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_ -- -------------------------_,`., 140TH STRE T N kk I MAX FUT. IMPERVIOUS: 1.27 AC I EXISTING i I INFILTRATION 1 BASIN i� / / / ll PROPOSED OFFICE I �� EXISTING I / OUTLOT A I + WAREHOUSE ¢ I INFILTRATION I (22,580 S.F.) \\ BASIN i FUTURE COLD A 11 \ I j STORAGE 1 — (37,420 S.F.) — I EXISTING P P. IMPERVIOUS: 1. Aa I EXISTING j WETLAND I RRETREAT Ew'I \ II I I I I J I \I I I I ------------- I II II u �� II II I I ---,r----- r --- I II i ii iii I I EXISTING OUTDOOR RAW —— — — — — — — — — —I MATERIALS STORAGE I I � I I --- I 2 EXISTING WETLANDS /I ll I I / I I I I I I I I I I I I I I I EXISTING PRETREATMENT POND I I I I I I I I I I I I II II II II I\ I� I I I I I I I EXISTING MANUFACTURING/ WAREHOUSE BUILDING (144,000 S.F.) EXISTING OUTDOOR FINISHED PRODUCT STORAGE 229 SPACES DVIDED ONLY )UIRED BY CI' i I I I I \140TH STREET N I _ I I ll III II I I j I I I I I I II IIIII I � jcr it I \i i I— I I it I� I I I � i I i I I �I •I I I 0 l I Q J O i m 3 Z W L` CAMPUS STORMWATER NOTES 1. LOT 1, BLOCK 1 ORIGINALLY DESIGNED FOR 1.17 ACRES OF IMPERVIOUS SURFACES. CURRENT PROPOSED PLANS CONTAIN APPROXIMATELY 1.39 ACRES OF NEW IMPERVIOUS SURFACES- 2 . THE FUTURE COLD STORAGE EXPANSION, AND ALL RELATED FUTURE IMPERVIOUS, ORIGINALLY DESIGNED FOR 1.49 ACRES OF IMPERVIOUS SURFACES, PROPOSED PLANS SHOW A FUTURE LAYOUT MATH 1.27 ACRES OF IMPERVIOUS SURFACES. 3. TO ACCOMMODATE FOR THE INCREASE OF IMPERVIOUS FROM LOT 1, THE FUTURE COLD STORAGE AND ALL RELATED IMPERVIOUS LAYOUT HAS BEEN REVISED TO REDUCE THE IMPERVIOUS SURFACE AREA. ULTIMATELY THE TOTAL CAMPUS PERVIOUS SURFACE AREA WILL BE CONSISTENT NTH THE ORIGINAL STORMWATER DESIGN. IMPERVIOUS SUMMARY ORIGINAL DESIGN PROPOSED LOT 1 1.17 AC. 1.39 AC. FUT. COLD STORAGE 1.49 AC. 1.27 AC. TOTAL 2.66 AC. 2.66 AC. N 0 30 60 120 (IN FEET) BENCHMARKS 1, Top Nut of Hydrant located pp'— 120 ft. northwesterly northwest comer of the existing building, as shown. Elevation = 932.85 ft. 2. Top Nut of Hydrant located at the southeast corner of 140th Street N. and Fenway Boulevard N. Elevation = 934.51 ft. 0 In G>W O1 0° O• 0 N ILA M �� y ZO z —CO) X O Z � C LL VW�m� V ^ 0 0 `QGO�� M w 0 O t a Z 0 H �y m o _ 0 Q W c W a �m cLLI7 L FI = Q 3 U = U U J J (� z Z a, ~ C 00 N O J Q In 0 In _ D z 0 C � Z LL 01 QL J N 2 rn rn H U 5 9 REVISIONS g 1. 6/23/20 Issued For Permit m t 2. 7/30/20 Per City Comment 3. 7/28/20 Addendum 2 E 4. 8/19/20 Per City Comment 5. - 6. 6 DRAWN BY: KRO DESIGNED BY: WK ISSUE DATE: 6/23/2020 B a I hereby certify that Nis plan, speci0"d" o r report was prepared by me or urMer my direct supervision and that I a a tluly C Licensed Professional Engineer under the laws of the State of Minnesota - Name: Brian J. KrystoHa,k', �P.E'. A Signature: a 2 !S— s Date:6/23/2020 Ucense #: 25063 8 LofC12 Al2