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Home My WebLink About20220203_ESC_Calcs�ST71tMWATER RETENTION CALCULATIONS yRr� Project: PARKTON BORROW PIT MODIFICATION Job #: 40-1685 By: ART Date: 1/6/2022 Revision - `� z INr"��IV� I�1"TJj� ��/Bf'kiUti yip STAGE -STORAGE FUNCTION (ABOVE PERMANENT POOL) S Z CONTOUR ACCUM. CONTOUR AREA INCR. VOL. VOL. STAGE In S In Z Z est 165.00 0 0 0.0 166.00 16,298.25 8,149 8,149 1.0 9.0057 0.0000 1.02 167.00 17,079.61 11,126 19.275 2.0 9.8666 0.6931 1.91 168.00 17,879.21 17,479 36,754 3.0 10.5120 1.0986 3.04 169.00 18,697.05 18,288 55,043 4.0 10.9159 1.3863 4.08 170.00 19,533.15 19,115 74,158 5.0 11.2139 1.6094 5.06 171.00 20,387.49 19,960 94,118 6.0 11.4523 1.7918 6.01 171.50 20.821.65 10,302 104,420 6.5 11.5562 1.8718 6.48 Constant (y-Intercept) 8.97656 Ks = 7915 Slope (X Coefficient) 1.38286 b = 1.380 Standard Error of Coefficient 0.03611 RZ = 0.99874 11.0000 10.8000 10.6000 c 10.4000 10.2000 10.0000 STAGE -STORAGE FUNCTION log -log plot = 1.5189x + 8,8224 R2 = 0.9988 9.8000 0.0000 0.2000 0.4000 0.6000 0.8000 1.0000 1.2000 1.4000 1.6000 In Z DEWATERING BASIN SIZING QP = 1000 gpm OR 2.23 T = 13 hr V= 104263.9 cf Time to Peak. T.,: _ V Tp = 561.1 min cfs RECEIVED FEB 0 3 2022 LAND QUALITY MINING PROGRAM E S O O`iL ' _ 10Z EAL 9f ' �i r 13325 2 'Fo -* Seriesl -Unear (Seriest) STORAGE VOLUME DRAWDOWN TIME Number of orifices = 1 Cc = 0.6 D= 6 in A = 020 sf g = 32.2 ft/sec2 ElevationOVERFLOW = 171.00 ElevationlIVERT = 165.00 He = 6.00 Hd3 = 2.00 Q = 2.28 cfs TemporaryPOOIVOLUIE = 95123 cf TImeDEWATERING = 11.61 flours Page 1 STORMWATER RETENTION CALCULATIONS Project: PARKTON BORROW PIT MODIFICATION By: ART Peak Inflow* = 2.23 cfs Peak Unrestricted Outflow = 2.28 cfs Peak Pond Outflow* = 0.46 cfs Peak Elevation* = 171.06 ft Peak Storage* = 95123 cf Job #: 40-1685 Date: 1 /6/2022 Revision: - Top of Pond El. [ft] = 171.50 OKI Storage Avail.[ct] = 104420 OKI Pipe (Low -Flow Orifice): RISER N 0 Riser Type = Precast MH STORM ROUTING Cd 0.6 Dr = 36.00 in Input Data: D 5 Etop = 171.00 ft Qp 2.23 cfs Zi 83.50 Cwr = 3.33 Tp 561 min Cdr = 0.6 AT 50 min BARREL EMERGENCY WEIR Ks 7915 Db = 6 in Cw = 3 b 1.38 Einv = 165.00 ft Ecr = 171.50 ft Cdb - 0.6 LW = 10 ft LOW -FLOW RISER RISER PRINCIPAL TOTAL TIME INFLOW STORAGE STAGE ORIFICE (weir) (orifice) BARREL SPILLWAY EM. WEIR OUTFLOW [min) [cfs] [ft3] [ft] [cfs] [cfs] [cfS) [cfs] [cfs] [cfS] [cfs] 0 0.00 0 165.00 0 0.00 0.00 0.00 0.00 0.00 0.00 50 0.04 0 165.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100 0.17 130 165.05 0.00 0.00 0.00 0.02 0.00 0.00 0.00 150 0.37 641 165.16 0.00 0.00 0.00 0.09 0.00 0.00 0.00 200 0.63 1752 165.34 0.00 0.00 0.00 0.26 0.00 0.00 0.00 250 0.92 3638 165.57 0.00 0.00 0.00 0.53 0.00 0.00 0.00 300 1.24 6412 165.86 0.00 0.00 0.00, 0.74 0.00 0.00 0.00 350 1.54 10118 166.19 0.00 0.00 0.00 0.92 0.00 0.00 0.00 400 1.81 14728 166.57 0.00 0.00 0.00 1.08 0.00 0.00 0.00 450 2.02 20144 166.97 0.00 0.00 0.00 1.24 0.00 0.00 0.00 500 2.16 26202 167:38 0.00 0.00 0.00 1.38 0.00 0.00 0.00 550 2.23 32693 167.79 0.00 0.00 0.00 1.51 0.00 0.00 0.00 600 2.20 39371 168.20 0.00 0.00 0.00 1.62 0.00 0.00 0.00 650 2.09 45976 168.58 0.00 0.00 0.00 1.72 0.00 0.00 0.00 700 1.91 52253 168.93 0.00 0.00 0.00 1.81 0.00 0.00 0.00 750 1.70 57975 169.23 0.00 0.00 0.00 1.88 0.00 0.00 0.00 800 1.51 63077 169.50 0.00 0.00 0.00 1.95 0.00 0.00 0.00 850 1.35 67621 169.73 0.00 0.00 0.00 2.00 0.00 0.00 0.00 900 1.20 71667 169.94 0.00 0.00 0.00 2.04 0.00 0.00 0.00 950 1.07 75271 170.11 0.00 0.00 0.00 2.08 0.00 0.00 0.00 1000 0.95 78481 170.27 0.00 0.00 0.00 2.12 0.00 0.00 0.00 1050 0.85 81340 170.41 0.00 0.00 0.00 2.14 0.00 0.00 0.00 1100 0.76 83885 170.53 0.00 0.00 0.00 2.17 0.00 0.00 0.00 1150 0.67 86153 170.64 0.Q.O 0.00 0.00 2.19 0.00 0.00 0.00 1200 0.60 88172 170.74 0.00 0.00 0.00 2.21 0.00 0.00 0.00 1250 0.53 89970 170.82 0.00 0.00 0.00 2.23 0.00 0.00 0.00 1300 0.48 91572 170.90 0.00 0.00 0.00 2.24 0.00 0.00 0.00 1350 0.42 92998 170.96 0.00 0.00 0.00 2.26 0.00 0.00 0.00 1400 0.38 94268 171.02 0.00 0.09 4.88 2.27 0.09 0.00 0.09 1450 0.34 95123 171.06 0.00 0.46 8.34 2.28 0.46 0.00 0.46 Page 2 M `- U) M r M 0 In M N r O M W r- 0 0 LO d d' M M M M N N N N r e- r r r r r e- r r r O O O O d O O o O O O O O O o d O N M N N N r r r r r r O d o 0 0 a 0 0 0 0 0 a 0 o O o 0 0 0 0 0 0 O O O o a a d o a a a 0 a a d O o a a a a Co a O O O O O O O O O O O O O C O O O O O C O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 � o000000000000000000a000000a0000a000a000A000Aaocaa000000ao '�S2!'3a�` o00000000000000000000000c00000000000000000000000000000aoo 00 r O M r 00 CO LA M N r- O 0p 00 ti C0 lO tO d d M M M M N N N N t- r r r r r r r r r r 0 0 0 0 0 0 0 a 0 0 a 0 0 a 0 0 0 00000000000000000000000000000c00000000000000000000000000 00 N CO ti ti r` ti In r- ti t` h h ti ti rl- ti h h ti ti ti ti ti t` ti r- ti 0 0 0 0 0 0 0 0 0 0 0 0 O 0 0 0 c0 0 0 0 w 0 0 0 0 w 0 0 0 O 0 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N CV N N N N N cV (Ni N N N N N N cV N N N N N N N N N N N N N N N cV N N N N N N N N N N N N N N N N (Ni CV N N N N cV O C .y *5 M M r hll�r N O O O o r M 0 Oqt 00 V M CO M O 00 0 to V 'd' d V to 0 r` O r M C0 O N C0 O M ti N CO r CO r� N t70 d O C0 N M O O N 00 C0 M r O ti <T N r O f~ Ln N O CA ti C0 to 'Ch N r O O 00 ti CO tf) d M N N r O O d CO h CO c0 ct� tO sr C7 M N N N r r O O C � � ti ff c0 CO C0 C0 tO tO lA In tO tt d d d th M M M cM cM cM cM M N N N N N N N N N N N 7 00 r lt7 M r M CO tO M N r M W C0 1` 0 0 O V V M M M M N N N N r r r r r r r r r r r O Ca CA d O A a 0 0 0 0 0 0 0 o O A N CM N N N r r r r r r O a 0 0 0 0 0 a a a 0 0 0 0 a 0 a 0 0 0 a a 0 0 0 a a 0 0 a a a a 0 a a 0 a a a a 0 a 0 0 O O O O O O O O O O O O O C O O O O O O O O O O O O O O O O O O O O O O O O O o 0 0 0 0 0 0 0 0 C 0 0 0 0 0 0 0 A o 0 0 0 0 o a 0 0 0 0 0 o a o 0 0 o a o 0 0 0 o a o 0 0 0 o a o 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 z 0 ¢ tO d �t M M M M N N N N N N N r r r r r r r r r r r r r r r A d O 0 0 CA d O o Ca 0 0 0 CQ O O CA o 0 0 CD d 0 O o O O o 0 0 0 0 0 0 0 0 0 0 0 0 O o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O o 0 0 0 0 0 0 0 0 0 a 0 0 0 0 0 0 0 0 U r r t-- r r r r r r r r r r r r e- r r r r r r r r r r r r - r r r r r r r r r r r r r r r r r r r r r r r r r r r ti r`tititititititititir`titititi►�tir`tir`tititir`r-r-ti�rr•f-r`r-r-rntif`1`I`rtitirr hr_tirNr_N Zr r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r O0 O �d CO tO r I` N O 00 r N h o tO M CM O O Co V CO) d h O to r c0 C0 to N tO c0 00 O M CO O M V O O r t` It r 00 tO N O 00 c0 `� N O W ti c0 VT-o) 00NtiM00A—r-err 000OMr a1-O�NrMMN 00 CMc'MNrr�CAOo00cor`r`Nco(00000Lr) oµ't,OtO�9Tv I�0000 OLn M MNNNrrrrCaOO OOC3)OCACnOaCAOOCAOCA000o0000coco00000000000000Go o0000co0000 W� CO) 0) 0 0)� 0)� 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0)� 0)(M 0) 0) 0)� 0) 0) 0) 0) C)� 0) QO 0) 0) W 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0 U � Z Oco � m Z Otid'rO1` tOCV) NrO00NNC00014tVMMMNNNN-rrre-rrOOOOOOOOOOOOO0000OOO c000000000000000c0000000000000000000c00000c0000000000000 Wa¢ a 3 V 000000000000000000a0000000000000000000000000000000000000 Otc')OOOtAOtOAtOatOOtOOtOOOOtOOtoOtOOtOOtOOtoAtOOOOtOOtAOOOtAOtOOtOOt,OOtOOOOtOOtO tO tO CD C0 r` ti 00 O O O O O r r N N M M �f tO lO CO CO f` ti 00 O O O O O r r N N M M d tO O c0 c0 ^ Op 0p Q) O O O r r N N r V- r T- r r V- a`m i ch Q CA ev a 2.50 2.00 1.50 0 1.00 0.50 r IS ROUTING RESULTS - 10 YEAR DESIGN STORM 0 500 1000 1500 2000 2500 3000 Time [min] tINFLOW [cfs] —+♦TOTAL OUTFLOW [cfs] —*—PRINCIPAL SPILLWAY [cfs]—)(—EM. WEIR [cfs] STORMWATER RETENTION CALCULATIONS Project: PARKTON BORROW PIT MODIFICATION Job #: 40-1685 By: ART Date: 1/11/2022 Revision: - BASIN 1 STAGE -STORAGE FUNCTION (ABOVE PERMANENT POOL) S Z CONTOUR ACCUM. CONTOUR AREA INCR. VOL. VOL. STAGE In S In Z Z est [FT`j [FT'j [FT'j [FT] [FTj 173.00 0 0 0.0 174.00 1,818.52 909 909 1.0 6.8126 0.0000 1.10 175.00 2,373.63 1,397 2,307 2.0 7.7435 0.6931 1.87 176.00 3,000.74 2,687 4.994 3.0 8.5160 1.0986 2.90 177.00 3,699.86 3,350 8,344 4.0 9.0293 1.3863 3.89 178.00 4,470.97 4,085 12,430 5.0 9.4278 1.6094 4.89 179.00 5,314.08 4,893 17,322 6.0 9.7597 1.7918 5.91 180.00 6,229.20 5,772 23,094 7.0 10.0473 1.9459 6.97 181.00 7.216.31 6,723 29,816 8.0 10.3028 2.0794 8.06 182.00 8,296.23 7,756 37,573 9.0 10.5340 2.1972 9.20 183.00 9,210.52 8,753 46,326 10.0 10.7435 2.3026 10.37 184.00 10,100.16 9,655 55,981 11.0 10.9328 2.3979 11.56 Constant (y-Intercept) Slope (X Coefficient) Standard Error of Coefficient RZ = 6.64988 Ks = 773 1.75410 b = 1.750 0.08237 0.99644 STAGE -STORAGE FUNCTION log -log plot 9.2000 9.0000 8.8000 8,6000 = 1.8583x + 6.4614 8.4000 R2=0.9997-Series1 Linear (Seriesl 8.2000 8.0000 7.8000 7.6000 0.0000 0.2000 0.4000 0.6000 0.8000 1.0000 1.2000 1.4000 1.6000 In Z DEWATERING BASIN SIZING QP = 5812.36 gpm OR 12.95 T = 1.2 hr V= 55940.24509 cf Time to Peak. T.: T V ° 1.39 • Q�, Tp= 51.8 min cfs Page 1 ,! J N O N 0o 0 O N O C 0 0 Z O Q U U) LL 0 O H va 40 V W Z0 O_m Z Z Hui Y �aF- z waa CO) a m � v J roam m aOyOOOOaOaOOOOOOOAOOooAVOOOOOaOO j 0O 0 Ca0,00(+r��ti tn00000000000000000000000000000 �0;,0 c Got• 00000000000000Dooc000000D0000 � CL w W LLI II II II II II z II II II c�o —CD 0 0 o A o 0 o A o v o A o 0 o A o 0 o a o 0 0 o A A O o CO) 0000000000000000O0000000000 w z 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ay w w a CL� �, w �. 0 3 3 3 W ^O0000000000A00000000AO0000000 ,� 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Vw� Q,�D00000D0000000000000000c00000 N�wUC) m Edo�000000000000000000000c0000000 c+ M co N o 0 0 0 0 0 0 0 0 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o o A o 0 0 0 0 0 0 o A o o O D o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3�j V 4= O -� w O CO 11 II II �U G. 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O (` LO N O 1,- M O CO d' N O o o �- N v cf� co WY V. f`�NO00(Od. . . . 4.NO . e- h 00 00 CO o) O O ar-+ tom•• .� eNi• eN••. r: eN•. 1N'". aN'' r-,:r'..� :eN•.j eN•••'� �.,�;' O O O O o) o) OO 00 O 00 00 h n h 1` I` (O W a Q N F— m a t� z M 0 N M d to M ti O O O M M O V- N M V O 0 1` O O O N M Vow h o0 O o e- N M I to O N w O O r N M � N. 1` P� N. o0 00 0 w ao 0 J O wa`m M STORMWATER RETENTION CALCULATIONS Project: PARKTON BORROW PIT MODIFICATION By: ART STILLING BASIN 1 Job #: 40-1685 Date: 1 /11 /2022 Revision; - �tc� a 85 6.71 30623 181.10 0.00 0.00 0.00 0.00 0.00 6.88 6.88 86 6.55 30012 " 181.09 ' 0.00 0.00 0.00 0.00 0.00 6.71 6.71 87 6.39 30002 " 181 09 0.00 0.00 0.00 0.00 0.00 6.55 6.55 88 6.23 29993 18109 0.00 0.00 0.00 0.00 0.00 6.39 6.39 89 6.07 29983 181.09 0.00 0.00 0.00 0.00 0.00 6.23 6.23 90 5.92 20973 181.09 0.00 0.00 0.00 0.00 0.00 6.08 6.08 91 5.78 20064 181.09 0.00 0.00 0.00 0.00 0.00 5.93 5.93 92 5.63 29955 " 181.09 ' 0.00 0.00 0.00 0.00 0.00 5.79 5.79 93 5.50 29946 18108 0.00 0.00 0.00 0.00 0.00 5.64 5.64 94 5.36 29937 1131418, 0.00 0.00 0.00 0.00 0.00 5.51 5.51 95 5.23 29928 :: 48108" 0.00 0.00 0.00 0.00 0.00 5.37 5.37 96 5.10 :2991'9 -4,8108 0.00 0.00 0.00 0.00 0.00 5.24 5.24 97 4.97 29911 18108. 0.00 0.00 0.00 0.00 0.00 5.11 5.11 98 4.85 29903 " :. " 181 bs 0.00 0.00 0.00 0.00 0.00 4.99 4.99 99 4.73 = 29894 - 181.08. 0.00 0.00 0.00 0.00 0.00 4.86 4.86 100 4.61 29886 18107 0.00 0.00 0.00 0.00 0.00 4.75 4.75 101 4.50 29879 1810T 0.00 0.00 0.00 0.00 0.00 4.63 4.63 102 4.39 29871 181-.0 - 0.00 0.00 0.00 0.00 0.00 452 452 103 4.28 29863 181.07 0.00 0.00 0.00 0.00 0.00 4.41 4.41 104 4.17 -29856 18107- 0.00 0.00 0.00 0.00 0.00 4.30 4.30 105 4.07 20848 " 181 07 , 0.00 0.00 0.00 0.00 0.00 4.19 4.19 106 3.97 19841 181.07 0.00 0.00 0.00 0.00 0.00 4.09 4.09 107 3.87 29834 161.67 0.00 0.00 0.00 0.00 0.00 3.99 3.99 108 3.78 29827 181.07 0.00 0.00 0.00 0.00 0.00 3.89 3.89 109 3.68 29820 181.06 0.00 0.00 0.00 0.00 0.00 3.80 3.80 110 3.59 29813 " 16 .06 0.00 0.00 0.00 0.00 0.00 3.70 3.70 111 3.50 29806 181.06 0.00 0.00 0.00 0.00 0.00 3.61 3.61 112 3.42 29800 181.06 0.00 0.00 0.00 0.00 0.00 3.53 3.53 113 3.33 - 29793 181.06 " . 0.00 0.00 0.00 0.00 0.00 3.44 3.44 114 3.25 29787 181'.06 0.00 0.00 0.00 0.00 0.00 3.36 3.36 115 3.17 :20180 '18-1.06 0.00 0.00 0.00 0.00 0.00 3.27 3.27 116 3.09 -29774 181.06 0.00 0.00 0.00 0.00 0.00 3.19 3.19 117 3.02 29768 181A6 . 0.00 0.00 0.00 0.00 0.00 3.12 3.12 118 2.94 29762 1 I A6 0.00 0.00 0.00 0.00 0.00 3.04 3.04 119 2.87 29756 181.05 0.00 0.00 0.00 0.00 0.00 2.97 2.97 120 2.80 29751 181.05 ' 0.00 0.00 0.00 0.00 0.00 2.89 2.89 121 2.73 29745 " 181A5, 0.00 0.00 0.00 0.00 0.00 2.82 2.82 122 2.66 29739 181..05.. 0.00 0.00 0.00 0.00 0.00 2.75 2.75 123 2.60 29734 181 A5 . 0.00 0.00 0.00 0.00 0.00 2.69 2.69 124 2.53 29128 191.66 0.00 0.00 0.00 0.00 0.00 2.62 2.62 125 2.47 29723 191.05 0.00 0.00 0.00 0.00 0.00 2.56 2.56 126 2.41 29118 181.00 0.00 0.00 0.00 0.00 0.00 2.49 2.49 127 2.35 297113 181.05 - : 0.00 0.00 0.00 0.00 0.00 2.43 2.43 128 2.29 19768 161.05 0.00 0.00 0.00 0.00 0.00 2.37 2.37 129 2.23 29703 181.05 0.00 0.00 0.00 0.00 0.00 2.32 2.32 130 2.18 29698 181.06 0.00 0.00 0.00 0.00 0.00 2.26 2.26 131 2.13 29693 , 181.04 0.00 0.00 0.00 0.00 0.00 2.20 2.20 132 2.07 29688 1.81.04 0.00 0.00 0.00 0.00 0.00 2.15 2.15 133 2.02 29684 181.04 0.00 0.00 0.00 0.00 0.00 2.10 2.10 134 1.97 29619 191.04 0.00 0.00 0.00 0.00 0.00 2.05 2.05 135 1.92 29615 181.04 0.00 0.00 0.00 0.00 0.00 2.00 2.00 136 1.88 29670 ' 181.04 0A0 0.00 0.00 0.00 0.00 1.95 1.95 137 1.83 29666 181.04 0.00 0.00 0.00 0.00 0.00 1.90 1.90 138 1.78 29662. 181.04 0.00 0.00 0.00 0.00 0.00 1.85 1.85 139 1.74 29657 181.04 0.00 0.00 0.00 0.00 0.00 1.81 1.81 140 1.70 29663 181.04 0.00 0.00 0.00 0.00 0.00 1.76 1.76 Page 4 14.00 12.00 10.00 : 8.00 4.00 2.00 ROUTING RESULTS 1 - 10 YEAR DESIGN STORM 50 100 150 200 250 300 Time [min] tINFLOW [cis] —41--TOTALOUTFLOW [cfs] --*—PRINCIPAL SPILLWAY [cis] --(--EM. WEIR [Cis] STORMWATER RETENTION CALCULATIONS Project: PARKTON BORROW PIT MODIFICATION Job #: 40-1685 By: ART Date: 1/6/2022 Revision - STILLING BASIN 2 STAGE -STORAGE FUNCTION (ABOVE PERMANENT POOL) S Z CONTOUR ACCUM. CONTOUR AREA INCR. VOL. VOL, STAGE In S In Z Z est [FT2] [FT) [FTC] [FTI [FT] 173.00 0 0 0.0 174.00 1,818.52 909 909 1.0 6.8126 0.0000 1.10 175.00 2,373.63 1,397 2,307 2.0 7.7435 0.6931 1.87 176.00 3,000.74 2,687 4,994 3.0 8.5160 1.0986 2.90 177.00 3,¢99.86 3,350 8,344 4.0 9.0293 1.3863 3.89 178.00 4,470.97 4,085 12,430 5.0 9.4278 1.6094 4.89 179.00 5,314.08 4,893 17,322 6.0 9.7597 1.7918 5.91 180.00 6,229.20 5,772 23,094 7.0 10.0473 1.9459 6.97 181.00 7,216.31 6,723 29,816 8.0 10.3028 2.0794 8.06 182.00 8,296.23 7.756 37,573 9.0 10.5340 2.1972 9.20 183.00 9,210.52 8,753 46,326 10.0 10.7435 2.3026 10.37 184.00 10,100.16 9,655 55,981 11.0 10.9328 2.3979 11.56 Constant (y-Intercept) 6.64988 Ks = 773 Slope (X Coefficient) 1.75410 b = 1.750 Standard Error of Coefficient 0.08237 R2 = 0.99644 STAGE -STORAGE FUNCTION log -log plot 9.2000 9.0000 8.8000 8.6000 = 1.8583x + 6.4611 N 8.4000 R' = 0.9997 t Seriesl c 8.2000 -Linear Seriesl 8.0000 7.8000 7.6000 0.0000 0.2000 0.4000 0.6000 0.8000 1.0000 1.2000 1.4000 1.6000 In Z Time to Peak. T : T V 1.39•Q� Tp= 60.4 min Page 1 STORMWATER RETENTION CALCULATIONS Project: PARKTON BORROW PIT MODIFICATION By: ART STILLING BASIN 2 Peak Inflow* = 11.06 cfs Peak Unrestricted Outflow = 0.00 cfs Peak Pond Outflow* = 9.11 cfs Peak Elevation* = 181.12 ft Peak Storage* = 30151 cf Job #: 40-1685 Date: 1 l612022 Revision: - Top of Pond El. [ft] = 184.00 OKI Storage Avail.[cf] = 55981 OKI Pipe (Low -Flow Orifice): RISER N 0 Riser Type = Precast MH STORM ROUTING Cd 0.6 Dr = 0.00 in Input Data.• D 5 Etop - 0.00 ft Qp 11.06 cfs Zi 83.50 Cwr = 0 Tp 60 min Cdr - 0.6 AT 1 min BARREL EMERGENCY WEIR Ks 773 Db = 0 in Cw = 3 b 1.75 Einv = 173.00 ft Ecr = 181.00 ft Cdb = 0.6 LW = 77..5 ft LOW -FLOW RISER RISER PRINCIPAL TOTAL TIME INFLOW STORAGE STAGE ORIFICE (weir) (orifice) BARREL SPILLWAY EM. WEIR OUTFLOW [min] [cfs] [ft3] [ft] [cfs] [cfs] [cfs] [cfs] [cfs] [cfs] [cfs] 0 0.00 0 173.00 0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.01 0 173.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 0.03 0 173.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 0.07 2 173.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4 0.12 6 173.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5 0.19 14 173.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 6 0.27 25 173.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7 0.37 41 173.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 8 0.48 63 173.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 9 0.60 92 173.30 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10 0.74 128 173.36 0.00 0.00 0.00 0.00 0.00 0.00 0.00 11 0.89 172 173.42 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12 1.06 226 173.50 0.00 0.00 0.00 0.00 0.00 0.00 0.00 13 1.23 289 173.57 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14 1.42 363 173.65 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15 1.62 449 173.73 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16 1.83 546 173.82 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17 2.05 656 173.91 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18 2.28 779 174.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 19 2.52 915 174.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20 2.77 1066 174.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21 3.02 1232 174.31 0.00 0.00 0.00 0.00 0.00 0.00 0.00 22 3.28 1413 174.41 0.00 0.00 0.00 0.00 0.00 0.00 0.00 23 3.55 1610 174.52 0.00 0.00 0.00 0.00 0.00 0.00 0.00 24 3.82 1823 174.63 0.00 0.00 0.00 0.00 0.00 0.00 0.00 25 4.10 2052 174.75 0.00 0.00 0.00 0.00 0.00 0.00 0.00 26 4.38 2298 174.86 0.00 0.00 0.00 0.00 0.00 0.00 0.00 27 4.66 2561 174.98 0.00 0.00 0.00 0.00 0.00 0.00 0.00 28 4.95 2841 175.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Page 2 no 00 no no 00 0 0 0 00000 on 00 0 0 0 00 00 no 00 0 0 0 0 0 0 0 0 0 0 0 0 on e- r MO No � d O C O O O O O O O O O O O c6 6 a0 c6 OD c6 cC N 0 00 no 00 noon 00 0 0 0 0000000 00 on 00 00 o d 00 00 no 0 0 0 0 0 0 0 0 M O N O et 0 0 0 0 0 0 0 0 o c o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o d o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o r• N e w co � N .- rn 0 0 0 66 0 0 0 0 o c o 0 0 0 0 o c o 0 0 0 0 0 0 0 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1: 00 of 00 06 cD 00 00 1: 0000000000000000O00000000000000000000000000O000000000000 0000000000000coc0000000000000000000c00000000c000c0000000 O N 0 a a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a a 0 a a o 0 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 oC v c � o 0 0 0 0 0 0 0 0 0 o d a a a a 0 d o 0 0 0 0 0 0 0 o a a a a o o ca o o a o o ca o 0 0 0 0 0 0 0 0 0 00 0 o a o �+ o0000000000000000000000000000000000000000000000000000000 o Cm c o 0 o c c c o 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 0 0 0 0 o c o 0 0 0 0 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a o 0 o a 0 d o o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a o 0 0 0 0 o a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o d 00000000000000c0000000000000000000000000c000000000000000 000000000000000O00000000000O00000000000000000000000000Oo 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o d o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O o 0 0 0 00000000000000000000000000000000000c000000000c0000000000 Z O M O o0 d ti O M h O tt h r .W)O>' MAD O M h .O. 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CONTOUR AREA INCR. VOL. VOL. STAGE In S In Z Z est 173.00 0 0 0.0 174.00 1,818.52 909 909 1.0 175.00 2.373.63 1.397 2,307 2.0 176.00 3,000.74 2,687 4,994 3.0 177.00 3,699.86 3,350 8,344 4.0 178.00 4,470.97 4,085 12,430 5.0 179.00 5,314.08 4,893 17,322 6.0 180.00 6,229.20 5,772 23,094 7.0 181.00 7,216.31 6,723 29.816 8.0 182.00 8,296.23 7,756 37,573 9.0 183.00 9,210.52 8,753 46,326 10.0 184.00 10,100.16 9.655 55,981 11.0 Constant (y-Intercept) 6.64988 Slope (X Coefficient) 1.75410 Standard Error of Coefficient 0.08237 RZ = 0.99644 9.2000 9.0000 8.8000 8.6000 rn 8.4000 c 8.2000 8.0000 7.8000 7.6000 6.8126 0.0000 1.10 7.7435 0.6931 1.87 8.5160 1.0986 2.90 9.0293 1.3863 3.89 9.4278 1.6094 4.89 9.7597 1.7918 5.91 10.0473 1.9459 6.97 10.3028 2.0794 8.06 10.5340 2.1972 9.20 10.7435 2.3026 10.37 10.9328 2.3979 11.56 Ks = 773 b = 1.750 STAGE -STORAGE FUNCTION log -log plot R' = 0.0000 0.2000 0.4000 0.6000 0.8000 1.0000 1.2000 1.4000 1.6000 In Z Time to Peak. 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WEIR [cfs] CV , Project: PARKTON BORROW PIT MODIFICATION Job #: 40-1685 By: ART Date: 1/11/2022 Revision: - BASIN 4 STAGE -STORAGE FUNCTION (ABOVE PERMANENT POOL) S Z CONTOUR ACCUM. CONTOUR AREA [NCR. VOL. VOL. STAGE In S In Z Zest 173.00 0 0 0.0 174.00 6,429.33 3,215 3,215 1.0 175.00 7,753.22 4,728 7.942 2.0 176.00 9,149.05 8,451 16,393 3.0 177.00 10,616.83 9,883 26,276 4.0 178.00 12,156.55 11,387 37,663 5.0 179.00 13,768.22 12,962 50.625 &0 180.00 15,451.83 14,610 65,235 7.0 181.00 17,207.40 16,330 81,565 8.0 182.00 18,972.99 18,090 99,655 9.0 183.00 20,690.89 19,832 119,487 10.0 184.00 22,850.61 21,771 141,258 11.0 Constant (y-Intercept) 7.97115 Slope (X Coefficient) 1.60414 Standard Error of Coefficient 0.05345 R2 = 0.99820 R 10.4000 10.2000 10.0000 9.8000 9.6000 9.4000 9.2000 9.0000 8.8000 0.0000 Time to Peak. T : T v ° 1.39•Q� 8.0755 0.0000 1.07 8.9799 0.6931 1.88 9.7046 1.0986 2.95 10.1764 1.3863 3.97 10.5364 1.6094 4.97 10.8322 1.7918 5.98 11.0858 1.9459 7.01 11.3092 2.0794 8.05 11.5095 2.1972 9.13 11.6910 2.3026 10.23 11.8583 2.3979 11.35 Ks = 2896 b = 1.600 STAGE -STORAGE FUNCTION log -log plot 0.2000 0.4000 0.6000 0.8000 1.0000 1.2000 1.4000 1.6000 In Z Tp = 127.3 min t Seriesl -Linear Sedesl Page 1 O Q LL F5 O a 3-0 m Z z n¢. Q � a z J .O J Ua`m N a gip` o ?.,'aN w U U w V 4= �L O oo Lo 0I0I c Uca LO(vi co y 3 �$ 0 O Z 0 IV CO o� o. MooQOo Van to 0 0 0o 0 r a CO r r O (� II If rl Ir 3 * c m 0 0 M W E: Y 0 0 S y w'cC a CISW O N ,Y °rc.Yev �rn 4- ca 4 a ari a a a � W L � � r C �a is a M � N r' z :D a CL �-- 0 b a �- wa ea O� H = U _ J 0 J Ou� 0 o. LO CO : co 2w J z n n n w w W U W J w _N R O C a co .. 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Project: PARKTON BORROW PIT MODIFICATION Job #: 40-1685 By: ART Date: 1 /11 /2022 Revision: - STILLING BASIN 4 141 7.31 34732 177.72 0.00 0.00 0.00 0.00 0.00 0.00 142 7.27 35171 _ -177,76 0.00 0.00 0.00 0.00 0.00 0.00 143 ;7.24 35607 177.$0. 0.00 0.00 0.00 0.00 0.00 0.00 144 7.20 36042 177.83 0.00 0.00 0.00 0.00 0.00 0.00 145 7.16 36474 177.87 0.00 0.00 0.00 0.00 0.00 0.00 146 7.12 36903 177.91 0.00 0.00 0.00 0.00 0.00 0.00 147 7.08 37331 177.94 0.00 0.00 0.00 0.00 0.00 0.00 148 7.03 37755 177.98 0.00 0.00 0.00 0.00 0.00 0.00 149 6.991 38177 178.01, 0.00 0.00 0.00 0.00 0.00 0.00 150 6.94. 38597 .178.05 0.00 0.00 0.00 0.00 0.00 0.00 151 5.89 `_ 39013 479.08 0.00 0.00 0.00 0.00 0.00 0.00 152 6.83 39420 . ; 178.14 . 0.00 0.00 0.00 0.00 0.00 0.00 153 6,78 39836 178.15 : `: 0.00 0.00 0.00 0.00 0.00 0.00 154 6.72 40243 .. " 178,,18 0.00 0.00 0.00 0.00 0.00 0.00 155 = 6.66 .. 40646 , : 178.91 0.00 0.00 0.00 0.00 0.00 0.00 156 ,` 6.60 410d6 178.24 0.00 0.00 0.00 0.00 0.00 0.00 157 654 41442 -` : 178.28 0.00 0.00 0.00 0.00 0.00 0.00 158 6.48 41834 : 178.31 0.00 0.00 0.00 0.00 0.00 0.00 159 <4 *:6.42 42223 17$.34. OAO 0.00 0.00 0.00 0.00 0.00 160 635 42608. 17837 0.00 0.00 0.00 0.00 0.00 0.00 161 6,29 42989 ' 178.!0 ' : 0.00 0.00 0.00 0.00 0.00 0.00 162 6.22 43366 178.43 . _ ` 0.00 0.00 0.00 0.00 0.00 0.00 163 :6.16 43740..: 178.46 . ' 0.00 0.00 0.00 0.00 0.00 0.00 164 `_ :610 44110�`...' 'l78.49 0.00 0.00 0.00 0.00 0.00 0.00 165 6.04 44475 1.78.51 0.00 0.00 0.00 0.00 0.00 0.00 166 .'5.97 , 44838 : 178.54 ` 0.00 0.00 0.00 0.00 0.00 0.00 167 5.91 45196 178.57., 0.00 0.00 0.00 0.00 0.00 0.00 168 :5.85 45551. 178.60 0.00 0.00 0.00 0.00 0.00 0.00 169 5.79 . 45902 " 178.62 _: 0.00 0.00 0.00 0.00 0.00 OAO 170 5.74 46250 178.65 : 0.00 0.00 0.00 0.00 0.00 0.00 171 5.68 46594 . - ' 178.68 0.00 0.00 0.00 0.00 0.00 0.00 172 5.62 46935 178.70 0.00 0.00 0.00 0.00 OAO 0.00 173 °" ' 56 47272 178.73 0.00 0.00 0.00 0.00 OAO 0.00 174 5.51 47605:. ..178.75 0.00 0.00 0.00 0.00 0.00 0.00 175 5.45 47936 17838 0.00 0.00 0.00 0.00 0.00 0.00 176 5.39 48263. ` ' 178.80 0.00 OAO OAO 0.00 0.00 0.00 177 : 5 34 48586 118A3 0.00 0.00 0.00 0.00 0.00 0.00 178 5.28 48907': 178,85 OAO 0.00 0.00 0.00 0.00 0.00 179 5.23. 49224 ; 1.78.87 - 0.00 0.00 0.00 0.00 0.00 0.00 180 5.18 49537 178.90. 0.00 0.00 0.00 0.00 0.00 0.00 181 �' _ 5.12 49848 178.92 0.00 0.00 0.00 0.00 0.00 0.00 182 5.07 501-56 178.94 0.00 0.00 0.00 0.00 0.00 0.00 183 5.02 50460. 178.97 0.00 0.00 0.00 0.00 0.00 0.00 184 4.97 50761,: 178.99 0.00 0.00 0.00 0.00 0.00 0.00 185 - - 4.92 5105.9 179.01 0.00 0.00 0.00 0.00 0.00 0.00 186 :.. 4.87 51354 " 179.03 0.00 0.00 0.00 0.00 0.00 0.00 187 ;" 4.82 51647" 179.05 0.00 0.00 0.00 0.00 0.00 0.00 188 4.77 51936 ` : 179.07 0.00 0.00 0.00 0.00 0.00 0.00 189 . " '4.72 52222 . 179.10 0.00 0.00 0.00 OAO 0.00 0.00 190 : 4.67 52505 " 17912 0.00 0.00 0.00 0.00 0.00 OAO 191 4.63 52786 . ` 179.14 0.00 0.00 0.00 0.00 0.00 0.00 192 4.58 53063. 119.16 0.00 0.00 0.00 0.00 0.00 0.00 193 4.53 53338 179618 0.00 0.00 0.00 0.00 0.00 0.00 194 4.49 53610 - 179.20 0.00 0.00 0.00 OAO 0.00 0.00 195 4.44 53879 '.- 179.22 0.00 0.00 0.00 0.00 0.00 0.00 196 4.40 54145 179.23 0.00 0.00 0.00 0.00 0.00 0.00 Page 5 0 o A o 0 0 0 0 o A o 0 0 0 0 0 0 o A o 0 0 o A A o 0 0 o ca d o 0 0 0 o A o 0 0 0 0 0 o A o o d o 0 o A o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o d o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O O O O O o 0 0 0 0 0 A A 0 0 0 0 0 0 a A A 0 0 0 0 A A o 0 0 0 A A A o 0 0 0 A 0 0 d o 0 0 0 0 o O A A O A A 0 00000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000 000000000A000000000000000000000000000000000000000000000A 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o v o 0 0 0 o v o o d o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0000000000000c000000000000000000000000000000000000000000 N U-) N O O O O O O O O O O O O O O O O O O O A O O O O O A O O O O a A 0 0 0 0 A A 0 0 0 A o 0 0 A 0 0 0 0 0 0 0 0 0 0 � N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o ci o 0 0 0 0 0 0 o co 0 0 0 o co 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o ci o 0 0 0 0 0 0 0 0 v� v c o .N'� o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o c o 0 0 o co 0 0 o c o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o ca o 0 0 0 0 o A o A o 0 0 0 0 0 o A o 0 0 0 o A o 0 0 0 o A o 0 0 0 0 0 0 0 0 0 0 0 o A o 0 0 0 0 o c7 a o A 0 0 0 0 o a o o d o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o a o 0 0 000000000000c00000000c0000a00000000000000000000000000000 A ca a o 0 o A A o 0 0 0 0 0 0 o A o 0 0 0 0 o A d o 0 0 o A A o 0 0 o d o A o 0 o a o 0 o A d a o 0 0 o A o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o v o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0000000000000000000000000000000000000000000000000000000a z It�hMrMMtOOOOr WCo O'rCO) to.l`MOtVCO) 900000MONMd''toh00MNM cohcoa)C) cm to to w0)C)e-N Q N . 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MV t'7viV;viMM,Mtrf;-MMV;MMviMM6MMMMt'rlV;C4MC4tVC4NNNNNNNNN9VtVNNC4C4C4N � � Z a Q cn Q CO Zf- Op dI O e- N th d tf� tG t` C1D M O e- N M �} lq (D 1` OD O O N M O tD I� t!p O O r N C7 l�7 O h 00 O O N M ll7 CU I` 00 W O N v(Lm U) CD w rn m a 8.00 7.00 6.00 5.00 m 4.00 m L u N 3.00 2.00 1.00 0.00 ROUTING RESULTS 4 - 10 YEAR DESIGN STORM 0 100 200 300 400 500 600 Time [min] --*—INFLOW [cfs] tTOTAL OUTFLOW [cfs] — PRINCIPAL SPILLWAY [cfs] —x—EM. WEIR [cfs]