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DescriptionRev.DateGRANVIA PRESERVERESIDENTIAL DEVELOPMENTLAKE ELMO, MNSheet Title:Project #:Drawn By:Checked By:Issue Date:12256098.000MTH3524 Labore RoadWhite Bear Lake, MN 55110651.481.9120 (f) 651.481.9201www.larsonengr.comC 2026 Larson Engineering, Inc. All rights reserved.W:\2025\Civil\12256098 - Legends Of Lake Elmo\3. Working Docs\C. Drawing Files\12256098 - C700 Details.dwgLarsonEngineering, Inc.Project Title:TWIN CITIESLAND DEVELOPMENT4800 OLSON MEMORIAL HIGHWAY, SUITE 100GOLDEN VALLEY, MN 55422Mitch Honsa, P.E.Date: Lic. No.:01.22.2662020I hereby certify that this plan,specifications or report was preparedby me or under my direct supervisionand that I am a duly licensedProfessional Engineer under the lawsof the state of Minnesota.01/22/2026 PRELIMINARY PLAN SUBMITTAL - NOT FOR CONSTRUCTIONSheet:Client:EROSION DETAILSAND NOTESC708CROSS SECTIONINFILTRATION BASIN1C708VARIES(PER PLAN)SLOPE PER PLAN(4:1 MAX)6" MINSLOPE PER PLAN(4:1 MAX)NOTES:1.THE EXISTING SOILS SHALL BE PROTECTED FROM COMPACTION DUE TOCONSTRUCTION TRAFFIC. AREAS SHALL BE STAKED AND MARKED OFF, WITHONLY LOW IMPACT EQUIPMENT (TRACKED OR SIMILAR) ALLOWED.MNDOT SEED MIX: 33-261OR AS SPECIFIED ON LANDSCAPE PLANEXTEND MODIFIED SOIL UP SLOPESTO POND OUTLET ELEVATIONEXISTINGSOILSPRE-MIXED PLANTING MEDIUM:PLAISTED'S RAIN GARDEN PEATMIX (80% SAND, 20% PEAT),OREQUAL. PLANTING MEDIUMSHALL PROVIDE 0.8"/HR TO1.6"/HR INFILTRATION RATE ATSPECIFIED COMPACTION,VERIFY W/SUPPLIER.EXCAVATE POND BOTTOMTO EXISTING PERMEABLESOILS. REMOVE ANDDISPOSE OF EXISTINGTOPSOIL AND ANY SOILSNON-CONDUCIVE TOINFILTRATION. SEEGEOTECH REPORT.18" MINRETAINING WALL DETAIL2C708VARIESBACKFILL WITH NEWGOOD QUALITYTOPSOIL AND SODNEW CAPSTONENEW MODULAR BLOCKTW (SEE GRADING PLAN)CLASS 5 LEVELING PAD(12" MIN. THICKNESS, 6" WIDER THAN BLOCK)BW (SEE GRADING PLAN)BACKFILL WITH NEWGOOD QUALITYTOPSOIL AND SOD