGNAGE
CONCRETE NOTING DEVICE (18'X24' MIN.)
WASHOUT
PLAN
NOTES,
1. ACTUAL LOCATION DETERMINED IN FIELD
2. THE CONCRETE WASHOUT STRUCTURES SHALL
BE MAINTAINED WHEN THE LIQUID AND/OR
SOLID REACHES 75% OF THE STRUCTURES
CAPACITY.
3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE
CLEARY MARKED WITH SIGNAGE NOTING DEVICE.
BELOW GRADE WASHOUT STRUCTURE
NOT TO SCALE
CONCRETE WASHOUTS
SANDBAGS (TYP.) NOTES'
OR STAPLES 1. ACTUAL LOCATION DETERMINED IN
FIELD
CLEARLY MARKED SIGNAGE
CONCRETE NOTING DEVICE (18'X24' MIN.) 2. THE CONCRETE WASHOUT
WASHOUT STRUCTURES SHALL BE MAINTAINED
WHEN THE LIQUID AND/OR SOLD
REACHES 75% OF THE STRUCTURES
CAPACITY TO PROVIDE ADEQUATE
HOLDING CAPACITY WITH A MINIMUM
PLAN 12 INCHES OF FREEBOARD.
3.CONCRETE WASHOUT STRUCTURE
NEEDS TO BE CLEARY MARKED WITH
SIGNAGE NOTING DEVICE,
ABOVE GRADE WASHOUT STRUCTURE
NOT TO SCALE
1. Do not discharge concrete or cement slurry from the site.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local
and state solid waste regulations and at an approved facility.
3. Manage washout from mortar mixers in accordance with the above item and in
addition place the mixer and associated materials on impervious barrier and within
lot perimeter silt fence.
4. Install temporary concrete washouts per local requirements, where applicable. If an
alternate method or product is to be used, contact your approval authority for
review and approval. If local standard details are not available, use one of the two
types of temporary concrete washouts provided on this detail.
5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
be pumped out and removed from project.
6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
install protection of storm drain inlet(s) closest to the washout which could receive
spills or overflow.
7. Locate washouts in an easily accessible area, on level ground and install a stone
entrance pad in front of the washout. Additional controls may be required by the
approving authority.
8. Install at least one sign directing concrete trucks to the washout within the project
limits. Post signage on the washout itself to identify this location.
9. Remove leavings from the washout when at approximately 75% capacity to limit
overflow events. Replace the tarp, sand bags or other temporary structural
components when no longer functional. When utilizing alternative or proprietary
products, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of
in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
caused by removal of washout.
HERBICIDES, PESTICIDES AND RODENTICIDES
1. Store and apply herbicides, pesticides and rodenticides in accordance with label
restrictions.
2. Store herbicides, pesticides and rodenticides in their original containers with the
label, which lists directions for use, ingredients and first aid steps in case of
accidental poisoning.
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is
possible or where they may spill or leak into wells, stormwater drains, ground water
or surface water. If a spill occurs, clean area immediately.
4. Do not stockpile these materials onsite.
HAZARDOUS AND TOXIC WASTE
1. Create designated hazardous waste collection areas on -site.
2. Place hazardous waste containers under cover or in secondary containment.
3. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
NCGO I GROUND STABILIZATION AND MATERIALS HANDLING
EFFECTIVE: 04/01/19
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PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF -INSPECTION
Self -inspections are required during normal business hours in accordance with the table
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be in jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
Frequency
Inspect
(during normal
Inspection records must include:
business hours)
(1) Rain gauge
Daily
Daily rainfall amounts.
maintained in
If no daily rain gauge observations are made during weekend or
good working
holiday periods, and no individual -day rainfall information is
order
available, record the cumulative rain measurement for those un-
attended days (and this will determine if a site inspection is
needed). Days on which no rainfall occurred shall be recorded as
"zero." The permittee may use another rain -monitoring device
approved by the Division.
(2) E&SC
At least once per
1. Identification of the measures inspected,
Measures
7 calendar days
2. Date and time of the inspection,
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Indication of whether the measures were operating
event > 1.0 inch in
properly,
24 hours
5. Description of maintenance needs for the measure,
6. Description, evidence, and date of corrective actions taken.
(3) Stormwater
At least once per
1. Identification of the discharge outfalls inspected,
discharge
7 calendar days
2. Date and time of the inspection,
outfalls (SDOs)
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Evidence of indicators of Stormwater pollution such as oil
event > 1.0 inch in
sheen, floating or suspended solids or discoloration,
24 hours
5. Indication of visible sediment leaving the site,
6. Description, evidence, and date of corrective actions taken.
(4) Perimeter of
At least once per
If visible sedimentation is found outside site limits, then a record
site
7 calendar days
of the following shall be made:
and within 24
1. Actions taken to clean up or stabilize the sediment that has left
hours of a rain
the site limits,
event > 1.0 inch in
2. Description, evidence, and date of corrective actions taken, and
24 hours
3. An explanation as to the actions taken to control future
releases.
(5) Streams or
At least once per
If the stream or wetland has increased visible sedimentation or a
wetlands onsite
7 calendar days
stream has visible increased turbidity from the construction
or offsite
and within 24
activity, then a record of the following shall be made:
(where
hours of a rain
1. Description, evidence and date of corrective actions taken, and
accessible)
event > 1.0 inch in
2. Records of the required reports to the appropriate Division
24 hours
Regional Office per Part III, Section C, Item (2)(a) of this permit.
(6) Ground
After each phase
1. The phase of grading (installation of perimeter E&SC
stabilization
of grading
measures, clearing and grubbing, installation of storm
measures
drainage facilities, completion of all land -disturbing
activity, construction or redevelopment, permanent
ground cover).
2. Documentation that the required ground stabilization
measures have been provided within the required
timeframe or an assurance that they will be provided as
soon as possible.
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION B: RECORDKEEPING
1. E&SC Plan Documentation
The approved E&SC plan as well as any approved deviation shall be kept on the site. The
approved E&SC plan must be kept up-to-date throughout the coverage under this permit.
The following items pertaining to the E&SC plan shall be kept on site and available for
inspection at all times during normal business hours.
Item to Document
Documentation Requirements
(a) Each E&SC measure has been installed
Initial and date each E&SC measure on a copy
and does not significantly deviate from the
of the approved E&SC plan or complete, date
locations, dimensions and relative elevations
and sign an inspection report that lists each
shown on the approved E&SC plan.
E&SC measure shown on the approved E&SC
plan. This documentation is required upon the
initial installation of the E&SC measures or if
the E&SC measures are modified after initial
installation.
(b) A phase of grading has been completed.
Initial and date a copy of the approved E&SC
plan or complete, date and sign an inspection
report to indicate completion of the
construction phase.
(c) Ground cover is located and installed
Initial and date a copy of the approved E&SC
in accordance with the approved E&SC
plan or complete, date and sign an inspection
plan.
report to indicate compliance with approved
ground cover specifications.
(d) The maintenance and repair
Complete, date and sign an inspection report.
requirements for all E&SC measures
have been performed.
(e) Corrective actions have been taken
Initial and date a copy of the approved E&SC
to E&SC measures.
plan or complete, date and sign an inspection
report to indicate the completion of the
corrective action.
2. Additional Documentation to be Kept on Site
In addition to the E&SC plan documents above, the following items shall be kept on the
site and available for inspectors at all times during normal business hours, unless the
Division provides a site -specific exemption based on unique site conditions that make
this requirement not practical:
(a) This General Permit as well as the Certificate of Coverage, after it is received.
(b) Records of inspections made during the previous twelve months. The permittee shall
record the required observations on the Inspection Record Form provided by the
Division or a similar inspection form that includes all the required elements. Use of
electronically -available records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard -copy records.
3. Documentation to be Retained for Three Years
All data used to complete the e-NOI and all inspection records shall be maintained for a period
of three years after project completion and made available upon request. [40 CFR 122.41]
PART II, SECTION G, ITEM (4)
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT
Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down
for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather).
Non -surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met:
(a) The E&SC plan authority has been provided with documentation of the non -surface withdrawal and the specific time periods or conditions in which it will occur. The non -surface withdrawal
shall not commence until the E&SC plan authority has approved these items,
(b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, Item (2)(c) and (d) of this permit,
(c) Dewatering discharges are treated with controls to minimize discharges of pollutants from stormwater that is removed from the sediment basin. Examples of appropriate controls include
properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems,
(d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in Item (c) above,
(e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the discharge points of all dewatering devices, and
(f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed of in a manner that does not cause deposition of sediment into waters of the United States.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1. Occurrences that Must be Reported
Permittees shall report the following occurrences:
(a) Visible sediment deposition in a stream or wetland.
(b) Oil spills if:
• They are 25 gallons or more,
• They are less than 25 gallons but cannot be cleaned up within 24 hours,
• They cause sheen on surface waters (regardless of volume), or
• They are within 100 feet of surface waters (regardless of volume).
(c) Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
(Ref: 40 CFR 302.4) or G.S. 143-215.85.
(d) Anticipated bypasses and unanticipated bypasses.
(e) Noncompliance with the conditions of this permit that may endanger health or the
environment.
2. Reporting Timeframes and Other Requirements
After a permittee becomes aware of an occurrence that must be reported, he shall contact
the appropriate Division regional office within the timeframes and in accordance with the
other requirements listed below. Occurrences outside normal business hours may also be
reported to the Department's Environmental Emergency Center personnel at (800)
858-0368.
Occurrence
Reporting Timeframes (After Discovery) and Other Requirements
(a) Visible sediment
•
Within 24 hours, an oral or electronic notification.
deposition in a
•
Within 7 calendar days, a report that contains a description of the
stream or wetland
sediment and actions taken to address the cause of the deposition.
Division staff may waive the requirement for a written report on a
case -by -case basis.
•
If the stream is named on the NC 303(d) list as impaired for sediment -
related causes, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions.
(b) Oil spills and
•
Within 24 hours, an oral or electronic notification. The notification
release of
shall include information about the date, time, nature, volume and
hazardous
location of the spill or release.
substances per Item
1(b)-(c) above
(c) Anticipated
•
A report at least ten days before the date of the bypass, if possible.
bypasses [40 CFR
The report shall include an evaluation of the anticipated quality and
122.41(m)(3)]
effect of the bypass.
(d) Unanticipated
•
Within 24 hours, an oral or electronic notification.
bypasses [40 CFR
e
Within 7 calendar days, a report that includes an evaluation of the
122.41(m)(3)]
quality and effect of the bypass.
(e) Noncompliance
•
Within 24 hours, an oral or electronic notification.
with the conditions
.
Within 7 calendar days, a report that contains a description of the
of this permit that
noncompliance, and its causes; the period of noncompliance,
may endanger
including exact dates and times, and if the noncompliance has not
health or the
been corrected, the anticipated time noncompliance is expected to
environment[40
continue; and steps taken or planned to reduce, eliminate, and
CFR 122.41(I)(7)]
prevent reoccurrence of the noncompliance. [40 CFR 122.41(I)(6).
•
Division staff may waive the requirement for a written report on a
case -by -case basis.
NCGO I SELF -INSPECTION, RECORDKEEPING AND REPORTING
EFFECTIVE: 04/01/19
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