SW4230601_Plansheet - Misc. Detail_20230911

FLOOD CERTIFICATION SEDIMENT SEDIMENT SEDIMENT SWALEI Q BOTTOM LT RT LINING SHEAR
NOTE: THE CONTRACTOR SHALL OBTAIN A COPY OF THE NPDES The undersigned hereby certlflee to the beet of hie knowledge and NA. AREA (10) C (10) WIDTH SS SS SLOPE MATERIAL n DEPTH VEL STRESS WP A
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
AND COMPLY WITH ALL CONDITIONS AND REQUIREMENTS area HUD/FIA mope and Information provided by the Department m C(UNDISTURBED AREA)
INCLUDING,BUT NOT LIMITED TO,MAINTAINING RAIN GAUGE Housing and Urban Development and flnde that: 0.40 0.40 0.40 1-2 0.38 6,9 0.8 2.1 1.0 3: 1 3: 1 1.85% EXCEL R-1 0.066 0.55 1.45 0.63 4.5 1.5
AT THEN 917E AT ALL TIMES,AND PROVISION OF INSPECTIONS BOX ( )H,AZARDjeARER oe d: I=eyiiroD to flood mop. C(DISTURBED AREA) 0.50 0.50 0.50 1-2 0.38 6.9 0.8 2.1 1.0 3: 1 3: 1 1.85% VEGETATED 0.035 0.41 2.33 0.47 3.6 0.9
TO HOUSE INSPECTIONS LOGS AND PLANS. INSPECTIONS REQUIRED I-10 5.8 in/hr 5.8 in/hr 5.8 in/hr 1-3 0.96 6.9 0.6 4.0 1.0 3: 1 3: 1 1.85% EXCEL R-1 0.066 0.73 1.71 0.84 5.6 2.3 U
BY THE NPDES PERMIT SHALL BE PROVIDED BY THE OWNER,HOWEVER, 00
The eublect property ie not mooted Ina SPECIAL FtdOD TOTAL AREA 6.3 AC, 1,7 ac 6.8 ac
HAZARD AREA ae determined by HUD/FIA flea,map. 1-3 0.96 6.9 0.6 4.09 1.0 3: 1 3: 1 1.85%. VEGETATED 0.035 1.04 2.74 0.63 4.5 1.53
THE CONTRACTOR SHALL PROVIDE FOR MAINTENANCE OF EROSION DISTURBED AREA 2.1 AC. 1.2 c 2.2 1-4 2.15 6.9 0.6 8.9 1.0 3: 1 3: 1 1.85% EXCEL R-1 0.066 1.04 2.10 1.20 7.6 4.3
CONTROL DEVICES AS RECOMMENDED IN THE MAINTENANCE INSPECTION LOGS. The eublect property Ie located In an arts whieh has Q(10) Q=CIA 16.1 oft 4.6 cfs 17.0 cfs 4.-°.71
( )not been mapped tat
to flood areas by HUD/FIA. 1-4 2.15 6.9 0.6 8.9 1.0 3: 1 3: 1 1.85% VEGETATED 0.035 0.79 3.37 0.91 6.0 2.7
2.1
REQUIRED VOLUME V=1800 x DIST.AREA 3780 cf 2160 cf 3960 cf
REQUIRES SURFACE AREA SA=325*(Q Id 7013 sf 2003 sf 7405 sf 1-5A 0.70 6.9 0.6 2.9 1.0 3: 1 3: 1 1.30% EXCEL TEi 0.066 0.52 1.29 0.42 4.4 1.3
RIP-RAP LENGTH WIDTH DEPTH CLASS DEPTH 2.0 ft 2.0 ft 2.0 ft 1-5BA 0.705 6.9 0.6 32.19 1.0 3: 1 3: 1 1.85% VEGETATED 0.06635 0.6552 12.023 0.7542 4.3 1.3
1-5B 0.75 6.9 0.6 3.1 1.0 3: 1 3: 1 1.85% EXCEL R-i 0.066 0.65 1.60 0.75 5,1 1.9
APRONS (FT) (FT) _(FT) TOP POND DIMENSIONS(W x L) 120 ft x 60 ft 54 ft x 38 ft+ 65ft x125 ft(EQUIVALENT) 1-59 0.75 6.9 0.6 3.1 1.0 3: 1 3: 1 1.85% VEGETATED 0.035 0.49 2.57 0,57 4.1 1.2
FES 1-1 12 6 1.5 1 BOTTOM POND DIMENSIONS(AREA) 6190 sf 46 ft x 30 ft+ 57ft x117 ft(EQUIVALENT) 1-6 0.17 6.9 0.6 0.7 1.0 3: 1 3: 1 2.00% EXCEL R-i 0.066 0.32 1.12 0.40 3.0 0.6 Li
FES 2-1 5 4 1.5 A VOLUME PROVIDED 13910 cf 3432 cf 13650 cf
FES 3-1 12 4.5 2.0 1 SURFACE AREA PROVIDED 7715 sf* 2052 sf 8124 sf* 1-6 0.17 6.9 0.6 0.7 1.0 3: 1 3: 1 2.00% VEGETATED 0.035 0.23 1.76 0.29 2.5 0.4 A.
EROSION CONTROL CONSTRUCTION SEQUENCE 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
FES 4-1 15 7.5 1.5 B AVERAGE AREA 6955 sf* 1716 sf 6825 sf* �^
1.OBTAIN GRADING/EROSION CONTROL PLAN APPROVAL AND PERMIT FROM THE CITY OF WEIR LENGTH REQUIRED(Q10) 30"RISER 30"RISER 1-7 0.07 6.9 0.6 0.3 1.0 3: 1 3: 1 2,00% VEGETATED 0.035 0.15 1.40 0.19 1.9 0.2 iLJ"
WINSTON SALEM INSPECTIONS. 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
2.CONTACT EROSION CONTROL INSPECTOR TO ESTABLISH A PRE-CONSTRUCTION CONFERENCE L=0(10)/(3*h61.5) 18"BARREL 18"BARREL O TO
2-2 0.23 6.9 0.8 1.3 1.0 3: 1 3: 1 5.20% VEGETATED 0.035 0.25 2.97 0.81 2.6 0.4
AND INSPECTION SCHEDULE. where h=0.5' 8'SPILLWAY 8'SPILLWAY 3-3 0.18 6.9 0.8 1.0 1.0 3: 1 3: 1 8.00% EXCEL R-1 0.066 0.27 2.04 1.35 2.7 0.5 O W cV n
SELF INSPECTION-EFFECTIVE OCTOBER 1 2010,PERSONS CONDUCTING LAND-DISTURBING SKIMMER SIZE(ORIFICE) 2.5"(2.2") 1.5"(1.2") 2.5"(2.1") W H ..3,N
ACTIVITIES,LARGER THAN ONE(1)ACRE,MUST INSPECT THEIR PROJECT AFTER EACH PHASE DEWATERING TIME 3 DAYS' 3 DAYS 3 DAYS 3-3 0.18 6,9 0.8 1.0 1.0 3: 1 3: 1 8.00% VEGETATED 0.035 0.20 3.27 1.00 2.3 0.3 O Z it; N I
OF THE PROJECT,AND DOCUMENT THE INSPECTION IN WRITING ON APPROVED FORMS 3-4 1.20 6.9 0.6 5.0 1.0 3: 1 3: 1 8.00% EXCEL R-1 0.066 0.58 3.11 2.90 4.7 1.6 Z Cry E N 21
AVAILABLE FROM THE CITY OF WINSTON SALEM INSPECTIONS OFFICE. *AREAS TAKEN FROM PLANfn M U
THE PHASES ARE AS FOLLOWS: 3-4 1.20 6.9 0.6 5.0 1.0 3: 1 3: 1 8.00% VEGETATED 0.035 0.44 5.03 2.20 3.8 1A P'x+ m
+DUE TO EXISTING TOPOGRAPHIC CONSTRAINTS,THE LOW RATIO IS NOT 2:1. W W EC,
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1.INSTALLATION OF PERIMETER EROSION AND SEDIMENT CONTROL MEASURES 4-2A 0.50 6.9 0.7 2.4 1.0 3: 1 3: 1 5.00% EXCEL R-1 0.066 0.46 2.16 1.44 3.9 1.1 W ¢m *"10
2.CLEARING AND GRUBBING OF EXISTING GROUND COVER 4-2A 0.50 6.9 0.7 2.4 1.0 3: 1 3: 1 5.00% VEGETATED 0.035 0.34 3.45 1.06 3.2 0.7 *Z,Ch f�6
3.COMPLETION OF ANY PHASE OF GRADING OF SLOPES OR FILLS 4-28 0.23 6.9 0.8 1.3 1.0 3: 1 3: 1 5.00% EXCEL R-1 0.066 0.35 1.86 1.09 3.2 0.7 '7,..'M7 0 of m
4.INSTALLATION OF STORM DRAINAGE FACILITIES GROUND STABILIZATION CRITERIA 4-28 0.23 6.9 0.8 1.3 1.0 3: 1 3: 1 5.00% VEGETATED 0.035 0.25 2.92 0.78 2.6 0.4 Z E'' din 5
5.COMPLETION OF CONSTRUCTION OR DEVELOPMENT W"'� w r
6.ESTABLISHMENT OF PERMANENT GROUND COVER SUFFICIENT TO RESTRAIN EROSION 4-3 0.53 6.9 0.7 2.6 1.0 3: 1 3: 1 8.40% EXCEL PP5-10 0.066 0.43 2.70 2.25 3.7 1.0 .`� <0
STABILIZATION z z "
3.CLEAR SITE DNl"Y TIME FRAMES
AS NECESSARY TO INSTALL INITIAL EROSION CONTROL MEASURES AS FOLLOWS: SITE AREA DESCRIPTION TIME FRAME EXCEPTIONS 4-3 0.53 6.9 0.7 2.6 1.0 3: 1 3: 1 8.40% VEGETATED 0.035 0.31 4.25 1.62 3.0 0.6 3
I
D,TEMPORARY CONSTRUCTION ENTRANCE/EXIT 4-4 0.76 6.9 0.6 3.1 1.0 3: 1 3: 1 8.40% EXCEL PP5-12 0.066 0.46 2.80 2.41 3.9 1.1 O
b.TEMPORARY SEDIMENT BASINS. FOR SITES OVER ONE(1)ACRE,OUTLET STRUCTURES O U
(SKIMMERS)THAT ONLY WITHDRAW WATER FROM THE SURFACE OF THE BASIN,SHALL PERIMETER DIKES,SWALES,DITCHES AND SLOPES 7 DAYS NONE 4-4 0.76 6.9 0.6 3.1 1.0 3: 1 3: 1 6.40% VEGETATED 0.035 0.34 4.47 1.78 3.2 0.7 0
BE UTILIZED. NO SEDIMENT TRAPS OR ROCK DAMS ALLOWED. 4-5 0.61 6.9 0.6 2.5 1.0 3: 1 3: 1 8.40% EXCEL PP5-10 0.066 0.42 2.66 2.20 3.7 0.9 W
c.TEMPORARY DIVERSION BERMS HIGH QUALITY WATER(HWQ)ZONES 7 DAYS NONE 4-5 0.61 6.9 0.6, 2.5 1.0 3: 1 3: 1 8.40% VEGETATED 0.035 0.31 4.25 1.62 3.0 0.6
d.TEMPORARY SILT FENCING 4-6 0.10 6.9 0.8 0.6 1.0 3: 1 3: 1 6.50% EXCEL R-1 0.066 0.22 7.64 0.89 2.4 0.4
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,
DIVERSION)UPON COMPLETION OF CONSTRUCTION. SEE GROUND STABILIZATION 4-6 0.10 6.9 0.8 0.6 1.0 3: 1 3: 1 6.50% VEGETATED 0.035 0.16 2.61 0.65 2.0 , 0.2
CRITERIA BELOW FOR MORE INFORMATION. AND ARE NOT STEEPER THAN 2:1,
4.BEGIN CLEARING,GRUBBING AND STRIPPING OF SITE AS REQUIRED. EARTHEN-MATERIAL 14 DAYS ARE ALLOWED. 4-7 0.14 6.9 0.8 0.8 1.0 3: 1 3: 1 8.40% EXCEL R-1 0.066 0.24 1.96 1.26 2.5 0.4 * **
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 4-7 0.14 6.9 0.8 0.8 1.0 3: 1 3: 1 8.40% VEGETATED 0.035 0.17 3.06 0.89 2.1 0.3 **.;*. yyA
MANAGEMENT OF LAND CLEARING AND DEMOLITION DEBRIS,CONSTRUCTION AND DOMESTIC WASTE, 50'IN LENGTH COS#1 5.00 6.9 0.7 24.2 6.0 3: 1 3: 1 1.70% EXCEL R-1 0.066 1.07 2.48 1.14 12.8 9.9 y_ `b
AND HAZARDOUS OR TOXIC WASTE SHALL BE LOCATED AT LEAST 50 FEET AWAY FROM STORM O
DRAIN INLETS AND SURFACE WATERS(UNLESS IT CAN BE SHOWN THAT NO OTHER ALTERNATIVES COS#i 5.00 6.9 0.7 24.2 6.0 3: 1 3: 1 1.70% VEGETATED 0.035 0.76 3.87 0.81 10.8 6.3 :NY �' •"s G�
ARE REASONABLY AVAILABLE),AND WITHIN AREAS PROTECTED BY EROSION CONTROL MEASURES. COS#2 6.10 6.9 0.7 29.5 6.0 3: 1 3: 1 3.90% EXCEL PP5-10 0.066 0.95 3.52 2.31 12.0 8.4 u IS e I a
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 6.10 6.9 0.7 29.5 6.0 3: 1 3: 1 3.90% VEGETATED 0.035 0.67 5.47 1.63 10.2 5.4 'm ' s�)+3:'�
MAINTENANCE PLAN. INSTALL ADDITIONAL EROSION CONTROL MEASURES AS REQUIRED. "y••'
INSTALLATION OF PERIMETER EROSION CONTROL MEASURES •DUST CONTROL/SUPPRESSION AS OUTLINED ON SHEET Na.8 WILL BE REQUIRED IF DRY ..„'4. j6",:"
CONDITIONS PERSIST DURING WORK ON THE PROJECT. *.*N
6.INSTALL STORM DRAINAGE SYSTEM AND UTILITIES. STORM PIPING SHALL BE INSTALLED TO THE SIGNATURE DATE rw ***
POINT WHERE IT ENTERS EACH DEVICE. COMPLETION OF PIPING WILL�y BE ALLOWED ONCE THE CLEARING AND GRUBBING OF!COSTING GROUND COVEN LINER MAX. SHEAR MAX. VELOCITY VEG. VELOCITY II,
SITE HAS BEEN DEEMED STABLE BY'THE EROSION CONTROL INSPECTOR. INSTALL PROTECTION PIPING TABLE EXCEL R-1 1.6 PSF 5.5 FPS 5.5 FPS M
AROUND ALL INLETS AS STORM DRIAN SYSTEM IS INSTALLED. EXCEL S-2 2.0 PSF 7.0 FPS 7.0 FPS
7.PRIOR TO THE CONTRACTOR DEMOBILIZING FROM THE SITE(AT APPROXIMATELY 45 DAYS TOP/1HROAT INV ' INV I AREA Q10=CIA Q10(total) HW/D PIPE LENGTH SIGNATURE DATE EXCEL PP5-8 1.5 PSF 6.0 FPS 10 FPS 00
EXCEL PP510 2.3 POP 7.0 FPS 12 FPS O N
-
PRIOR TO DEMOBILIZATION),THE FINANCIALLY RESPONSIBLE PARTY(OR THEIR DESIGNEE)WILL FROM ELEV OUT TO IN SUB TOTAL C T 1(10) CFS PIPE DIAM.(IN) (L.F.) SLOPEI
NOTIFY JOE FOGARTY(CITY OF WINSTON SALEM STORMWATER ENGINEER,336-747-6961 AND COMPLETION OF ANY PHASE OF GRADING OF SLOPES CR FILLS EXCEL PP5-12 2.7 PSF 8.0 FPS 15 FPS O " o_ J
) 1-5 858.56 855.30 1-3 854.21 1.45 1.45 0.70 5.8 5.9 5.9 1.0 18 120.32 0.91% N K •
THE DESIGNATED EROSION CONTROL INSPECTOR OF THEIR ANTICIPATED DATE TO LEAVE THE SITE. 0 Q
1-4 863.75 859.95 1-3 855.95 2.15 2.15 0.70 5.8 8.7 8.7 1.3 18 178.85 2.24%
AN ON-SITE SIN INSPECTIONRSI WILL BETR CL NSPECTO PRIOROO THE LEAVEINDATE BIO M HAVE AND 1-3 860.45 854.01 1-2 853.52 0.96 4.56 0.70 5.8 3.9 18.5 1.3 24 45.00 1.09% SIGNATURE DATE N f O
THE DESIGNATED EROSION CONTROL INSPECTOR TO MAKE CERTAIN ALL ACTION ITEMS HAVE BEEN
ADDRESSED BY THE CONTRACTOR. 1-2 860.45 853.32 1-1 852.36 0.38 4.94 0.70 5.6 1,5 20.1 1.5 24 120.00 0.80% 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 2-2 873.39 869.90 2-1 867.90 0.23 0.23 0.70 5.8 0.9 0.9 0.25 18 70.00 2.86% IX
CONTROL MEASURES ONLY AFTER FINAL INSPECTION AND APPROVAL BY INSPECTOR. SIGNATURE DATE W
3-4 850.63 845.91 3-3 845.46 1.20 1.20 0.70 5.8 4.9 4.9 1.2 18 45.00 1.00% COMPLETION OF CONSTRUCTION OR DEVELOPMENT coO
EROSION CONTROL MAINTENANCE PLAN z w
1.INSPECT ALL SEDIMENTATION AND EROSION CONTROL DEVICES FOR STABILITY AND FUNCTION 3-3 850.63 844.26 3-2 842.51 0.41 1.61 0.70 5.8 1.7 6.5 1.1 18 35.00 5.00% Z Z Z W
3-2 848.50 840.01 3-1 837.00 0.00 1.61 0.70 5.8 0.0 6.5 1.1 18 35.00 8.60% SIGNATURE DATE Z O 3 Y W
EACH WEEK AND FOLLOWING EACH RAINFALL EVENT. Pi U J
2.REMOVE SILT/SEDIMENT FROM TEMPORARY DEVICES WHEN ACCUMULATED VOLUME HAS ESTABLISHMENT OF PERMANENT GROUND COVER SUFFICIENT TO RESTRAIN EROSION m< Ili2 U
REACHED 50%CAPACITY. 4-7 835.16 831.04 4-6 829.30 0.14. 0.14 0.70 5.8 0.6 0.6 0.5 15 28.15 6.18% O CL
3.REMOVE ACCUMULATED SILT/SEDIMENT FROM BEHIND TEMPORARY SEDIMENT FENCE WHEN 4-6 833.40 828.30 4-5 814.44 3.30 3.44 0.70 5.8 13.4 14.0 1.1 24 195.16 7.10% 0 000 V7
DEPTH EXCEEDS APPROXIMATELY 0.5'. REPAIR AND REPLACE SILT FENCE AS NECESSARY. 4-5 818.69 814.24 4-4 798.40 0.61 4.05 0.70 5.8 2.5 16.4 1.3 24 , 175.98 9.00% 51GNA1URE DATE
4.SEED AND STABILIZE TEMPORARY DIVERSION BERMS IMMEDIATELY AFTER CONSTRUCTION, 91 4-4 803. . . . . JO 5.8 3.1 19.5 1.5 24 45.00 100%.
INCLUDING"CLEAN"WATER DIVERSION BERMS. RE-GRADE/REPAIR BERMS AS REQUIRED. 79820 4-3 79775 076 481 Om
5.CONTRACTOR SHALL APPOINT AN ON-SITE INSPECTOR AND MAINTAIN RECORDS OF INSPECTIONS 4-3 803.91 797.55 4-2 791.20 0.53 5.34 0.70 5.8 2.2 21.7 1.0 30 120.61 5.26%
IN ACCORDANCE WITH THE PROVISIONS OF THE GENERAL NPDES STORMWATER DISCHARGE PERMIT 4-2 796.30 791.00 4-1 788,00 0.76 6.10 0.70 5.8 3.1 24.8 1.1 30 80.00 3.75%
FOR CONSTRUCTION ACTIVITIES.
-� .! ---__ - - PILLWA LINER SEE SHEET 8)
( -- --4 -- \ 0 BE XTEIUOED TO LIMITS
� �\ f \vI 1 ��� \ DISRBED AREA
_-. v v 't �( Ay A\ 1l
EROSION CONTROL NOTES (\ \ ,( // \ \ `� 6�\. \\ -\ \ \ 11
1. THE CONTRACTOR SHALL MAINTAIN CLOSE CONTACT WITH THE EROSION �r /7/ -
CONTROL INSPECTOR.ADDITIONAL EROSION CONTROL MEASURES MAY BE \\ , , ` / � � PILLWAY LINER(SEE SHEET 8) 'P' •\ t1Tz
REQUIRED THAT ARE NOT INDICATED ON THE PLANS BY THE EROSION CONTROL 25"SKIMMER • / TOBEEXNOOTOLIMITS // ( O
INSPECTOR.IT IS THE CONTRACTOR'S RESPONSIBILITY TO MAINTAIN EROSION \ OF-D,ISTURBED AREA \ ) \ a
ONSITE,REGARDLESS OF THE MEASURES REQUIRED.ANY CHANGE IN THE -EROSION CONTROL MEASURES AND/OR GRADING SHALL BE CALLED TO THE �� 7 ! / /1 :A �1L,, UATTENTION OF THE ENGINEER AND THE EROSION CONTROL INSPECTOR. \.� /'' / / / t / 25°S�.(IMMER ALL MEASURES MUST REMAIN OPERABLE UNTIL THE SITE IS STABILIZED. /2. EROSION CONTROL DEVICES SHALL BE DILIGENTLY MAINTAINED THROUGHOUT /CONSTRUCTION.DEVICES SHALL BE INSPECTED AND REPAIRED AFTER EACH Ocl: >/r; /
� r RIP-RAP PAD ) jL SIGNIFICANT RAINFALL. ( ( C1A556 STONE / / 1•3. SEDIMENT 7RAPS/BASINS ARE TO BE CLEANED OUT WHEN THE BASIN IS NOv \ � B ) oMORE THAN HALF FULL.THEY SHALL BE CLEARED OF ALL SILT AND RESHAPED LR9 // 'TO THE ORIGINAL DESIGN PARAMETER. _ FES 1\4. GRASS OR OTHERWISE STABILIZE ALL AREAS AS THEY ARE BROUGHT UP TO - ,� _INV=�52mi. \ 840 RIP / ceGRADE.STABILIZE WITH GROUND COVER. SEE G.C.PLAN NOTES FOR SEE SHEET 2 \ soW=7.5',+ • RIP-RAP PAD•
STABILIZATION REQUIREMENTS) ( 2 # 24"HOPE O ; \I ( ;. D-18% /O.BOR CLASS='70E
5. STABILIZE WITH GROUND COVER ALL SLOPES CUT OF FILL,WITHIN THE TIMEFRAME LISTED ON THE ADJOINING TABLE. - I \ \ \ 1 r `-- 1 / s , -- f I CLASS B STONE Q
8. ALL EROSION CONTROL DEVICES ARE TO REMAIN IN THE PLACE UNTIL THE \ \ \ \\\\ \\ F 1 / I r4Y,"®q,i - \\ / / 1v 1(`' ZO Z
SITE IS PROPERLY STABILIZED WITH GROUND COVER.ALL UPSTREAM AREAS RIP RAP PAD ( l l t ) \ l-\ \ / / / • ------ \ •- Ir.+y.1
THIS MUST BE OCCURS,,REMOVE PRIOR EOIMENR GRADE E OF TO FINALLEELLEV ELEVATIONS AND STABILIZE, WCE BOOR EXTEND TO BOTTOM BASIN l •t 1 `\ \ \• \\\\-\ f. {/ / 17 f x „ -' -�, \\\ �\ �'/\ 1 / /( a„� \ *15 Q.A Q
7. REMOVE EROSION CONTROL DEVICES ONLY UPON RECEIPT OF APPROVAL D=18" \ ( ,� ,� \ \ \ / /�O 1 �y� \ ..,_. y \ /FROM
O 0_ _
FROM EROSION CONTROL INSPECTOR. CLASS 1 STONE i \ \ \ \ / '(y>
v 1 I V A V y \ CO O a CD F
8. IF FILL MATERIALS ARE TO BE BROUGHT ONTO THIS PROJECT OR WASTE / \ \ \ \ \ \ - 'SO�9°I' FES 4-1 E%CELSIOR Z Z 0p
MATERIALS ARE TO BE TAKEN FROM THIS PROJECT,THIS INFORMATION MUST BE AY \ I \ \ \ \ \ ''' INV=788.0 MATTING • O,-,A Z
DISCLOSED AND SHOWN ON THE EROSION CONTROL AND GRADING PLAN. 4 ' I- )
1 V Y \ \ .� \ SEDIMENT BASIN No. 3 U w Q rn
W
BORROW AREAS AND DUMP SITES ARE CONSIDERED TO BE PART OF THIS `- \ I T \ \ \ \ ` SEE SHEET#4O
PROJECT AND THE OWNER IS RESPONSIBLE FOR STABILIZATION AND EROSION I • T \ ( r . \ . 30' 20' 10' 0 30' 60' Z Q Q ., I
CONTROL MEASURES AT THESE SITES. .. !� O Z
SEDIMENT BASIN No. 1 SCALE: 1" = 30' -a p xT�
9. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL SITE EROSION CONTROL NOTE: NOTE: O LL. W
MAINTENANCE DURING CONSTRUCTION.IN ADDITION,THE CONTRACTOR SHALL BE NOTE: NOTE: Z Z
OWNER SHALL PROVIDE SOILS ENGINEER TO C.M.P.=CORRUGATED METAL PIPE OWNER SHALL PROVIDE SOILS ENGINEER TO C.M.P.=CORRUGATED METAL PIPE 0 7
RESPONSIBLE FOR KEEPING ALL ITEMS/RECORDS REQUIRED BY THE NATIONAL gppftOVE SUBGRADE AND KEYWAY PRIOR To 8'TOP WIDTH 30' 20' 10' 0 30' 60' APPROVE SUBGRADE AND KEYWAY PRIOR no
8 TOP WIDTH W 0
POLLUTANT DISCHARGE ELIMINATION SYSTEM(NPDES)PERMIT. =NY FILL MATERIAL BEING PLACED.ALL EL=851.5 , , ANY FILL MATERIAL BEING PLACED.ALL EL.=781.5 g W 0
FILL MATERIAL AND COMPACTION WILL ALSO _----- FILL MATERIAL AND COMPACTION WILL ALSO
BE MONITORED BY SOILS ENGINEER TO BE TRASH RACK EMER.SPILL. , BE MONITORED BY SOILS ENGINEER TO BE TRASH RACK EMER.SPILL. _
10.AS OF MARCH 10,2003,ALL CONSTRUCTION SITES ONE(1)ACRE OR MORE, PROVIDED BY OWNER. TOP OF RISER EL.=B50.0 SCALE: 1" = 30' PROVIDED BY OWNER. TOP OF RISER EL.=780.0 O M
REQUIRES A NPDES PERMIT.THEREFORE: Ak 849.0 AA\ EL=779.0 1-F+I
-WRITTEN DOCUMENTATION OF A DEVIATION FROM APPROVED PLAN MUST
BE NOTED ON THE APPROVED PLANS. 60"x60"ANTI 60"x60"ANTI GT
-WRITTEN DOCUMENTATION OF AN EMERGENCY SITUATION WHERE SEDIMENT SEEP COLLAR SEEP COLLAR LL
HAS BEEN DISCHARGED OFF SITE MUST BE RECORDED.ALSO,CONTRACTOR'S _ _ 1 t 1 L_ _ _J 1 1 L_
ACTIONS TO REPAIR AND RETURN AREA TO PRE-STORM CONDITION MUST BE TEMP.4"FAIRCLOTH SKIMMER W/ .5"ORIFICE _ 2.0 2.0 TEMP.2.5"FAIRCLOTH SKIMMER W/ .3"ORIFICE 2.0 2.0
RECORDED. W/4°SCHD 40 PVC BARREL 4" W/4"SCHD 40 PVC BARREL 4"
-THE PERMITTEE SHALL INSPECT ALL EROSION AND SEDIMENTATION FLEXIBLE HOSE AND 4"STEEL NIPPLE ,'' FLEXIBLE HOSE AND 4"STEEL NIPPLE ,.J:
CONTROL FACILITIES EVERY SEVEN DAYS AND WITHIN 24 HOURS OF A 1 INCH ,,� L CUP 0 t.40% , L.� I MP 0 1.50% 1 SHEET NO.
RAINFALL.FINDINGS SHALL BE RECORDED AND PRESENTED UPON INSPECTOR'S 6"C.A.P.STUBBED OUT OF 4"C.A.P.STUBBED OUT OF
REQUEST. RISER 12"AT ELEV 846.5 WITH RISER 12"AT ELEV 776.5 WITH `t'".,"v"," .
-THE CONTRACTOR SHALL PROVIDE RAIN-RECORDING DEVICE AND RECORD REMOVABLE 6'PLATE INV OUT REMOVABLE 6"PLATES INV OUT
EACH RAINFALL WITH 4"THREADED HOLE TO NE'§lti. FLANGED siNT EL 846.0 WITH 4"THREADED HOLE TO FLANGED .INT EL-776.0 o-ANY FAILURES THAT CAUSE VISIBLE SEDIMENTATION TO LEAVE THE RECEIVE THE 4"NIPPLE WITH GA ET WITH GAS T(2)#8 REBAR/ RECEIVE THE 4"NIPPLE
APPROVED DISTURBED LIMITS SHALL BE CORRECTED IMMEDIATELY AND PREFABRICATED BARREL TO RISER (2)#8 REBAR PREFABRICATED BARREL TO RISERDOCUMENTED. BOTTOMEL. (WATERTIGHT CONNECTION) BOTTOMEL. (WATERTIGHT CONNECTION) 4111,,!:-A COPY OF THE NPDES PERMIT SHOULD BE KEPT ON SITE FOR 845.5 846.5775.5INV.EL=776.5I
REFERENCE. 8'( x8'(W)z2'(H)-T29 CF **BANDED GASKETS ARE ALLOWED IN LIEU
)= .NOT TO SCALE OF FLANGED JOINT.FOR ALUMINIZED STEEL 6'(W)x6'(W)x2.O'(H)=72 CF NOT TO SCALE Am
11.THE CONTRACTOR SHALL HAVE ON SITE THE MEANS TO REMOVE ANY 3000PSI CONCRETE POURED IN 30060 P$si 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