NCC217031_Site Plan or Location Map_20220107

EROSION CONTROL SECTION E
PINS: 0675-14-1029, 0675-23-29397 0675-23-08807 0665-74-63127 0665-84-9465
TOWN OF FUQUAY-VARINA, WAKE COUNTY, NORTH CAROLINA
SITE DATA
PROJECT:
HIDDEN VALLEY
ENGINEER:
JIM CHANDLER, PE
TIMMONS GROUP
5410 TRINITY ROAD; SUITE 102
RALEIGH, NC 27607
PHONE: [phone]
FAX: [phone]
EMAIL: JIM.CHANDLER@TIMMONS,COM
DEVELOPER:
PULTE GROUP
RANDY KING, PE
1225 CRESCENT GREEN DRIVE, SUITE 250
CARY, NC 27518
PHONE: [phone]
RANDY. [e-mail]
PROPERTY LOCATION:
O
7 824 S NC 55 HWY
PINS:
0675-14-1029, 0675-23-2939, 0675-23-0880
0665-74-6312, 0665-84-9465
ZONING:
RLD
TOWNSHIP:
MIDDLE CREEK
PROPOSED USE:
RESIDENTIAL
TOTAL TRACT AREA:
214.69 ACRES (EXISTING)
213.98 ACRES (AFTER RIGHT-OF-WAY DEDICATION)
DISTURBED AREA:
TOTAL: 22.0 ACRES
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Sheet List Table
Sheet Number
Sheet Title
CE0.0
COVER SHEET
CE1.0
PRE -GRADING SEDIEMENTATION AND EROSION CONTROL PLAN
CE1.1
PRE -GRADING SEDIEMENTATION AND EROSION CONTROL PLAN
CE1.2
PRE -GRADING SEDIEMENTATION AND EROSION CONTROL PLAN
CE2.0
POST -GRADING SEDIEMENTATION AND EROSION CONTROL PLAN
CE2.1
POST -GRADING SEDIEMENTATION AND EROSION CONTROL PLAN
CE2.2
POST -GRADING SEDIEMENTATION AND EROSION CONTROL PLAN
CE3.0
MISC. EROSION CONTROL DETAILS
CE3.1
MISC. EROSION CONTROL DETAILS
CE3.2
MISC. EROSION CONTROL DETAILS
CE4.0
SEDIMENT BASIN DRAINAGE AREA MAP
REFER TO EROSION CONTROL SECTIONS A, B, C & D
DRAWINGS FOR PERMITTED EROSION CONTROL.
THESE IMPROVEMENTS SHALL BE CONSTRUCTED IN ACCORDANCE WITH
THE FOLLOWING PLANS, AND THE STANDARD SPECIFICATIONS OF THE
TOWN OF FUQUAY-VARINA. THE ENGINEER WHOSE SEAL AND SIGNATURE
APPEAR ON THE PLANS CERTIFIES THAT THE STANDARD SPECIFICATIONS
OF THE TOWN OF FUQUAY-VARINA HAVE BEEN THOUROUGHLY CHECKED
AND ARE APPLICABLE TO THIS PROJECT. ANY EXCEPTIONS TO THE
STANDARD SPECIFICATIONS APPLICABLE ARE SHOWN ON THIS SHEET.
FUQUAY VAP.INA
ENGINk.f RI G E T PROVAL
Signature Date
a C �(
EROSION AND SEDIMENT CONTROL
APPROVED PLAN
DATE:
PERMIT NO:
SIGNATURE
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GROUND STABILIZATION
SITE AREA
STABILIZATION
STABILIZATION TIME
DESCRIPTION
TIME FRAME
FRAME EXCEPTIONS
PERIMETER DIKES,
SWALES, DITCHES
7 DAYS
NONE
AND SLOPES
HIGH QUALITY
WATER (HQW) ZONE
7 DAYS
NONE
SLOPES STEEPER
IF SLOPES ARE 10' OR LESS IN
THAN 3:1
7 DAYS
LENGTH AND ARE NOT STEEPER
THAN 2:1 14 DAYS ARE ALLOWED
SLOPES 3:1
14 DAYS
7-DAYS FOR SLOPES GREATER
OR FLATTER
THAN 50 FEET IN LENGTH
ALL OTHER AREAS
NONE
WITH SLOPES
14 DAYS
(EXCEPT FOR PERIMETERS
FLATTER THAN 4:1
AND HQW ZONES)
* "EXCEPTIONS OF TIME MAY BE APPROVED BY THE PERMITTING AUTHORITY
BASED ON WEATHER OR OTHER SITE -SPECIFIC CONDITIONS THAT MAKE
COMPLIANCE IMPRACTICAL." - (SECTION II.13(2)(b))
NOTES:
1. AREAS WILL BE STABILIZED PER THE GROUND STABILIZATION CHART AFTER
ANY GRADING.
2. ALL BASINS SHOULD BE CLEANED AFTER ANY RAIN EVENT THAT EXCEEDS 1"
IN 24 HOURS.
3. SEDIMENT BASINS WILL BE INSTALLED WHERE STORM DRAINAGE PIPE IS
LOCATED. I.E. PIPES WILL BE LEFT SHORT AND EXTENDED THROUGH BASIN
AREAS AFTER SITE HAS BEEN STABILIZED.
SLOPE STABILIZATION REQUIREMENTS
3:1 AND FLATTER --GRASS
3:1 TO 2:1 SLOPE --ADAPTIVE PLANTS (SHRUBS AND VINES)
2:1 TO 1.5:1--RIP RAP
STEEPER THAN 1.5 TO 1-RETAINING WALL
NOTE 4:
MAXIMUM IMPERVIOUS AREA SQUARE FOOTAGE ON EACH INDIVIDUAL LOT WILL
BE STRINGENTLY ENFORCED WITH NO EXCEPTIONS INTO PERPETUITY.
(LOD) INDICATES THE LIMITS OF ULTIMATE DISTURBANCE FOR HIDDEN VALLEY.
SEDIMENT BASIN REMOVAL
1) REMOVE BASINS ONLY AFTER SITE IS STABILIZED AND WITH PERMISSION
FROM TOWN OF FUQUAY-VARINA ENGINEER.
2) REMOVE TARP AND ALL NON DIRT AND/OR ROCK MATERIAL.
3) USE BACKHOE TO FILL IN AND LEVEL BACK TO NATURAL GROUND
ELEVATION.
4) SEED AND STRAW APPROPRIATELY.
5) INSTALL CHANNELS AND EXTEND PIPE IF REQUIRED.
0 0 1
LEGEND
AREA ADDED
TO LIMITS OF
DISTURBANCE
STOCKPILE AREA NOTES: I
- MAXIMUM SIDE SLOPES: 2:1.
- MAXIMUM HEIGHT SHALL NOT EXCEED 35 FEET.
- ENSURE STOCKPILE AREAS ARE SUFFICIENTLY STABILIZED TO MINIMIZE SEDIMENT RUNOFF.
- STOCKPILE AREAS SHALL BE KEPT WITHIN PROPOSED LIMITS SHOWN ON PLANS
STOCKPILE MAINTENANCE:
- SEEDING OR COVERING OF PILES WITH TARPS OR MULCH IS REQUIRED AND WILL REDUCE EROSION PROBLEMS. TARPS SHOULD BE KEYED IN AT THE
TOP OF THE SLOPE TO KEEP WATER FROM RUNNING UNDERNEATH THE PLASTIC.
- IF A STOCKPILE IS TO REMAIN FOR FUTURE USE AFTER THE PROJECT IS COMPLETE (BUILDERS, ETC), THE FINANCIAL RESPONSIBLE PARTY MUST
NOTIFY FUQUAY-VARINA OF A NEW RESPONSIBLE PARTY FOR THAT STOCKPILE.
- THE APPROVED PLAN SHALL PROVIDE FOR THE USE OF STAGED SEEDING AND MULCHING ON A CONTINUAL BASIS WHILE THE STOCKPILE IS IN USE.
- ESTABLISH AND MAINTAIN A VEGETATIVE BUFFER AT THE TOE OF THE SLOPE (WHERE PRACTICAL).
TOWN OF FUQUAY VARINA CONSTRUCTION SEQUENCE
1. SCHEDULE A PRE -CONSTRUCTION CONFERENCE WITH THE TOWN OF FUQUAY-VARINA. OBTAIN A LAND -DISTURBING PERMIT.
2. INSTALL MEASURES AS SHOWN ON THE APPROVED PLAN. CLEAR ONLY AS NECESSARY TO INSTALL THESE DEVICES. SEED TEMPORARY
DIVERSIONS, BERMS AND BASINS IMMEDIATELY AFTER CONSTRUCTION.
3. CALL ENGINEERING CONSTRUCTION INSPECTOR FOR A COMPLIANCE INSPECTION.
4. MAINTAIN DEVICES AS NEEDED FOR ALL PHASES OF PROJECT. REMOVE EROSION CONTROL DEVICES WITH ENGINEERING CONSTRUCTION
INSPECTOR APPROVAL ONLY.
5. MAINTAIN RAIN GAUGE AND SELF -INSPECTION RECORDS PER NPDES REQUIREMENTS.
6. STABILIZE SITE AS AREAS ARE BROUGHT UP TO FINISH GRADE WITH VEGETATION, PAVING, DITCH LININGS, ETC. SEED AND MULCH DENUDED
AREAS PER GROUND STABILIZATION TIME FRAMES ON APPROVED PLAN.
7. WHEN CONSTRUCTION IS COMPLETED, AND ALL AREAS ARE STABILIZED, CALL ENGINEERING CONSTRUCTION INSPECTOR FOR INSPECTION.
8. IF SITE IS APPROVED, REMOVE TEMPORARY DIVERSIONS, SILT FENCE, SEDIMENT BASINS, ETC., AND SEED OUT OR STABILIZE ANY RESULTING
BARE AREAS. ALL REMAINING PERMANENT EROSION CONTROL DEVICES, SUCH AS VELOCITY DISSIPATORS, SHOULD NOW BE INSTALLED.
9. WHEN VEGETATION HAS BECOME PERMANENTLY ESTABLISHED, CALL FOR A FINAL SITE INSPECTION BY THE ENGINEERING CONSTRUCTION
INSPECTOR.
* PLEASE ADD SITE SPECIFIC DETAILS EX: STORMWATER CONSTRUCTION AND CONVERSION, PHASED SEEDING, STREAM CROSSING
SEQUENCING, ETC.
STOCKPILE
SCALE 1 "=300'
0 360' 660'
''a
FUQUAY VARINA
ENGINEFiRING DEP PPROVI%AL
SignatureDace
TOTAL DISTURBED AREA = 22.0 ACRES
LEGEND
LOD
LIMITS OF DISTURBANCE
— x x
SILT FENCE
SF
TPF
TREE PROTECTION
FENCE
TPSF
TREE PROTECTION
SILT FENCE
DD 1-A DD 1-B
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DIVERSION DITCH
A
DITCH REINFORCEMENT
INLET PROTECTION
SEDIMENT BASIN
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POROUS BAFFLES
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GROUND STABILIZATION
SITE AREA
STABILIZATION
STABILIZATION TIME
DESCRIPTION
TIME FRAME
FRAME EXCEPTIONS
PERIMETER DIKES,
SWALES, DITCHES
7 DAYS
NONE
AND SLOPES
HIGH QUALITY
WATER (HQW) ZONE
7 DAYS
NONE
SLOPES STEEPER
IF SLOPES ARE 10' OR LESS IN
7 DAYS
LENGTH AND ARE NOT STEEPER
THAN 3:1
THAN 2:1 14 DAYS ARE ALLOWED
SLOPES 3:1
14 DAYS
7-DAYS FOR SLOPES GREATER
OR FLATTER
THAN 50 FEET IN LENGTH
ALL OTHER AREAS
NONE
WITH SLOPES
14 DAYS
(EXCEPT FOR PERIMETERS
FLATTER THAN 4:1
AND HQW ZONES)
* "EXCEPTIONS OF TIME MAY BE APPROVED BY THE PERMITTING AUTHORITY
BASED ON WEATHER OR OTHER SITE -SPECIFIC CONDITIONS THAT MAKE
COMPLIANCE IMPRACTICAL." - (SECTION 11.6(2)(b))
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11.
NOTES: /f/ r '�; � �� � 11
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1. AREAS WILL BE STABILIZED PER THE GROUND STABILIZATION CHART AFTER _ _ -�- -- w -� " , r � _ _ - ,mm- 1= ` \ `
"- __ ",. _
_ _ _
ANY GRADING. _ "" __-_ \ \
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2. ALL BASINS SHOULD BE CLEANED AFTER ANY RAIN EVENT THAT EXCEEDS 1" - '— ~= " \ ``?;fx'- ,, �-� � ' � �� ,, / / r _A- , \ \
IN 24 HOURS. - "I", \1 \1, \ - -
, _ - tt r r \
--
1v - t I i I. t
3. SEDIMENT BASINS WILL BE INSTALLED WHERE STORM DRAINAGE PIPE IS \ \ , _ (i f / - / r \ �a'' \\; / "
\\ , \ \ \ I 19 \ I _ �- .f r EXISTING TREE \ i � _", ,,`
LOCATED. I.E. PIPES WILL BE LEFT SHORT AND EXTENDED THROUGH BASIN - ; \ \ \ \\ l.; I / \ u" \ \ NOTE: WORK PERFORMED s ��g : rf1 gri w--. \`. -
AREAS AFTER SITE HAS BEEN STABILIZED. __ \\\ \\ \ ° \ I \ _ 'y '� p,n�. \, \ \1\,\,
' \e-a =µ \ \ \ '\'I,
\ \\ If / �� \ 1\ \ \ _ _ r PROTECTION OUTSIDE OF SECTION 'E' h «:r�\
\ \\ \ 20 , ' `\r_ 4 _ - LIMITS OF DISTURBANCE EXISTING
SLOPE STABILIZATION REQUIREMENTS \, \\\\\ \\\\;w< i t f \ \ { \ - , INLET PROTECTION DIVERSION DITCH \ ` ;
(LOD) IS UNDER AN ACTIVE
3:1 AND FLATTER --GRASS \ \\� \\ ` \ ;\\ t _ ' / 21 t \ "=r r. ; ; r " PERMIT STILL UNDER .- " -\ ,I \.'' \ `
3:1 TO 2:1 SLOPE --ADAPTIVE PLANTS (SHRUBS AND VINES} � ��11 \ \\ \, \\\ t r f '" CONSTRUCTION. a �_`', 'J
2:1 TO 1.5:1--RIP RAP �� �- \ \ \ \ \\\ I / r r \ \ CONCRETE {, f / " 0 � w ; 4 �.
/ .r v v I r y -L -. v';
STEEPER THAN 1.5 TO 1-RETAINING WALL ffi� vi\ \vyv t / `` WASHOUT STATION _r / "�...... v I'll�� `_° �A
✓ \\ t \� t \\ \ X ,.-• i 3+- a .�e� EJPS:r
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NOTE 4: f� /� 0 \ \ \ l r r �� ,__ \ i \ }t /" � f r A\"
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MAXIMUM IMPERVIOUS AREA SQUARE FOOTAGE ON EACH INDIVIDUAL LOT WILL I 1 tI I f/ /// // , 2 _ A. r r , I " " w - / / � I ' t
t\ f //�ll /f• /� © t i j ✓C t ,7 \ , / ,r 1__ 1 \\ \ " " \ iBE STRINGENTLY ENFORCED WITH NO EXCEPTIONS fNTO PERPETUITY. r'r // v __ � _ ,.' s f w ``�. \V1,1111
III 11 rI 7 " r I II \ \ --Y - / I i r ,! ✓ / l t`''
\ t i` f t s .� \ ✓ r �LOD INDICATES THE LIMITS OF ULTIMATE DISTURBANCE FOR HIDDEN VALLEY.- i 1 I I \ I. �I - ' e \ f - r _ z° "- ' \\ \'( ) \V\°�tV_ _,,r , Ii I Iv v 1 - t o r
'� ._,� 1. "'"..,^r-- 3 (f \�' t _ _ ",•.r € f"� d' .. f r „-. t
SEDIMENT BASIN REMOVAL\� r1 \ 10C' X 25' TEMPORARY ` ` 'i 1 �' 1
,® � ®�� , � 1/ / 1 �t = CONSTRUCTION `I t I,. �fl, r / / / ' - r ', - =,'t'} ; k � I\ � ;,
1) REMOVE BASINS ONLY AFTER SITE IS STABILIZED AND WITH PERMISSION � \<� \ r tt II \ ENTRANCE ' \f J / "- � � -- "� '„ :� t t t`I ` i `" i i
FROM TOWN OF FUQUAY-VARINA ENGINEER. r� -�� v �� 23 11 t t vy`vv E f __ _ "_,
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' < ) I IIII 1 - MAXIMUM SIDE SLOPES: 2:1.
1 - MAXIMUM HEIGHT SHALL NOT EXCEED 35 FEET.
{\ \ \\ ,, /� \\'\`\ t\\\_\ - ENSURE STOCKPILE AREAS ARE SUFFICIENTLY STABILIZED TO MINIMIZE SEDIMENT RUNOFF.
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,.�, 242 1 \ tt :\t il(t It, 1
I \ \ , \\ , . \\\; .;,s, t STOCKPILE MAINTENANCE:
I \ \ . '\ ` ' I - SEEDING OR COVERING OF PILES WITH TARPS OR MULCH IS REQUIRED AND WILL REDUCE EROSION PROBLEMS. TARPS SHOULD BE KEYED IN AT THE
\ I I IIII I € II ,II\ TOP OF THE SLOPE TO KEEP WATER FROM RUNNING UNDERNEATH THE PLASTIC.
/ _ t ' t !'�- -" ` i t ? in nll , - IF A STOCKPILE IS TO REMAIN FOR FUTURE USE AFTER THE PROJECT IS COMPLETE (BUILDERS, ETC), THE FINANCIAL RESPONSIBLE PARTY MUST
r - \ �I I iI t� NOTIFY FUQUAY-VARINA OF A NEW RESPONSIBLE PARTY FOR THAT STOCKPILE.
1.1 / r / iI III tl It, - THE APPROVED PLAN SHALL PROVIDE FOR THE USE OF STAGED SEEDING AND MULCHING ON A CONTINUAL BASIS WHILE THE STOCKPILE IS IN USE.
m 243 W t, I;tt i.t ` - ESTABLISH AND MAINTAIN A VEGETATIVE BUFFER AT THE TOE OF THE SLOPE (WHERE PRACTICAL).
\ - ~- I It \ I
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i\ `� / _ - _ tI f f < TOWN OF FUQUAY VARINA CONSTRUCTION SEQUENCE
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t _.- - -,_ ._, it I} I I t I I
I 1. SCHEDULE A PRE -CONSTRUCTION CONFERENCE WITH THE TOWN OF FUQUAY-VARINA. OBTAIN A LAND -DISTURBING PERMIT.
"I 11 < � 244 ' I3 II I I , I tC �I 2. INSTALL MEASURES AS SHOWN ON THE APPROVED PLAN. CLEAR ONLY AS NECESSARY TO INSTALL THESE DEVICES. SEED TEMPORARY
�' / . I I„ ' II t i I I DIVERSIONS, BERMS AND BASINS IMMEDIATELY AFTER CONSTRUCTION_
✓�kv
3. CALL ENGINEERING CONSTRUCTION INSPECTOR FOR A COMPLIANCE INSPECTION.
J� i�5 III , 4. MAINTAIN DEVICES AS NEEDED FOR ALL PHASES OF PROJECT. REMOVE EROSION CONTROL DEVICES WITH ENGINEERING CONSTRUCTION
r \ m " - . 'I I INSPECTOR APPROVAL ONLY.
t // I ` ~ \ \I III liv, 1,ii 5. MAINTAIN RAIN GAUGE AND SELF -INSPECTION RECORDS PER NPDES REQUIREMENTS.
I I £f 1 )III I `i; 6. STABILIZE SITE AS AREAS ARE BROUGHT UP TO FINISH GRADE WITH VEGETATION, PAVING, DITCH LININGS, ETC. SEED AND MULCH DENUDED
\\ 1/ 245 I I i, I n I, AREAS PER GROUND STABILIZATION TIME FRAMES ON APPROVED PLAN.
tI /I o lli 1 7. WHEN CONSTRUCTION IS COMPLETED, AND ALL AREAS ARE STABILIZED, CALL ENGINEERING CONSTRUCTION INSPECTOR FOR INSPECTION.
/ k - -- --- - I 11/p /I it 8. IF SITE IS APPROVED, REMOVE TEMPORARY DIVERSIONS, SILT FENCE, SEDIMENT BASINS, ETC., AND SEED OUT OR STABILIZE ANY RESULTING
1 I > f _' 1 r1 IIII I 1 I BARE AREAS. ALL REMAINING PERMANENT EROSION CONTROL DEVICES, SUCH AS VELOCITY DISSIPATORS, SHOULD NOW BE INSTALLED.
' I t I I I 119. WHEN VEGETATION HAS BECOME PERMANENTLY ESTABLISHED, CALL FOR A FINAL SITE INSPECTION BY THE ENGINEERING CONSTRUCTION
II / / I ,., ~ \ \It1 111I1t IIII I INSPECTOR.
I }
t /� 246 1 1 I'1,, ill 1
I �_ . /f I I I I i t:II I * PLEASE ADD SITE SPECIFIC DETAILS EX: STORMWATER CONSTRUCTION AND CONVERSION, PHASED SEEDING, STREAM CROSSING
/ 1 __ _ - /11 IIII IIII I SEQUENCING, ETC.
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STABILIZATION
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DESCRIPTION
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FRAME EXCEPTIONS
PERIMETER DIKES,
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7 DAYS
NONE
AND SLOPES
HIGH QUALITY
WATER (HQW) ZONE
7 DAYS
NONE
SLOPES STEEPER
IF SLOPES ARE 10' OR LESS IN
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7 DAYS
LENGTH AND ARE NOT STEEPER
THAN 2:1 14 DAYS ARE ALLOWED
SLOPES 3:1
14 DAYS
7-DAYS FOR SLOPES GREATER
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THAN 50 FEET IN LENGTH
ALL OTHER AREAS
NONE
WITH SLOPES
14 DAYS
(EXCEPT FOR PERIMETERS
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* "EXCEPTIONS OF TIME MAY BE APPROVED BY THE PERMITTING AUTHORITY
BASED ON WEATHER OR OTHER SITE -SPECIFIC CONDITIONS THAT MAKE
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LEGEND
LOD
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SF
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TREE PROTECTION
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OUTSIDE OF SECTION'E' / I _ - _ _ _ - , - _ - - - -- I . � \ , 0 \ \ \ r EXISTING SEDIMENT BASIN
LIMITS OF DISTURBANCE 1- © i J I �. _ -- -�- _ _ ..- � _1 j \ ° °° \ \ ,\\ ; \ \ \ // r€ / I `£ \ i / d. � � - -_.
' \1/ \ \ o ° \ / I � , " (NOT PART OF SECTION 'E' I \ ;
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t f / \ _ \ p / / LOD I 1 / ✓ / / '
/ �/l j ,�/ t i / / : , _ I \ \ 0 - / /' I 1 I /,� ° / / / / / 20 WEIR ELEV 350.00 � \ \ \ �_//1 ! Its / / v% v I �v g 1 1 I i i 1 j t I I r I,�/j / / I ` 1/ / ,- // / 11 / N "` \ \ i . # \ ! '� / 3�JJpOl I r I I tI / // / / / t \
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.,. , 18 RCP PIPE OUTLET / \i _/ \Ji `\ / 1• �° / / t 1 \ ~�' _ \ \ \
rs- f / / �,/ % ,,
FOR SCM #3, REFER TO / _\[i / / \\ 11 I / / / d -- \ f I \ \ s
I � ! - w / I 1 I / /` / / f/ / / / ,r \ / / / , / / I I / i ' I 1 � \ i I I \ \ \ , \ \ \ \ \, i "I
VELOCITY DISSIPATOR / / \ i ? i t �\Ii , - ; / / i t
- �� TABLE ON CE3.0 /i / / v I / /
\ \ , f \ " \ \ \ " -w`+ -\ ,\ / i { 1 f \ i / d r t / f / ; r \�
3 I v o / a SEDIMENT BASIN #1 / / ? I 0 I \ v t v v y v v
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0 "� v. I `" �� �� 36' WEIR ELEV 318.00 /// / v i v / v I i ; �I / DRAINAGE gg \ 1 I I I y v \ I i v v v v v a ' v �t ; 4
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GROUND STABILIZATION
SITE AREA
STABILIZATION
STABILIZATION TIME
DESCRIPTION
TIME FRAME
FRAME EXCEPTIONS
PERIMETER DIKES,
SWALES, DITCHES
7 DAYS
NONE
AND SLOPES
HIGH QUALITY
WATER (HQW) ZONE
7 DAYS
NONE
IF SLOPES ARE 10' OR LESS IN
SLOPES STEEPER
7 DAYS
LENGTH AND ARE NOT STEEPER
THAN 3:1
THAN 2:1 14 DAYS ARE ALLOWED
SLOPES 3:1
14 DAYS
7-DAYS FOR SLOPES GREATER
OR FLATTER
THAN 50 FEET IN LENGTH
ALL OTHER AREAS
NONE
WITH SLOPES
14 DAYS
(EXCEPT FOR PERIMETERS
FLATTER THAN 4:1
AND HQW ZONES)
* "EXCEPTIONS OF TIME MAY BE APPROVED BY THE PERMITTING AUTHORITY
BASED ON WEATHER OR OTHER SITE -SPECIFIC CONDITIONS THAT MAKE
COMPLIANCE IMPRACTICAL." - (SECTION 11.13(2)(b))
NOTES:
1. AREAS WILL BE STABILIZED PER THE GROUND STABILIZATION CHART AFTER
ANY GRADING.
2. ALL BASINS SHOULD BE CLEANED AFTER ANY RAIN EVENT THAT EXCEEDS 1"
IN 24 HOURS.
3. SEDIMENT BASINS WILL BE INSTALLED WHERE STORM DRAINAGE PIPE IS
LOCATED. I.E. PIPES WILL BE LEFT SHORT AND EXTENDED THROUGH BASIN
AREAS AFTER SITE HAS BEEN STABILIZED.
SLOPE STABILIZATION REQUIREMENTS
3:1 AND FLATTER --GRASS
3:1 TO 2:1 SLOPE --ADAPTIVE PLANTS (SHRUBS AND VINES)
2:1 TO 1.5:1--RIP RAP
STEEPER THAN 1.5 TO 1-RETAINING WALL
NOTE 4:
MAXIMUM IMPERVIOUS AREA SQUARE FOOTAGE ON EACH INDIVIDUAL LOT WILL
BE STRINGENTLY ENFORCED WITH NO EXCEPTIONS INTO PERPETUITY.
(LOD) INDICATES THE LIMITS OF ULTIMATE DISTURBANCE FOR HIDDEN VALLEY.
SEDIMENT BASIN REMOVAL
1) REMOVE BASINS ONLY AFTER SITE IS STABILIZED AND WITH PERMISSION
FROM TOWN OF FUQUAY-VARINA ENGINEER.
2) REMOVE TARP AND ALL NON DIRT AND/OR ROCK MATERIAL.
3) USE BACKHOE TO FILL IN AND LEVEL BACK TO NATURAL GROUND
ELEVATION.
4) SEED AND STRAW APPROPRIATELY.
5) INSTALL CHANNELS AND EXTEND PIPE IF REQUIRED.
STOCKPILE AREA NOTES:
- MAXIMUM SIDE SLOPES: 2:1.
LEGEND
AREA ADDED
TO LIMITS OF
DISTURBANCE
- MAXIMUM HEIGHT SHALL NOT EXCEED 35 FEET.
- ENSURE STOCKPILE AREAS ARE SUFFICIENTLY STABILIZED TO MINIMIZE SEDIMENT RUNOFF.
- STOCKPILE AREAS SHALL BE KEPT WITHIN PROPOSED LIMITS SHOWN ON PLANS
STOCKPILE MAINTENANCE:
- SEEDING OR COVERING OF PILES WITH TARPS OR MULCH IS REQUIRED AND WILL REDUCE EROSION PROBLEMS. TARPS SHOULD BE KEYED IN AT THE
TOP OF THE SLOPE TO KEEP WATER FROM RUNNING UNDERNEATH THE PLASTIC.
- IF A STOCKPILE IS TO REMAIN FOR FUTURE USE AFTER THE PROJECT IS COMPLETE (BUILDERS, ETC), THE FINANCIAL RESPONSIBLE PARTY MUST
NOTIFY FUQUAY-VARINA OF A NEW RESPONSIBLE PARTY FOR THAT STOCKPILE.
- THE APPROVED PLAN SHALL PROVIDE FOR THE USE OF STAGED SEEDING AND MULCHING ON A CONTINUAL BASIS WHILE THE STOCKPILE IS IN USE.
- ESTABLISH AND MAINTAIN A VEGETATIVE BUFFER AT THE TOE OF THE SLOPE (WHERE PRACTICAL).
TOWN OF FUQUAY VARINA CONSTRUCTION SEQUENCE
1. SCHEDULE A PRE -CONSTRUCTION CONFERENCE WITH THE TOWN OF FUQUAY-VARINA. OBTAIN A LAND -DISTURBING PERMIT.
2. INSTALL MEASURES AS SHOWN ON THE APPROVED PLAN. CLEAR ONLY AS NECESSARY TO INSTALL THESE DEVICES. SEED TEMPORARY
DIVERSIONS, BERMS AND BASINS IMMEDIATELY AFTER CONSTRUCTION.
3. CALL ENGINEERING CONSTRUCTION INSPECTOR FOR A COMPLIANCE INSPECTION.
4. MAINTAIN DEVICES AS NEEDED FOR ALL PHASES OF PROJECT. REMOVE EROSION CONTROL DEVICES WITH ENGINEERING CONSTRUCTION
INSPECTOR APPROVAL ONLY.
5. MAINTAIN RAIN GAUGE AND SELF -INSPECTION RECORDS PER NPDES REQUIREMENTS.
6. STABILIZE SITE AS AREAS ARE BROUGHT UP TO FINISH GRADE WITH VEGETATION, PAVING, DITCH LININGS, ETC. SEED AND MULCH DENUDED
AREAS PER GROUND STABILIZATION TIME FRAMES ON APPROVED PLAN.
7. WHEN CONSTRUCTION IS COMPLETED, AND ALL AREAS ARE STABILIZED, CALL ENGINEERING CONSTRUCTION INSPECTOR FOR INSPECTION.
8. IF SITE IS APPROVED, REMOVE TEMPORARY DIVERSIONS, SILT FENCE, SEDIMENT BASINS, ETC., AND SEED OUT OR STABILIZE ANY RESULTING
BARE AREAS. ALL REMAINING PERMANENT EROSION CONTROL DEVICES, SUCH AS VELOCITY DISSIPATORS, SHOULD NOW BE INSTALLED.
9. WHEN VEGETATION HAS BECOME PERMANENTLY ESTABLISHED, CALL FOR A FINAL SITE INSPECTION BY THE ENGINEERING CONSTRUCTION
INSPECTOR.
* PLEASE ADD SITE SPECIFIC DETAILS EX: STORMWATER CONSTRUCTION AND CONVERSION, PHASED SEEDING, STREAM CROSSING
SEQUENCING, ETC.
TOTAL DISTURBED AREA = 22.0 ACRES
LOD -
- X X
SF
TPF —
TPSF
LEGEND
LIMITS OF DISTURBANCE
SILT FENCE
TREE PROTECTION
FENCE
TREE PROTECTION
SILT FENCE
DIVERSION DITCH
DITCH REINFORCEMENT
INLET PROTECTION
SEDIMENT BASIN
POROUS BAFFLES
SILT FENCE OUTLET
SKIMMER
RIPRAP OR WATTLE
CHECK DAM
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GROUND STABILIZATION
SITE AREA
STABILIZATION
STABILIZATION TIME
DESCRIPTION
TIME FRAME
FRAME EXCEPTIONS
PERIMETER DIKES,
SWALES, DITCHES
7 DAYS
NONE
AND SLOPES
HIGH QUALITY
WATER (HQW) ZONE
7 DAYS
NONE
IF SLOPES ARE 10' OR LESS IN
SLOPES STEEPER
7 DAYS
LENGTH AND ARE NOT STEEPER
THAN 3:1
THAN 2:1 14 DAYS ARE ALLOWED
SLOPES 3:1
14 DAYS
7-DAYS FOR SLOPES GREATER
OR FLATTER
THAN 50 FEET IN LENGTH
ALL OTHER AREAS
NONE
WITH SLOPES
14 DAYS
(EXCEPT FOR PERIMETERS
FLATTER THAN 4:1
AND HQW ZONES)
* "EXCEPTIONS OF TIME MAY BE APPROVED BY THE PERMITTING AUTHORITY
BASED ON WEATHER OR OTHER SITE -SPECIFIC CONDITIONS THAT MAKE
COMPLIANCE IMPRACTICAL." - (SECTION II.13(2)(b))
t
Da::va.: c: 675Ri
r '
}
NOTES:
1. AREAS WILL BE STABILIZED PER THE GROUND STABILIZATION CHART AFTER
ANYGRADING. _ ._. --. _ ---._...` _ _ . --_- - _ _-- - --- _ _.� -'`_-.:....�-'-`-�.--�� "'' ;r,.,• '" `® :....,-" � \
2. ALL BASINS SHOULD BE CLEANED AFTER ANY RAIN EVENT THAT EXCEEDS 1" _ _IN 24 HOURS. �_ z �// r ~ t 11 t
3. SEDIMENT BASINS WILL BE INSTALLED WHERE STORM DRAINAGE PIPE IS - tt \ {} 1 f # t i 1 / r 't EXISTING TREE \ t
LOCATED. I.E. PIPES WILL BE LEFT SHORT AND EXTENDED THROUGH BASIN = `� tt� e� g��t { { t 1 ` \ 1t e 4 z t t r - NOTE: WORK PERFORMED <1*W,P 15D9 ,� . t 4 t
AREAS AFTER SITE HAS BEEN STABILIZED. t e !' t # PROTECTION u' g"'
tt I r . OUTSIDE OF SECTION Ezu 3V
1 t 1 } -- _ - f LIMITS OF DISTURBANCE `\ t
{ { f v 11 if r' i 1-11 E i t
°� �' �`� �`1 \ tt t t - ` r - tt } rINLET PROTECTION LOD IS UNDER AN ACTIVE t
SLOPE STABILIZATION REQUIREMENTS i � � � l�>lt } t i1 f \ t t r r r � t• 1g , r r . r r r f (LOD)
3:1 AND FLATTER --GRASS '�rtl ti> \� ��`�� { t t{ i t t - f t # - r r r PERMIT STILL UNDER
3:1 TO 2:1 SLOPE --ADAPTIVE PLANTS (SHRUBS AND VINES) r rr\\ ll t��\ { t! CONSTRUCTION.
18 CONCRETE
2:1 TO 1.5:1--RIP RAP Ol,r rill It
tt ' t
STEEPER THAN 1.5 TO 1-RETAINING WALL Jfis r�r� -�, ��� �tll�\t\ t - } ttt y WASHOUT STATION r
�--� f '`-^`w � t`t t y- '" /�- f "' \ .•- -- J r _ '- _
f t j •`.-~^"` 11`�'+y\ � \ � i \�\i\ 1 . -"' I 11 \� � � ' -- "'-- •~= ,.-- tt t %' -' s .- '' ,.- r ",-r .:.`"_ ! t t l
NOTE 4:
d t �JII �Itlt �''l / �'/�!! ',.. ''' g ll r,,, "C y t t °_ r f .,, •'' ' ! ,' ' t � 1 � � y �
MAXIMUM IMPERVIOUS AREA SQUARE FOOTAGE ON EACH INDIVIDUAL LOT WILL
1 I}} / % ,,, 1 j J ;:"...• z t\ %�` l 17 t r' { .4 r ,,, r 1 { �� t 1
BE STRINGENTLY ENFORCED WITH NO EXCEPTIONS INTO PERPETUITY. i}!t i jlJf1!
t t�I lit 11 % ✓`' / t 1 1 t t t t t ..- "" r' ' { } ! r r r ,... r ! r t {{ i \ }
(LOD)LOD INDICATES THE LIMITS OF ULTIMATE DISTURBANCE FOR HIDDEN VALLEY. }l 5}tdtttt - #t1 } �f {1
t } it 4 S q1 4 S,..^ ""'""rr,-� # 71 g \. • -., 1S i t i { F g } /
"' =~ ~- mil gi t _ 100' X 25' TEMPORARY g f
SEDIMENT BASIN REMOVAL r - r f r \ ' { b rt CONSTRUCTION } g s ! r - r r t i �t
.,-^.® r r.�,., f.,4f"�'' n f� ..- {T.� g g i } } g 3 f � .•...�.... r _ !
1) REMOVE BASINS ONLY AFTER SITE IS STABILIZED AND WITH PERMISSION �_ fr - $ + # \ { t ENTRANCE: i J
FROM TOWN OF FUQUAY-VARINA ENGINEER. '' " } \ {{ tit i } { { g#
2) REMOVE TARP AND ALL NON DIRT AND/OR ROCK MATERIAL. 'r r ' ' \ \ "` t 1 { }}
3) USE BACKHOE TO FILL IN AND LEVEL BACK TO NATURAL GROUND t rr;
rr% t r 8 ` --- \\� � I �` _- 1 1
ELEVATION. \ _ - 1 = t t
4) SEED AND STRAW APPROPRIATELY. �> _ _ } # }} I I 1 1 \ SILT FENCE l t { { 11 t
5 INSTALL CHANNELS AND EXTEND PIPE IF REQUIRED.k\k
1 1{{ t _.._
t
' = - - S sAN g I I ` 'It t
Lb
29 ' { 1 1 I 4' �_ } I 111 i ,' t { { tt I
1 I# } } - 1 J _ �~ I! 1 I 1 14 r_ - M ~, �� I r /f } t t /T MPORAR, t 1 {t tI1
1 qI I1 I i g t i g STOCKI'1J_E t { # ( t
AEA g iI 11
11 g 4 1 d g S ..- afit// t I Ctj g
1 I 1 i l g }� t" r, - -~ � 1 t { # f #
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t/ i��tt ,l'/s j / /o_-- _ z, / I 9 I pig g I I 13 g t r' J
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f
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{ /'4 'L $ S .„ a� ``d....``: �^�*.^-�`"�.. f/, f , t �~ `�,.._ �i �i v i c '� , { S I I I _ �e t _-.... I I
t' 1' •, I I� t
NOTE: WORK PERFORMED i \ \ \ ' j 1 }
l \\ \\ ,� \ ex N .. ! 1 "` } i I I I � 1 t
t td } I I OUTSIDE OF SECTION'E'
LIMITS OF DISTURBANCE 0 t \co
t_
{} { { (LOD) IS UNDER AN ACTIVE Io \ \ { t\\ \ r _ I !I# g # ;,�_- = = - _ - t t i
t} } _ 1 �� }a` ` 1 } -- — 3t �I g1if �- - t t t}
IV
IIt{ } r} ! 1 ! e PERMIT STILL UNDER \ ft t{ t }t ! } l IIIg 1 1 1 i t t J_ it I 1 I 116 1 t I(}} 1
-mot 11 It{; g f t t _ z \ \ \ \ \ CONSTRUCTION.
III
1 t 111 I 11
\(46,,,?` ` \ \ \ f/j/i11[ `- �_ t1g1 g_ __ } _
\ \�' \ \ \\ ff/' 'r \\ tt } 1 i 11 } } 11 �-- — -, 1 1g_` = = = #
SILT FENCE \ e - tl 1 f---_ __ %<_ i t 1 cy)
\ \ *� f>.�J 1 I1 / I I I g # 1 I 1 f
'.. \ '` \ `^ `- ! / �% 0 ' `" \ I i 1 #1 '� T�' 1 f 1i I } t o
1 # ► _ f \\` \ /t
INLET PROTECTION fJ74
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j { # # . t \..z 114 i g I\ I
\l/ \t t. , \ \ {I #lI,g I 0 ` 11#I1(' ' # X I ' 1 } i g 1 gOEM
f SILT FENCE \ i' L �y g Ott jg #11I 1 1 _ t. 1 I I 1
O 'It #i \ `�` �� I i ',s - `�} 1i i1 I� } l C�i7 1 t gE-_.___-� 4 � � E E
1 } t l l Illy OUTLET, TYP. , \1/ \ \ix t \ \\ \ \'` _ r{ { g I I # 1 l # I E i I / 1 - # 0 60 120
�.r,-' \ //��rr•
1 \�
111 ' 1 } _ J } } t • \ \ { } Wit( I 1 F'JQU!-�Y V!\R' ('�!!�
24ttt t} g 1I
z ' f l # } } _ - _ _ e t r t I1 I i STOCKPILE AREA NOTES:
tt €} ENGIN G PT AI�PC�VA! �f
�� 1 it �###� £' � # 1 / � \ / � 'ItliltlJ1 ii� I -MAXIMUM SIDE SLOPES: 2:1.
\ \ I ! � Jill I - MAXIMUM HEIGHT SHALL NOT EXCEED 35 FEET. azure
~
� s'g"
#11 i 1 / ttt�t�ttitl { - ENSURE STOCKPILE AREAS ARE SUFFICIENTLY STABILIZED TO MINIMIZE SEDIMENT RUNOFF.
Z i J 1 i #1f I 1 i 1 / f /' `ti ' '- ' t i ilttttttttl### { - STOCKPILE AREAS SHALL BE KEPT WITHIN PROPOSED LIMITS SHOWN ON PLANS
j(,
Pr [[{ -
zo ,- r °,; ;# � jlli �'�� � #I t � 1-- .e,. _ . _ .•. /' ' -'° ' ,I � ._ .._ / ` � , r °`'.-- ' f t 1 ttttttt ll1{ }}1{� } } - _.
STOCKPILE MAINTENANCE:
Q IPA
I / - t SEEDING OR COVERING OF PILES WITH TARPS OR MULCH IS REQUIRED AND WILL REDUCE EROSION PROBLEMS. TARPS SHOULD BE KEYED IN AT THE
ztC1 1 g/ \ _ CONCRETE - \ t ##I1 {{tl }I{ TOP OF THE SLOPE TO KEEP WATER FROM RUNNING UNDERNEATH THE PLASTIC.
WASHOUT STATION \ 1 r ' y ~ �u►g II } { LEGEND
t t� - IF A STOCKPILE IS TO REMAIN FOR FUTURE USE AFTER THE PROJECT IS COMPLETE (BUILDERS, ETC), THE FINANCIAL RESPONSIBLE PARTY MUST
r n f - - t{{ { {} NOTIFY FUQUAY-VARINA OF A NEW RESPONSIBLE PARTY FOR THAT STOCKPILE.
LLI
ttl1 sl I (A "_ — ~- r _ - ' °f ! ' }j {}}} ti}} {{ to - THE APPROVED PLAN SHALL PROVIDE FOR THE USE OF STAGED SEEDING AND MULCHING ON A CONTINUAL BASIS WHILE THE STOCKPILE IS IN USE. LOD LIMITS OF DISTURBANCE
y„,_ ... �, r _ \ {ESTABLISH AND MAINTAIN A VEGETATIVE BUFFER AT THE TOE OF THE SLOPE (WHERE PRACTICAL). X X
r - r \ {{ t { { {}
_ 1111lil }�}1 SF
� r r / SILT FENCE
r t } EXISTING TREE _ r _ t� TOWN OF FUQUAY VARINA CONSTRUCTION SEQUENCE TREE PROTECTION
r , 6 ' 11 l r r �� 3 \t _ _ - _ - - `tt 111 %1 I I I t TPF
r tt t 1 I FENCE
PROTECTION AND tt r 1 t } 1. SCHEDULE A PRE -CONSTRUCTION CONFERENCE WITH THE TOWN OF FUQUAY-VARINA. OBTAIN A LAND -DISTURBING PERMIT.
o / r SILT FENCE 1 1 } t 1 1}
- 11 } tl t{fit } e t } } } } 1 I } 1 1 } 2. INSTALL MEASURES AS SHOWN ON THE APPROVED PLAN. CLEAR ONLY AS NECESSARY TO INSTALL THESE DEVICES. SEED TEMPORARY TREE PROTECTION
w ,. '' t �' � ...• �~ ,a / � t 11 { # � 1 ) i 44 t {t I I { TPSF
r wu - tt # tilt it }}1}} {}1 DIVERSIONS, BERMS AND BASINS IMMEDIATELY AFTER CONSTRUCTION. SILT FENCE
3. CALL ENGINEERING CONSTRUCTION INSPECTOR FOR A COMPLIANCE INSPECTION. DD 1-A DD 1-B
=o /' 1 1 1� �ttl` �l l! f i 111 1 t ` t - - _ Illt gj ( 4. MAINTAIN DEVICES AS NEEDED FOR ALL PHASES OF PROJECT. REMOVE EROSION CONTROL DEVICES WITH ENGINEERING CONSTRUCTION — f�- ` ` — DIVERSION DITCH
41
77 INSPECTOR APPROVAL ONLY.
v, f J ��.`'-i .r-�'�- l t 2 , ' �t � I ii 1 �} t #t � �° fl lg { tits#ttf ### 5. MAINTAIN RAIN GAUGE AND SELF -INSPECTION RECORDS PER NPDES REQUIREMENTS. DITCH REINFORCEMENT
0 / r r �l r- t / r r \ ,� 1 t # ; t t I11/ flit t Ii 6. STABILIZE SITE AS AREAS ARE BROUGHT UP TO FINISH GRADE WITH VEGETATION, PAVING, DITCH LININGS, ETC. SEED AND MULCH DENUDED
r- ✓
w t r `'r t t \ / f t '`1fi 1 ~_� ` # 24 # 1 t 1 tl t t 11 I } 1 AREAS PER GROUND STABILIZATION TIME FRAMES ON APPROVED PLAN.
r
1 1r S # t 1 t t tl $t 1 7. WHEN CONSTRUCTION IS COMPLETED, AND ALL AREAS ARE STABILIZED, CALL ENGINEERING CONSTRUCTION INSPECTOR FOR INSPECTION. ® INLET PROTECTION
8. IF SITE IS APPROVED, REMOVE TEMPORARY DIVERSIONS, SILT FENCE, SEDIMENT BASINS, ETC., AND SEED OUT OR STABILIZE ANY RESULTING
I� 1�°-z 1!"�_�.�.' `-- 11t lt11 I1 1
4- r t t \ -- BARE AREAS. ALL REMAINING PERMANENT EROSION CONTROL DEVICES, SUCH AS VELOCITY DISSIPATORS, SHOULD NOW BE INSTALLED.
o t� �t } t \� '' '! \} > / �' I1 l # l 9. WHEN VEGETATION HAS BECOME PERMANENTLY ESTABLISHED, CALL FOR A FINAL SITE INSPECTION BY THE ENGINEERING CONSTRUCTION �� SEDIMENT BASIN
233 t r� 47 t t #
\� t # f i t t l# t# t i€ I INSPECTOR.
r,Z-' >,\ t j, t 1 t i l l (I t
t t` 3 t� -- 1} rr } ' / 24 i glk o 0 o POROUS BAFFLES
f �= 1 - '\`` PLEASE ADD SITE SPECIFIC DETAILS EX: STORMWATER CONSTRUCTION AND CONVERSION PHASED SEEDING
y ...• ,•- r � t � �� z it I - � } � °' / '' .M ,r -- ,-- } \ \ \ f ! f 1 '^' - " 1 I i E , STREAM CROSSING
SEQUENCING, ETC.
{ t�� } ,� 1 / -..• r — { ��� t 1ilI1##III SILT FENCE OUTLET
°,' { c\ 230 \ f° - #' ✓ r } t l 24 ! t \o g g i # g l I
II }1 11t{ l S - _ - _ J I I+Egt1 _ _ 4 i °ill SKIMMER
1 gIi 1 t \ - _ . 7' t ) I }1 l 1 �f 1- I } — _ - ;�I1 ( r'
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GROUND STABILIZATION
SITE AREA
STABILIZATION
STABILIZATION TIME
DESCRIPTION
TIME FRAME
FRAME EXCEPTIONS
PERIMETER DIKES,
SWALES, DITCHES
7 DAYS
NONE
AND SLOPES
HIGH QUALITY
WATER (HQW) ZONE
7 DAYS
NONE
SLOPES STEEPER
IF SLOPES ARE 10' OR LESS IN
THAN 3:1
7 DAYS
LENGTH AND ARE NOT STEEPER
THAN 2:1 14 DAYS ARE ALLOWED
SLOPES 3:1
14 DAYS
7-DAYS FOR SLOPES GREATER
OR FLATTER
THAN 50 FEET IN LENGTH
ALL OTHER AREAS
NONE
WITH SLOPES
14 DAYS
(EXCEPT FOR PERIMETERS
FLATTER THAN 4:1
AND HQW ZONES)
* "EXCEPTIONS OF TIME MAY BE APPROVED BY THE PERMITTING AUTHORITY
BASED ON WEATHER OR OTHER SITE -SPECIFIC CONDITIONS THAT MAKE
COMPLIANCE IMPRACTICAL." - (SECTION II.13(2)(b))
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LIMITS OF DISTURBANCE
— x x
SILT FENCE
SF
TREE PROTECTION
TPF
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TREE PROTECTION
TPSF
SILT FENCE
DD 1- _�- DD 1-13
DIVERSION DITCH
A
DITCH REINFORCEMENT
INLET PROTECTION
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SEDIMENT BASIN
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ENTRANCE F
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OUTSIDE OF SECTION'E' r t t' OUTLET, TYP. _ - _ _ _ _ { IIr
LIMITS OF DISTURBANCE -0 tt j � �'t I � - -� �� f _ - - _ - - - - a r �
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i t ' PRE -CONSTRUCTION � '� r � � 1 � > � 1 t t I t t I I � t � � � �
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i \CONDITIONS. R&ER r y r r l { t r t 1 I i j I 1 { I S t t e ! ! `! J 910 z O a c
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r 0. t \STAB)I IZATION TABLE t r �rf% J I i �1 L ! t ` 3
J / L %M^-. `.. y r7c'! `w`" `^ ".., ��^ `*xy�l � [ '4. � � / k t t i y t \. \ O � � LJ� O
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r - r / 3.0" SKIMMER WITH `= `` I 1 it P t r f t t I I 1 { t t i t t S ! r z ,, } Q L «,
z / r / 2.5 ORIFICE,
W Z
z ✓ ' / / r / ON PERMANENT rn
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Q r r r �� /� r r/ ,` r {� ! I I i t \ 1 l ! 1 1 > L.LJ H c rn
F- r/ r r / 18 OUTLET i I I t ! = �' �/ELOCITY s d f r f \ I { I 1 t i i } i t e LU >, c
w' ' r rr r/% ' r �/ /t° `sl/1 I( 1 ) ; - ! I / r o _ ( i 4 1 I 3 l 37 _ 1t 9 Q J Y 0 0
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o / / r ✓ / / VELOCITY I PAD WID'f 9' I { t t t t \ _ - Q a z0
/ r / ✓ r / DISSIPATOR t t I 1 t PAD DEPTHS 181' { ! ! - ~ - - W `o
/ r / r / r'r >,/ r' (SCM3) t I 1 t t 'f STONES SIZE= 6"t ! r 1 r - - _ \_ r I _ _ \. Q �% a. c
PAD LENGTH= 12 t / r — / t i i _ I t _ _ U Q
r t r \ ! ` \ > W z v
N r r r ✓ ✓ >/ r %. / r PAD WIDTH= 5' ' > r f t - li � t i t i � i { z I > \ � _ � _ _ � _ _ _ - - _ _ _
asrr✓/ / / /e/ °f PAD DEPTH=26" f / / > i -`> t t ° i i t I I __ - _- _ _ _--_� -___ _
STONE SIZE--13" ref t __ _ ----- r_____- - __-� - __ _ -
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C •- s `f '✓ r' t t t f ✓- ,+t t f I { t . I A V a '
o / r r 1 t % t r I r '' t J i t �. !.' 9 .� { t ' I z in
f 1 OUTLET, TYP. t
- ✓ > t i t 1 i 1 1 t LIMITS O DISTURBANCE 0 o
t r ENGINE RI G D T PROVAL 1-�i
t J J t I TREE PROTECTION r t z l f t �,� 7fi: �d.RARI";T �..� > o
r ' / l t !( t ! I 1 � f '`' i
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Date x o
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C011 ON, t" ncc r JR ZONE R-3i"
Fezgs TYAecn-m GfJLJV L
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SEDIMENT BASINS TRAPS Q10 =A*7.49*0.5 U;F + _ ..
/
N
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SB1 13.95 1395
TEMPORARY DIVERSION DITCHES
DD1A
DD 1-13
327,136 7.51
249,163 5.72
L_

L
N
0
d
i
50' MIN.
NOTES
BUT SUFFICIENT TO KEEP
1. PUT SILT FENCE OR TREE PROTECTION FENCE UP TO
SEDIMENT ON SITE
ENSURE CONSTRUCTION ENTRANCE IS USED.
2. IF CONSTRUCTION ON THE SITES ARE SUCH THAT THE MUD
IS NOT REMOVED BY THE VEHICLE TRAVELING OVER THE
'2' 3" STONE TO BE USED
25' OR WIDTH OF
STONE, THEN THE TIRES OF THE VEHICLES MUST BE WASHED
BEFORE ENTERING THE PUBLIC ROAD.
EXISTING
F ;(SURGE STONE OR RAILROAD
PROPOSED STREET,
ROADWAY
•BALLAST)
WHICHEVER IS
3. MAINTAIN GRAVEL PAD IN A CONDITION TO PREVENT MUD OR
GREATER.
SEDIMENT FROM LEAVING CONSTRUCTION SITE. ENTRANCE
WILL REQUIRE PERIODIC REMOVAL OF SEDIMENT -LADEN
STONE AND REPLACEMENT WITH FRESH STONE.
PLAN VIEW
35' MIN. 15' MIN NEW CONSTRUCTION
EXISTING ROADWAY
s 12" MIN.
6" MIN .�•�
FABRIC UNDER STONE
CROSS SECTION
CO STANDARD CONSTRUCTION ENTRANCE
EFFECTIVE: 01/31/08
NOTES:
1. TEMPORARY DIVERSION DITCH TO BE USED TO INTERCEPT FLOW AND/OR DIVERT TO A SEDIMENT CONTROL MEASURE OR BMP.
2. SILT SHALL BE REMOVED WHEN DITCH IS ONE-HALF FULL
3. DITCH SHALL BE RECONSTRUCTED WHEN DAMAGED BY EQUIPMENT OR COVERED BY FILL
4. STABILIZE DIVERSION DITCH BERM WITH TEMPORARY SEEDING, MULCH WITH TAC, AND/OR EROSION CONTROL NETTING,
COUNT
ORTHCAROLTN'
EFFECTIVE: 01/31/08
I I� WASTE MATERIAL -COMPACT,
SEED & MULCH AFTER
31 S� VAR. CONSTRUCTION OF DITCH
2}- 10
l(7�i
7 (f
1= ? VAR. .
illil lllilli[IiIIit O' - 2'��P
11, I l 111=�
2411
CROSS SECTIONAL VIEW
STANDARD TEMPORARY DIVERSION DITCH
�-�- 8'-0' MAXIMUM -►I
..."....
� �� tee! �L■
• vvrrrv.v-<
♦�►��n�♦ • • •
FRONT VIEW
NO
1. USE SILT FENCE ONLY WHEN DRAINAGE AREA
DOES NOT EXCEED 1/4 ACRE AND NEVER IN
AREAS OF CONCENTRATED FLOW.
2. REMOVE SEDIMENT DEPOSITED AS NEEDED TO
PROVIDE STORAGE VOLUME FOR THE NEXT RAIN
AND TO REMOVE PRESSURE ON THE SILT
FENCE. iv
^ GRADE
MINIMUM COVER
OVER SKIRT
ANCHOR SKIRT AS DIRECTED
BY ENGINEER
2'-0'
SIDE VIEW
STANDARD TEMPORARY SILT FENCE
STEEL POST
WOVEN WIRE FABRIC
SILT FENCE FABRIC
3'-0' 'T__7
---.FILL SLOPE
2' MIN.
1
MINIMUM 12-1/2 GAUGE
INTERMEDIATE WIRES
GRADE
3 TIMES I.D.
COUNT
:'ORTH CAROI.IN
EFFECTIVE: 01/3
NOTES"
1. L = THE LENGTH OF THE RIPRAP APRON.
2. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER BUT NOT
LESS THAN 6" (INCHES).
3. A FILTER BLANKET OR FILTER FABRIC SHOULD BE
INSTALLED BETWEEN THE RIPRAP AND SOIL FOUNDATION.
FABRIC
SECTIONAA-A'
STANDARD PIl'E OUTLET TO FLAT AREA
NO WELL-DEFINED CHANNEL
EXISTING SLOPES
TOP ELEVATION OF STORMWATER
--- _ #5 WASHED
EXISTING SLOPE
KEYED RIP RAP
#5 WASHED STONE
FRONT VIEW
NOTE: REMOVE SEDIMENT ACCUMULATION FROM BEHIND
CHECK DAMS TO PREVENT DAMAGE TO CHANNEL VEGETATION.
FLOW SHOULD BE MAINTAINED THROUGH THE DAM.
COU
OR-TH CAROLTN STANDARD CHECK DAM
EFFECTIVE( 01/31/08
T13P OF
MUST BE
ABOVE
THE VA:
STEEL FENCE PDSk
WIRE FENCE
HARDWARE HARDWARE CL
WAS ER OF>t3Z 1
NOSHED STDPE\ I
BURY WIRE FENCE AND HARDWARE CLOTH
7AK
EFFECTIVE: O1/31/08
STEEL FENCE PDS
SET MAX E!' AP
NDL 1w INTO
GROUND
FMTER FABRIC
GROIAiD
0.5'-l'
#1 RIP -RAP -
VARIES
SIDE VIEW
INSTRUCTION NOTES:
HEIGHT & WIDTH DETERMINED BY
EXISTING TOPOGRAPHY AND
SEDIMENT STORAGE REQUIRED.
KEY RIP RAP INTO THE DAM
FOR STABILIZATION.
EXIS7►NG GROUND
STEP SEQUENCE
NOTES:
1. REMOVE SEDIMENT WHEN HALF OF STONE OUTLET IS COVERED.
2. REPLACE STONE AS NEEDED TO ENSURE DEWATERING.
SECTION VIEW
BURY 6. OF UPPER EDGE DF
FILTER FABRIC IN TRENCH
STANDARD SILT FENCE OUTLET
COUNKT
ORTFI CAROLL"v.
EFFECTIVE: 01/3
I EXCELSIOR
CULVERT
3
NOTES
1. L = THE LENGTH OF THE RIPRAP APRON.
2. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER BUT NOT
LESS THAN 6" (INCHES).
3. IN A WELL-DEFINED CHANNEL EXTEND THE APRON UP THE
CHANNEL BANKS TO AN ELEVATION OF 6" (INCHES) 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 SOIL FOUNDATION.
SECTION 'A -A' FABRIC
STANDARD PIPE OUTLET TO WELL-DEFINED CHANNEL
WATTLE DETAIL
OF PAVEMENT
'SLUPE
ISOMETRIC VIEW
2'(MAX.) 2` UPSLOPE
�STAI(E NATURAL GROUND
"I ( • Y� I I
MATTING --� 2T� SLOPE
CROSS SECTION
VEE DITCH
2 IN. 2" UPSLOPE FLOW
STAKE -- NATURAi, GROUND
i
I �
MATTING ° 2' DOWNSLOPE
CROSS SECTION STAKE
TRAPEZOIDAL DITCH
BLOCK CATCH SAM
NOTES:
USE MINIMUM 12 IN. DIAMETER EXCELSIOR WATTLE.
USE 2 FT. WOODEN STAKES WITH A 2 IN. BY 2 IN. NOMINAL
GROSS SECTION.
ONLY INSTALL WATTLE(S) TO A HEIGHT IN DITCH SO FLOW WILL NOT
WASH AROUND WATTLE AND SCOUR DITCH SLOPES AND AS DIRECTED.
INSTALL A MINIMUM OF 2 UPSLOPE STAKES AND 4 DOMINSLOPE
STAKES AT AN ANGLE TO WEDGE WATTLE TO BOTTOM OF DITCH.
PROVIDE STAPLES MADE OF 0.125 IN. DIAMETER STEEL WIRE
FORMED INTO A U SHAPE NOT LESS THAN 12" IN LENGTH.
INSTALL STAPLES APPROXIMATELY EVERY i LINEAR FOOT ON
BOTH SIDES OF WATTLE AND AT EACH END TO SECURE IT TO THE SOIL.
INSTALL MATTING IN ACCORDANCE WITH SECTION 1631 OF THE
STANDARD SPECIFICATIONS.
l
INSET A INSET B
TOP VIEW
■ / / - /. T STORAGE ZONE
gD„pR STORAW ZONE •ALVAN® HARDWARE OATH
(TOTAL BASK CAPAOTV) rFLOW STORAGE ZONE 1/2' ■ 1rC am
.FIA�
lL i CUL%M PPE
STORMULE STaOR" FOEsomow-
�
Na 5 WASHED STONE FILTER 1'S
SLT FEMME BWF ES (M) CONaIEIE FOOTMO PAD
GALVANIZED HARDWARE QEAN OUT PONT M. 5 WASHED STONE FILTER LAD ABANST
CLOTH W/ 1/2• GRID (1/2 DEPIN 5ED•1ET1r WDRAIIE ZM xARAwARE amx (1:1 MAX" SLOPE)
PERSPECTIVE VIEW SECTION MEW
USE OF CATCH BASIN RISER/FILTER ON FILL SITES
A > M•TAu �p�aseaCa u•M tiw®wwam
a4�wwOMR�an
s. PNG.Em6aAT
W
D. 7. QA7GH BMN WLL EMMNMLY AGW11 � E s. s7AK= Au mum sm. awn mar F. in GNrt Ru a srAs� M76a • AP 71•WD
RML GRILL A" APML sB1ALis AT Tis PGML
11sAE 7'AE y PAIGar VATAiIMI, EiC.
ss/MS! PLTs. H7,• a00m . Rl mfllT
L RL ALL PUT sOs,T a.0
ii arts@ •N[ a M maf lION� P!
w>orALa 0
a
isT nL
,ar ML
,aT AL nw.
aIL
�
A
ata sA•N
COUNT,
(:'lF CAk(i1,:N
EFFECTIVE:Ol/31/08
STANDARD CATCH
BASIN RISEWFILTER
SEEDING SCHEDULE
(REVISED: 1-1-86)
SHOULDERS, SIDE DITCHES, SLOPES (MAX 3: 1)
DATE TYPE PLANTING RATE
AUG 15 - NOV 1 TALL FESCUE 300 LBS/ACRE
NOV 1 - MAR 1 TALL FESCUE 300 LBS/ACRE
& ABRUZZI RYE 25 LBS/ACRE
MAR 1 APR 15 TALL FESCUE 300 LBS/ACRE
APR 15 - JUN 30 HULLED COMMON BERMUDAGRASS 25 LBS/ACRE
JUL 1 - AUG 15 TALL FESCUE AND 120 LBS/ACRE
***BROWNTOP MILLET 35 LBS/ACRE
***OR SORGHUM-SUDAN HYBRIDS 30 LBS/ACRE
SLOPES (3:1 TO 2: 1)
MAR 1 - JUN 1 SERICEA LESPEDEZA (SCARIFIED) 50 LBS/ACRE
&
(MAR 1 - APR 15) ADD TALL FESCUE 120 LBS/ACRE
(MAR 1 - JUN 30) OR ADD WEEPING LOVEGRASS 10 LBS/ACRE
(MAR 1 - JUN 30) OR ADD HULLED COMMON BERMUDAGRASS 25 LBS/ACRE
JUN 1 - SEP 1 ***TALL FESCUE AND 120 LBS/ACRE
***BROWNTOP MILLET 35 LBS/ACRE
***OR SORGHUM-SUDAN HYBRIDS 30 LBS/ACRE
SEP 1 - MAR 1 SERICEA LESPEDEZA (UNHULLED-UNSCARIFIED) 70 LBS/ACRE
AND TALL FESCUE 120 LBS/ACRE
(NOV 1 - MAR 1) ADD ABRUZZI RYE 25 LBS/ACRE
CONSULT CONSERVATION ENGINEER OR SOIL CONSERVATION SERVICE
FOR ADDITIONAL INFORMATION CONCERNING OTHER ALTERNATIVES
FOR VEGETATION OF DENUDED AREAS. THE ABOVE VEGETATION
RATES ARE THOSE WHICH DO WELL UNDER LOCAL CONDITIONS;
OTHER SEEDING RATE COMBINATIONS ARE POSSIBLE.
***TEMPORARY - RESEED ACCORDING TO OPTIMUM SEASON FOR
DESIRED PERMANENT VEGETATION. DO NOT ALLOW TEMPORARY
COVER TO GROW OVER 12" IN HEIGHT BEFORE MOWING, OTHERWISE
FESCUE MAYBE SHADED OUT.
SEEDBED PREPARATION
1.) CHISEL COMPACTED AREAS AND SPREAD TOPSOIL 3 INCHES
DEEP OVER ADVERSE SOIL CONDITIONS, IF AVAILABLE.
2.) RIP THE ENTIRE AREA TO 6 INCHES DEPTH.
3.) REMOVE ALL LOSE ROCK, ROOTS, AND OTHER OBSTRUCTIONS
LEAVING SURFACE REASONABLY SMOOTH AND UNIFORM.
SUPERPHOSPHATE
4.) APPLY AGRICULTURAL LIME, FERTILIZER, AND UNIFORMLY AND
MIX WITH SOIL (SEE BELOW*).
5.) CONTINUE TILLAGE UNTIL A WELL -PULVERIZED, FIRM INCHES
DEEP. REASONABLY UNIFORM SEEDBED IS PREPARED 4 TO 6
6.) SEED ON A FRESHLY PREPARED SEEDBED AND COVER AFTER
SEEDING. SEED LIGHTLY WITH SEEDING EQUIPMENT OR CULTIPACK
7.) MULCH IMMEDIATELY AFTER SEEDING AND ANCHOR MULCH.
8.) INSPECT ALL SEEDED AREAS AND MAKE NECESSARY REPAIRS
OR RESEEDINGS WITHIN THE PLANTING SEASON, IF POSSIBLE. IF
STAND SHOULD BE OVER 60% DAMAGED, REESTABLISH FOLLOWING
ORIGINAL LIME, FERTILIZER AND SEEDING RATES.
9.) CONSULT CONVERSATION INSPECTOR ON MAINTENANCE
TREATMENT AND FERTILIZATION AFTER PERMANENT COVER IS
ESTABLISHED.
* APPLY: AGRICULTURAL LIMESTONE - 2 TONS/ ACRES (3
TONS/ACRE IN CLAY SOILS)
FERTILIZER - 1,000 lbs. / ACRE-10-10-10
SUPERPHOSPHATE- 500 Ibs> / ACRE -20% ANALYSIS
MULCH -2 TONS / ACRE - SMALL GRAIN STRAW
ANOTHER - ASPHALT EMULSION ® 300 GALS./ ACRE
F-UQUAY-\/A- RINA
ENGIN RI G D P PPROVAL
Signature Date 11-2 - ZJ
VELOCITY
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0812112020
DRAWN BY
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PLAN VIEW
1' MIN FREEBE
BAFFLES (STD>
r NAI
TOP OF DAN
TARP PROTECTIQI
DW EDOWL �Y TARP
a NIN
VETR LENGTH
SECTION THRU WEIR
OF BERM
DISSIPATER
PAD
RIP RAP
INLET SHALL BE CMP OUTLET PIPE
PROTECTED (AS NEEDED) CROSS SECTION
FROM EROSION WITH
RIPRAP, TARP, MATTING
OR EQUIVALENT.
NOTES:
1) BASIN SHOULD BE CLEANED OUT WHEN CAPACITY REACHES AN ELEVATION REPRESENTING THAT THE BASIN IS HALF -FULL
2) THE TARP USED TO PROTECT THE WEIR SHALL BE THE WIDTH SPECIFIED. THE LENGTH OF THE TARP SHALL BE ACCORDING
TO AVAILABLE SUPPLY. IF MULTIPLE TABS ARE TO BE USED. THEN TARPS SHALL BE OVERLAPPED AT LEAST 12'. THE
UPSTREAM 12' TARP SHALL OVERLAP THE DOWNSTREAM TARP.. THE TARP SHALL BE 50 MIL. HEAVY DUTY SILVER TARPAULINS
OR EQUIVALENT FOR U.V. RESISTANCE.
3) PROVIDE A MINIMUM OF THREE POROUS BAFFLES TO EVENLY DISTRIBUTE FLOW ACROSS THE BASIN, REDUCING TURBULENCE
4) BAFFLE MATERIAL MUST BE SECURED AT THE BOTTOM AND SIDES USING STAPLES OR BY TRENCHING AS FOR A SILT FENCE
S)) MOST OF THE SEDIMENT WILL ACCUMULATE IN THE FIRST BAY, SO THIS SHOULD BE READILY AVAILABLE FOR MAINTENANCE
6) DURING THE CONSTRUCTION PHASE OF THE PROJECT, PERMANENT STORMWATER RISER SHALL ONLY DEWATER FROM THE TOP OF PIPE.
7) POND SHALL NOT BE CONVERTED FOR STORMINMER USE UNRL APPROVED BY ENVIRONMENTAL ENGINEER.
A
COUNTY
° ''"''°x°" `
STANDARD SKIMMER BASIN
EFFECTIVE: 01/31/08
DEWATERING CONCRETE BLOCK
------------
bo b o°
o°o •
CONSTRUCTION SPECIFICATIONS _ O
0
1. LAY ONE BLOCK ON EACH SIDE OF THE STRUCTURE p� o O
ON ITS SIDE IN THE BOTTOM ROW TO ALLOW POOL dY o�
DRAINAGE. THE FOUNDATION SHOULD BE EXCAVATED
AT LEAST 2 INCHES BELOW THE CREST OF THE STORM
DRAIN. PLACE THE BOTTOM ROW OF BLOCKS AGAINST —
THE EDGE OF THE STORM DRAIN FOR LATERAL SUPPORT
AND TO AVOID WASHOUTS WHEN OVERFLOW OCCURS. 0.0coo, O o.'Ob
IF NEEDED, GIVE LATERAL SUPPORT TO SUBSEQUENT
ROWS BY PLACING 2x4 WOOD STUDS THROUGH
BLOCK OPENINGS.
2. CAREFULLY FIT HARDWARE CLOTH OR COMPARABLE 2:1 SLOPE, GRAVEL FILTER
WIRE MESH WITH 112 INCH OPENINGS OVER ALL
BLOCK OPENINGS TO HOLD GRAVEL IN PLACE.
3. USE CLEAN GRAVEL, 3/4 TO 1/2 INCH IN
WIRE SCREEN
DIAMETER, PLACED 2 INCHES BELOW THE TOP
OF THE BLOCK ON A 2:1 SLOPE OR FLATTER AND TEMPORARY SEDIMENT
SMOOTH IT TO AN EVEN GRADE. DOT #57 WASHED POOL DEWATERING
STONE IS RECOMMENDED.
ill -
,p
MAINTENANCE: INSPECT INLET PROTECTION AND 1' MINIMUM 16"
o ' -
REMOVE SEDIMENT AFTER EACH 2' MAXIMUM ,,,��� ppppppo o -_ ■
k°O
RAIN EVENT. GRAVEL SHOULD BE .. , "'" 8 • � � ;
REPLACED AND REPAIRS MADE AS NEEDED.
SEDIMENT
77INA STANDARD BLOCK & GRAVEL DROP INLET PROTECTION
EFFECTIVE: 01/31/08
UPSTREAM END OF
STORM DRAIN
OVERFLOW
A
T 1/3 PIPE
DIAMETER
O
�' A °•
D:
�....
�''
A'
BURY BOTTOM
OF PLYWOOD
I
Mall
1
I
3/4" EXTERIOR
NOTE:
ALL PARTIALLY COMPLETED STORM DRAINS
PLYWOOD
SHALL BE PROTECTED AT THE END OF
EACH DAY IN ACCORDANCE WITH THESE
PLYWOOD INLET PROTECTION
DETAILS.
STEEL FENCE POST
(TYPICAL)
UPSTREAM END OF
OVERFLOW
STORM DRAIN
H
H
••
H
H
D
n
A
1/3 PIPE
II
H
It
n : o
DIAMETER
II II
ro°o II
D• .• A A. D:
WASHED STONE FILTER
`tA
ACROSS PIPE INLET
o D :
A
--------------
lLl
11
_
J t1
HARDWARE CLOTH
L1 U
U I STONE FILTER N LET PROTECTION
AK
COUNT
""77"""`"
STANDARD
PIPE INLET
PROTECTION (PLYWOOD & STONE)
_J
%T
OUTLET END- CONNECTION
TO OUTLET PIPE OR RISER
AK
COUNTY
NORTH CAROTIN
STANDARD SKIMMER DETAIL
EFFECTIVE: 01/31/08
STANDARD METAL POSTS 2'-0" IN GROUND
GALVANIZED HARDWARE WIRE
EXTENDS TO TOP OF BOX
h
-
$o
�440
° O
_
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QXZjt�•o00QP
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—
NOTE:
1. INSPECT INLET PROTECTION AND REMOVE SEDIMENT
AFTER EACH RAIN EVENT. GRAVEL SHOULD BE REPLACED
# 57 WASHED STONE PLACED TO A HEIGHT OF 12"-18" MINIMUM ABOVE TOP OF BOX
AND REPAIRS MADE AS NEEDED.
A
ROL),'
"O:`at"' CA
STANDARD GRAVEL
YARD INLET PROTECTION
EFFECTIVE: 01/31/08
PLAN VIEW
BAFFLES 1' MIL I
INFLOW
�TRUCTURE
SKIMMI
8' MIN /TOP OF BAN
TARP PROTECTION 4ml <4AMB`i Y TARP
EDGE " 12
WD2LEN10'
WEMIN
GT
SECTION THRU WEIR
OF BERM
INLET SHALL BE PROTECTED ANTS-FLOATATxw \
(AS NEEDED) FROM EROSION DEVICE
WITH RIPRAP, TARP, ANTI -SEEP COLLAR
MATTING OR EQUIVALENT. CROSS SECTION D SIPATER
CHIP OUTLET PIPEPAD
NOTES: RIP RAP
1) BASIN SHOULD BE CLEANED OUT WHEN CAPACITY REACHES AN ELEVATION REPRESENTING THAT THE BASIN IS HALF -FULL.
2) THE TARP USED TO PROTECT THE WEIR SHALL BE THE WIDTH SPECIFIED. THE LENGTH OF THE TARP SHALL BE ACCORDING
TO AVAILABLE SUPP
LY. IF MULTIPLE TARPS ARE
TO BE USED, THEN TARPS SHALL BE OVERLAPPED AT LEAST 12". THE
UPSTREAM 12" TARP SHALL OVERLAP THE DOWNSTREAM TARP. THE TARP SHALL BE 50 MIL. HEAVY DUTY SILVER TARPAULINS
OR EQUIVALENT FOR U.V. RESISTANCE.
3) PROVIDE A MINIMUM OF THREE POROUS BAFFLES TO EVENLY DISTRIBUTE FLOW ACROSS THE BASIN, REDUCING TURBULENCE.
4) BAFFLE MATERIAL MUST BE SECURED AT THE BOTTOM AND SIDES USING STAPLES OR BY TRENCHING AS FOR A SILT FENCE.
5) MOST OF THE SEDIMENT WILL ACCUMULATE IN THE FIRST BAY, SO THIS SHOULD BE READILY AVAILABLE FOR MAINTENANCE.
6 DURING THE CONSTRUCTION A TIO PHASE OF THE PROJECT, PERMANENT STORMWATER RISER SHALL ONLY DEWATER FROM THE TOP OF
PIPE.
A 7) POND SHALL NOT BE CONVERTED FOR STORMWATER USE UNTIL APPROVED BY ENVIRONMENTAL ENGINEER.
COUNT'
STANDARD SKIMMER ATTACHED TO PERMANENT RISER
EFFECTIVE: Oi/31/08
NOTES:
I. BAFFLE MATERIAL SHOULD BE SECURED AT THE BOTTOM AND SIDES
USING STAPLES OR BY TRENCHING AS FOR SILT FENCE.
2. MOST OF THE SEDIMENT WILL ACCUMULATE IN THE 1ST BAY,
WHICH SHOULD BE READILY ACCESSIBLE FOR MAINTENANCE.
3. PROVIDE 3 BAFFLES (USE TWO IF LESS THAN 20 FEET IN LENGTH). PROVIDE
5 BAFFLES FOR DRAINAGE AREAS GREATER THAN 10 ACRES.
4. BAFFLE SHALL BE 700 G/M2 COIR EROSION BLANKET.
5. TOPS OF BAFFLES SHOULD BE 2 INCHES LOWER THAN THE TOP OF THE BERMS
6. INSPECT BAFFLES FOR REPAIR ONCE A WEEK AND AFTER EACH RAINFALL
PLAN VIEW CROSS SECTION
SUPPORT ROPE SUPPORT POST
TO WIRE TO 24" INTRO BOTTOM
PREVENT SAGGING OR SIDE
I /\
FENCE AND FABRIC
BURIED IN TRENCH
!___•_STEEL POST
6"X6" TRENCH, I COIR MESH OR SIMILAR, STAPLED OR
BACKFILL ED AND 1 2' TRENCHED INTO BOTTOM OR SIDE
COMPACTED
SECTION VIEW AT OPENING
K
COA
"�z`"OIiN STANDARD BAFFLES DETAIL
EFFECTIVE: 01/31/08
PLACE GRAVEL BAGS SUCH THAT
NO GAPS ARE EVIDENT
CATCH BASIN POMENT AREA FOR
SEDIMENT SEPARATION
BACK OF CURB `
CUR8INLET� 1
PLAN VIEW
NOTES:
1. PLACE GRAVEL BAG BARRIER ON GENTLY SLOPING STREET, WHERE WATER CAN
POND AND ALLOW SEDIMENT TO SEPARATE FROM RUNNOFF.
2. USE SAND BAGS OF WOVEN GEOTEXTILE FABRIC (NOT BURLAP) AND FILL WITH INCH
(OR SMALLER) GRAVEL. BAGS MUST BE LAYERED SUCH THAT NO GAPS ARE EVIDENT.
3. INSPECT BARRIERS AND REMOVE SEDIMENT AFTER EACH STORM EVENT, SEDIMENT
AND GRAVEL MUST BE REMOVED FROM THE TRAVELED WAY IMMEDIATELY.
4. WHEN INSTALLING CURB INLET PROTECTION DEVICES, NEVER BLOCK THE CURB
INLET.
SECTION VIEW
COUNTY
STANDARD GRAVEL BAG CURB INLET PROTECTION
EFFECTIVE: 01/31/08
NORTH
AMERICAN
GREEN
EROSION CONTROL Products
Guaranteed SOLUTIONS
14649 HIGHWAY 41 NORTH
EVANSVILLE, IN 47725
800-772-2040
www.nogreen.com
NOTE: GRAVEL BAG SHOULD NOT
1-1
E HIGHER THAN TOP OF CURB
r Boa 1- cr
C-IIANRLL INSIALLA110N
STAKE TO
SUPPORT WI
N
4 - 12.5 CM)
1. PREPARE SOIL BEFORE INSTALLING ROLLED EROSION CONTROL STAW PRODUCTS (RECP's), INCLUDING ANY NECESSARY APPLICATION OF LIME, FERTILIZER, AND SEED.
NOTE: WHEN USING CELL-O-SEED DO NOT SEED PREPARED AREA. CELL-O-SEED MUST BE INSTALLED WITH PAPER SIDE DOWN.
2. BEGIN AT THE TOP OF THE CHANNEL BY ANCHORING THE RECP's IN A 6" (15 CM) DEEP X 6' (15 CM) WIDE TRENCH WITH APPROXIMATELY 12" 30 CM) OF RECP's
EXTENDED BEYOND THE UP -SLOPE PORTION OF THE TRENCH. ANCHOR THE RECP's WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30 CMS APART IN THE
BOTTOM OF THE TRENCH. BACKFILL AND COMAPCT THE TRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12" (30 CM) PORTION OF
RECP's BACK OVER SEED AND COMPACTED SOIL SECURE RECP's OVER COMPACTED SOIL WITH A ROW OF STAPLES/STAKES SPACED APPROXIMATELY 12" (30 CM)
ACROSS THE WIDTH OF THE RECP's.
3. ROLL CENTER RECP's IN DIRECTION OF WATER FLOW IN BOTTOM OF CHANNEL RECP's WILL UNROLL WITH APPROPRIATE SIDE AGAINST THE SOIL SURFACE. ALL
RECP's MUST BE SECURELY FASTENED TO SOIL SURFACE BY PLACING STAPLES/STAKES IN APPROPRIATE LOCATIONS AS SHOWN IN THE STAPLE PATTERN GUIDE,
WHEN USING THE DOT SYSTEM'", STAPLES/STAKES SHOULD BE PLACED THROUGH EACH OF THE COLORED DOTS CORRESPONDING TO THE APPROPRIATE STAPLE PATTERN.
4. PLACE CONSECUTIVE RECP's END OVER END (SHINGLE STYLE) WITH A 4" - 6" (10 CM -15 CM) OVERLAP. USE A DOUBLE ROW OF STAPLES STAGGERED 4" (10 CM)
APART AND 4" (10 CM) ON CENTER TO SECURE RECP's.
5. FULL LENGTH EDGE OF RECP's AT TOP OF SIDE SLOPES MUST BE ANCHORED WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30 CM) APART IN A 6" (15 CM)
DEEP X 6" (15 CM) WIDE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING.
6. ADJACENT RECP's MUST BE OVERLAPPED APPROXIMATELY 2" - 5" (5 CM -12.5 CM) (DEPENDING ON RECP's TYPE) AND STAPLED.
7. IN HIGH FLOW CHANNEL APPLICATIONS, A STAPLE CHECK SLOT IS RECOMMENDED AT 30 TO 40 FOOT (9 M - 12 M) INTERVALS. USE A DOUBLE ROW OF STAPLES
STAGGERED 4" (10 CM) APART AND 4" (10 CM) ON CENTER OVER ENTIRE WIDTH OF THE CHANNEL
6. THE TERMINAL END OF THE RECP's MUST BE ANCHORED WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12' (30 CM) APART IN A 6" (15 CM) DEEP X 6" (15 CM)
WIDE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING.
NOTE:
* IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE OR STAKE LENGTHS GREATER THAN 6" (15 CM) MAY BE NECESSARY TO PROPERLY ANCHOR THE RECP's.
NOTE:
A7 CRITICAL POINTS * HORIZONTAL STAPLE SPACING SHOULD BE ALTERED
�B A. OVERLAPS AND SEAMS IF NECESSARY TO ALLOW STAPLES TO SECURE THE
C CRITICAL POINTS ALONG THE CHANNEL SURFACE.
B. PROJECTED WATER LINE
C. CHANNEL BOTTOM/SIDE ** IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE
SLOPE VERTICES OR STAKE LENGTHS GREATER THAN 6" (15 cm) MAY
BE NECESSARY TO PROPERLY ANCHOR THE RECP's.
Z
FU0J/-nY-\/AR , NA
ENGIN ER G DE TAPPROVAL
Signature Dat(a_t 2
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0812112020
0
DRAWN BY
331
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I
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH I
Implementing the details and specifications on this plan sheet will result in the construction
li round Stabilization and Materials Handling
activity being considered compliant t with t the e G g
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.
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:
iza iorll
• Temporary grass seed covered with straw or
P rY g
• 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
I. 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. E r en overflow. Clean u immediately if
Empty waste containers as needed to prevent o p a y
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 laced appropriately for the needs of site.
p
5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
construction sites.
PORTABLE TOILETS
1. Install portable toilets on level round at least 50 feet away from storm drain
s,
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 r chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
ONSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
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CONCRETE WASHOUTS
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 drains stem r receiving waters. g s y o surfaceLiquid 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. Ad
ditional controls maybe 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 tar sand bags r or r
p p, g o 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 leaving
s 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.
1AZARDOUS AND TOXIC WASTE
1. Create designated hazardous waste collection areas on -site.
2. Place hazardous waste containers undercover or in secondary containment.
3. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
NCGOI GROUND STABILIZATION AND MATERIALS HANDLING
EFFECTIVE: 04/01/191
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 ofthe 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
S. Description of maintenance needs for the measure,
6. Description, evidence, and date of corrective actions taken.
(3) Stormwater
At least once per
1. Identification ofthe 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 tail
event> 1.0 inch in
sheen, floating or suspended solids or discoloration,
24 hours
S. 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
7calendar day s
of the following shall be made:
and within 24
1. Actions taken to cleanup 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 ofgrading (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
round 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
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 co of the approved E&SC
PY PP
toE&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
i l all required Division or a similar inspection form that includes c udes a the equl ed 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 a-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 dr
awn down
water from h surface for example, time with extended cold weather).
for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdrawate o the su ace shall be rare ( e p s e e )
Non surface withdrawals from sediment basins shall be allowed only when all of following critori 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,
- Section C Item 2 c an f ipermit, b The non surface withdrawal has been reported as an anticipated bypass in accordance with Part 111 S d d o this
() p p Yp
(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 reg
ional ional office within the timeframes and in accordance with the
g
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
P
• 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 3Q3{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-watersconditions.
{b) Dil 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
• 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 da s a re port that contains a descri tion of the
• Y. P P
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(1)(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.
NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING I EFFECTIVE: 04/01/19
FUIUA A/A- R.1IAA
ENGINEERING DE T APPROVAL
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DRAINAGE AREA SUMMARY
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