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P E R K I N <br /> + W1 <br /> 1 I I-I I L . ` / / / �° Z I ( = - -_- �I. LI.- -'- � - ( �j- 84 10th St.South <br /> \\ I 1 Suite200 <br /> Minneapolis,MN 55403 <br /> ,-,- / i _ - --- <br /> III )\ ) 1 I \ y°--�( // I ( ( I �\ \� � �, // �, / \^ - /\ I t612.851.5000 <br /> / \ / 1 r� <br /> f 612.851.5001 <br /> www.perkinswill.com <br /> I ` / / /// \ \ \\ \ \ CONSULTANTS <br /> t <br /> \- <br /> 1 \ \ y / r \ \\ \ I \ \ Y- <br /> I \\ Atl__� / 111 I / /�II ✓r n I / / � \ / \ \ \ // CIVIL/STRUCTURAL <br /> \ I i N / /l \ \\ \ \ \ �„ �� �\ \ ij/_ _ I f EXISTING DRAINAGE AREAS l ( I111�(I / I f/ I ( \ \ - - \ / Q OUT (CFS) STORM EVENT <br /> I / I /\ / / ( \ \ \ \\ \ \ \\ \ \ \ \\ ) \ / I I IMPERVIOUS AREA PERVIOUS AREA TOTAL AREA <br /> DRAINAGE AREA 2-YEAR 10-YEAR 100-YEAR <br /> I.I (ACRES) (ACRES) (ACRES) (2.81") (4.20") (7.32") ROUTING <br /> ( , / - _ -rt /l / / \ I \ i �/ I \ \ \ J✓ /r \ \ \ \ \\ \\ _ I (/� 1 2.32 8.50 10.82 17.96 35.46 72.99 SHEET FLOW TO SOUTHWEST WETLAND BKBM <br /> -oil <br /> �/ _T /�� + ( 1 �� // / Y \'� \ I\ \ / / \ / - �►� \�� \`` /� / I l r I 2 6.82 2.15 8.97 23.06 36.37 61.81 SHEET FLOW TO NORTHEAST CB <br /> I 1 1 , ' l� / / - - -' ✓ \ I l ( / I /i \\ \ �� \\ / -/ �\ \\` N- / %/• / ENGINEERS <br /> / / / 3 0.00 0.39 0.39 0.50 1.19 2.71 SHEET FLOW TO COUNTY RD F WEST <br /> TOTAL 9.14 11.04 20.18 1 41.52 73.02 1 137.51 <br /> 1 ' . l C� 1I I ` I �. "»�'� .•., \ I ° _ / \ - - \\\ \ \ \ 5930 Brooklyn Boulevard <br /> •• \ ) �, \\ \ • Minneapolis, MN 55429-2518 <br /> 1 I I ' ® \ \ I \ \ \ / .�-- �� \ / / 1/ //// //// I (763) 843-0420p Fax: (763) 843-0421 <br /> I / /ii/ - www.bkbm.com <br /> / PROPOSED DRAINAGE AREAS <br /> /' {I I I `1 1 \ l• I( \ \ I 4 \\ \ ,\\ \ - _ \ I I Z I \\ `; / / `- // / /%/ 'f�/ / ( r J IMPERVIOUS AREA PERVIOUS AREA TOTAL AREA Q OUT (CFS) STORM EVENT <br /> Ir /� �/f �/ � DRAINAGE AREA (ACRES) (ACRES) (ACRES) 2-YEAR 10-YEAR 100-YEAR ROUTING <br /> \ / (2.81") (4.20") (7.32") MICHAUD COOLEY <br /> / / � I • I, , � \ I I n - / I ,� \ \ \ \ � \ \ � J / / � j l / \ � � � � 1 5.24 1.56 6.80 - - - SHEET FLOW TO WEST FILTRATION TANK ERICKSON <br /> \1 / / �- ` �•''' �� 2 6.97 1.18 8.15 - - - SHEET FLOW TO EAST FILTRATION TANK 333 SOUTH SEVENTH STREET,SUITE 1200 <br /> 3 1.16 0.13 1.29 - - - DRAINS TO EAST FILTRATION TANK MINNEAPOLIS,MN 55402 <br /> \ 4 OA1 0.24 0.25 0.33 0.75 1.70 SHEET FLOW TO COUNTY RD F WEST www.michaudcooley.com <br /> 5 0.44 0.28 0.72 2.17 3.54 6.20 SHEET FLOW SOUTH TO ON-SITE DRAINAGE POND P:612.339.4941 <br /> ( /� / / -- �I i� J� I ( I r\ '� ( � , `► \\\ \ \ I \\ \ f / / -- - //�-n - < 6 0.19 2.54 2.73 3.96 8.74 19.25 SHEET FLOW TO SOUTHWEST WETLAND <br /> t 7 0.00 0.24 0.24 0.30 0.72 1.65 SHEET FLOW TO SOUTHWEST WETLAND <br /> ( / I I I , l \ \ \ \\\ '� `\ \ \\ \ \ \ \ \ l �/S // ///// / // // / ( EAST FILTRATION TANK - - - 0.61 3.67 41.09 OVERFLOW TO ON-SITE DRAINAGE POND <br /> ° f �'�i o✓J l WEST FILTRATION TANK - - - 0.42 1.89 29.82 OVERFLOW TO SOUTHWEST WETLAND <br /> ._ \ \ \\ \ \ \ \ \ ( / / / // // / �'"` TOTAL 14.01 6.17 20.18 7.79 19.31 99.71 <br /> ��� r \ �� � It \ a � 11 I 14 --- _ _ -�. \ � ., s (-.` � �. I \ �.'-\ < \ t / �►• / / //�/ <br /> STORMWATER RUNOFF SUMMARY <br /> -�.. 2-YR STORM (2.81") 10-YR STORM (4.20") 100-YR STORM (7.32") <br /> \��;.���. \ \ � / \\ ~.r-/f I 1 .• �' //�i �i�/''/�/i //i \ RUNOFF (CFS) RUNOFF (CFS) RUNOFF (CFS) <br /> EXISTING SITE 41.52 73.02 137.51 <br /> \ , \ \`.� \ \ I 1 _.,� <br /> C I \` - \ \\ \ `l \ \� f \)III I / \ '----- �� / // // / j j//�//,�/jam \\\ ( 20% REDUCTION FROM EXISTING 33.22 58.42 110.01 <br /> o <br /> PROPOSED SITE 7.79 19.31 99.71 <br /> .0 l ' ,°'", I �I� �� \\ �I 1 1 I � I ,� \,� <br /> \\\\ 1 \ I \ \ 1 I I I - � I ( / / / I// 1 ( IIII I I I I I f `�\)\}►1( l�1 <br /> I C� \\\1} { )11/ II��' \\�\ Illf I1 / ' �,.� -_-___ I I I I ' ( III I N I II PUD <br /> 1 ----- --.�/ } I ,S / IIII 11 1 ( I III II / I III <br /> 11 �."�/ lfAlpdABAEM 1 I 1111 II �4L 1 ( ( III I1 I �"° J)I/I/ Ill <br /> \ �►I \ \ / APPLICATION <br /> cc <br /> MAY 02, 2016 <br /> Fri <br /> NOT FOR <br /> 1 EXISTING CONDITIONS - PHASE TWO 80' 40' 0 80' 160' CONSTRUCTION <br /> C05-0 1 = 80 <br /> SCALE 1' = 80' <br /> LAND O'LAKES <br /> HEADQUARTERS <br /> , `_ _ CONSOLIDATION <br /> - - - - ONC TE ��\ C <br /> • EA <br /> C <br /> C� <br /> CC <br /> � ax.• <br /> C77 <br /> CC <br /> C I �/ <br /> I <br /> C C � <br /> C 'I{ (� I (' <br /> V 1�J C I L <br /> C / <br /> NC ... <br /> �C Coy , . _ ' LAND O'LAKES <br /> cc <br /> 4001 Lexington Ave N. <br /> `; = °• °° _ Arden Hills, MN 55126 <br /> All I C C111 S KEYPLAN <br /> t <br /> C ', CCC <br /> f I t e I y <br /> ( - 3 <br /> r- ; PNPM aaumc <br /> I I Mh00/9iLM <br /> ns am <br /> a <br /> .1 \ F. I� e mw <br /> NEW <br /> s CC ,. Cj <br /> ISSUE CHART <br /> C C <br /> MARK ISSUE DATE <br /> t ABBREVIATIONS <br /> __ _ i' BLDG Building <br /> C ,' i ��/ BMP Best Management Practice <br /> BW Bottom of Wall <br /> C I CB Catch Basin <br /> 'C I I a -- j CONC Concrete <br /> i "o ELEV Elevation <br /> .. I ! I. __ ____ �'` i � •� EX Existing <br /> I I <br /> FFE Finished Floor Elevation <br /> CC C L---- " I herebycertify that this Ian, <br /> INV Invert or report was prepared b me or under <br /> HWL High Water Level pspecification <br /> a '� � p p p Y <br /> - C MAX Maximum my direct supervision and that I am a duly <br /> _- _ - MH Manhole Licensed Professional Engineer under the <br /> w � � \ ® �c. MIN Minimum 9 <br /> MPCA Minota Pollution Control laws of the state of Minnesota. <br /> t Agency <br /> ��� C `t"Mr � National Pollutant Discharge <br /> C ! `c NPDES Elimination System <br /> C CCNWL <br /> C C �..•v CC PVC Polyvinyl lwChloridevel <br /> KEVIN A.BOHL <br /> °°,,, (; C RCP Reinforced Concrete Pipe Date 05-02-2016 Lic.No. 52209 <br /> rC� c C r7l .. .� ..... r r• `r TW Top of Wall <br /> W.O. Washout Job Number 15401 <br /> Drawn WH-NA <br /> 2 PROPOSED CONDITIONS - PHASE TWO Checked TJC <br /> C05-0 1 = 80 MINIMUM ESTIMATED QUANTITIES FOR Approved KAB <br /> EROSION CONTROL - PHASE TWO STORM WATEIZTITLE <br /> ITEM DESCRIPTION ESTIMATED <br /> QUANTITY POLLUTION <br /> DRAINAGE STRUCT. INLET FILTER 57 EACH <br /> ROCK CONSTRUCTION ENTRANCE 3 EACH PREVENTION PLAN <br /> CONCRETE WASHOUT 1 EACH <br /> SILT FENCE 4159 LF . PHASE TWO <br /> EROSION CONTROL BLANKET XX SY <br /> EROSION CONTROL MAT 0 SY <br /> SHEET NUMBER <br /> NOTE: QUANTITEIS SHOWN ARE THE MINIMUM n:i <br /> REQUIRED, ADDITIONAL QUANTITIES MAY BE NEEDED IFC05=02 <br /> REQUIRED BY THE MPCA, WATERSHED DISTRICT, OR <br /> CITY. CONTRACTOR IS RESPONSIBLE FOR FINAL <br /> DETERMINATION OF QUANTITIES PRIOR TO <br /> CONSTRUCTION. <br /> Copyright©2014 Perkins+Will <br />