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CERTIFICATE OF SURVEY FOR
<br />ALEXANDER DESIGN GROUP
<br />OF LOT 5, BLOCK 2, GRAHAM HILL. PRESERVE
<br />HENNEPIN COUNTY, MINNESOTA
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<br />I I - LEGAL DESCRIPTION I t
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<br />Lot 5, Block 2, GRAHAM HILL PRESERVE
<br />PROPOSED ELEVATIONS (VERIFY WITH BUILDER)
<br />1) GARAGE = 1024.0
<br />2) TOP OF FOUNDATION = 1024.33
<br />3) FIRST FLOOR = 1026.31
<br />4) BASEMENT = 1015.62
<br />Vii]
<br />SCALE
<br />:ComplDATA FILES/1 1JOBS/1 1-000/11001
<br />DESIGNED I REVISION
<br />DRAWN
<br />pr
<br />CHECKED
<br />11-001
<br />IN FEET
<br />1-27-2011.sci
<br />DATE
<br />1-27-11
<br />This survey shows the boundaries of the above described property,
<br />and the proposed location of a proposed house, deck, covered
<br />walk and future pool thereon. It does not purport to show an
<br />other improvements or encroachments.
<br />o Iron marker
<br />(1026.0) : Existing spot elevation
<br />1026.0 Proposed spot elevation
<br />- 1026 - Existing contour line per grading plan
<br />---—: Proposed contour line
<br />—� Proposed drainage direction
<br />Bearings shown are based upon an assumed datum
<br />DESCRIPTION
<br />REVISIONS PER ENGINEER'S LETTER
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<br />GRON ' ERG & .ASSOCIATES,
<br />CONSULTING ENGiWEERS, LAND :PURVEYORS, SITE PLANNERS
<br />445 I4ORTH WILLOW DRIVE, LONG LAKE, MN. 55356
<br />952-473-4141
<br />3390 C rcLharn Hu c t. 9--&
<br />RECEIVED
<br />JAN 2 6 ? 011
<br />CITY OF ORONO
<br />STORM WATER POLLUTION PREVENTION PLAN BEFORE AND DURING CONSTRUCTION
<br />1. The following storm water pollution prevention measures are shown
<br />on the plans and shall be implemented prior to construction:
<br />• Install silt fence around the perimeter of areas to be graded as
<br />shown on the storm water pollution plan.
<br />• All temporary stockpiles must have silt fence around them to trap
<br />sediment.
<br />• Construct rock construction entrance at field entrance to site.
<br />• Phase grading work to minimize the duration that any disturbed soil
<br />is, exposed.
<br />• Seed and mulch must be applied within 72 hours after rough grading is
<br />complete.
<br />• Locate stockpiles a minimum of 50 feet from ponds and site drainage routes.
<br />• Remove any sediment that has been tracked onto public or private streets
<br />within hours.
<br />• Remove any spill of fuel, oil, or other chemical immediately upon detection.
<br />• Store construction materials in an orderly manner.
<br />• Repair silt fences, rock construction entrances, and other erosion and
<br />sediment controls as needed.
<br />2. Storm Water Pollution Prevention After Construction
<br />The contractor shall implement the following storm water pollution prevention
<br />measures after construction:
<br />• All distrubed areas without permanent impermeable surfaces will be
<br />vegetated for final stabilization.
<br />• Silt fence and other erosion and sediment control devices will be removed
<br />after vegetation is established
<br />3. Notification
<br />* If the rock construction entrance is filled with sediment the contractor
<br />shall either replace the entrance or add additional rock with 24 hours of
<br />detection or notification
<br />• If sediment from the site is observed on adjacent streets or other properties,
<br />the contractor shall remove the sediment within 24 hours of detection or notification.
<br />• If sediment from the site is observed on adjacent streets or other properties, the
<br />inspector shall identify the source and discharge location of the sediment and instruct
<br />the contractor to implement additional erosion and sediment controls at those
<br />locations to prevent future discharges.
<br />• If building materials, chemicals, or general refuse is being used, stored, disposed
<br />of, or otherwise managed inappropriately, the contractor shall correct such defects
<br />within 24 hours of detection or notification.
<br />• If excessive sediments or debris are observed at the flared end section outfalls,
<br />the inspector shall determine the source and discharge locations of such materials.
<br />If the discharge has occurred on the property, the contractor shall remove the
<br />sediments and debris within 24 hours of notification and correct the source of
<br />such materials as directed by the inspector.
<br />Temporary Erosion Control and Sequencing
<br />1. Install perimeter control fencing per the standard detail plates. No more than
<br />600 linear feet of silt fence should be continuous and collecting at one point.
<br />Undulate the silt fence or use "simlee or crescents of silt fence.
<br />2. Install a rock construction entrance per the standard detail plate. Rock pad
<br />exits are needed where the site exits to the private drive. Rock pads should
<br />be 3 inch rock, 6 inches deep, and 75 feet long and span the full width of the
<br />exit. Geotextile fabric should be placed under the rock.
<br />3. Use horizontal slope grading
<br />4. Install erosion control around any temporary dirt stockpile areas.
<br />5. All septic areas to be fenced off for protection. Protection to extend a ---
<br />minimum of 20' outside of septic areas.
<br />6. The contractor for the project shall inspect all erosion control BMP s after
<br />each rainfall and repair as necessary and remove sediment from silf fences
<br />if it reaches 1/3 capacity.
<br />7. The contractor shall schedule his operations to minimize the amount of
<br />disturbed area at any given time. The contractor shall limit his activities
<br />to the grading limits as shown.
<br />8. Remove all temporary BMP's once the site has reached final stabilization (a
<br />uniform perennial vegetative cover with a density of 70 percent over all pervious
<br />surface areas). Oft of Om
<br />Permanent Erosion Control Pftn" $ Zonin
<br />1. All exposed soils on site must be stabilized with in 3 days:
<br />a. Stabilization on slopes flatter than 4:1 consists of disc -anchored
<br />mulch and seed; stabilization on slopes steeper than 4:1 and in areas (��
<br />of concentrated flows consists of erosion blankets and seed. QI`APPROVED
<br />2. Temporary mulch and seed is needed for exposed areas which sit fallow for
<br />3:1 or steeper in 7 days, 3:1 to 10:1 in 14 days, and flatter than 10:1 in 21 Q APPROVED 11M
<br />days. Also open stockpiles need to have temporary stabilization if they are to
<br />remain inactive for more than 7 days. 0 DENIED
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<br />I HEREBY CERTIFY THAT THIS PLAN, SPECIFICATION, OR REPORT
<br />' N C, WAS PREPARED BY ME OR UNDER MY DIRECT SUPERVISION AND
<br />■ THAT I AM A DULY LICENSED PROFESSIONAL ENGINEER AND LAND
<br />SURVEYOR UNDER THE LAWS OF THE STATE OF MINNESOTA.
<br />DATE / —Z -/—// MN LICENSE NUMBER l Z _7,r_F
<br />SCALE
<br />1 "=40'
<br />DATE
<br />1-3-11
<br />JOB NO.
<br />11-001
<br />44 1 1(
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<br />Z' 3I, 1
<br />REVISIGNS (see notes)
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