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Home My WebLink About2001-04-18 LSCVWD Permit #01-03 & LetterAPR 3 0 2001 LOOP' April 18, 2001 DI}DLLC 3R8B Layton Avenue North Lake Elmo, MN 55042 Re: ]DD LLC — -Ock Park Heights Minnesota I}earDI}I] LLC: Enclosed ba the Lower St. Croix Valley Watershed District known ae Valley Branch Watershed permit for your project. Please note the following conditions imposed b the Managers, which are also listed oo the back of the permit. l. Erosion controls shall bo Installed prior tothe commencement of operations and be maintained throughout the construction period until turf baestablished. Additional erosion controls may be required os determined by the LSCVV� Engineer orInspector durin construction. 2. Disturbed areas should be seeded and mulched within 14 days of final grading. 3. Riprap sizing, calculations should be submitted that show the r1prap is large enough to handle discharges uptothelOO-yeorcriticalstornooveot. 4. The detail of the proposed concrete flumes shall be revised to show the geotextile fil material keyed into the ground. Iheriprap should not be grouted. G. A maintenance agreement, which addresses pond maintenance, sweeping, sediment removal and disposal, etc. shall besubmitted. G. The LSCVWD Engineer and/or Inspector shall be notified at least three days prior to commencement of work to schedule an inspection of the project's erosion controls. The erosion controls must be in place and properly installed before grading may commence. 7. Drainage euoecuonto shall be granted to the City of Oak park Eloigbte vvbicb cover land adjacent to the ponding area up to its 100-year flood elevation and which cover all ditches and storm sewers. Access easements to these drainage easements shall also be granted to Oak Park 7`bmCityo[Qo� I f{ei�bt��D �bm�u��ooaible1bral1zoaiuteou�c� ]� within drainage easements. The lOO-year flood elevation for the sturcnnrater pond onthe site ia Elevation 340.3feet. 8. The minimum building elevations for all buildable lots in the development shall berecorded in a Declaration of Covenants and Restrictions or on the final plot. The minimum building elevation for the lot io Elevation B42-3feet. D. The deed shall state existence of drainage easements and wetlands were applicable. ]8. This permit is not transferable. Il. This permit is subject to obtaining all other permits required by governmental agencies having jurisdiction (including NPDESPornzid. 12. The applicant is responsible for removal of all erosion control measures including silt fence and hay bales upon establishment of permanent vegetation at the project site as determined by the I,BOVWU Engineer orInspector. VALLEY BRANCH WATERSHED DISTRICT P.O. BOX 838 LAKE ELMo MINNESOTA s05o42-0-3:o onoLLo April /8,ono1 Pa 2 13. The applicant should attempt to include aa many oCthe following as possible into the site design and construction: a. ProvidenoIythezuinioznmoozoberofparbingetalls- b- Store plowed snow io pervious areas. c. Require the contractor to loosen soils toa depth o[24 inches toamaximum compaction of 8596 standard proctor density prior to plant and add compost tothe soil during the loosening efforts. d. Require the contractor to till the upper l0 inches of soil prior toplanting. e Reduce the length of parking stalls from. 20 feel to 18 feet (against city ordinance). f. Propose 3O96of the parking stalls for compact vehicles and making those stalls smaller. g. Use infil islands at the parking lot (depressing the island between the. building instead of raising id. h. Direct roo{toprunoi� to pervious areas. i. Plant trees that will canopy over the impervious surfaces. j. Plant deep-rooted traoo shrubs, wildflowers, and grosses. k- Oradethoparkinglotatooheatflovvtovogetativn -fi|terstripo. 14. The pond outlet shall be modified to maintain the existing 2 . ]U- and 180'yeorpeak discharges leaving the site. This can be done by changing the outlet toaIS-inchdiameter pipe with a 4'incb diameter orifice at the bottom of a plate that iaO.3 feet high. The emergency overflow shall be raised to Elevation 84D.3feet. Thank you for your cooperation with the District's permit program. Sincer cer Aviduche(ek., President Lower St. Croix Valle Watershed District Enclosure o: Donald Scheel, LSC\nWl]Secretary Ray Marshall, LSC\/WDAttorney Karen Schultz, LSC\rWD Recording Secretary Susan Gustafson, Barr Engineering Company Ray Roenzzoich Jay Micbelo,Mf`OA Tom Melena City Administrator Karen Sbimon, City Engineer De|eHozuutb, MDNR Jim Butler, Building Inspector 2382020\390009 -1 Valle Branch Watershed District Permit Application for Approval of a Project Penn it No. 01-03 An escrow deposit shall accompan this permit, unless waived b the Board of Mana (Governmental Bodies are not re to pa a fee). Applicant acknowled familiarity with the Rules and Re of the Valle Branch Watershed District. Send Permit Applications to: Valle Branch Watershed District do Barr En Co. 4700 West 77th Street Minneapolis. MN 55435-4803 Propert Owner 7 ) - L L - 4, C� Address 2-4!�-'-576 Permit Applicant L,5 A-1 Address -3- K nature of A nt e- Pff - z 8 e " > Phone 6'T Z 7 L�.. I Phone I r 7 7 2ZS Date /9, 7 /6 r Note: The a assumes all responsibilit for compliance with permit conditions- Pro Name Address . 2, o19A I - - Le L 21 j ULcc Township Ran Nearest ma street intersection " In the municipalit or Township of C) 4 K Lq-LIa CdT Purpose of Pro L L f l 22A.k Attached are plans for supportin documents for: Floodplain Development I - Use and/nr A roproo .pr iation of Puebft Water Brid & Culvert Construction Wetland Alteration Riparian Improvement-Shoreline Setback Private Draina S Other. Explain S 31S Estimated Corn Time 8 Start of Project: d C L6–z-f–)l — z Is an environmental assessment or environmental impact statement bein prepared for this pro To be completed b 2CL—. Need Application Fee $800 Received 3/27 /01 Cash Surety $ 2 !p 000 Received A -A 12. 2Q.0 See Reverse for Conditions of Approval or Reasons for Denial Land Development Runoff Water Quality Site Draina Erosion Control Floodplain Development I - Use and/nr A roproo .pr iation of Puebft Water Brid & Culvert Construction Wetland Alteration Riparian Improvement-Shoreline Setback Private Draina S Other. Explain S 31S Estimated Corn Time 8 Start of Project: d C L6–z-f–)l — z Is an environmental assessment or environmental impact statement bein prepared for this pro To be completed b 2CL—. Need Application Fee $800 Received 3/27 /01 Cash Surety $ 2 !p 000 Received A -A 12. 2Q.0 See Reverse for Conditions of Approval or Reasons for Denial 11 ey Branch Watershed I . r.. ., Permit No. 01 -03 Permission is granted to do the work proposed in accordance with the Rules and Regulations and Water Management Plan of the District; subject to the following provisions: 1. Erosion controls shall be installed prior to the commencement of operations and be maintained throughout the construction period until turf is established. Additional erosion controls may be required as determined by the LSCVWD Engineer or Inspector during construction. 2. Disturbed areas should be seeded and mulched within 14 days of final grading. 3. Riprap sizing calculations should be submitted that show the riprap is large enough to handle discharges up to the 100 -year critical storm event. 4. The detail of the proposed concrete flumes shall be revised to show the geotextile filter material keyed into the ground. The riprap should not be grouted. 5. A maintenance agreement, which addresses pond maintenance, sweeping, sediment removal and disposal, etc., shall be submitted. 0. The LSCVWD Engineer and/or Inspector shall be notified at least three days prior to commencement of work to schedule an inspection of the project's erosion controls. The erosion controls must be in place and properly installed before grading may commence. 7. Drainage easements shall be granted to the City of flak Park Heights which cover land adjacent to the ponding area up to its loo -year flood elevation and which cover all ditches and storm sewers. Access easements to these drainage easements shall also be granted to Oak Park Heights. The City of Oak Pay!, Heights shall be respons:lzle for all maintenance within drainage easements. The 100 -year flood elevation for the stormwater pond on the site is Elevation 940.3 feet. S. The minimum building elevations for all buildable lots in the development shall be recorded in a Declaration of Covenants and Restrictions or on the final plat. The minimum building elevation for the lot is Elevation 942.3 feet. 9. The deed shall state existence of drainage easements and wetlands were applicable. 10. This permit is not transferable. 11. This permit is subject to obtaining all other permits required by governmental agencies having jurisdiction (including NPDES Permit). 12. The applicant is responsible for removal of all erosion control measures including silt fence and hay bales upon establishment of permanent vegetation at the project site as determined by the LSCVWD Engineer or Inspector. 13. The applicant should attempt to include as many of the following as possible into the site design and constr uctioxl: a. Provide only the minimum number of parking stalls. b. Store plowed snow in pervious areas. c. Require the contractor to loosen soils to a depth of 24 inches to a maximum compaction of 85% standard proctor density prior to planting and add compost to the soil during the loosening efforts. d. Require the contractor to till the upper 10 inches of soil prior to planting. e. Reduce the length of parking stalls from 20 feel to 18 feet (against city ordinance). f. Propose 30% of the parking stalls for compact vehicles and making those stalls smaller. g. Use infiltration islands at the parking lot (depressing the island between the building instead of raising it) . h. Direct rooftop runoff to pervious areas. i. Plant trees that will canopy over the impervious surfaces. j. Plant deep- rooted trees, shrubs, wildflowers, and grasses. k. Grade the parking lots to shoot flew to vegetative filter strips. 14. The pond outlet shall be modified to maintain the existing 2 -, 10 -, and loo -year peak discharges leaving the site. This can be done by changing the outlet to a 15 -inch diameter pipe with a 4 -inch diameter orifice at the bottom of a plate that is 0.9 feet high. The emergency overflow shall be raised to Elevation 940.3 feet. The Board reserves the right to review and revise these sp rovisio as rcumstances y require. Approved _ April 12 , 2001 Signature Title Valley Branch Watershed District /Vote: The grant of this permit in no way purports to permit acts which may be prohibited by other governmental. agencies. 45 797