SW4230601_Plansheet - Other_20240209

FLOOD CERTIFICATION SEDIMENT SEDIMENT SEDIMENT
NOTE: THE CONTRACTOR SMALL OBTAIN A COPY OF THE NPDES The undersigned hereby certifies to the best of his knowledge and
STORM WATER PERMIT ISSUED WITH THE GRADING PERMIT belief the location of the subject property has been checked against BASIN 1 BASIN 2 TRAP 3
area HUD/FIA maps and information provided by the Department of
AND COMPLY WITH ALL CONDITIONS AND REQUIREMENTS C UNDISTURBED AREA 0.40 0.40 0.40
INCLUDING,..BUT NOT LIMITED TO, MAINTAINING.RAIN GAUGE Housing and urban Development and finds that:
The subject property is located in a SPECIAL FLOOD C DISTURBED AREA 0.50 0.50 0.50 SWALE I Q BOTTOM LT RT LINING SHEAR
AT THE SITE AT ALL TIMES, AND PROVISION OF INSPECTIONS BOX HAZARD AREA as determined by HUD/FIA flood map. I-10 5.8 in hr 5,8 in hr 5.8 in hr
TO HOUSE INSPECTIONS LOGS AND PLANS. INSPECTIONS REQUIRED N0. AREA 10 C 10 WIDTH SS SS SLOPE MATERIAL n DEPTH VEL STRESS WP ALi
BY THE NPDES PERMIT SHALL BE PROVIDED BY THE OWNER, HOWEVER, The subject property is not located in a SPECIAL FLOOD TOTAL AREA 6.3 AC. 1.7 ac 6.8 ac 1-2 0.38 6.9 0.8 2.1 1.0 3 : 1 3 : 1 t85% EXCEL R-1 0.066 0.55 1.45 0.63 4.5 1.5 c
HAZARD AREA as determined by HUD/FIA flood map.
THE CONTRACTOR SHALL PROVIDE FOR MAINTENANCE OF EROSION DISTURBED AREA 2.1 AC. 1.2 ac 2.2 ❑c 1-2 0.38 6.9 0.8 2.1 1.0 3 1 3 : 1 t85% TALL FESCUE 0.035 0.41 2.33 0.47 3.6 0.9
CONTROL DEVICES AS RECOMMENDED IN THE MAINTENANCE INSPECTION LOGS. The subject property is located in an area which has Q 10 Q=CIA 16.1 cf 46 f 170 f
not been mapped as to flood areas by HUD/FIA. s . cs . cs 1-3 3.11 6.9 0.6 12.9 1.0 3 1 3 1 1.85% EXCEL PP5-8 . 0,066 1'21 2.30 1.40 8.7 5.6
REQUIRED VOLUME V=1800 x DIST, AREA 3780 cf 2160 cf 3960 cf 1-3 3.11 6.9 0.6 12.9 1.0 3 : 1 3 : 1 1.85% TALL FESCUE 0.035 0.93 3.71 1.07 6.9 3.5
REQUIRES SURFACE AREA SA=325*(Q 16 7013 sf 2003 sf 7405 sf 1-4 2.15 6.9 1 0.6 8.9 1 1.0 3 : 11 3 : 1 1.85% 1EXCEL R-1 0.066 1.04 2.10 1.20 7.6 4.3
RIP-RAP LENGTH WIDTH DEPTH CLASS DEPTH 2.0 ft 2.0 ft 2.0 ft 1-4 2.15 6.9 0.6 8.9 1.0 3 : 1 3 : 1 1.85% ITALL FESCUE 0.035 0.79 3.37 0.91 6.0 2.7
APRONS FT FT FT TOP POND DIMENSIONS W x L 120 ft x 60 ft 54 ft x 38 ft + 65ft x125ft EQUIVALENT 1-5A 1.00 6,9 0.6 4.1 1.0 3 : 1 3 : 1 1.30% EXCEL R-1 0.066 0.80 1.51 0.65 6.1 2.7
FES 1-1 12 6 1,5 1 BOTTOM POND DIMENSIONS AREA 6190 sf 46 ft x 30 ft + 57ft x117 ft EQUIVALENT 1-5A 1.00 6.9 0.6 4.1 1.0 3 : 1 3 : 1 1.30% TALL FESCUE 0.035 0.60 2.41 0.49 4.8 1.7
FES 2-1 9 4.5 1.5 B VOLUME PROVIDED 13910 cf 3432 cf 13650 cf 1-5B 3.55 6.9 0.6 14.7 1.0 3 : 1 3 : 1 1.85% EXCEL PP5-8 0.066 1.28 2.38 1.48 9.1 6.2 CJ
FES 3-1 12 1 4.5 1 2.0 1 1 SURFACE AREA PROVIDED 7715 sf * 2052 sf 8124 sf * 1-5B 3.55 6.9 0.6 14.7 1.0 3 : 1 3 : 1 1.85% TALL FESCUE Q035 0.98 3.82 1.13 7.2 3.9 z
EROSION CONTROL CONSTRUCTION SEQUENCE N FES 4-1 12 6 '�}� B AVERAGE AREA 6955 sf * 1716 sf 6825 sf * 1-6 0.17 6.9 0.6 0.7 1.0 3 : 1 3 : 1 2.00% EXCEL R-1 0.066 0.32 1.12 0.40 3.0 0.6
1. OBTAIN GRADING/EROSION CONTROL PLAN APPROVAL AND PERMIT FROM THE CITY OF C FES 4-5 16 6 2.0 1 WEIR LENGTH REQUIRED (Q10) 30" RISER 30" RISER 1-6 0.17 6.9 0.6 0.7 1.0 3 : 1 3 : 1 2.00% TALL FESCUE 0.035 0.23 1.76 0,29 2.5 0.4
"1.5) 18" BARREL 18" BARREL 1-7 0.07 6.9 0.6 0.3 1.0 3 : 1 3 : 1 2.00% EXCEL R-1 0.066 0.21 0.89 0.26 2.3 0.3
2. CONTACT
SALEM INSPECTIONS.T EROSION CONTROL INSPECTOR TO ESTABLISH APRE-CONSTRUCTION CONFERENCE L=Q(10)/(3*h 1-7 0.07 6.9 0.6 0.3 1.0 3 : 1 3 : 1 2.00% TALL FESCUE 0.035 0.15 1.40 0.19 1.9 0.2 0 co
AND INSPECTION SCHEDULE. where h = 0.5' 8' SPILLWAY 8' SPILLWAY
SKIMMER SIZE (ORIFICE) 2.5" (2.2") 1,5" (1.2") 2.5" (2.1") 2-2 0.23 6.9 0.8 1.3 1.0 3 : 1 3 : 1 5.20% EXCEL R-1 0.066 0.34 1,86 1.10 3.2 0.7 W 00 LO
SELF INSPECTION - EFFECTIVE OCTOBER 1 2010, PERSONS CONDUCTING LAND-DISTURBING 54 F- 04
ACTIVITIES, LARGER THAN ONE (1) ACRE, MUST INSPECT THEIR PROJECT AFTER EACH PHASE
DEWATERING TIME 3 DAYS 3 DAYS 3 DAYS 2-2 0.23 6.9 0.8 1.3 1.0 3 : 1 3 : 1 5.20% TALL FESCUE 0.035 0.25 2.97 0.81 2.6 0.4 Z w r I
OF THE PROJECT, AND DOCUMENT THE INSPECTION IN WRITING ON APPROVED FORMS 3-3 0.49 6.9 0.8 2.7 1.0 3 : 1 3 : 1 8.00% EXCEL PP5-10 0.066 0.44 2.67 2.20 3.8 1.0 Z Cin N
00
AVAILABLE FROM THE CITY OF WINSTON SALEM INSPECTIONS OFFICE. * AREAS TAKEN FROM PLAN 3-3 0.49 6.9 O.8 2.7 1.0 3 : 1 3 : 1 8.00% TALL FESCUE 0.035 0.32 4.22 1.60 3.0 0.6 P4 Z In to d aO co
THE PHASES ARE AS FOLLOWS: + DUE TO EXISTING TOPOGRAPHIC CONSTRAINTS, THE LxW RATIO IS NOT 2:1. 3-4 1.20 6.9 0.6 5.0 1.0 3 : 1 3 : 1 8,00% EXCEL PP5-12 0.066 0.58 3.11 2.90 4.7 1.6 W z x ^04
W 0 z co
1. INSTALLATION OF PERIMETER EROSION AND SEDIMENT CONTROL MEASURES 3-4 1.20 6.9 0.6 5.0 1.0 3 : 1 3 : 1 8.00% TALL FESCUE 0.035 0.44 5.03 2.20 3.8 1.0 W m 0 c'
2. CLEARING AND GRUBBING OF EXISTING GROUND COVER 4-2A 0.71 6.9 0.7 3.4 1.0 3 : 1 3 1 6,00% EXCEL S-2 0.066 0.52 2.54 1.95 4.3 1.3 �-+ Z 0
3. COMPLETION OF ANY PHASE OF GRADING OF SLOPES OR FILLS
F � W C;O ID
4. INSTALLATION OF STORM DRAINAGE FACILITIES GROUND STABILIZATION CRITERIA 4-2A 0.71 6.9 0.7 3.4 1.0 3 : 1 3 : 1 6.00% TALL FESCUE 0.035 0.39 1 4.07 1.46 3.5 0.8 Z E-+ IL to o
5. COMPLETION OF CONSTRUCTION OR DEVELOPMENT 4-2B 5.20 6.9 0.6 21.5 9.0 3 : 1 3 : 1 6.70% 1EXCEL PP5-12 0.066 0.56 3,57 2.34 12.5 6.0 W '. i r-
L
6. ESTABLISHMENT OF PERMANENT GROUND COVER SUFFICIENT TO RESTRAIN EROSION � a
•-
STABILIZATION 4-2B 5.20 6.9 0.6 21.5 9.0 3 : 1 3 : 1 6.70% TALL FESCUE 0.035 0.39 5.43 1.63 11.5 4.0
3. CLEAR SITE MU AS NECESSARY TO INSTALL INITIAL EROSION CONTROL MEASURES AS FOLLOWS: SITE AREA DESCRIPTION TIME FRAME EXCEPTIONS � U1 7 �
a. TEMPORARY CONSTRUCTION ENTRANCE/EXIT TIME FRAMES 4-3 0.53 6.9 0.7 2,6 2.0 3 : 1 3 : 1 8.40% EXCEL S-2 0.066 0.34 2,58 1.78 4.2 1.0 z I-
b. TEMPORARY SEDIMENT BASINS. FOR SITES OVER ONE (1) ACRE, OUTLET STRUCTURES 4-3 0.53 6.9 0.7 2.6 2.0 3 : 11 3 : 1 8.40% TALL FESCUE 0.0351 0.24 4.01 1.26 3.5 0.7 0 0
(SKIMMERS) THAT ONLY WITHDRAW WATER FROM THE SURFACE OF THE BASIN, SHALL PERIMETER DIKES, SWALES, DITCHES AND SLOPES 7 DAYS NONE 4-4 4.26 6,9 0.6 17.6 8.0 3 : 1 3 : 1 6.00% EXCEL PP5-10 0,0661 0.55 3.31 2,06 11.5 5.3 E/4
BE UTILIZED. NO SEDIMENT TRAPS OR ROCK DAMS ALLOWED, 4-4 4.26 6.9 0.6 17.6 8.0 3 : 1 3 : 1 6.00% TALL FESCUE 0.0351 0.38 5.02 1.42 10.4 3.5 (�
c. TEMPORARY DIVERSION BERMS HIGH QUALITY WATER (HWQ) ZONES 7 DAYS NONE 4-5 3.46 6.9 0.6 14.3 8.0 3 : 1 3 : 1 8.40% EXCEL PP5-12 0.066 0.44 3.43 2.31 10.8 4.1
d. TEMPORARY SILT FENCING
e. SEED EMBANKMENTS AND DISTURBED AREAS OF DEVICES (INCLUDING "CLEAN" WATER SLOPES STEEPER THAN 3:1 7 DAYS IF SLOPES ARE 10' OR LESS IN LENGTH, 4-5 3.46 6.9 0.6 14.3 8.0 3 : 1 3 : 1 8.40% TALL FESCUE 0.035 0.31 5.25 1.62 10.0 2.8 ,
DIVERSION) UPON COMPLETION OF CONSTRUCTION. SEE GROUND STABILIZATION AND ARE NOT STEEPER THAN 2:1, 4-6 0.47 6,9 0.8 2.6 1.0 3 : 1 3 : 1 6.50% EXCEL S-2 0.066 0.45 2.43 1.83 3.8 1.1
: :
CRITERIA BELOW FOR MORE INFORMATION. 14 DAYS ARE ALLOWED. 4-6 0.47 6.9 0:8 2.6 1.0 3 1 3 1 6.50% TALL FESCUE 0.035 0.33 3.87 1.34 3.1 0.7
4. BEGIN CLEARING, GRUBBING AND STRIPPING OF SITE AS REQUIRED. EARTHEN-MATERIAL 4-7 0.24 6.9 0.8 1.3 1.0 3 : 1 3 : 1 8.40% EXCEL R-1 0.066 0.30 2.21 1,57 2.9 0.6 �,,��,a` ,,''•,,,,
STOCKPILES ON-SITE FOR LATER DISTRIBUTION AND/OR REMOVAL, AREAS DEDICATED FOR SLOPES 3:1 OR FLATTER 14 DAYS 7 DAYS FOR SLOPES GREATER THAN
MANAGEMENT OF LAND CLEARING AND DEMOLITION DEBRIS, CONSTRUCTION AND DOMESTIC WASTE 50' IN LENGTH 4-7 0.24 6.9 0.8 1.3 1.0 3 . 1 3 . 1 8.40% TALL FESCUE 0.035 0.22 3.53 1.15 2.4 0.4 v ••. �'�
AND HAZARDOUS OR TOXIC WASTE SHALL BE LOCATED AT LEAST 50 FEET AWAY FROM STORM
DRAIN INLETS AND SURFACE WATERS (UNLESS IT CAN BE SHOWN THAT NO OTHER ALTERNATIVES COS 1 5.00 6.9 0.7 24.2 6.0 3 :1 3 :1 3.00% EXCEL S-2 0.066 0.93 3.05 1.74 11.9 8.2 'Qr '
ARE REASONABLY AVAILABLE), AND WITHIN AREAS PROTECTED BY EROSION CONTROL MEASURES. COS 1 5.00 6.9 0.7 24.2 6.0 3 :1 3 :1 3.00% TALL FESCUE 0.035 0.65 4.71 1.22 10.1 5.2 .0 °-
5. BEGIN SITE GRADING. MAINTAIN EROSION CONTROL DEVICES IN ACCORDANCE WITH THE ALL OTHER AREAS WITH SLOPES FLATTER THAN 4:1 14 DAYS NONE, EXCEPT FOR PERIMETERS AND HQW ZONES SELF-INSPECTION CHECKLIST COS 2 5.50 1 6.9 0.7 26.6 6.0 3 :1 3 :1 4.00% EXCEL PP5-10 0.066 0.89 ' 3.43 2.22 11.6 1 7.7
MAINTENANCE PLAN. INSTALL ADDITIONAL EROSION CONTROL MEASURES AS REQUIRED. INSTALLATION OF PERIMETER EROSION CONTROL MEASURES COS 2 5.50 6.91 0.7 26,6 6.0 3 :1 3 :1 4.00% TALL FESCUE 0.035 0,63 5,35 1.57 10.0 5A -� • T 3•
DUST CONTROL/SUPPRESSION AS OUTLINED ON SHEET No, 8 WILL BE REQUIRED IF DRY ?�`l�,'••.,• ••••� 'w�,•'
CONDITIONS PERSIST DURING WORK ON THE PROJECT.
6. INSTALL STORM DRAINAGE SYSTEM AND UTILITIES. STORM PIPING SHALL BE INSTALLED TO THE SIGNATURE DATE '•�,� s,.•
POINT WHERE IT ENTERS EACH DEVICE, COMPLETION OF PIPING WILL Q= BE ALLOWED ONCE THE LINER MAX. SHEAR MAX. VELOCITY VEG. MAX VELOCITY
SITE HAS BEEN DEEMED STABLE BY THE EROSION CONTROL INSPECTOR. INSTALL PROTECTION CLEARING AND GRUBBING OF EXISTING GROUND COVER EXCEL R-1 1.6 PSF 5.5 FPS 5.5 FPS (TALL FESCUE) V)AROUND ALL INLETS AS STORM DRIAN SYSTEM IS INSTALLED. EXCEL S-2 2.0 PSF 7.0 FPS 0 N
7. PRIOR TO THE CONTRACTOR DEMOBILIZING FROM THE SITE (AT APPROXIMATELY 45 DAYS PIPING TABLE SIGNATURE DATE EXCEL PP5-8 1.5 PSF 6.0 FPS o N
PRIOR TO DEMOBILIZATION), THE FINANCIALLY RESPONSIBLE PARTY (OR THEIR DESIGNEE) WILL COMPLETION of ANY PHASE of GRADING OF SLOPES OR FILLS EXCEL PP5-8 1.5 PSF 6.0 FPS NOTIFY JOE FOGARTY (CITY OF WINSTON SALEM STORMWATER ENGINEER, 336-747-6961) AND © 0_ p_
THE DESIGNATED EROSION CONTROL INSPECTOR OF THEIR ANTICIPATED DATE TO LEAVE THE SITE. TOP/THROAT INV INV AREA 010=CIA 010(total) HWfD PIPE LENGTH EXCEL PP5-12 2.7 PSF 8.0 FPS O Q 's _i
AN ON-SITE INSPECTION WILL BE CONDUCTED PRIOR TO THE LEAVE DATE BY MR. FOGARTY AND FROM ELEV OUT TO IN SUB TOTAL C Tc 10 0 CFS PIPE DIAM. IN L.F. SLOPE SIGNATURE DATE
N
THE DESIGNATED EROSION CONTROL INSPECTOR TO MAKE CERTAIN ALL ACTION ITEMS HAVE BEEN
ADDRESSED BY THE CONTRACTOR. FES 1-2 N/A 857.50 FES 1-1 856.90 4.55 4.55 0.70 5 5.8 18.5 18.5 1.5 24 60.00 1.00% INSTALLATION OF STORM DRAINAGE FACILITIES
8. CONTINUE TO MAINTAIN EROSION CONTROL MEASURES UNTIL VEGETATIVE COVER HAS BEEN
ESTABLISHED OVER ALL DISTURBED AREAS AND SITE HAS BEEN STABILIZED. REMOVE EROSION FES 2-2 N/A 872.20 FES 2-1 867.90 0.23 0.23 0.70 5 5.8 1 0.9 0.9 0.25 18 70,00 6.14% Ir
CONTROL MEASURES Q= AFTER FINAL INSPECTION AND APPROVAL BY INSPECTOR. SIGNATURE DATE W
EROSION CONTROL MAINTENANCE PLAN FES 3-2 N/A 849.50 FES 3-1 843,10 1.20 1.20 0.70 5 5.8 4.9 4.9 1.2 18 80.00 8,00% COMPLETION OF CONSTRUCTION OR DEVELOPMENT m
Lii
1. INSPECT ALL SEDIMENTATION AND EROSION CONTROL DEVICES FOR STABILITY AND FUNCTION Z Z Li
Li W
FES 4-6 N/A 831.55 FES 4-5 829.10 2.85 2.85 0.70 5 5.8 11.6 11.6 1.0 24 70.00 3.50% SIGNATURE DATE
EACH WEEK AND FOLLOWING EACH RAINFALL EVENT. W U 'S U -1
2. REMOVE SILT/SEDIMENT FROM TEMPORARY DEVICES WHEN ACCUMULATED VOLUME HAS I-
REACHED 50% CAPACITY. FES 4-2 N/A 803.45 FES 4-1 803.00 4.26 4.26 0.70 5 5.8 17.3 17.3 1.8 24 45.00 1.007 ESTABLISHMENT OF PERMANENT GROUND COVER SUFFICIENT TO RESTRAIN EROSION 0 Q 1. 1
Q W Q
0:� = U
3. REMOVE ACCUMULATED SILT/SEDIMENT FROM BEHIND TEMPORARY SEDIMENT FENCE WHEN c) p U u)
DEPTH EXCEEDS APPROXIMATELY 0.5'. REPAIR AND REPLACE SILT FENCE AS NECESSARY. SIGNATURE DATE
4. SEED AND STABILIZE TEMPORARY DIVERSION BERMS IMMEDIATELY AFTER CONSTRUCTION,
INCLUDING "CLEAN" WATER DIVERSION BERMS. RE-GRADE/REPAIR BERMS AS REQUIRED. m
5. CONTRACTOR SHALL APPOINT AN ON-SITE INSPECTOR AND MAINTAIN RECORDS OF INSPECTIONS
IN ACCORDANCE WITH THE PROVISIONS OF THE GENERAL NPDES STORMWATER DISCHARGE PERMIT
FOR CONSTRUCTION ACTIVITIES.
- FES 1-1
E
E
SPI LLW , LINER(SEE SHEET 8)
24��
r *`RCP @ INV= 856.90
�;O BE EXTENDED TO LIMITS
y \ 'F DISTURBED AREA
1.00% -.
a ,
EROSION CONTROL NOTES EE�SFIEET2- � 06�
1. THE CONTRACTOR SHALL MAINTAIN CLOSE CONTACT WITH THE EROSION
,
i
t l
CONTROL INSPECTOR. ADDITIONAL EROSION CONTROL MEASURES MAY BE r ,., ,�` r SPILLWAY-_,LINER(SEE SHEET 8) '
REQUIRED THAT ARE NOT INDICATED ON THE PLANS BY THE EROSION CONTROL �' �` z
15" SKIMMER �' , ' �� TO BE EXTENDED TO LIMITS
INSPECTOR. IT IS THE CONTRACTORS RESPONSIBILITY TO MAINTAIN EROSION OF-DISTURBED AREA �' f ,' f f 0�1 I 1=
ONSITE, REGARDLESS OF THE MEASURES REQUIRED. ANY CHANGE IN THE 'ti �, ` ' CL
EROSIONCON A AND/OR t'`
CONTROL MEASURES / R SHALL BE CALLED TO THE
-ti
ATTENTION OF THE ENGINEER AND THE EROSION CONTROL INSPECTOR.
ALL MEASURES MUST REMAIN OPERABLE UNTIL THE SITE IS STABILIZED. MER
� f
cn
LLJ
RIP-RAP PAD
2 SKIM :
2. EROSION CONTROL DEVICES SHALL BE DILIGENTLY MAINTAINED THROUGHOUT
L=12 OR EXTEND TO BOM BASIN ,'` � t a
CONSTRUCTION. DEVICES SHALL BE INSPECTED AND REPAIRED AFTER EACH C� r 1'` t ,'
W=6 0' �, ? �� RIP-RAP PAD
SIGNIFICANT RAINFALL. a°°°
D -
r� rr r
CLASS 1 STONE ,
3. SEDIMENT TRAPS BASINS ARE TO BE CLEANED OUT WHEN THE BASIN IS NO �...� f ;'' .--..' � f ;€
/ �,,. 4 `�. � � ;; ,`, ,r `: i . ''� �=18 ,. _._ ,,> �,,� �,,,;' BAFFLES I
MORE THAN HALF FULL. THEY SHALL BE CLEARED OF ALL SILT AND RESHAPED 2 r r 1 � '� / '� ' �� f '' CT`fP C�
TO THE ORIGINAL DESIGN PARAMETER. ` ` �.._ -`'`��` ;''r , .. . ;' f
COIR BAFFLES �,
C- ASS B STONE ( )L , ,
�..- _..... 'r. (TYP.)
4. GRASS OR OTHERWISE STABILIZE ALL AREAS AS THEY ARE BROUGHT UP TO " 1, .........
3 l
GRADE. STABILIZE WITH GROUND COVER. (SEE G.C. PLAN NOTES FOR _....W f °
STABILIZATION REQUIREMENTS.) RIP-RAP- AD
L 15,
,
i F` J
,e
5. STABILIZE WITH GROUND COVER ALL SLOPES, CUT OF FILL, WITHIN THE ti; � / 7.5
TIMEFRAME LISTED ON THE ADJOINING TABLE. - I CLASS
f
iff �.. .___...., .. ..... -"-..Z..,.n..... ......._..._��_. __ �9
6. ALL EROSION CONTROL DEVICES ARE TO REMAIN IN THE PLACE UNTIL THE
i .. ... m.^" -� ) Z Z
�. �� - CLASS B ONE
� ,,. �\, fit. :;.. -.� ..., \ i 1; . ,., t .. t f � j ' p"� f� � ......._. _ -•_ -..._ .......... .___.... * t S+
SITE IS PROPERLY STABILIZEDWITH GROUND CO ALL UPSTREAM AREAS  ��" �= O �
I PE COVER. 1�t
MUST B STABILIZED I PRIOR TO REMOVAL ROSI N CONTROL DEVICES. ON 0
E B LIZED OF EROSION 0 DL E ONCE �,-'
O
THIS OCCURS, REMOVE SEDIMENT GRADE TO FINAL ELEVATIONS AND STABILIZE. � � � �
7. REMOVE EROSION CONTROL DEVICES ONLY UPON RECEIPT OF APPROVAL '
U
FROM EROSION CONTROL INSPECTOR `.
,
,
r FZ-
i
8. IF FILL MATERIALS ARE TO BE BROUGHT ONTO THIS PROJECT OR WASTE ry
Z 0
MATERIALS ARE TO BE TAKEN FROM THIS PROJECT, THIS INFORMATION MUST BE
DISCLOSED AND SHOWN ON THE EROSION CONTROL AND GRADING PLAN, t O W Z
BORROW AREAS AND DUMP SITES ARE CONSIDERED TO BE PART OF THIS
PROJECT AND THE OWNER IS RESPONSIBLE FOR STABILIZATION AND EROSION Z Q p I
CONTROL MEASURES AT THESE SITES. c p 1 SEDIMENT BASIN No 3 0 =
9. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL SITE EROSION CONTROL NOTE: SEDIMENT BASIN NO. 1 NOTE: ' '� E-+ I-
30 20 10 0 30 60 O
MAINTENANCE DURING CONSTRUCTION. IN ADDITION, THE CONTRACTOR SHALL BE NOTE: NOTE: it z
RESPONSIBLE FOR KEEPING ALL ITEMS/RECORDS REQUIRED BY THE NATIONAL OWNER SHALL PROVIDE SOILS ENGINEER TO C.M.P. = CORRUGATED METAL PIPE , , , OWNER SHALL PROVIDE SOILS ENGINEER TO C.M.P, = CORRUGATED METAL PIPE Of p z
APPROVE SUBGRADE AND KEYWAY PRIOR TO 8 TOP WIDTH 30 20 10 O 30 60 APPROVE SUBGRADE AND KEYWAY PRIOR TO 8 TOP WIDTH „ , W O
POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) PERMIT. ANY FILL MATERIAL BEING PLACED. ALL EL, = 851,5 ANY FILL MATERIAL BEING PLACED. ALL EL. = 781.5 SCALE: 1 = 30 W U
FILL MATERIAL AND COMPACTION WILL ALSO FILL MATERIAL AND COMPACTION WILL ALSO
ALL CONSTRUCTION SITES ONE (1) ACRE OR MORE, BE MONITORED BY SOILS ENGINEER TO BE TRASH RACK EMER. SPILL. „ , BE MONITORED BY SOILS ENGINEER TO BE TRASH RACK EMER. SPILL. 0 _
10. AS OF MARCH 10, 2003, PROVIDED BY OWNER. TOP OF RISER EL. = 850.0 PROVIDED BY OWNER. TOP OF RISER EL. = 780.0 SCALE: 1 = 0 c� �
REQUIRES A NPDES PERMIT. THEREFORE: 849.0 EL. = 779.0 �- >-
-WRITTEN DOCUMENTATION OF A DEVIATION FROM APPROVED PLAN MUST V) V)
BE NOTED ON THE APPROVED PLANS. 60"x60" ANTI 60"x60" ANTI ry
-WRITTEN DOCUMENTATION OF AN EMERGENCY SITUATION WHERE SEDIMENT 30" SEEP COLLAR 30" SEEP COLLAR 0
HAS BEEN DISCHARGED OFF SITE MUST BE RECORDED. ALSO, CONTRACTOR'S C.M.P
ACTIONS TO REPAIR AND RETURN AREA TO PRE-STORM CONDITION MUST BE TEMP. 4" FAIRCLOTH SKIMMER W/ .5" ORIFICE RISE 2®1 1 0 TEMP. 2.5" FAIRCLOTH"SKIMMER W/ .3" ORIFICE RISE 2 0 1 1 L__
RECORDED. W/ 4" SCHD 40 PVC BARREL 4" W/ 4 SCHD 40 PVC BARREL 4 2.0
-THE PERMITTEE SHALL INSPECT ALL EROSION AND SEDIMENTATION FLEXIBLE HOSE AND 4" STEEL NIPPLE FLEXIBLE HOSE AND 4" STEEL NIPPLE
CONTROL FACILITIES EVERY SEVEN DAYS AND WITHIN 24 HOURS OF A 1 INCH 36 L.F. 18" CMP ® 1.40% ,� 34 L.F. 18" MP @ 1.50%
RAINFALL. FINDINGS SHALL BE RECORDED AND PRESENTED UPON INSPECTOR'S 6 C.A.P. STUBBED OUT OF 4 C.A.P. STUBBED OUT OF SHEET NO.
REQUEST. RISER 12" AT ELEV 846.5 WITH RISER 12" AT ELEV 776.5 WITH
-THE CONTRACTOR SHALL PROVIDE RAIN-RECORDING DEVICE AND RECORD REMOVABLE 6" PLATE INV OUT REMOVABLE 6" PLATE INV OUT
EACH RAINFALL, WITH 4" THREADED HOLE TO FLANGED OINT EL. = 846.0 WITH 4" THREADED HOLE TO a.: , FLANGED TNT EL. = 776.0
-ANY FAILURES THAT CAUSE VISIBLE SEDIMENTATION TO LEAVE THE RECEIVE THE 4" NIPPLE WITH GAS ET RECEIVE THE 4" NIPPLE f WITH GAS T 7
V)o
APPROVED DISTURBED LIMITS SHALL BE CORRECTED IMMEDIATELY AND (2) #8 DEBAR PREFABRICATED BARREL TO RISER (2) #8 DEBAR PREFABRICATED BARREL TO RISER �`�
DOCUMENTED. BOTTOM EL. (WATERTIGHT CONNECTION) BOTTOM EL. (WATERTIGHT CONNECTION)
-A COPY OF THE NPDES PERMIT SHOULD BE KEPT ON SITE FOR 845.5 846.5 775.5 INV. EL = 776.5 1 N
REFERENCE.
**BANDED GASKETS ARE ALLOWED IN LIEU
8'(W)x8'(W)x2'(H)=128 CF 6' W x6' W x2.0' H =72 CF N
11. THE CONTRACTOR SHALL HAVE ON SITE THE MEANS TO REMOVE ANY NOT TO SCALE OF FLANGED JOINT FOR ALUMINIZED STEEL ( ) ( ) ( )- NOT TO SCALE
3000 PSI CONCRETE POURED IN „ 3000 PSI CONCRETE POURED IN
SEDIMENT TRACKED ONTO THE STREET. IF CONDITIONS REQUIRE, EQUIPMENT AND AROUND BASE SECTION PIPE. MINIMUM BAND WITH OF 24 WITH AND AROUND BASE SECTION
MUST BE ON SITE TO WASH TIRES OF VEHICLES PRIOR TO ENTERING STREET. STRAP AND ANCHOR TO CONCRETE BASE.
SEDIMENT BASIN No. 1 SEDIMENT BASIN No, 3