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EROSON AND SEDIMENT CONTROL PLAN AND <br />CERTIFICATE OF SURVEY FOR <br />hyala M 4 <br />• <br />\ \ \ Line�arallel with South / <br />li'� of Gov't Lot 1, Sec. 9/ <br />\ \ ,Forth line of South 116 .8 feet /� <br />89°56'00" E 442.9 of Gov't Lot 1 / �� / - <br />\ <br />197.93 <br />--�- �_ <br />- - \ \ - <br />_ 24 .00 <br />o I PROPOSED .AUL ROr,D\� <br />�> BLACKTOP (TO �E REMOV D) <br />0 I \ � �y ELM 14" <br />cr_ <br />�, �, f6" '- ACKBERR SPRU 4„ / <br />Z CK RR PRUCE <br />10" 20" 12' <br />CL I _\ HAC#< RY SPRUCE c wAr <br />8f! <br />-_ ' C ORY <br />Zr West line of Gov't Lot 1, BRICK & S fUCCO WALL 7' " <br />O Section 9-117-23 10' 1 Box <br />m I - ELDER ' / <br />4" I <br />\ <br />EXISTING LM <br />BUILDING -----� _ 9 NO�l rr G / / <br />0 I <br />0 <br />(I <br />�I <br />o I <br />CD0 <br />0 <br />a <br />(967.8) <br />BLACKTOI <br />I .... SW corner of <br />6-1, Gov't Lot 1 <br />(967.7) <br />(967.9 <br />This survey shows the boundaries of the above described property, <br />and the location of an encroaching fire pit and shed. It does not <br />purport to show any other improvements or encroachments. <br />(965.3) a. <br />O <br />Y � <br />U I� <br />g <br />t W <br />(9672) \ (964.9) <br />0 <br />L_Z%I6.? I I 1 r V <br />GARAGE <br />CATCH; <br />BASIN . <br />STORM WATER POLLUTION PREVENTION PLAN BEFORE AND DURING CONSTRUCTION <br />1. The following storm water pollution prevention measures are shown <br />3. Notification <br />on the plans and shall be implemented prior to construction: <br />" If the rock construction entrance is filled with sediment the contractor <br />* Install silt fence around the perimeter of areas to be graded as <br />shall either replace the entrance or add additional rock with 24 hours of <br />shown on the storm water pollution plan. <br />detection or notification <br />* All temporary stockpiles must have silt fence around them to trap <br />* If sediment from the sites observed on adjacent streets or other properties, <br />sediment. <br />the contractor shall remcr a the sediment within 24 hours of detection or notification. <br />* Construct rock construction entrance at field entrance to site. <br />* If sediment from the site !s observed on adjacent streets or other properties, the <br />" Phase grading work to minimize the duration that any disturbed soil <br />inspector shall identify than source and discharge location of the sediment and instruct <br />is exposed. <br />the contractor to implem= nt additional erosion and sediment controls at those <br />* Seed and mulch must be applied within 72 hours after rough grading is <br />locations to prevent fulure discharges. <br />complete. <br />* If building materials, chemicals, or general refuse is being used, stored, disposed <br />* Locate stockpiles a minimum of 50 feet from ponds and site drainage routes. <br />of, or otherwise managef41, inappropriately, the contractor shall correct such defects <br />* Remove any sediment that has been tracked onto public or private streets <br />within 24 hours of detection or notification. <br />within hours. <br />* If excessive sediments Or debris are observed at the flared end section outfalls, <br />* Remove any spill of fuel, oil, or other chemical immediately upon detection. <br />the inspector shall determine the source and discharge locations of such materials. <br />* Store construction materials in an orderly manner. <br />If the discharge has occurred on the property, the contractor shall remove the <br />* Repair silt fences, rock construction entrances, and other erosion and <br />sediments and debris wit iin 24 hours of notification and correct the source of <br />sediment controls as needed. <br />such materials as directed by the inspector. <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 />* Contractor shall maintain a construction activity log with dates of major <br />grading activities, dates grading stops and spills. <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 "simles" 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). <br />Permanent Erosion Control <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 flatter than 4:1 and in areas <br />of concentrated flows consists of erosion blankets and seed. <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 <br />days. Also open stockpiles need to have temporary stabilization if they are to <br />remain inactive for more than 7 days. <br />IN GOV'T`LOT 1, SECTION 9-117-23 <br />HENNEPIN� COUNT) NhNNESOTA <br />Four -Judicial Land ark <br />A <br />N. 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